DATAMONGO-2535 - Remove Travis CI.

To resolve XSD files properly from the classpath, their HTTPS reference must be present in the spring.schemas to avoid internet interaction for resolving an XSD file.

.gitignore

@@ -15,4 +15,3 @@ src/ant/.ant-targets-upload-dist.xml
 atlassian-ide-plugin.xml
 /.gradle/
 /.idea/
-*.graphml

.travis.yml

@@ -1,38 +0,0 @@
-language: java
-
-jdk:
-  - oraclejdk8
-
-before_install:
-  - mkdir -p downloads
-  - mkdir -p var/db var/log
-  - if [[ ! -d downloads/mongodb-linux-x86_64-ubuntu1604-${MONGO_VERSION} ]] ; then cd downloads && wget https://fastdl.mongodb.org/linux/mongodb-linux-x86_64-ubuntu1604-${MONGO_VERSION}.tgz && tar xzf mongodb-linux-x86_64-ubuntu1604-${MONGO_VERSION}.tgz && cd ..; fi
-  - downloads/mongodb-linux-x86_64-ubuntu1604-${MONGO_VERSION}/bin/mongod --version
-  - downloads/mongodb-linux-x86_64-ubuntu1604-${MONGO_VERSION}/bin/mongod --dbpath var/db --replSet rs0 --fork --logpath var/log/mongod.log
-  - sleep 10
-  - |-
-    downloads/mongodb-linux-x86_64-ubuntu1604-${MONGO_VERSION}/bin/mongo --eval "rs.initiate({_id: 'rs0', members:[{_id: 0, host: '127.0.0.1:27017'}]});"
-    sleep 15
-
-env:
-  matrix:
-    - MONGO_VERSION=4.1.10
-    - MONGO_VERSION=4.0.4
-    - MONGO_VERSION=3.6.12
-    - MONGO_VERSION=3.4.20
-  global:
-    - PROFILE=ci
-
-addons:
-  apt:
-    packages:
-      - oracle-java8-installer
-
-sudo: false
-
-cache:
-  directories:
-    - $HOME/.m2
-    - downloads
-
-script: "mvn clean dependency:list test -P${PROFILE} -Dsort"

CODE_OF_CONDUCT.adoc

@@ -24,4 +24,4 @@ Instances of abusive, harassing, or otherwise unacceptable behavior may be repor
 All complaints will be reviewed and investigated and will result in a response that is deemed necessary and appropriate to the circumstances.
 Maintainers are obligated to maintain confidentiality with regard to the reporter of an incident.
 
-This Code of Conduct is adapted from the https://contributor-covenant.org[Contributor Covenant], version 1.3.0, available at https://contributor-covenant.org/version/1/3/0/[contributor-covenant.org/version/1/3/0/].
+This Code of Conduct is adapted from the http://contributor-covenant.org[Contributor Covenant], version 1.3.0, available at http://contributor-covenant.org/version/1/3/0/[contributor-covenant.org/version/1/3/0/].

Jenkinsfile

@@ -1,219 +1,123 @@
 pipeline {
-	agent none
+    agent none
 
-	triggers {
-		pollSCM 'H/10 * * * *'
-		upstream(upstreamProjects: "spring-data-commons/master", threshold: hudson.model.Result.SUCCESS)
-	}
+    triggers {
+        pollSCM 'H/10 * * * *'
+        upstream(upstreamProjects: "spring-data-commons/1.13.x", threshold: hudson.model.Result.SUCCESS)
+    }
 
-	options {
-		disableConcurrentBuilds()
-		buildDiscarder(logRotator(numToKeepStr: '14'))
-	}
+    options {
+        disableConcurrentBuilds()
+        buildDiscarder(logRotator(numToKeepStr: '14'))
+    }
 
-	stages {
-		stage("Docker images") {
-			parallel {
-				stage('Publish JDK 8 + MongoDB 4.0') {
-					when {
-						changeset "ci/openjdk8-mongodb-4.0/**"
-					}
-					agent { label 'data' }
-					options { timeout(time: 30, unit: 'MINUTES') }
-
-					steps {
-						script {
-							def image = docker.build("springci/spring-data-openjdk8-with-mongodb-4.0", "ci/openjdk8-mongodb-4.0/")
-							docker.withRegistry('', 'hub.docker.com-springbuildmaster') {
-								image.push()
-							}
-						}
-					}
-				}
-				stage('Publish JDK 8 + MongoDB 4.1') {
-					when {
-						changeset "ci/openjdk8-mongodb-4.1/**"
-					}
-					agent { label 'data' }
-					options { timeout(time: 30, unit: 'MINUTES') }
-
-					steps {
-						script {
-							def image = docker.build("springci/spring-data-openjdk8-with-mongodb-4.1", "ci/openjdk8-mongodb-4.1/")
-							docker.withRegistry('', 'hub.docker.com-springbuildmaster') {
-								image.push()
-							}
-						}
-					}
-				}
-				stage('Publish JDK 8 + MongoDB 4.2') {
-                	when {
-                		changeset "ci/openjdk8-mongodb-4.2/**"
-                	}
-                	agent { label 'data' }
-                	options { timeout(time: 30, unit: 'MINUTES') }
-
-                	steps {
-                		script {
-                			def image = docker.build("springci/spring-data-openjdk8-with-mongodb-4.2", "ci/openjdk8-mongodb-4.2/")
-                			docker.withRegistry('', 'hub.docker.com-springbuildmaster') {
-                				image.push()
-                			}
-                		}
-                	}
+    stages {
+        stage("Test") {
+            when {
+                anyOf {
+                    branch '1.10.x'
+                    not { triggeredBy 'UpstreamCause' }
+                }
+            }
+            parallel {
+                stage("test: baseline") {
+                    agent {
+                        docker {
+                            image 'springci/spring-data-openjdk8-with-mongodb-4.0:latest'
+                            label 'data'
+                            args '-v $HOME:/tmp/jenkins-home'
+                        }
+                    }
+                    options { timeout(time: 30, unit: 'MINUTES') }
+                    steps {
+                        sh 'rm -rf ?'
+                        sh 'mkdir -p /tmp/mongodb/db /tmp/mongodb/log'
+                        sh 'mongod --dbpath /tmp/mongodb/db --replSet rs0 --fork --logpath /tmp/mongodb/log/mongod.log &'
+                        sh 'sleep 10'
+                        sh 'mongo --eval "rs.initiate({_id: \'rs0\', members:[{_id: 0, host: \'127.0.0.1:27017\'}]});"'
+                        sh 'sleep 15'
+                        sh 'MAVEN_OPTS="-Duser.name=jenkins -Duser.home=/tmp/jenkins-home" ./mvnw clean dependency:list test -Dsort -U -B'
+                    }
                 }
-			}
-		}
 
-		stage("test: baseline") {
-			when {
-				anyOf {
-					branch 'master'
-					not { triggeredBy 'UpstreamCause' }
-				}
-			}
-			agent {
-				docker {
-					image 'springci/spring-data-openjdk8-with-mongodb-4.2:latest'
-					label 'data'
-					args '-v $HOME:/tmp/jenkins-home'
-				}
-			}
-			options { timeout(time: 30, unit: 'MINUTES') }
-			steps {
-				sh 'rm -rf ?'
-				sh 'mkdir -p /tmp/mongodb/db /tmp/mongodb/log'
-				sh 'mongod --dbpath /tmp/mongodb/db --replSet rs0 --fork --logpath /tmp/mongodb/log/mongod.log &'
-				sh 'sleep 10'
-				sh 'mongo --eval "rs.initiate({_id: \'rs0\', members:[{_id: 0, host: \'127.0.0.1:27017\'}]});"'
-				sh 'sleep 15'
-				sh 'MAVEN_OPTS="-Duser.name=jenkins -Duser.home=/tmp/jenkins-home" ./mvnw clean dependency:list test -Dsort -U -B'
-			}
-		}
+            }
+        }
 
-		stage("Test other configurations") {
-			when {
-				anyOf {
-					branch 'master'
-					not { triggeredBy 'UpstreamCause' }
-				}
-			}
-			parallel {
-				stage("test: mongodb 4.0") {
-					agent {
-						docker {
-							image 'springci/spring-data-openjdk8-with-mongodb-4.0:latest'
-							label 'data'
-							args '-v $HOME:/tmp/jenkins-home'
-						}
-					}
-					options { timeout(time: 30, unit: 'MINUTES') }
-					steps {
-						sh 'rm -rf ?'
-						sh 'mkdir -p /tmp/mongodb/db /tmp/mongodb/log'
-						sh 'mongod --dbpath /tmp/mongodb/db --replSet rs0 --fork --logpath /tmp/mongodb/log/mongod.log &'
-						sh 'sleep 10'
-						sh 'mongo --eval "rs.initiate({_id: \'rs0\', members:[{_id: 0, host: \'127.0.0.1:27017\'}]});"'
-						sh 'sleep 15'
-						sh 'MAVEN_OPTS="-Duser.name=jenkins -Duser.home=/tmp/jenkins-home" ./mvnw clean dependency:list test -Dsort -U -B'
-					}
-				}
-				stage("test: mongodb 4.1") {
-					agent {
-						docker {
-							image 'springci/spring-data-openjdk8-with-mongodb-4.1:latest'
-							label 'data'
-							args '-v $HOME:/tmp/jenkins-home'
-						}
-					}
-					options { timeout(time: 30, unit: 'MINUTES') }
-					steps {
-						sh 'rm -rf ?'
-						sh 'mkdir -p /tmp/mongodb/db /tmp/mongodb/log'
-						sh 'mongod --dbpath /tmp/mongodb/db --replSet rs0 --fork --logpath /tmp/mongodb/log/mongod.log &'
-						sh 'sleep 10'
-						sh 'mongo --eval "rs.initiate({_id: \'rs0\', members:[{_id: 0, host: \'127.0.0.1:27017\'}]});"'
-						sh 'sleep 15'
-						sh 'MAVEN_OPTS="-Duser.name=jenkins -Duser.home=/tmp/jenkins-home" ./mvnw clean dependency:list test -Dsort -U -B'
-					}
-				}
-			}
-		}
+        stage('Release to artifactory') {
+            when {
+                branch 'issue/*'
+                not { triggeredBy 'UpstreamCause' }
+            }
+            agent {
+                docker {
+                    image 'adoptopenjdk/openjdk8:latest'
+                    label 'data'
+                    args '-v $HOME:/tmp/jenkins-home'
+                }
+            }
+            options { timeout(time: 20, unit: 'MINUTES') }
 
-		stage('Release to artifactory') {
-			when {
-				anyOf {
-					branch 'master'
-					not { triggeredBy 'UpstreamCause' }
-				}
-			}
-			agent {
-				docker {
-					image 'adoptopenjdk/openjdk8:latest'
-					label 'data'
-					args '-v $HOME:/tmp/jenkins-home'
-				}
-			}
-			options { timeout(time: 20, unit: 'MINUTES') }
+            environment {
+                ARTIFACTORY = credentials('02bd1690-b54f-4c9f-819d-a77cb7a9822c')
+            }
 
-			environment {
-				ARTIFACTORY = credentials('02bd1690-b54f-4c9f-819d-a77cb7a9822c')
-			}
+            steps {
+                sh 'rm -rf ?'
+                sh 'MAVEN_OPTS="-Duser.name=jenkins -Duser.home=/tmp/jenkins-home" ./mvnw -Pci,artifactory ' +
+                        '-Dartifactory.server=https://repo.spring.io ' +
+                        "-Dartifactory.username=${ARTIFACTORY_USR} " +
+                        "-Dartifactory.password=${ARTIFACTORY_PSW} " +
+                        "-Dartifactory.staging-repository=libs-snapshot-local " +
+                        "-Dartifactory.build-name=spring-data-mongodb-1.10 " +
+                        "-Dartifactory.build-number=${BUILD_NUMBER} " +
+                        '-Dmaven.test.skip=true clean deploy -U -B'
+            }
+        }
 
-			steps {
-				sh 'rm -rf ?'
-				sh 'MAVEN_OPTS="-Duser.name=jenkins -Duser.home=/tmp/jenkins-home" ./mvnw -Pci,artifactory ' +
-						'-Dartifactory.server=https://repo.spring.io ' +
-						"-Dartifactory.username=${ARTIFACTORY_USR} " +
-						"-Dartifactory.password=${ARTIFACTORY_PSW} " +
-						"-Dartifactory.staging-repository=libs-snapshot-local " +
-						"-Dartifactory.build-name=spring-data-mongodb " +
-						"-Dartifactory.build-number=${BUILD_NUMBER} " +
-						'-Dmaven.test.skip=true clean deploy -U -B'
-			}
-		}
+        stage('Release to artifactory with docs') {
+            when {
+                branch '1.10.x'
+            }
+            agent {
+                docker {
+                    image 'adoptopenjdk/openjdk8:latest'
+                    label 'data'
+                    args '-v $HOME:/tmp/jenkins-home'
+                }
+            }
+            options { timeout(time: 20, unit: 'MINUTES') }
 
-		stage('Publish documentation') {
-			when {
-				branch 'master'
-			}
-			agent {
-				docker {
-					image 'adoptopenjdk/openjdk8:latest'
-					label 'data'
-					args '-v $HOME:/tmp/jenkins-home'
-				}
-			}
-			options { timeout(time: 20, unit: 'MINUTES') }
+            environment {
+                ARTIFACTORY = credentials('02bd1690-b54f-4c9f-819d-a77cb7a9822c')
+            }
 
-			environment {
-				ARTIFACTORY = credentials('02bd1690-b54f-4c9f-819d-a77cb7a9822c')
-			}
+            steps {
+                sh 'rm -rf ?'
+                sh 'MAVEN_OPTS="-Duser.name=jenkins -Duser.home=/tmp/jenkins-home" ./mvnw -Pci,artifactory ' +
+                        '-Dartifactory.server=https://repo.spring.io ' +
+                        "-Dartifactory.username=${ARTIFACTORY_USR} " +
+                        "-Dartifactory.password=${ARTIFACTORY_PSW} " +
+                        "-Dartifactory.staging-repository=libs-snapshot-local " +
+                        "-Dartifactory.build-name=spring-data-mongodb-1.10 " +
+                        "-Dartifactory.build-number=${BUILD_NUMBER} " +
+                        '-Dmaven.test.skip=true clean deploy -U -B'
+            }
+        }
+    }
 
-			steps {
-				sh 'MAVEN_OPTS="-Duser.name=jenkins -Duser.home=/tmp/jenkins-home" ./mvnw -Pci,distribute ' +
-						'-Dartifactory.server=https://repo.spring.io ' +
-						"-Dartifactory.username=${ARTIFACTORY_USR} " +
-						"-Dartifactory.password=${ARTIFACTORY_PSW} " +
-						"-Dartifactory.distribution-repository=temp-private-local " +
-						'-Dmaven.test.skip=true clean deploy -U -B'
-			}
-		}
-	}
-
-	post {
-		changed {
-			script {
-				slackSend(
-						color: (currentBuild.currentResult == 'SUCCESS') ? 'good' : 'danger',
-						channel: '#spring-data-dev',
-						message: "${currentBuild.fullDisplayName} - `${currentBuild.currentResult}`\n${env.BUILD_URL}")
-				emailext(
-						subject: "[${currentBuild.fullDisplayName}] ${currentBuild.currentResult}",
-						mimeType: 'text/html',
-						recipientProviders: [[$class: 'CulpritsRecipientProvider'], [$class: 'RequesterRecipientProvider']],
-						body: "<a href=\"${env.BUILD_URL}\">${currentBuild.fullDisplayName} is reported as ${currentBuild.currentResult}</a>")
-			}
-		}
-	}
+    post {
+        changed {
+            script {
+                slackSend(
+                        color: (currentBuild.currentResult == 'SUCCESS') ? 'good' : 'danger',
+                        channel: '#spring-data-dev',
+                        message: "${currentBuild.fullDisplayName} - `${currentBuild.currentResult}`\n${env.BUILD_URL}")
+                emailext(
+                        subject: "[${currentBuild.fullDisplayName}] ${currentBuild.currentResult}",
+                        mimeType: 'text/html',
+                        recipientProviders: [[$class: 'CulpritsRecipientProvider'], [$class: 'RequesterRecipientProvider']],
+                        body: "<a href=\"${env.BUILD_URL}\">${currentBuild.fullDisplayName} is reported as ${currentBuild.currentResult}</a>")
+            }
+        }
+    }
 }

SECURITY.adoc

@@ -1,9 +0,0 @@
-# Security Policy
-
-## Supported Versions
-
-Please see the https://spring.io/projects/spring-data-mongodb[Spring Data MongoDB] project page for supported versions.
-
-## Reporting a Vulnerability
-
-Please don't raise security vulnerabilities here. Head over to https://pivotal.io/security to learn how to disclose them responsibly.

ci/README.adoc

@@ -1,39 +0,0 @@
-== Running CI tasks locally
-
-Since Concourse is built on top of Docker, it's easy to:
-
-* Debug what went wrong on your local machine.
-* Test out a a tweak to your `test.sh` script before sending it out.
-* Experiment against a new image before submitting your pull request.
-
-All of these use cases are great reasons to essentially run what Concourse does on your local machine.
-
-IMPORTANT: To do this you must have Docker installed on your machine.
-
-1. `docker run -it --mount type=bind,source="$(pwd)",target=/spring-data-mongodb-github springci/spring-data-8-jdk-with-mongodb /bin/bash`
-+
-This will launch the Docker image and mount your source code at `spring-data-mongodb-github`.
-+
-Next, run the `test.sh` script from inside the container:
-+
-2. `PROFILE=none spring-data-mongodb-github/ci/test.sh`
-
-Since the container is binding to your source, you can make edits from your IDE and continue to run build jobs.
-
-If you need to test the `build.sh` script, do this:
-
-1. `mkdir /tmp/spring-data-mongodb-artifactory`
-2. `docker run -it --mount type=bind,source="$(pwd)",target=/spring-data-mongodb-github --mount type=bind,source="/tmp/spring-data-mongodb-artifactory",target=/spring-data-mongodb-artifactory springci/spring-data-8-jdk-with-mongodb /bin/bash`
-+
-This will launch the Docker image and mount your source code at `spring-data-mongodb-github` and the temporary
-artifactory output directory at `spring-data-mongodb-artifactory`.
-+
-Next, run the `build.sh` script from inside the container:
-+
-3. `spring-data-mongodb-github/ci/build.sh`
-
-IMPORTANT: `build.sh` doesn't actually push to Artifactory so don't worry about accidentally deploying anything.
-It just deploys to a local folder. That way, the `artifactory-resource` later in the pipeline can pick up these artifacts
-and deliver them to artifactory.
-
-NOTE: Docker containers can eat up disk space fast! From time to time, run `docker system prune` to clean out old images.

ci/openjdk8-mongodb-4.2/Dockerfile

@@ -1,14 +0,0 @@
-FROM adoptopenjdk/openjdk8:latest
-
-RUN apt-get update && apt-get install -y apt-transport-https apt-utils gnupg2
-
-RUN apt-key adv --keyserver hkps://keyserver.ubuntu.com:443 --recv e162f504a20cdf15827f718d4b7c549a058f8b6b
-
-RUN echo "deb [ arch=amd64 ] https://repo.mongodb.org/apt/ubuntu bionic/mongodb-org/4.2 multiverse" | tee /etc/apt/sources.list.d/mongodb-org-4.2.list
-
-RUN apt-get update
-
-RUN apt-get install -y mongodb-org=4.2.0 mongodb-org-server=4.2.0 mongodb-org-shell=4.2.0 mongodb-org-mongos=4.2.0 mongodb-org-tools=4.2.0
-
-RUN apt-get clean \
- && rm -rf /var/lib/apt/lists/*

etc/formatting.xml

@@ -0,0 +1,291 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<profiles version="12">
+<profile kind="CodeFormatterProfile" name="Spring Data" version="12">
+<setting id="org.eclipse.jdt.core.formatter.comment.insert_new_line_before_root_tags" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.disabling_tag" value="@formatter:off"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_annotation" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_type_parameters" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_type_declaration" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_type_arguments" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.brace_position_for_anonymous_type_declaration" value="end_of_line"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_colon_in_case" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_brace_in_array_initializer" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.comment.new_lines_at_block_boundaries" value="true"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_new_line_in_empty_annotation_declaration" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_new_line_before_closing_brace_in_array_initializer" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_annotation" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.blank_lines_before_field" value="0"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_while" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.use_on_off_tags" value="false"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_between_empty_parens_in_annotation_type_member_declaration" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_new_line_before_else_in_if_statement" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_after_prefix_operator" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.keep_else_statement_on_same_line" value="false"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_after_ellipsis" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.comment.insert_new_line_for_parameter" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_annotation_type_declaration" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.indent_breaks_compare_to_cases" value="true"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_after_at_in_annotation" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.alignment_for_multiple_fields" value="16"/>
+<setting id="org.eclipse.jdt.core.formatter.alignment_for_expressions_in_array_initializer" value="16"/>
+<setting id="org.eclipse.jdt.core.formatter.alignment_for_conditional_expression" value="80"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_for" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_after_binary_operator" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_question_in_wildcard" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.brace_position_for_array_initializer" value="end_of_line"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_between_empty_parens_in_enum_constant" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_new_line_before_finally_in_try_statement" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_new_line_after_annotation_on_local_variable" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_new_line_before_catch_in_try_statement" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_while" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.blank_lines_after_package" value="1"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_type_parameters" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.continuation_indentation" value="2"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_after_postfix_operator" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.alignment_for_arguments_in_method_invocation" value="16"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_angle_bracket_in_type_arguments" value="do not insert"/>
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+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_switch" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_for_increments" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_method_invocation" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_colon_in_assert" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.brace_position_for_type_declaration" value="end_of_line"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_array_initializer" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_between_empty_braces_in_array_initializer" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_method_declaration" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_semicolon_in_for" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_catch" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_angle_bracket_in_parameterized_type_reference" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_multiple_field_declarations" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_annotation" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_parameterized_type_reference" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_method_invocation_arguments" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.comment.new_lines_at_javadoc_boundaries" value="true"/>
+<setting id="org.eclipse.jdt.core.formatter.blank_lines_after_imports" value="1"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_multiple_local_declarations" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.indent_body_declarations_compare_to_enum_constant_header" value="true"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_after_semicolon_in_for" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.never_indent_line_comments_on_first_column" value="false"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_semicolon_in_try_resources" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_angle_bracket_in_type_arguments" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.never_indent_block_comments_on_first_column" value="false"/>
+<setting id="org.eclipse.jdt.core.formatter.keep_then_statement_on_same_line" value="false"/>
+</profile>
+</profiles>

pom.xml

@@ -5,7 +5,7 @@
 
 	<groupId>org.springframework.data</groupId>
 	<artifactId>spring-data-mongodb-parent</artifactId>
-	<version>3.0.0.M2</version>
+	<version>1.10.24.BUILD-SNAPSHOT</version>
 	<packaging>pom</packaging>
 
 	<name>Spring Data MongoDB</name>
@@ -15,20 +15,22 @@
 	<parent>
 		<groupId>org.springframework.data.build</groupId>
 		<artifactId>spring-data-parent</artifactId>
-		<version>2.3.0.M2</version>
+		<version>1.9.24.BUILD-SNAPSHOT</version>
 	</parent>
 
 	<modules>
 		<module>spring-data-mongodb</module>
+		<module>spring-data-mongodb-cross-store</module>
+		<module>spring-data-mongodb-log4j</module>
 		<module>spring-data-mongodb-distribution</module>
 	</modules>
 
 	<properties>
 		<project.type>multi</project.type>
 		<dist.id>spring-data-mongodb</dist.id>
-		<springdata.commons>2.3.0.M2</springdata.commons>
-		<mongo>3.12.0</mongo>
-		<mongo.reactivestreams>1.13.0</mongo.reactivestreams>
+		<springdata.commons>1.13.24.BUILD-SNAPSHOT</springdata.commons>
+		<mongo>2.14.3</mongo>
+		<mongo.osgi>2.13.0</mongo.osgi>
 		<jmh.version>1.19</jmh.version>
 	</properties>
 
@@ -99,28 +101,120 @@
 			</roles>
 			<timezone>+1</timezone>
 		</developer>
-		<developer>
-			<id>mpaluch</id>
-			<name>Mark Paluch</name>
-			<email>mpaluch at pivotal.io</email>
-			<organization>Pivotal</organization>
-			<organizationUrl>https://www.pivotal.io</organizationUrl>
-			<roles>
-				<role>Developer</role>
-			</roles>
-			<timezone>+1</timezone>
-		</developer>
 	</developers>
 
 	<profiles>
+		<profile>
+
+			<id>mongo-next</id>
+			<properties>
+				<mongo>2.15.0-SNAPSHOT</mongo>
+			</properties>
+
+			<repositories>
+				<repository>
+					<id>mongo-snapshots</id>
+					<url>https://oss.sonatype.org/content/repositories/snapshots</url>
+				</repository>
+			</repositories>
+
+		</profile>
+
+		<profile>
+
+			<id>mongo3</id>
+			<properties>
+				<mongo>3.0.4</mongo>
+			</properties>
+
+		</profile>
+
+		<profile>
+
+			<id>mongo3-next</id>
+			<properties>
+				<mongo>3.0.5-SNAPSHOT</mongo>
+			</properties>
+
+			<repositories>
+				<repository>
+					<id>mongo-snapshots</id>
+					<url>https://oss.sonatype.org/content/repositories/snapshots</url>
+				</repository>
+			</repositories>
+
+		</profile>
+
+		<profile>
+
+			<id>mongo31</id>
+			<properties>
+				<mongo>3.1.1</mongo>
+			</properties>
+
+		</profile>
+
+		<profile>
+
+			<id>mongo32</id>
+			<properties>
+				<mongo>3.2.2</mongo>
+			</properties>
+
+		</profile>
+
+		<profile>
+
+			<id>mongo33</id>
+			<properties>
+				<mongo>3.3.0</mongo>
+			</properties>
+
+			<repositories>
+				<repository>
+					<id>mongo-snapshots</id>
+					<url>https://oss.sonatype.org/content/repositories/snapshots</url>
+				</repository>
+			</repositories>
+
+		</profile>
+
+		<profile>
+
+			<id>mongo34</id>
+			<properties>
+				<mongo>3.4.0</mongo>
+			</properties>
+
+		</profile>
+
+		<profile>
+
+			<id>mongo34-next</id>
+			<properties>
+				<mongo>3.4.1-SNAPSHOT</mongo>
+			</properties>
+
+			<repositories>
+				<repository>
+					<id>mongo-snapshots</id>
+					<url>https://oss.sonatype.org/content/repositories/snapshots</url>
+				</repository>
+			</repositories>
+
+		</profile>
+
 		<profile>
 			<id>benchmarks</id>
 			<modules>
 				<module>spring-data-mongodb</module>
+				<module>spring-data-mongodb-cross-store</module>
+				<module>spring-data-mongodb-log4j</module>
 				<module>spring-data-mongodb-distribution</module>
 				<module>spring-data-mongodb-benchmarks</module>
 			</modules>
 		</profile>
+
 	</profiles>
 
 	<dependencies>
@@ -134,8 +228,8 @@
 
 	<repositories>
 		<repository>
-			<id>spring-libs-milestone</id>
-			<url>https://repo.spring.io/libs-milestone</url>
+			<id>spring-libs-snapshot</id>
+			<url>https://repo.spring.io/libs-snapshot</url>
 		</repository>
 	</repositories>
 
@@ -144,11 +238,6 @@
 			<id>spring-plugins-release</id>
 			<url>https://repo.spring.io/plugins-release</url>
 		</pluginRepository>
-		<pluginRepository>
-			<id>spring-libs-milestone</id>
-			<url>https://repo.spring.io/libs-milestone</url>
-		</pluginRepository>
-
 	</pluginRepositories>
 
 </project>

spring-data-mongodb-benchmarks/README.md

@@ -1,6 +1,6 @@
 # Benchmarks
 
-Benchmarks are based on [JMH](https://openjdk.java.net/projects/code-tools/jmh/).
+Benchmarks are based on [JMH](http://openjdk.java.net/projects/code-tools/jmh/).
 
 # Running Benchmarks
 

spring-data-mongodb-benchmarks/pom.xml

@@ -7,7 +7,7 @@
 	<parent>
 		<groupId>org.springframework.data</groupId>
 		<artifactId>spring-data-mongodb-parent</artifactId>
-		<version>3.0.0.M2</version>
+		<version>1.10.24.BUILD-SNAPSHOT</version>
 		<relativePath>../pom.xml</relativePath>
 	</parent>
 
@@ -19,6 +19,7 @@
 	<properties>
 		<!-- Skip tests by default; run only if -DskipTests=false is specified or benchmarks profile is activated  -->
 		<skipTests>true</skipTests>
+		<bundlor.enabled>false</bundlor.enabled>
 	</properties>
 
 	<dependencies>
@@ -87,7 +88,6 @@
 			<plugin>
 				<artifactId>maven-surefire-plugin</artifactId>
 				<configuration>
-					<useSystemClassLoader>false</useSystemClassLoader>
 					<testSourceDirectory>${project.build.sourceDirectory}</testSourceDirectory>
 					<testClassesDirectory>${project.build.outputDirectory}</testClassesDirectory>
 					<excludes>

spring-data-mongodb-benchmarks/src/main/java/org/springframework/data/mongodb/core/ProjectionsBenchmark.java

@@ -1,180 +0,0 @@
-/*
- * Copyright 2017-2020 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.springframework.data.mongodb.core;
-
-import org.bson.Document;
-import org.openjdk.jmh.annotations.Benchmark;
-import org.openjdk.jmh.annotations.Setup;
-import org.openjdk.jmh.annotations.TearDown;
-import org.springframework.beans.factory.annotation.Value;
-import org.springframework.data.annotation.Id;
-import org.springframework.data.mongodb.core.ExecutableFindOperation.FindWithQuery;
-import org.springframework.data.mongodb.core.ExecutableFindOperation.TerminatingFind;
-import org.springframework.data.mongodb.core.mapping.Field;
-import org.springframework.data.mongodb.core.query.BasicQuery;
-import org.springframework.data.mongodb.microbenchmark.AbstractMicrobenchmark;
-
-import com.mongodb.MongoClient;
-import com.mongodb.ServerAddress;
-import com.mongodb.client.MongoCollection;
-
-/**
- * @author Christoph Strobl
- */
-public class ProjectionsBenchmark extends AbstractMicrobenchmark {
-
-	private static final String DB_NAME = "projections-benchmark";
-	private static final String COLLECTION_NAME = "projections";
-
-	private MongoTemplate template;
-	private MongoClient client;
-	private MongoCollection<Document> mongoCollection;
-
-	private Person source;
-
-	private FindWithQuery<Person> asPerson;
-	private FindWithQuery<DtoProjection> asDtoProjection;
-	private FindWithQuery<ClosedProjection> asClosedProjection;
-	private FindWithQuery<OpenProjection> asOpenProjection;
-
-	private TerminatingFind<Person> asPersonWithFieldsRestriction;
-	private Document fields = new Document("firstname", 1);
-
-	@Setup
-	public void setUp() {
-
-		client = new MongoClient(new ServerAddress());
-		template = new MongoTemplate(client, DB_NAME);
-
-		source = new Person();
-		source.firstname = "luke";
-		source.lastname = "skywalker";
-
-		source.address = new Address();
-		source.address.street = "melenium falcon 1";
-		source.address.city = "deathstar";
-
-		template.save(source, COLLECTION_NAME);
-
-		asPerson = template.query(Person.class).inCollection(COLLECTION_NAME);
-		asDtoProjection = template.query(Person.class).inCollection(COLLECTION_NAME).as(DtoProjection.class);
-		asClosedProjection = template.query(Person.class).inCollection(COLLECTION_NAME).as(ClosedProjection.class);
-		asOpenProjection = template.query(Person.class).inCollection(COLLECTION_NAME).as(OpenProjection.class);
-
-		asPersonWithFieldsRestriction = template.query(Person.class).inCollection(COLLECTION_NAME)
-				.matching(new BasicQuery(new Document(), fields));
-
-		mongoCollection = client.getDatabase(DB_NAME).getCollection(COLLECTION_NAME);
-	}
-
-	@TearDown
-	public void tearDown() {
-
-		client.dropDatabase(DB_NAME);
-		client.close();
-	}
-
-	/**
-	 * Set the baseline for comparison by using the plain MongoDB java driver api without any additional fluff.
-	 *
-	 * @return
-	 */
-	@Benchmark // DATAMONGO-1733
-	public Object baseline() {
-		return mongoCollection.find().first();
-	}
-
-	/**
-	 * Read into the domain type including all fields.
-	 *
-	 * @return
-	 */
-	@Benchmark // DATAMONGO-1733
-	public Object readIntoDomainType() {
-		return asPerson.all();
-	}
-
-	/**
-	 * Read into the domain type but restrict query to only return one field.
-	 *
-	 * @return
-	 */
-	@Benchmark // DATAMONGO-1733
-	public Object readIntoDomainTypeRestrictingToOneField() {
-		return asPersonWithFieldsRestriction.all();
-	}
-
-	/**
-	 * Read into dto projection that only needs to map one field back.
-	 *
-	 * @return
-	 */
-	@Benchmark // DATAMONGO-1733
-	public Object readIntoDtoProjectionWithOneField() {
-		return asDtoProjection.all();
-	}
-
-	/**
-	 * Read into closed interface projection.
-	 *
-	 * @return
-	 */
-	@Benchmark // DATAMONGO-1733
-	public Object readIntoClosedProjectionWithOneField() {
-		return asClosedProjection.all();
-	}
-
-	/**
-	 * Read into an open projection backed by the mapped domain object.
-	 *
-	 * @return
-	 */
-	@Benchmark // DATAMONGO-1733
-	public Object readIntoOpenProjection() {
-		return asOpenProjection.all();
-	}
-
-	static class Person {
-
-		@Id String id;
-		String firstname;
-		String lastname;
-		Address address;
-	}
-
-	static class Address {
-
-		String city;
-		String street;
-	}
-
-	static class DtoProjection {
-
-		@Field("firstname") String name;
-	}
-
-	static interface ClosedProjection {
-
-		String getFirstname();
-	}
-
-	static interface OpenProjection {
-
-		@Value("#{target.firstname}")
-		String name();
-	}
-
-}

spring-data-mongodb-benchmarks/src/main/java/org/springframework/data/mongodb/core/convert/DbRefMappingBenchmark.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2017-2020 the original author or authors.
+ * Copyright 2017-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -58,7 +58,7 @@ public class DbRefMappingBenchmark extends AbstractMicrobenchmark {
 		client = new MongoClient(new ServerAddress());
 		template = new MongoTemplate(client, DB_NAME);
 
-		List<RefObject> refObjects = new ArrayList<>();
+		List<RefObject> refObjects = new ArrayList<RefObject>();
 		for (int i = 0; i < 1; i++) {
 			RefObject o = new RefObject();
 			template.save(o);

spring-data-mongodb-benchmarks/src/main/java/org/springframework/data/mongodb/core/convert/MappingMongoConverterBenchmark.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2017-2020 the original author or authors.
+ * Copyright 2017-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -27,7 +27,6 @@ import java.util.List;
 import java.util.Map;
 import java.util.UUID;
 
-import org.bson.Document;
 import org.bson.types.ObjectId;
 import org.openjdk.jmh.annotations.Benchmark;
 import org.openjdk.jmh.annotations.Scope;
@@ -41,8 +40,10 @@ import org.springframework.data.mongodb.core.mapping.Field;
 import org.springframework.data.mongodb.core.mapping.MongoMappingContext;
 import org.springframework.data.mongodb.microbenchmark.AbstractMicrobenchmark;
 
+import com.mongodb.BasicDBObject;
 import com.mongodb.MongoClient;
 import com.mongodb.ServerAddress;
+import com.mongodb.util.JSON;
 
 /**
  * @author Christoph Strobl
@@ -55,10 +56,10 @@ public class MappingMongoConverterBenchmark extends AbstractMicrobenchmark {
 	private MongoClient client;
 	private MongoMappingContext mappingContext;
 	private MappingMongoConverter converter;
-	private Document documentWith2Properties, documentWith2PropertiesAnd1Nested;
+	private BasicDBObject documentWith2Properties, documentWith2PropertiesAnd1Nested;
 	private Customer objectWith2PropertiesAnd1Nested;
 
-	private Document documentWithFlatAndComplexPropertiesPlusListAndMap;
+	private BasicDBObject documentWithFlatAndComplexPropertiesPlusListAndMap;
 	private SlightlyMoreComplexObject objectWithFlatAndComplexPropertiesPlusListAndMap;
 
 	@Setup
@@ -73,15 +74,15 @@ public class MappingMongoConverterBenchmark extends AbstractMicrobenchmark {
 		DbRefResolver dbRefResolver = new DefaultDbRefResolver(new SimpleMongoDbFactory(client, DB_NAME));
 
 		this.converter = new MappingMongoConverter(dbRefResolver, mappingContext);
-		this.converter.setCustomConversions(new MongoCustomConversions(Collections.emptyList()));
+		this.converter.setCustomConversions(new CustomConversions(Collections.emptyList()));
 		this.converter.afterPropertiesSet();
 
 		// just a flat document
-		this.documentWith2Properties = new Document("firstname", "Dave").append("lastname", "Matthews");
+		this.documentWith2Properties = new BasicDBObject("firstname", "Dave").append("lastname", "Matthews");
 
 		// document with a nested one
-		Document address = new Document("zipCode", "ABCDE").append("city", "Some Place");
-		this.documentWith2PropertiesAnd1Nested = new Document("firstname", "Dave").//
+		BasicDBObject address = new BasicDBObject("zipCode", "ABCDE").append("city", "Some Place");
+		this.documentWith2PropertiesAnd1Nested = new BasicDBObject("firstname", "Dave").//
 				append("lastname", "Matthews").//
 				append("address", address);
 
@@ -94,7 +95,7 @@ public class MappingMongoConverterBenchmark extends AbstractMicrobenchmark {
 		objectWithFlatAndComplexPropertiesPlusListAndMap.addressList = Arrays.asList(new Address("zip-1", "city-1"),
 				new Address("zip-2", "city-2"));
 		objectWithFlatAndComplexPropertiesPlusListAndMap.customer = objectWith2PropertiesAnd1Nested;
-		objectWithFlatAndComplexPropertiesPlusListAndMap.customerMap = new LinkedHashMap<>();
+		objectWithFlatAndComplexPropertiesPlusListAndMap.customerMap = new LinkedHashMap<String, Customer>();
 		objectWithFlatAndComplexPropertiesPlusListAndMap.customerMap.put("dave", objectWith2PropertiesAnd1Nested);
 		objectWithFlatAndComplexPropertiesPlusListAndMap.customerMap.put("deborah",
 				new Customer("Deborah Anne", "Dyer", new Address("?", "london")));
@@ -108,7 +109,7 @@ public class MappingMongoConverterBenchmark extends AbstractMicrobenchmark {
 		objectWithFlatAndComplexPropertiesPlusListAndMap.stringTwo = " (╯°□°）╯︵ ┻━┻";
 
 		// JSON equivalent of objectWithFlatAndComplexPropertiesPlusListAndMap
-		documentWithFlatAndComplexPropertiesPlusListAndMap = Document.parse(
+		documentWithFlatAndComplexPropertiesPlusListAndMap = (BasicDBObject) JSON.parse(
 				"{ \"_id\" : \"517f6aee-e9e0-44f0-88ed-f3694a019f27\", \"intOne\" : -2147483648, \"intTwo\" : 2147483647, \"stringOne\" : \"¯\\\\_(ツ)_/¯\", \"stringTwo\" : \" (╯°□°）╯︵ ┻━┻\", \"explicit-field-name\" : \"supercalifragilisticexpialidocious\", \"location\" : { \"x\" : -33.865143, \"y\" : 151.2099 }, \"objectWith2PropertiesAnd1Nested\" : { \"firstname\" : \"Dave\", \"lastname\" : \"Matthews\", \"address\" : { \"zipCode\" : \"zipCode\", \"city\" : \"City\" } }, \"addressList\" : [{ \"zipCode\" : \"zip-1\", \"city\" : \"city-1\" }, { \"zipCode\" : \"zip-2\", \"city\" : \"city-2\" }], \"customerMap\" : { \"dave\" : { \"firstname\" : \"Dave\", \"lastname\" : \"Matthews\", \"address\" : { \"zipCode\" : \"zipCode\", \"city\" : \"City\" } }, \"deborah\" : { \"firstname\" : \"Deborah Anne\", \"lastname\" : \"Dyer\", \"address\" : { \"zipCode\" : \"?\", \"city\" : \"london\" } }, \"eddie\" : { \"firstname\" : \"Eddie\", \"lastname\" : \"Vedder\", \"address\" : { \"zipCode\" : \"??\", \"city\" : \"Seattle\" } } }, \"_class\" : \"org.springframework.data.mongodb.core.convert.MappingMongoConverterBenchmark$SlightlyMoreComplexObject\" }");
 
 	}
@@ -131,9 +132,9 @@ public class MappingMongoConverterBenchmark extends AbstractMicrobenchmark {
 	}
 
 	@Benchmark // DATAMONGO-1720
-	public Document writeObjectWith2PropertiesAnd1NestedObject() {
+	public BasicDBObject writeObjectWith2PropertiesAnd1NestedObject() {
 
-		Document sink = new Document();
+		BasicDBObject sink = new BasicDBObject();
 		converter.write(objectWith2PropertiesAnd1Nested, sink);
 		return sink;
 	}
@@ -146,7 +147,7 @@ public class MappingMongoConverterBenchmark extends AbstractMicrobenchmark {
 	@Benchmark // DATAMONGO-1720
 	public Object writeObjectWithListAndMapsOfComplexType() {
 
-		Document sink = new Document();
+		BasicDBObject sink = new BasicDBObject();
 		converter.write(objectWithFlatAndComplexPropertiesPlusListAndMap, sink);
 		return sink;
 	}

spring-data-mongodb-benchmarks/src/main/java/org/springframework/data/mongodb/microbenchmark/AbstractMicrobenchmark.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2017-2020 the original author or authors.
+ * Copyright 2017-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -34,6 +34,7 @@ import org.openjdk.jmh.runner.options.ChainedOptionsBuilder;
 import org.openjdk.jmh.runner.options.OptionsBuilder;
 import org.openjdk.jmh.runner.options.TimeValue;
 import org.springframework.core.env.StandardEnvironment;
+import org.springframework.data.mongodb.microbenchmark.ResultsWriter.Utils;
 import org.springframework.util.CollectionUtils;
 import org.springframework.util.ResourceUtils;
 import org.springframework.util.StringUtils;
@@ -320,7 +321,7 @@ public class AbstractMicrobenchmark {
 
 		String uri = environment.getProperty("publishTo");
 		try {
-			ResultsWriter.forUri(uri).write(results);
+			Utils.forUri(uri).write(results);
 		} catch (Exception e) {
 			System.err.println(String.format("Cannot save benchmark results to '%s'. Error was %s.", uri, e));
 		}

spring-data-mongodb-benchmarks/src/main/java/org/springframework/data/mongodb/microbenchmark/HttpResultsWriter.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2017-2020 the original author or authors.
+ * Copyright 2017-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -21,8 +21,7 @@ import java.io.OutputStream;
 import java.net.HttpURLConnection;
 import java.net.URL;
 import java.net.URLConnection;
-import java.nio.charset.StandardCharsets;
-import java.time.Duration;
+import java.nio.charset.Charset;
 import java.util.Collection;
 
 import org.openjdk.jmh.results.RunResult;
@@ -58,8 +57,8 @@ class HttpResultsWriter implements ResultsWriter {
 		String gitCommitId = env.getProperty("git.commit.id", "unknown");
 
 		HttpURLConnection connection = (HttpURLConnection) new URL(url).openConnection();
-		connection.setConnectTimeout((int) Duration.ofSeconds(1).toMillis());
-		connection.setReadTimeout((int) Duration.ofSeconds(1).toMillis());
+		connection.setConnectTimeout(1000);
+		connection.setReadTimeout(1000);
 		connection.setDoOutput(true);
 		connection.setRequestMethod("POST");
 
@@ -69,8 +68,14 @@ class HttpResultsWriter implements ResultsWriter {
 		connection.addRequestProperty("X-Git-Dirty", gitDirty);
 		connection.addRequestProperty("X-Git-Commit-Id", gitCommitId);
 
-		try (OutputStream output = connection.getOutputStream()) {
-			output.write(ResultsWriter.jsonifyResults(results).getBytes(StandardCharsets.UTF_8));
+		OutputStream output = null;
+		try {
+			output = connection.getOutputStream();
+			output.write(ResultsWriter.Utils.jsonifyResults(results).getBytes(Charset.forName("UTF-8")));
+		} finally {
+			if (output != null) {
+				output.close();
+			}
 		}
 
 		if (connection.getResponseCode() >= 400) {

spring-data-mongodb-benchmarks/src/main/java/org/springframework/data/mongodb/microbenchmark/MongoResultsWriter.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2017-2020 the original author or authors.
+ * Copyright 2017-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,20 +15,20 @@
  */
 package org.springframework.data.mongodb.microbenchmark;
 
+import java.net.UnknownHostException;
 import java.util.Collection;
 import java.util.Date;
 import java.util.List;
 
-import org.bson.Document;
 import org.openjdk.jmh.results.RunResult;
 import org.springframework.core.env.StandardEnvironment;
 import org.springframework.util.ObjectUtils;
 import org.springframework.util.StringUtils;
 
 import com.mongodb.BasicDBObject;
+import com.mongodb.DB;
 import com.mongodb.MongoClient;
 import com.mongodb.MongoClientURI;
-import com.mongodb.client.MongoDatabase;
 import com.mongodb.util.JSON;
 
 /**
@@ -57,16 +57,22 @@ class MongoResultsWriter implements ResultsWriter {
 		String gitCommitId = env.getProperty("git.commit.id", "unknown");
 
 		MongoClientURI uri = new MongoClientURI(this.uri);
-		MongoClient client = new MongoClient(uri);
+		MongoClient client = null;
+
+		try {
+			client = new MongoClient(uri);
+		} catch (UnknownHostException e) {
+			throw new RuntimeException(e);
+		}
 
 		String dbName = StringUtils.hasText(uri.getDatabase()) ? uri.getDatabase() : "spring-data-mongodb-benchmarks";
-		MongoDatabase db = client.getDatabase(dbName);
+		DB db = client.getDB(dbName);
 
-		for (BasicDBObject dbo : (List<BasicDBObject>) JSON.parse(ResultsWriter.jsonifyResults(results))) {
+		for (BasicDBObject dbo : (List<BasicDBObject>) JSON.parse(Utils.jsonifyResults(results))) {
 
 			String collectionName = extractClass(dbo.get("benchmark").toString());
 
-			Document sink = new Document();
+			BasicDBObject sink = new BasicDBObject();
 			sink.append("_version", projectVersion);
 			sink.append("_branch", gitBranch);
 			sink.append("_commit", gitCommitId);
@@ -75,9 +81,9 @@ class MongoResultsWriter implements ResultsWriter {
 			sink.append("_date", now);
 			sink.append("_snapshot", projectVersion.toLowerCase().contains("snapshot"));
 
-			sink.putAll(dbo);
+			sink.putAll(dbo.toMap());
 
-			db.getCollection(collectionName).insertOne(fixDocumentKeys(sink));
+			db.getCollection(collectionName).insert(fixDocumentKeys(sink));
 		}
 
 		client.close();
@@ -89,17 +95,15 @@ class MongoResultsWriter implements ResultsWriter {
 	 * @param doc
 	 * @return
 	 */
-	private Document fixDocumentKeys(Document doc) {
+	private BasicDBObject fixDocumentKeys(BasicDBObject doc) {
 
-		Document sanitized = new Document();
+		BasicDBObject sanitized = new BasicDBObject();
 
 		for (Object key : doc.keySet()) {
 
 			Object value = doc.get(key);
-			if (value instanceof Document) {
-				value = fixDocumentKeys((Document) value);
-			} else if (value instanceof BasicDBObject) {
-				value = fixDocumentKeys(new Document((BasicDBObject) value));
+			if (value instanceof BasicDBObject) {
+				value = fixDocumentKeys((BasicDBObject) value);
 			}
 
 			if (key instanceof String) {

spring-data-mongodb-benchmarks/src/main/java/org/springframework/data/mongodb/microbenchmark/ResultsWriter.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2017-2020 the original author or authors.
+ * Copyright 2017-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -19,7 +19,7 @@ import lombok.SneakyThrows;
 
 import java.io.ByteArrayOutputStream;
 import java.io.PrintStream;
-import java.nio.charset.StandardCharsets;
+import java.nio.charset.Charset;
 import java.util.Collection;
 
 import org.openjdk.jmh.results.RunResult;
@@ -39,29 +39,33 @@ interface ResultsWriter {
 	 */
 	void write(Collection<RunResult> results);
 
-	/**
-	 * Get the uri specific {@link ResultsWriter}.
-	 *
-	 * @param uri must not be {@literal null}.
-	 * @return
-	 */
-	static ResultsWriter forUri(String uri) {
-		return uri.startsWith("mongodb:") ? new MongoResultsWriter(uri) : new HttpResultsWriter(uri);
+	/* non Java8 hack */
+	class Utils {
+
+		/**
+		 * Get the uri specific {@link ResultsWriter}.
+		 *
+		 * @param uri must not be {@literal null}.
+		 * @return
+		 */
+		static ResultsWriter forUri(String uri) {
+			return uri.startsWith("mongodb:") ? new MongoResultsWriter(uri) : new HttpResultsWriter(uri);
+		}
+
+		/**
+		 * Convert {@link RunResult}s to JMH Json representation.
+		 *
+		 * @param results
+		 * @return json string representation of results.
+		 * @see org.openjdk.jmh.results.format.JSONResultFormat
+		 */
+		@SneakyThrows
+		static String jsonifyResults(Collection<RunResult> results) {
+
+			ByteArrayOutputStream baos = new ByteArrayOutputStream();
+			ResultFormatFactory.getInstance(ResultFormatType.JSON, new PrintStream(baos, true, "UTF-8")).writeOut(results);
+			return new String(baos.toByteArray(), Charset.forName("UTF-8"));
+		}
 	}
 
-	/**
-	 * Convert {@link RunResult}s to JMH Json representation.
-	 *
-	 * @param results
-	 * @return json string representation of results.
-	 * @see org.openjdk.jmh.results.format.JSONResultFormat
-	 */
-	@SneakyThrows
-	static String jsonifyResults(Collection<RunResult> results) {
-
-		ByteArrayOutputStream baos = new ByteArrayOutputStream();
-		ResultFormatFactory.getInstance(ResultFormatType.JSON, new PrintStream(baos, true, "UTF-8")).writeOut(results);
-
-		return new String(baos.toByteArray(), StandardCharsets.UTF_8);
-	}
 }

spring-data-mongodb-cross-store/aop.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<aspectj>
+    <aspects>
+        <aspect name="org.springframework.beans.factory.aspectj.AnnotationBeanConfigurerAspect" />
+        <aspect name="org.springframework.data.mongodb.crossstore.MongoDocumentBacking" />
+    </aspects>
+</aspectj>

spring-data-mongodb-cross-store/pom.xml

@@ -0,0 +1,140 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/maven-v4_0_0.xsd">
+
+	<modelVersion>4.0.0</modelVersion>
+
+	<parent>
+		<groupId>org.springframework.data</groupId>
+		<artifactId>spring-data-mongodb-parent</artifactId>
+		<version>1.10.24.BUILD-SNAPSHOT</version>
+		<relativePath>../pom.xml</relativePath>
+	</parent>
+
+	<artifactId>spring-data-mongodb-cross-store</artifactId>
+	<name>Spring Data MongoDB - Cross-Store Support</name>
+
+	<properties>
+		<jpa>2.0.0</jpa>
+		<hibernate>3.6.10.Final</hibernate>
+		<project.root>${basedir}/..</project.root>
+	</properties>
+
+	<dependencies>
+
+		<!-- Spring -->
+		<dependency>
+			<groupId>org.springframework</groupId>
+			<artifactId>spring-beans</artifactId>
+			<exclusions>
+				<exclusion>
+					<groupId>commons-logging</groupId>
+					<artifactId>commons-logging</artifactId>
+				</exclusion>
+			</exclusions>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework</groupId>
+			<artifactId>spring-tx</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework</groupId>
+			<artifactId>spring-aspects</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework</groupId>
+			<artifactId>spring-orm</artifactId>
+		</dependency>
+
+		<!-- Spring Data -->
+		<dependency>
+			<groupId>org.springframework.data</groupId>
+			<artifactId>spring-data-mongodb</artifactId>
+			<version>1.10.24.BUILD-SNAPSHOT</version>
+		</dependency>
+
+		<dependency>
+			<groupId>org.aspectj</groupId>
+			<artifactId>aspectjrt</artifactId>
+			<version>${aspectj}</version>
+		</dependency>
+
+		<!-- JPA -->
+		<dependency>
+			<groupId>org.eclipse.persistence</groupId>
+			<artifactId>javax.persistence</artifactId>
+			<version>${jpa}</version>
+			<optional>true</optional>
+		</dependency>
+
+		<!-- For Tests -->
+		<dependency>
+			<groupId>org.hibernate</groupId>
+			<artifactId>hibernate-entitymanager</artifactId>
+			<version>${hibernate}</version>
+			<scope>test</scope>
+		</dependency>
+		<dependency>
+			<groupId>hsqldb</groupId>
+			<artifactId>hsqldb</artifactId>
+			<version>1.8.0.10</version>
+			<scope>test</scope>
+		</dependency>
+		<dependency>
+			<groupId>javax.validation</groupId>
+			<artifactId>validation-api</artifactId>
+			<version>${validation}</version>
+			<scope>test</scope>
+		</dependency>
+		<dependency>
+			<groupId>org.hibernate</groupId>
+			<artifactId>hibernate-validator</artifactId>
+			<version>4.0.2.GA</version>
+			<scope>test</scope>
+		</dependency>
+
+	</dependencies>
+
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>org.codehaus.mojo</groupId>
+				<artifactId>aspectj-maven-plugin</artifactId>
+				<version>1.6</version>
+				<dependencies>
+					<dependency>
+						<groupId>org.aspectj</groupId>
+						<artifactId>aspectjrt</artifactId>
+						<version>${aspectj}</version>
+					</dependency>
+					<dependency>
+						<groupId>org.aspectj</groupId>
+						<artifactId>aspectjtools</artifactId>
+						<version>${aspectj}</version>
+					</dependency>
+				</dependencies>
+				<executions>
+					<execution>
+						<goals>
+							<goal>compile</goal>
+							<goal>test-compile</goal>
+						</goals>
+					</execution>
+				</executions>
+				<configuration>
+					<outxml>true</outxml>
+					<aspectLibraries>
+						<aspectLibrary>
+							<groupId>org.springframework</groupId>
+							<artifactId>spring-aspects</artifactId>
+						</aspectLibrary>
+					</aspectLibraries>
+					<complianceLevel>${source.level}</complianceLevel>
+					<source>${source.level}</source>
+					<target>${source.level}</target>
+					<xmlConfigured>aop.xml</xmlConfigured>
+				</configuration>
+			</plugin>
+		</plugins>
+	</build>
+
+</project>

spring-data-mongodb-cross-store/src/main/java/org/springframework/data/mongodb/crossstore/DocumentBacked.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2019-2020 the original author or authors.
+ * Copyright 2011-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -13,15 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.springframework.data.mongodb.repository;
+package org.springframework.data.mongodb.crossstore;
 
-import lombok.Value;
+import org.springframework.data.crossstore.ChangeSetBacked;
 
-/**
- * @author Christoph Strobl
- */
-@Value
-class SumAge {
+public interface DocumentBacked extends ChangeSetBacked {
 
-	private Long total;
 }

spring-data-mongodb-cross-store/src/main/java/org/springframework/data/mongodb/crossstore/MongoChangeSetPersister.java

@@ -0,0 +1,197 @@
+/*
+ * Copyright 2011-2019 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.data.mongodb.crossstore;
+
+import javax.persistence.EntityManagerFactory;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.dao.DataAccessException;
+import org.springframework.dao.DataAccessResourceFailureException;
+import org.springframework.dao.DataIntegrityViolationException;
+import org.springframework.data.crossstore.ChangeSet;
+import org.springframework.data.crossstore.ChangeSetBacked;
+import org.springframework.data.crossstore.ChangeSetPersister;
+import org.springframework.data.mongodb.core.CollectionCallback;
+import org.springframework.data.mongodb.core.MongoTemplate;
+import org.springframework.util.ClassUtils;
+
+import com.mongodb.BasicDBObject;
+import com.mongodb.DBCollection;
+import com.mongodb.DBObject;
+import com.mongodb.MongoException;
+
+/**
+ * @author Thomas Risberg
+ * @author Oliver Gierke
+ * @author Alex Vengrovsk
+ * @author Mark Paluch
+ */
+public class MongoChangeSetPersister implements ChangeSetPersister<Object> {
+
+	private static final String ENTITY_CLASS = "_entity_class";
+	private static final String ENTITY_ID = "_entity_id";
+	private static final String ENTITY_FIELD_NAME = "_entity_field_name";
+	private static final String ENTITY_FIELD_CLASS = "_entity_field_class";
+
+	private final Logger log = LoggerFactory.getLogger(getClass());
+
+	private MongoTemplate mongoTemplate;
+	private EntityManagerFactory entityManagerFactory;
+
+	public void setMongoTemplate(MongoTemplate mongoTemplate) {
+		this.mongoTemplate = mongoTemplate;
+	}
+
+	public void setEntityManagerFactory(EntityManagerFactory entityManagerFactory) {
+		this.entityManagerFactory = entityManagerFactory;
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see org.springframework.data.crossstore.ChangeSetPersister#getPersistentState(java.lang.Class, java.lang.Object, org.springframework.data.crossstore.ChangeSet)
+	 */
+	public void getPersistentState(Class<? extends ChangeSetBacked> entityClass, Object id, final ChangeSet changeSet)
+			throws DataAccessException, NotFoundException {
+
+		if (id == null) {
+			log.debug("Unable to load MongoDB data for null id");
+			return;
+		}
+
+		String collName = getCollectionNameForEntity(entityClass);
+
+		final DBObject dbk = new BasicDBObject();
+		dbk.put(ENTITY_ID, id);
+		dbk.put(ENTITY_CLASS, entityClass.getName());
+		if (log.isDebugEnabled()) {
+			log.debug("Loading MongoDB data for {}", dbk);
+		}
+		mongoTemplate.execute(collName, new CollectionCallback<Object>() {
+			public Object doInCollection(DBCollection collection) throws MongoException, DataAccessException {
+				for (DBObject dbo : collection.find(dbk)) {
+					String key = (String) dbo.get(ENTITY_FIELD_NAME);
+					if (log.isDebugEnabled()) {
+						log.debug("Processing key: {}", key);
+					}
+					if (!changeSet.getValues().containsKey(key)) {
+						String className = (String) dbo.get(ENTITY_FIELD_CLASS);
+						if (className == null) {
+							throw new DataIntegrityViolationException(
+									"Unble to convert property " + key + ": Invalid metadata, " + ENTITY_FIELD_CLASS + " not available");
+						}
+						Class<?> clazz = ClassUtils.resolveClassName(className, ClassUtils.getDefaultClassLoader());
+						Object value = mongoTemplate.getConverter().read(clazz, dbo);
+						if (log.isDebugEnabled()) {
+							log.debug("Adding to ChangeSet: {}", key);
+						}
+						changeSet.set(key, value);
+					}
+				}
+				return null;
+			}
+		});
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see org.springframework.data.crossstore.ChangeSetPersister#getPersistentId(org.springframework.data.crossstore.ChangeSetBacked, org.springframework.data.crossstore.ChangeSet)
+	 */
+	public Object getPersistentId(ChangeSetBacked entity, ChangeSet cs) throws DataAccessException {
+		if (log.isDebugEnabled()) {
+			log.debug("getPersistentId called on {}", entity);
+		}
+		if (entityManagerFactory == null) {
+			throw new DataAccessResourceFailureException("EntityManagerFactory cannot be null");
+		}
+
+		return entityManagerFactory.getPersistenceUnitUtil().getIdentifier(entity);
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see org.springframework.data.crossstore.ChangeSetPersister#persistState(org.springframework.data.crossstore.ChangeSetBacked, org.springframework.data.crossstore.ChangeSet)
+	 */
+	public Object persistState(ChangeSetBacked entity, ChangeSet cs) throws DataAccessException {
+		if (cs == null) {
+			log.debug("Flush: changeset was null, nothing to flush.");
+			return 0L;
+		}
+
+		if (log.isDebugEnabled()) {
+			log.debug("Flush: changeset: {}", cs.getValues());
+		}
+
+		String collName = getCollectionNameForEntity(entity.getClass());
+		if (mongoTemplate.getCollection(collName) == null) {
+			mongoTemplate.createCollection(collName);
+		}
+
+		for (String key : cs.getValues().keySet()) {
+			if (key != null && !key.startsWith("_") && !key.equals(ChangeSetPersister.ID_KEY)) {
+				Object value = cs.getValues().get(key);
+				final DBObject dbQuery = new BasicDBObject();
+				dbQuery.put(ENTITY_ID, getPersistentId(entity, cs));
+				dbQuery.put(ENTITY_CLASS, entity.getClass().getName());
+				dbQuery.put(ENTITY_FIELD_NAME, key);
+				DBObject dbId = mongoTemplate.execute(collName, new CollectionCallback<DBObject>() {
+					public DBObject doInCollection(DBCollection collection) throws MongoException, DataAccessException {
+						return collection.findOne(dbQuery);
+					}
+				});
+				if (value == null) {
+					if (log.isDebugEnabled()) {
+						log.debug("Flush: removing: {}", dbQuery);
+					}
+					mongoTemplate.execute(collName, new CollectionCallback<Object>() {
+						public Object doInCollection(DBCollection collection) throws MongoException, DataAccessException {
+							collection.remove(dbQuery);
+							return null;
+						}
+					});
+				} else {
+					final DBObject dbDoc = new BasicDBObject();
+					dbDoc.putAll(dbQuery);
+					if (log.isDebugEnabled()) {
+						log.debug("Flush: saving: {}", dbQuery);
+					}
+					mongoTemplate.getConverter().write(value, dbDoc);
+					dbDoc.put(ENTITY_FIELD_CLASS, value.getClass().getName());
+					if (dbId != null) {
+						dbDoc.put("_id", dbId.get("_id"));
+					}
+					mongoTemplate.execute(collName, new CollectionCallback<Object>() {
+						public Object doInCollection(DBCollection collection) throws MongoException, DataAccessException {
+							collection.save(dbDoc);
+							return null;
+						}
+					});
+				}
+			}
+		}
+		return 0L;
+	}
+
+	/**
+	 * Returns the collection the given entity type shall be persisted to.
+	 * 
+	 * @param entityClass must not be {@literal null}.
+	 * @return
+	 */
+	private String getCollectionNameForEntity(Class<? extends ChangeSetBacked> entityClass) {
+		return mongoTemplate.getCollectionName(entityClass);
+	}
+}

spring-data-mongodb-cross-store/src/main/java/org/springframework/data/mongodb/crossstore/MongoDocumentBacking.aj

@@ -0,0 +1,270 @@
+/*
+ * Copyright 2011-2019 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.data.mongodb.crossstore;
+
+import java.lang.reflect.Field;
+
+import javax.persistence.EntityManager;
+import javax.persistence.Transient;
+import javax.persistence.Entity;
+
+import org.aspectj.lang.JoinPoint;
+import org.aspectj.lang.reflect.FieldSignature;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.dao.DataAccessException;
+import org.springframework.data.mongodb.crossstore.RelatedDocument;
+import org.springframework.data.mongodb.crossstore.DocumentBacked;
+import org.springframework.data.crossstore.ChangeSetBackedTransactionSynchronization;
+import org.springframework.data.crossstore.ChangeSet;
+import org.springframework.data.crossstore.ChangeSetPersister;
+import org.springframework.data.crossstore.ChangeSetPersister.NotFoundException;
+import org.springframework.data.crossstore.HashMapChangeSet;
+import org.springframework.transaction.support.TransactionSynchronizationManager;
+
+/**
+ * Aspect to turn an object annotated with @Document into a persistent document using Mongo.
+ * 
+ * @author Thomas Risberg
+ */
+public aspect MongoDocumentBacking {
+
+	private static final Logger LOGGER = LoggerFactory.getLogger(MongoDocumentBacking.class);
+
+	// Aspect shared config
+	private ChangeSetPersister<Object> changeSetPersister;
+
+	public void setChangeSetPersister(ChangeSetPersister<Object> changeSetPersister) {
+		this.changeSetPersister = changeSetPersister;
+	}
+
+	// ITD to introduce N state to Annotated objects
+	declare parents : (@Entity *) implements DocumentBacked;
+
+	// The annotated fields that will be persisted in MongoDB rather than with JPA
+	declare @field: @RelatedDocument * (@Entity+ *).*:@Transient;
+
+	// -------------------------------------------------------------------------
+	// Advise user-defined constructors of ChangeSetBacked objects to create a new
+	// backing ChangeSet
+	// -------------------------------------------------------------------------
+	pointcut arbitraryUserConstructorOfChangeSetBackedObject(DocumentBacked entity) : 
+		execution((DocumentBacked+).new(..)) &&
+		!execution((DocumentBacked+).new(ChangeSet)) &&
+		this(entity);
+
+	pointcut finderConstructorOfChangeSetBackedObject(DocumentBacked entity, ChangeSet cs) : 
+		execution((DocumentBacked+).new(ChangeSet)) &&
+		this(entity) && 
+		args(cs);
+
+	protected pointcut entityFieldGet(DocumentBacked entity) :
+        get(@RelatedDocument * DocumentBacked+.*) &&
+        this(entity) &&
+        !get(* DocumentBacked.*);
+
+	protected pointcut entityFieldSet(DocumentBacked entity, Object newVal) :
+        set(@RelatedDocument * DocumentBacked+.*) &&
+        this(entity) &&
+        args(newVal) &&
+        !set(* DocumentBacked.*);
+
+	// intercept EntityManager.merge calls
+	public pointcut entityManagerMerge(EntityManager em, Object entity) : 
+    call(* EntityManager.merge(Object)) &&
+    target(em) &&
+    args(entity);
+
+	// intercept EntityManager.remove calls
+	// public pointcut entityManagerRemove(EntityManager em, Object entity) :
+	// call(* EntityManager.remove(Object)) &&
+	// target(em) &&
+	// args(entity);
+
+	// move changeSet from detached entity to the newly merged persistent object
+	Object around(EntityManager em, Object entity) : entityManagerMerge(em, entity) {
+		Object mergedEntity = proceed(em, entity);
+		if (entity instanceof DocumentBacked && mergedEntity instanceof DocumentBacked) {
+			((DocumentBacked) mergedEntity).changeSet = ((DocumentBacked) entity).getChangeSet();
+		}
+		return mergedEntity;
+	}
+
+	// clear changeSet from removed entity
+	// Object around(EntityManager em, Object entity) : entityManagerRemove(em, entity) {
+	// if (entity instanceof DocumentBacked) {
+	// removeChangeSetValues((DocumentBacked)entity);
+	// }
+	// return proceed(em, entity);
+	// }
+
+	private static void removeChangeSetValues(DocumentBacked entity) {
+		LOGGER.debug("Removing all change-set values for " + entity);
+		ChangeSet nulledCs = new HashMapChangeSet();
+		DocumentBacked documentEntity = (DocumentBacked) entity;
+		@SuppressWarnings("unchecked")
+		ChangeSetPersister<Object> changeSetPersister = (ChangeSetPersister<Object>) documentEntity.itdChangeSetPersister;
+		try {
+			changeSetPersister.getPersistentState(documentEntity.getClass(), documentEntity.get_persistent_id(),
+					documentEntity.getChangeSet());
+		} catch (DataAccessException e) {
+		} catch (NotFoundException e) {
+		}
+		for (String key : entity.getChangeSet().getValues().keySet()) {
+			nulledCs.set(key, null);
+		}
+		entity.setChangeSet(nulledCs);
+	}
+
+	before(DocumentBacked entity) : arbitraryUserConstructorOfChangeSetBackedObject(entity) {
+		LOGGER.debug("User-defined constructor called on DocumentBacked object of class " + entity.getClass());
+		// Populate all ITD fields
+		entity.setChangeSet(new HashMapChangeSet());
+		entity.itdChangeSetPersister = changeSetPersister;
+		entity.itdTransactionSynchronization = new ChangeSetBackedTransactionSynchronization(changeSetPersister, entity);
+		// registerTransactionSynchronization(entity);
+	}
+
+	private static void registerTransactionSynchronization(DocumentBacked entity) {
+		if (TransactionSynchronizationManager.isSynchronizationActive()) {
+			if (!TransactionSynchronizationManager.getSynchronizations().contains(entity.itdTransactionSynchronization)) {
+				if (LOGGER.isDebugEnabled()) {
+					LOGGER.debug("Adding transaction synchronization for " + entity);
+				}
+				TransactionSynchronizationManager.registerSynchronization(entity.itdTransactionSynchronization);
+			} else {
+				if (LOGGER.isDebugEnabled()) {
+					LOGGER.debug("Transaction synchronization already active for " + entity);
+				}
+			}
+		} else {
+			if (LOGGER.isDebugEnabled()) {
+				LOGGER.debug("Transaction synchronization is not active for " + entity);
+			}
+		}
+	}
+
+	// -------------------------------------------------------------------------
+	// ChangeSet-related mixins
+	// -------------------------------------------------------------------------
+	// Introduced field
+	@Transient
+	private ChangeSet DocumentBacked.changeSet;
+
+	@Transient
+	private ChangeSetPersister<?> DocumentBacked.itdChangeSetPersister;
+
+	@Transient
+	private ChangeSetBackedTransactionSynchronization DocumentBacked.itdTransactionSynchronization;
+
+	public void DocumentBacked.setChangeSet(ChangeSet cs) {
+		this.changeSet = cs;
+	}
+
+	public ChangeSet DocumentBacked.getChangeSet() {
+		return changeSet;
+	}
+
+	// Flush the entity state to the persistent store
+	public void DocumentBacked.flush() {
+		Object id = itdChangeSetPersister.getPersistentId(this, this.changeSet);
+		itdChangeSetPersister.persistState(this, this.changeSet);
+	}
+
+	public Object DocumentBacked.get_persistent_id() {
+		return itdChangeSetPersister.getPersistentId(this, this.changeSet);
+	}
+
+	// lifecycle methods
+	@javax.persistence.PostPersist
+	public void DocumentBacked.itdPostPersist() {
+		if (LOGGER.isDebugEnabled()) {
+			LOGGER.debug("JPA lifecycle event PrePersist: " + this.getClass().getName());
+		}
+		registerTransactionSynchronization(this);
+	}
+
+	@javax.persistence.PreUpdate
+	public void DocumentBacked.itdPreUpdate() {
+		if (LOGGER.isDebugEnabled()) {
+			LOGGER.debug("JPA lifecycle event PreUpdate: " + this.getClass().getName() + " :: " + this);
+		}
+		registerTransactionSynchronization(this);
+	}
+
+	@javax.persistence.PostUpdate
+	public void DocumentBacked.itdPostUpdate() {
+		if (LOGGER.isDebugEnabled()) {
+			LOGGER.debug("JPA lifecycle event PostUpdate: " + this.getClass().getName() + " :: " + this);
+		}
+		registerTransactionSynchronization(this);
+	}
+
+	@javax.persistence.PostRemove
+	public void DocumentBacked.itdPostRemove() {
+		if (LOGGER.isDebugEnabled()) {
+			LOGGER.debug("JPA lifecycle event PostRemove: " + this.getClass().getName() + " :: " + this);
+		}
+		registerTransactionSynchronization(this);
+		removeChangeSetValues(this);
+	}
+
+	@javax.persistence.PostLoad
+	public void DocumentBacked.itdPostLoad() {
+		if (LOGGER.isDebugEnabled()) {
+			LOGGER.debug("JPA lifecycle event PostLoad: " + this.getClass().getName() + " :: " + this);
+		}
+		registerTransactionSynchronization(this);
+	}
+
+	/**
+	 * delegates field reads to the state accessors instance
+	 */
+	Object around(DocumentBacked entity): entityFieldGet(entity) {
+		Field f = field(thisJoinPoint);
+		String propName = f.getName();
+		LOGGER.trace("GET " + f + " -> ChangeSet value property [" + propName + "] using: " + entity.getChangeSet());
+		if (entity.getChangeSet().getValues().get(propName) == null) {
+			try {
+				this.changeSetPersister
+						.getPersistentState(entity.getClass(), entity.get_persistent_id(), entity.getChangeSet());
+			} catch (NotFoundException e) {
+			}
+		}
+		Object fValue = entity.getChangeSet().getValues().get(propName);
+		if (fValue != null) {
+			return fValue;
+		}
+		return proceed(entity);
+	}
+
+	/**
+	 * delegates field writes to the state accessors instance
+	 */
+	Object around(DocumentBacked entity, Object newVal) : entityFieldSet(entity, newVal) {
+		Field f = field(thisJoinPoint);
+		String propName = f.getName();
+		LOGGER.trace("SET " + f + " -> ChangeSet number value property [" + propName + "] with value=[" + newVal + "]");
+		entity.getChangeSet().set(propName, newVal);
+		return proceed(entity, newVal);
+	}
+
+	Field field(JoinPoint joinPoint) {
+		FieldSignature fieldSignature = (FieldSignature) joinPoint.getSignature();
+		return fieldSignature.getField();
+	}
+}

spring-data-mongodb-cross-store/src/main/java/org/springframework/data/mongodb/crossstore/RelatedDocument.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2018-2020 the original author or authors.
+ * Copyright 2011-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -13,15 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.springframework.data.mongodb.monitor;
+package org.springframework.data.mongodb.crossstore;
 
-import java.util.function.Supplier;
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
 
 /**
- * @author Christoph Strobl
- * @since 2018/01
+ * @author Thomas Risberg
  */
-interface Resumeable<T> {
-
-	void resumeAt(Supplier<T> token);
+@Retention(RetentionPolicy.RUNTIME)
+@Target({ ElementType.FIELD })
+public @interface RelatedDocument {
 }

spring-data-mongodb-cross-store/src/main/java/org/springframework/data/mongodb/crossstore/package-info.java

@@ -0,0 +1,5 @@
+/**
+ * Infrastructure for Spring Data's MongoDB cross store support.
+ */
+package org.springframework.data.mongodb.crossstore;
+

spring-data-mongodb-cross-store/src/test/java/org/springframework/data/mongodb/crossstore/CrossStoreMongoTests.java

@@ -0,0 +1,199 @@
+/*
+ * Copyright 2011-2019 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.data.mongodb.crossstore;
+
+import javax.persistence.EntityManager;
+import javax.persistence.PersistenceContext;
+
+import org.junit.After;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.data.mongodb.core.MongoTemplate;
+import org.springframework.data.mongodb.crossstore.test.Address;
+import org.springframework.data.mongodb.crossstore.test.Person;
+import org.springframework.data.mongodb.crossstore.test.Resume;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+import org.springframework.transaction.PlatformTransactionManager;
+import org.springframework.transaction.TransactionStatus;
+import org.springframework.transaction.annotation.Transactional;
+import org.springframework.transaction.support.TransactionCallback;
+import org.springframework.transaction.support.TransactionTemplate;
+
+import com.mongodb.DBObject;
+
+/**
+ * Integration tests for MongoDB cross-store persistence (mainly {@link MongoChangeSetPersister}).
+ * 
+ * @author Thomas Risberg
+ * @author Oliver Gierke
+ */
+@RunWith(SpringJUnit4ClassRunner.class)
+@ContextConfiguration("classpath:/META-INF/spring/applicationContext.xml")
+public class CrossStoreMongoTests {
+
+	@Autowired
+	MongoTemplate mongoTemplate;
+
+	@PersistenceContext
+	EntityManager entityManager;
+
+	@Autowired
+	PlatformTransactionManager transactionManager;
+	TransactionTemplate txTemplate;
+
+	@Before
+	public void setUp() {
+
+		txTemplate = new TransactionTemplate(transactionManager);
+
+		clearData(Person.class);
+
+		Address address = new Address(12, "MAin St.", "Boston", "MA", "02101");
+
+		Resume resume = new Resume();
+		resume.addEducation("Skanstulls High School, 1975");
+		resume.addEducation("Univ. of Stockholm, 1980");
+		resume.addJob("DiMark, DBA, 1990-2000");
+		resume.addJob("VMware, Developer, 2007-");
+
+		final Person person = new Person("Thomas", 20);
+		person.setAddress(address);
+		person.setResume(resume);
+		person.setId(1L);
+
+		txTemplate.execute(new TransactionCallback<Void>() {
+			public Void doInTransaction(TransactionStatus status) {
+				entityManager.persist(person);
+				return null;
+			}
+		});
+	}
+
+	@After
+	public void tearDown() {
+		txTemplate.execute(new TransactionCallback<Void>() {
+			public Void doInTransaction(TransactionStatus status) {
+				entityManager.remove(entityManager.find(Person.class, 1L));
+				return null;
+			}
+		});
+	}
+
+	private void clearData(Class<?> domainType) {
+
+		String collectionName = mongoTemplate.getCollectionName(domainType);
+		mongoTemplate.dropCollection(collectionName);
+	}
+
+	@Test
+	@Transactional
+	public void testReadJpaToMongoEntityRelationship() {
+
+		Person found = entityManager.find(Person.class, 1L);
+		Assert.assertNotNull(found);
+		Assert.assertEquals(Long.valueOf(1), found.getId());
+		Assert.assertNotNull(found);
+		Assert.assertEquals(Long.valueOf(1), found.getId());
+		Assert.assertNotNull(found.getResume());
+		Assert.assertEquals("DiMark, DBA, 1990-2000" + "; " + "VMware, Developer, 2007-", found.getResume().getJobs());
+	}
+
+	@Test
+	@Transactional
+	public void testUpdatedJpaToMongoEntityRelationship() {
+
+		Person found = entityManager.find(Person.class, 1L);
+		found.setAge(44);
+		found.getResume().addJob("SpringDeveloper.com, Consultant, 2005-2006");
+
+		entityManager.merge(found);
+
+		Assert.assertNotNull(found);
+		Assert.assertEquals(Long.valueOf(1), found.getId());
+		Assert.assertNotNull(found);
+		Assert.assertEquals(Long.valueOf(1), found.getId());
+		Assert.assertNotNull(found.getResume());
+		Assert.assertEquals("DiMark, DBA, 1990-2000" + "; " + "VMware, Developer, 2007-" + "; "
+				+ "SpringDeveloper.com, Consultant, 2005-2006", found.getResume().getJobs());
+	}
+
+	@Test
+	public void testMergeJpaEntityWithMongoDocument() {
+
+		final Person detached = entityManager.find(Person.class, 1L);
+		entityManager.detach(detached);
+		detached.getResume().addJob("TargetRx, Developer, 2000-2005");
+
+		Person merged = txTemplate.execute(new TransactionCallback<Person>() {
+			public Person doInTransaction(TransactionStatus status) {
+				Person result = entityManager.merge(detached);
+				entityManager.flush();
+				return result;
+			}
+		});
+
+		Assert.assertTrue(detached.getResume().getJobs().contains("TargetRx, Developer, 2000-2005"));
+		Assert.assertTrue(merged.getResume().getJobs().contains("TargetRx, Developer, 2000-2005"));
+		final Person updated = entityManager.find(Person.class, 1L);
+		Assert.assertTrue(updated.getResume().getJobs().contains("TargetRx, Developer, 2000-2005"));
+	}
+
+	@Test
+	public void testRemoveJpaEntityWithMongoDocument() {
+
+		txTemplate.execute(new TransactionCallback<Person>() {
+			public Person doInTransaction(TransactionStatus status) {
+				Person p2 = new Person("Thomas", 20);
+				Resume r2 = new Resume();
+				r2.addEducation("Skanstulls High School, 1975");
+				r2.addJob("DiMark, DBA, 1990-2000");
+				p2.setResume(r2);
+				p2.setId(2L);
+				entityManager.persist(p2);
+				Person p3 = new Person("Thomas", 20);
+				Resume r3 = new Resume();
+				r3.addEducation("Univ. of Stockholm, 1980");
+				r3.addJob("VMware, Developer, 2007-");
+				p3.setResume(r3);
+				p3.setId(3L);
+				entityManager.persist(p3);
+				return null;
+			}
+		});
+		txTemplate.execute(new TransactionCallback<Person>() {
+			public Person doInTransaction(TransactionStatus status) {
+				final Person found2 = entityManager.find(Person.class, 2L);
+				entityManager.remove(found2);
+				return null;
+			}
+		});
+
+		boolean weFound3 = false;
+
+		for (DBObject dbo : this.mongoTemplate.getCollection(mongoTemplate.getCollectionName(Person.class)).find()) {
+			Assert.assertTrue(!dbo.get("_entity_id").equals(2L));
+			if (dbo.get("_entity_id").equals(3L)) {
+				weFound3 = true;
+			}
+		}
+		Assert.assertTrue(weFound3);
+	}
+
+}

spring-data-mongodb-cross-store/src/test/java/org/springframework/data/mongodb/crossstore/test/Address.java

@@ -0,0 +1,75 @@
+/*
+ * Copyright 2011-2019 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.data.mongodb.crossstore.test;
+
+public class Address {
+
+	private Integer streetNumber;
+	private String streetName;
+	private String city;
+	private String state;
+	private String zip;
+
+	public Address(Integer streetNumber, String streetName, String city, String state, String zip) {
+		super();
+		this.streetNumber = streetNumber;
+		this.streetName = streetName;
+		this.city = city;
+		this.state = state;
+		this.zip = zip;
+	}
+
+	public Integer getStreetNumber() {
+		return streetNumber;
+	}
+
+	public void setStreetNumber(Integer streetNumber) {
+		this.streetNumber = streetNumber;
+	}
+
+	public String getStreetName() {
+		return streetName;
+	}
+
+	public void setStreetName(String streetName) {
+		this.streetName = streetName;
+	}
+
+	public String getCity() {
+		return city;
+	}
+
+	public void setCity(String city) {
+		this.city = city;
+	}
+
+	public String getState() {
+		return state;
+	}
+
+	public void setState(String state) {
+		this.state = state;
+	}
+
+	public String getZip() {
+		return zip;
+	}
+
+	public void setZip(String zip) {
+		this.zip = zip;
+	}
+
+}

spring-data-mongodb-cross-store/src/test/java/org/springframework/data/mongodb/crossstore/test/Person.java

@@ -0,0 +1,102 @@
+/*
+ * Copyright 2011-2019 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.data.mongodb.crossstore.test;
+
+import javax.persistence.Entity;
+import javax.persistence.Id;
+
+import org.springframework.data.mongodb.crossstore.RelatedDocument;
+
+@Entity
+public class Person {
+
+	@Id
+	Long id;
+
+	private String name;
+
+	private int age;
+
+	private java.util.Date birthDate;
+
+	@RelatedDocument
+	private Address address;
+
+	@RelatedDocument
+	private Resume resume;
+
+	public Person() {
+	}
+
+	public Person(String name, int age) {
+		this.name = name;
+		this.age = age;
+		this.birthDate = new java.util.Date();
+	}
+
+	public void birthday() {
+		++age;
+	}
+
+	public Long getId() {
+		return id;
+	}
+
+	public void setId(Long id) {
+		this.id = id;
+	}
+
+	public String getName() {
+		return name;
+	}
+
+	public void setName(String name) {
+		this.name = name;
+	}
+
+	public int getAge() {
+		return age;
+	}
+
+	public void setAge(int age) {
+		this.age = age;
+	}
+
+	public java.util.Date getBirthDate() {
+		return birthDate;
+	}
+
+	public void setBirthDate(java.util.Date birthDate) {
+		this.birthDate = birthDate;
+	}
+
+	public Resume getResume() {
+		return resume;
+	}
+
+	public void setResume(Resume resume) {
+		this.resume = resume;
+	}
+
+	public Address getAddress() {
+		return address;
+	}
+
+	public void setAddress(Address address) {
+		this.address = address;
+	}
+
+}

spring-data-mongodb-cross-store/src/test/java/org/springframework/data/mongodb/crossstore/test/Resume.java

@@ -0,0 +1,63 @@
+/*
+ * Copyright 2011-2019 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.data.mongodb.crossstore.test;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.bson.types.ObjectId;
+import org.springframework.data.annotation.Id;
+import org.springframework.data.mongodb.core.mapping.Document;
+
+@Document
+public class Resume {
+
+	private static final Log LOGGER = LogFactory.getLog(Resume.class);
+
+	@Id
+	private ObjectId id;
+
+	private String education = "";
+
+	private String jobs = "";
+
+	public String getId() {
+		return id.toString();
+	}
+
+	public String getEducation() {
+		return education;
+	}
+
+	public void addEducation(String education) {
+		LOGGER.debug("Adding education " + education);
+		this.education = this.education + (this.education.length() > 0 ? "; " : "") + education;
+	}
+
+	public String getJobs() {
+		return jobs;
+	}
+
+	public void addJob(String job) {
+		LOGGER.debug("Adding job " + job);
+		this.jobs = this.jobs + (this.jobs.length() > 0 ? "; " : "") + job;
+	}
+
+	@Override
+	public String toString() {
+		return "Resume [education=" + education + ", jobs=" + jobs + "]";
+	}
+
+}

spring-data-mongodb-cross-store/src/test/resources/META-INF/persistence.xml

@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<persistence xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+             version="2.0"
+             xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd">
+  <persistence-unit name="test" transaction-type="RESOURCE_LOCAL">
+    <provider>org.hibernate.ejb.HibernatePersistence</provider>
+    <class>org.springframework.data.mongodb.crossstore.test.Person</class>
+    <properties>
+      <property name="hibernate.dialect" value="org.hibernate.dialect.HSQLDialect"/>
+      <!--value='create' to build a new database on each run; value='update' to modify an existing database; value='create-drop' means the same as 'create' but also drops tables when Hibernate closes; value='validate' makes no changes to the database-->
+      <property name="hibernate.hbm2ddl.auto" value="update"/>
+      <property name="hibernate.ejb.naming_strategy" value="org.hibernate.cfg.ImprovedNamingStrategy"/>
+    </properties>
+  </persistence-unit>
+</persistence>

spring-data-mongodb-cross-store/src/test/resources/META-INF/spring/applicationContext.xml

@@ -0,0 +1,72 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<beans xmlns="http://www.springframework.org/schema/beans"
+	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xmlns:tx="http://www.springframework.org/schema/tx"
+	xmlns:jdbc="http://www.springframework.org/schema/jdbc"
+	xmlns:context="http://www.springframework.org/schema/context"
+	xmlns:mongo="http://www.springframework.org/schema/data/mongo"
+	xsi:schemaLocation="http://www.springframework.org/schema/data/mongo http://www.springframework.org/schema/data/mongo/spring-mongo.xsd
+		http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-3.0.xsd
+		http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
+		http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
+		http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd">
+
+  <context:spring-configured/>
+
+  <context:component-scan base-package="org.springframework.persistence.mongodb.test">
+    <context:exclude-filter expression="org.springframework.stereotype.Controller" type="annotation"/>
+  </context:component-scan>
+
+  <mongo:mapping-converter/>
+  
+  <!--  Mongo config -->
+  <bean id="mongo" class="org.springframework.data.mongodb.core.MongoFactoryBean">
+    <property name="host" value="localhost"/>
+    <property name="port" value="27017"/>
+  </bean>
+
+  <bean id="mongoDbFactory" class="org.springframework.data.mongodb.core.SimpleMongoDbFactory">
+  	<constructor-arg name="mongo" ref="mongo"/>
+  	<constructor-arg name="databaseName" value="database"/>
+  </bean>
+
+  <bean id="mongoTemplate" class="org.springframework.data.mongodb.core.MongoTemplate">
+    <constructor-arg name="mongoDbFactory" ref="mongoDbFactory"/>
+    <constructor-arg name="mongoConverter" ref="mappingConverter"/>
+  </bean>
+
+  <bean class="org.springframework.data.mongodb.core.MongoExceptionTranslator"/>
+
+  <!--  Mongo aspect config -->
+  <bean class="org.springframework.data.mongodb.crossstore.MongoDocumentBacking"
+        factory-method="aspectOf">
+    <property name="changeSetPersister" ref="mongoChangeSetPersister"/>
+  </bean>
+  <bean id="mongoChangeSetPersister" 
+      class="org.springframework.data.mongodb.crossstore.MongoChangeSetPersister">
+    <property name="mongoTemplate" ref="mongoTemplate"/>
+    <property name="entityManagerFactory" ref="entityManagerFactory"/>
+  </bean>
+
+  <jdbc:embedded-database id="dataSource" type="HSQL">
+  </jdbc:embedded-database>
+
+  <bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
+    <property name="entityManagerFactory" ref="entityManagerFactory"/>
+  </bean>
+
+  <tx:annotation-driven mode="aspectj" transaction-manager="transactionManager"/>
+
+  <bean class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean" id="entityManagerFactory">
+    <property name="persistenceUnitName" value="test"/>
+    <property name="dataSource" ref="dataSource"/>
+    <property name="jpaVendorAdapter">
+      <bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
+        <property name="showSql" value="true"/>
+        <property name="generateDdl" value="true"/>
+        <property name="databasePlatform" value="org.hibernate.dialect.HSQLDialect"/>
+      </bean>
+    </property>
+  </bean>
+
+</beans>

spring-data-mongodb-cross-store/src/test/resources/logback.xml

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<configuration>
+
+	<appender name="console" class="ch.qos.logback.core.ConsoleAppender">
+		<encoder>
+			<pattern>%d %5p %40.40c:%4L - %m%n</pattern>
+		</encoder>
+	</appender>
+
+	<!-- 
+	<logger name="org.springframework" level="debug" />
+	 -->
+
+	<root level="error">
+		<appender-ref ref="console" />
+	</root>
+
+</configuration>

spring-data-mongodb-cross-store/template.mf

@@ -0,0 +1,18 @@
+Bundle-SymbolicName: org.springframework.data.mongodb.crossstore
+Bundle-Name: Spring Data MongoDB Cross Store Support
+Bundle-Vendor: Pivotal Software, Inc.
+Bundle-ManifestVersion: 2
+Import-Package:
+ sun.reflect;version="0";resolution:=optional
+Export-Template:
+ org.springframework.data.mongodb.crossstore.*;version="${project.version}"
+Import-Template:
+ com.mongodb.*;version="${mongo.osgi:[=.=.=,+1.0.0)}",
+ javax.persistence.*;version="${jpa:[=.=.=,+1.0.0)}",
+ org.aspectj.*;version="${aspectj:[1.0.0, 2.0.0)}",
+ org.bson.*;version="0",
+ org.slf4j.*;version="${slf4j:[=.=.=,+1.0.0)}",
+ org.springframework.*;version="${spring:[=.=.=.=,+1.0.0)}",
+ org.springframework.data.*;version="${springdata.commons:[=.=.=.=,+1.0.0)}",
+ org.springframework.data.mongodb.*;version="${project.version:[=.=.=.=,+1.0.0)}",
+ org.w3c.dom.*;version="0"

spring-data-mongodb-distribution/pom.xml

@@ -1,6 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-		 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
 
 	<modelVersion>4.0.0</modelVersion>
 
@@ -14,7 +13,7 @@
 	<parent>
 		<groupId>org.springframework.data</groupId>
 		<artifactId>spring-data-mongodb-parent</artifactId>
-		<version>3.0.0.M2</version>
+		<version>1.10.24.BUILD-SNAPSHOT</version>
 		<relativePath>../pom.xml</relativePath>
 	</parent>
 
@@ -32,15 +31,8 @@
 			<plugin>
 				<groupId>org.asciidoctor</groupId>
 				<artifactId>asciidoctor-maven-plugin</artifactId>
-				<configuration>
-					<attributes>
-						<mongo-reactivestreams>${mongo.reactivestreams}</mongo-reactivestreams>
-						<reactor>${reactor}</reactor>
-					</attributes>
-				</configuration>
 			</plugin>
 		</plugins>
-
 	</build>
 
 </project>

spring-data-mongodb-log4j/README.md

@@ -0,0 +1,52 @@
+# MongoDB Log4J Appender
+
+This module sets up a Log4J appender that puts logging events in MongoDB. It is fully configurable
+and connects directly to the MongoDB server using the driver. It has no dependency on any Spring package.
+
+To use it, configure a host, port, (optionally) applicationId, and database property in your Log4J configuration:
+
+    log4j.appender.stdout=org.springframework.data.mongodb.log4j.MongoLog4jAppender
+    log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
+    log4j.appender.stdout.layout.ConversionPattern=%d %p [%c] - <%m>%n
+    log4j.appender.stdout.host = localhost
+    log4j.appender.stdout.port = 27017
+    log4j.appender.stdout.database = logs
+    log4j.appender.stdout.collectionPattern = %c
+    log4j.appender.stdout.applicationId = my.application
+    log4j.appender.stdout.warnOrHigherWriteConcern = FSYNC_SAFE
+
+It will even support properties in your MDC (so long as they're Strings or support .toString()).
+
+The collection name is configurable as well. If you don't specify anything, it will use the Category name.
+If you want to specify a collection name, you can give it a Log4J pattern layout format string which will have
+the following additional MDC variables in the context when the collection name is rendered:
+
+    "year" = Calendar.YEAR
+    "month" = Calendar.MONTH + 1
+    "day" = Calendar.DAY_OF_MONTH
+    "hour" = Calendar.HOUR_OF_DAY
+    "applicationId" = configured applicationId
+
+An example log entry might look like:
+
+    {
+      "_id" : ObjectId("4d89341a8ef397e06940d5cd"),
+      "applicationId" : "my.application",
+      "name" : "org.springframework.data.mongodb.log4j.MongoLog4jAppenderIntegrationTests",
+      "level" : "DEBUG",
+      "timestamp" : ISODate("2011-03-23T16:53:46.778Z"),
+      "properties" : {
+        "property" : "one"
+      },
+      "message" : "DEBUG message"
+    }
+
+To set WriteConcern levels for WARN or higher messages, set warnOrHigherWriteConcern to one of the following:
+
+* FSYNC_SAFE
+* NONE
+* NORMAL
+* REPLICAS_SAFE
+* SAFE
+
+[http://api.mongodb.org/java/2.5-pre-/com/mongodb/WriteConcern.html#field_detail](http://api.mongodb.org/java/2.5-pre-/com/mongodb/WriteConcern.html#field_detail)

spring-data-mongodb-log4j/pom.xml

@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/maven-v4_0_0.xsd">
+	<modelVersion>4.0.0</modelVersion>
+
+	<parent>
+		<groupId>org.springframework.data</groupId>
+		<artifactId>spring-data-mongodb-parent</artifactId>
+		<version>1.10.24.BUILD-SNAPSHOT</version>
+		<relativePath>../pom.xml</relativePath>
+	</parent>
+
+	<artifactId>spring-data-mongodb-log4j</artifactId>
+	<name>Spring Data MongoDB - Log4J Appender</name>
+
+	<properties>
+		<log4j>1.2.16</log4j>
+		<project.root>${basedir}/..</project.root>
+	</properties>
+
+	<dependencies>
+
+		<!-- Logging -->
+		<dependency>
+			<groupId>log4j</groupId>
+			<artifactId>log4j</artifactId>
+			<version>${log4j}</version>
+		</dependency>
+
+	</dependencies>
+
+</project>

spring-data-mongodb-log4j/src/main/java/org/springframework/data/mongodb/log4j/MongoLog4jAppender.java

@@ -0,0 +1,298 @@
+/*
+ * Copyright 2011-2019 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.data.mongodb.log4j;
+
+import java.net.UnknownHostException;
+import java.util.Arrays;
+import java.util.Calendar;
+import java.util.Collections;
+import java.util.List;
+import java.util.Map;
+
+import org.apache.log4j.AppenderSkeleton;
+import org.apache.log4j.Level;
+import org.apache.log4j.MDC;
+import org.apache.log4j.PatternLayout;
+import org.apache.log4j.spi.LoggingEvent;
+
+import com.mongodb.BasicDBList;
+import com.mongodb.BasicDBObject;
+import com.mongodb.DB;
+import com.mongodb.Mongo;
+import com.mongodb.MongoClient;
+import com.mongodb.MongoCredential;
+import com.mongodb.ServerAddress;
+import com.mongodb.WriteConcern;
+
+/**
+ * Log4j appender writing log entries into a MongoDB instance.
+ *
+ * @author Jon Brisbin
+ * @author Oliver Gierke
+ * @author Christoph Strobl
+ * @author Ricardo Espirito Santo
+ */
+public class MongoLog4jAppender extends AppenderSkeleton {
+
+	public static final String LEVEL = "level";
+	public static final String NAME = "name";
+	public static final String APP_ID = "applicationId";
+	public static final String TIMESTAMP = "timestamp";
+	public static final String PROPERTIES = "properties";
+	public static final String TRACEBACK = "traceback";
+	public static final String MESSAGE = "message";
+	public static final String YEAR = "year";
+	public static final String MONTH = "month";
+	public static final String DAY = "day";
+	public static final String HOUR = "hour";
+
+	protected String host = "localhost";
+	protected int port = 27017;
+	protected String username;
+	protected String password;
+	protected String authenticationDatabase;
+	protected String database = "logs";
+	protected String collectionPattern = "%c";
+	protected PatternLayout collectionLayout = new PatternLayout(collectionPattern);
+	protected String applicationId = System.getProperty("APPLICATION_ID", null);
+	protected WriteConcern warnOrHigherWriteConcern = WriteConcern.ACKNOWLEDGED;
+	protected WriteConcern infoOrLowerWriteConcern = WriteConcern.UNACKNOWLEDGED;
+	protected Mongo mongo;
+	protected DB db;
+
+	public MongoLog4jAppender() {}
+
+	public MongoLog4jAppender(boolean isActive) {
+		super(isActive);
+	}
+
+	public String getHost() {
+		return host;
+	}
+
+	public void setHost(String host) {
+		this.host = host;
+	}
+
+	public int getPort() {
+		return port;
+	}
+
+	public void setPort(int port) {
+		this.port = port;
+	}
+
+	/**
+	 * @return
+	 * @since 1.10
+	 */
+	public String getUsername() {
+		return username;
+	}
+
+	/**
+	 * @param username may be {@literal null} for unauthenticated access.
+	 * @since 1.10
+	 */
+	public void setUsername(String username) {
+		this.username = username;
+	}
+
+	/**
+	 * @return
+	 * @since 1.10
+	 */
+	public String getPassword() {
+		return password;
+	}
+
+	/**
+	 * @param password may be {@literal null} for unauthenticated access.
+	 * @since 1.10
+	 */
+	public void setPassword(String password) {
+		this.password = password;
+	}
+
+	/**
+	 * @return
+	 */
+	public String getAuthenticationDatabase() {
+		return authenticationDatabase;
+	}
+
+	/**
+	 * @param authenticationDatabase may be {@literal null} to use {@link #getDatabase()} as authentication database.
+	 * @since 1.10
+	 */
+	public void setAuthenticationDatabase(String authenticationDatabase) {
+		this.authenticationDatabase = authenticationDatabase;
+	}
+
+	public String getDatabase() {
+		return database;
+	}
+
+	public void setDatabase(String database) {
+		this.database = database;
+	}
+
+	public String getCollectionPattern() {
+		return collectionPattern;
+	}
+
+	public void setCollectionPattern(String collectionPattern) {
+		this.collectionPattern = collectionPattern;
+		this.collectionLayout = new PatternLayout(collectionPattern);
+	}
+
+	public String getApplicationId() {
+		return applicationId;
+	}
+
+	public void setApplicationId(String applicationId) {
+		this.applicationId = applicationId;
+	}
+
+	public String getWarnOrHigherWriteConcern() {
+		return warnOrHigherWriteConcern.toString();
+	}
+
+	public void setWarnOrHigherWriteConcern(String wc) {
+		this.warnOrHigherWriteConcern = WriteConcern.valueOf(wc);
+	}
+
+	public String getInfoOrLowerWriteConcern() {
+		return infoOrLowerWriteConcern.toString();
+	}
+
+	public void setInfoOrLowerWriteConcern(String wc) {
+		this.infoOrLowerWriteConcern = WriteConcern.valueOf(wc);
+	}
+
+	protected void connectToMongo() throws UnknownHostException {
+
+		this.mongo = createMongoClient();
+		this.db = mongo.getDB(database);
+	}
+
+	private MongoClient createMongoClient() throws UnknownHostException {
+
+		ServerAddress serverAddress = new ServerAddress(host, port);
+
+		if (null == password || null == username) {
+			return new MongoClient(serverAddress);
+		}
+
+		String authenticationDatabaseToUse = authenticationDatabase == null ? this.database : authenticationDatabase;
+		MongoCredential mongoCredential = MongoCredential.createCredential(username,
+				authenticationDatabaseToUse, password.toCharArray());
+		List<MongoCredential> credentials = Collections.singletonList(mongoCredential);
+		return new MongoClient(serverAddress, credentials);
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see org.apache.log4j.AppenderSkeleton#append(org.apache.log4j.spi.LoggingEvent)
+	 */
+	@Override
+	@SuppressWarnings({ "unchecked" })
+	protected void append(final LoggingEvent event) {
+		if (null == db) {
+			try {
+				connectToMongo();
+			} catch (UnknownHostException e) {
+				throw new RuntimeException(e.getMessage(), e);
+			}
+		}
+
+		BasicDBObject dbo = new BasicDBObject();
+		if (null != applicationId) {
+			dbo.put(APP_ID, applicationId);
+			MDC.put(APP_ID, applicationId);
+		}
+		dbo.put(NAME, event.getLogger().getName());
+		dbo.put(LEVEL, event.getLevel().toString());
+		Calendar tstamp = Calendar.getInstance();
+		tstamp.setTimeInMillis(event.getTimeStamp());
+		dbo.put(TIMESTAMP, tstamp.getTime());
+
+		// Copy properties into document
+		Map<Object, Object> props = event.getProperties();
+		if (null != props && !props.isEmpty()) {
+			BasicDBObject propsDbo = new BasicDBObject();
+			for (Map.Entry<Object, Object> entry : props.entrySet()) {
+				propsDbo.put(entry.getKey().toString(), entry.getValue().toString());
+			}
+			dbo.put(PROPERTIES, propsDbo);
+		}
+
+		// Copy traceback info (if there is any) into the document
+		String[] traceback = event.getThrowableStrRep();
+		if (null != traceback && traceback.length > 0) {
+			BasicDBList tbDbo = new BasicDBList();
+			tbDbo.addAll(Arrays.asList(traceback));
+			dbo.put(TRACEBACK, tbDbo);
+		}
+
+		// Put the rendered message into the document
+		dbo.put(MESSAGE, event.getRenderedMessage());
+
+		// Insert the document
+		Calendar now = Calendar.getInstance();
+		MDC.put(YEAR, now.get(Calendar.YEAR));
+		MDC.put(MONTH, String.format("%1$02d", now.get(Calendar.MONTH) + 1));
+		MDC.put(DAY, String.format("%1$02d", now.get(Calendar.DAY_OF_MONTH)));
+		MDC.put(HOUR, String.format("%1$02d", now.get(Calendar.HOUR_OF_DAY)));
+
+		String coll = collectionLayout.format(event);
+
+		MDC.remove(YEAR);
+		MDC.remove(MONTH);
+		MDC.remove(DAY);
+		MDC.remove(HOUR);
+		if (null != applicationId) {
+			MDC.remove(APP_ID);
+		}
+
+		WriteConcern wc;
+		if (event.getLevel().isGreaterOrEqual(Level.WARN)) {
+			wc = warnOrHigherWriteConcern;
+		} else {
+			wc = infoOrLowerWriteConcern;
+		}
+		db.getCollection(coll).insert(dbo, wc);
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see org.apache.log4j.AppenderSkeleton#close()
+	 */
+	public void close() {
+
+		if (mongo != null) {
+			mongo.close();
+		}
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see org.apache.log4j.AppenderSkeleton#requiresLayout()
+	 */
+	public boolean requiresLayout() {
+		return true;
+	}
+}

spring-data-mongodb-log4j/src/main/java/org/springframework/data/mongodb/log4j/package-info.java

@@ -0,0 +1,5 @@
+/**
+ * Infrastructure for to use MongoDB as a logging sink.
+ */
+package org.springframework.data.mongodb.log4j;
+

spring-data-mongodb-log4j/src/test/java/org/springframework/data/mongodb/log4j/MongoLog4jAppenderAuthenticationIntegrationTests.java

@@ -0,0 +1,114 @@
+/*
+ * Copyright 2016-2019 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.data.mongodb.log4j;
+
+import static org.hamcrest.Matchers.*;
+import static org.junit.Assert.*;
+
+import java.util.Calendar;
+import java.util.Collections;
+
+import org.apache.log4j.LogManager;
+import org.apache.log4j.Logger;
+import org.apache.log4j.MDC;
+import org.apache.log4j.PropertyConfigurator;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+
+import com.mongodb.BasicDBList;
+import com.mongodb.BasicDBObject;
+import com.mongodb.BasicDBObjectBuilder;
+import com.mongodb.DB;
+import com.mongodb.DBCursor;
+import com.mongodb.MongoClient;
+import com.mongodb.MongoCredential;
+import com.mongodb.ServerAddress;
+
+/**
+ * Integration tests for {@link MongoLog4jAppender} using authentication.
+ *
+ * @author Mark Paluch
+ */
+public class MongoLog4jAppenderAuthenticationIntegrationTests {
+
+	private final static String username = "admin";
+	private final static String password = "test";
+	private final static String authenticationDatabase = "logs";
+
+	MongoClient mongo;
+	DB db;
+	String collection;
+	ServerAddress serverLocation;
+
+	Logger log;
+
+	@Before
+	public void setUp() throws Exception {
+
+		serverLocation = new ServerAddress("localhost", 27017);
+
+		mongo = new MongoClient(serverLocation);
+		db = mongo.getDB("logs");
+
+		BasicDBList roles = new BasicDBList();
+		roles.add("dbOwner");
+		db.command(new BasicDBObjectBuilder().add("createUser", username).add("pwd", password).add("roles", roles).get());
+		mongo.close();
+
+		mongo = new MongoClient(serverLocation, Collections
+				.singletonList(MongoCredential.createCredential(username, authenticationDatabase, password.toCharArray())));
+		db = mongo.getDB("logs");
+
+		Calendar now = Calendar.getInstance();
+		collection = String.valueOf(now.get(Calendar.YEAR)) + String.format("%1$02d", now.get(Calendar.MONTH) + 1);
+
+		LogManager.resetConfiguration();
+		PropertyConfigurator.configure(getClass().getResource("/log4j-with-authentication.properties"));
+
+		log = Logger.getLogger(MongoLog4jAppenderIntegrationTests.class.getName());
+	}
+
+	@After
+	public void tearDown() {
+
+		if (db != null) {
+			db.getCollection(collection).remove(new BasicDBObject());
+			db.command(new BasicDBObject("dropUser", username));
+		}
+
+		LogManager.resetConfiguration();
+		PropertyConfigurator.configure(getClass().getResource("/log4j.properties"));
+	}
+
+	@Test
+	public void testLogging() {
+
+		log.debug("DEBUG message");
+		log.info("INFO message");
+		log.warn("WARN message");
+		log.error("ERROR message");
+
+		DBCursor msgs = db.getCollection(collection).find();
+		assertThat(msgs.count(), is(4));
+	}
+
+	@Test
+	public void testProperties() {
+		MDC.put("property", "one");
+		log.debug("DEBUG message");
+	}
+}

spring-data-mongodb-log4j/src/test/java/org/springframework/data/mongodb/log4j/MongoLog4jAppenderIntegrationTests.java

@@ -0,0 +1,87 @@
+/*
+ * Copyright 2011-2019 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.data.mongodb.log4j;
+
+import static org.hamcrest.Matchers.*;
+import static org.junit.Assert.*;
+
+import java.util.Calendar;
+
+import org.apache.log4j.LogManager;
+import org.apache.log4j.Logger;
+import org.apache.log4j.MDC;
+import org.apache.log4j.PropertyConfigurator;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+
+import com.mongodb.BasicDBObject;
+import com.mongodb.DB;
+import com.mongodb.DBCursor;
+import com.mongodb.MongoClient;
+import com.mongodb.ServerAddress;
+
+/**
+ * Integration tests for {@link MongoLog4jAppender}.
+ *
+ * @author Jon Brisbin
+ * @author Oliver Gierke
+ * @author Christoph Strobl
+ */
+public class MongoLog4jAppenderIntegrationTests {
+
+	MongoClient mongo;
+	DB db;
+	String collection;
+	ServerAddress serverLocation;
+	Logger log;
+
+	@Before
+	public void setUp() throws Exception {
+		serverLocation = new ServerAddress("localhost", 27017);
+
+		mongo = new MongoClient(serverLocation);
+		db = mongo.getDB("logs");
+
+		Calendar now = Calendar.getInstance();
+		collection = String.valueOf(now.get(Calendar.YEAR)) + String.format("%1$02d", now.get(Calendar.MONTH) + 1);
+
+		log = Logger.getLogger(MongoLog4jAppenderIntegrationTests.class.getName());
+	}
+
+	@After
+	public void tearDown() {
+		db.getCollection(collection).remove(new BasicDBObject());
+	}
+
+	@Test
+	public void testLogging() {
+
+		log.debug("DEBUG message");
+		log.info("INFO message");
+		log.warn("WARN message");
+		log.error("ERROR message");
+
+		DBCursor msgs = db.getCollection(collection).find();
+		assertThat(msgs.count(), is(4));
+	}
+
+	@Test
+	public void testProperties() {
+		MDC.put("property", "one");
+		log.debug("DEBUG message");
+	}
+}

spring-data-mongodb-log4j/src/test/java/org/springframework/data/mongodb/log4j/MongoLog4jAppenderUnitTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2017-2020 the original author or authors.
+ * Copyright 2013-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -13,15 +13,19 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.springframework.data.mongodb.repository;
+package org.springframework.data.mongodb.log4j;
 
-import org.springframework.beans.factory.annotation.Value;
+import org.junit.Test;
 
 /**
+ * Unit tests for {@link MongoLog4jAppender}.
+ * 
  * @author Oliver Gierke
  */
-public interface PersonExcerpt {
+public class MongoLog4jAppenderUnitTests {
 
-	@Value("#{target.firstname + ' ' + target.lastname}")
-	String getFullName();
+	@Test // DATAMONGO-641
+	public void closesWithoutMongoInstancePresent() {
+		new MongoLog4jAppender().close();
+	}
 }

spring-data-mongodb-log4j/src/test/resources/log4j-with-authentication.properties

@@ -0,0 +1,16 @@
+log4j.rootCategory=INFO, mongo
+
+log4j.appender.mongo=org.springframework.data.mongodb.log4j.MongoLog4jAppender
+log4j.appender.mongo.layout=org.apache.log4j.PatternLayout
+log4j.appender.mongo.layout.ConversionPattern=%d %p [%c] - <%m>%n
+log4j.appender.mongo.host = localhost
+log4j.appender.mongo.port = 27017
+log4j.appender.mongo.database = logs
+log4j.appender.mongo.username = admin
+log4j.appender.mongo.password = test
+log4j.appender.mongo.authenticationDatabase = logs
+log4j.appender.mongo.collectionPattern = %X{year}%X{month}
+log4j.appender.mongo.applicationId = my.application
+log4j.appender.mongo.warnOrHigherWriteConcern = FSYNC_SAFE
+
+log4j.category.org.springframework.data.mongodb=DEBUG

spring-data-mongodb-log4j/src/test/resources/log4j.properties

@@ -0,0 +1,13 @@
+log4j.rootCategory=INFO, mongo
+
+log4j.appender.mongo=org.springframework.data.mongodb.log4j.MongoLog4jAppender
+log4j.appender.mongo.layout=org.apache.log4j.PatternLayout
+log4j.appender.mongo.layout.ConversionPattern=%d %p [%c] - <%m>%n
+log4j.appender.mongo.host = localhost
+log4j.appender.mongo.port = 27017
+log4j.appender.mongo.database = logs
+log4j.appender.mongo.collectionPattern = %X{year}%X{month}
+log4j.appender.mongo.applicationId = my.application
+log4j.appender.mongo.warnOrHigherWriteConcern = FSYNC_SAFE
+
+log4j.category.org.springframework.data.mongodb=DEBUG

spring-data-mongodb-log4j/template.mf

@@ -0,0 +1,9 @@
+Bundle-SymbolicName: org.springframework.data.mongodb.log4j
+Bundle-Name: Spring Data Mongo DB Log4J Appender
+Bundle-Vendor: Pivotal Software, Inc.
+Bundle-ManifestVersion: 2
+Import-Package:
+ sun.reflect;version="0";resolution:=optional
+Import-Template:
+ com.mongodb.*;version="${mongo.osgi:[=.=.=,+1.0.0)}",
+ org.apache.log4j.*;version="${log4j:[=.=.=,+1.0.0)}"

spring-data-mongodb/pom.xml

@@ -11,16 +11,14 @@
 	<parent>
 		<groupId>org.springframework.data</groupId>
 		<artifactId>spring-data-mongodb-parent</artifactId>
-		<version>3.0.0.M2</version>
+		<version>1.10.24.BUILD-SNAPSHOT</version>
 		<relativePath>../pom.xml</relativePath>
 	</parent>
 
 	<properties>
 		<objenesis>1.3</objenesis>
-		<equalsverifier>1.7.8</equalsverifier>
-		<java-module-name>spring.data.mongodb</java-module-name>
+		<equalsverifier>1.5</equalsverifier>
 		<project.root>${basedir}/..</project.root>
-		<multithreadedtc>1.01</multithreadedtc>
 	</properties>
 
 	<dependencies>
@@ -81,80 +79,7 @@
 			<optional>true</optional>
 		</dependency>
 
-		<!-- reactive -->
-		<dependency>
-			<groupId>org.mongodb</groupId>
-			<artifactId>mongodb-driver-reactivestreams</artifactId>
-			<version>${mongo.reactivestreams}</version>
-			<optional>true</optional>
-		</dependency>
-
-		<dependency>
-			<groupId>org.mongodb</groupId>
-			<artifactId>mongodb-driver-async</artifactId>
-			<version>${mongo}</version>
-			<optional>true</optional>
-			<exclusions>
-				<exclusion>
-					<groupId>org.mongodb</groupId>
-					<artifactId>mongodb-driver-core</artifactId>
-				</exclusion>
-				<exclusion>
-					<groupId>org.mongodb</groupId>
-					<artifactId>bson</artifactId>
-				</exclusion>
-			</exclusions>
-		</dependency>
-
-		<dependency>
-			<groupId>io.projectreactor</groupId>
-			<artifactId>reactor-core</artifactId>
-			<optional>true</optional>
-		</dependency>
-
-		<dependency>
-			<groupId>io.projectreactor</groupId>
-			<artifactId>reactor-test</artifactId>
-			<optional>true</optional>
-		</dependency>
-
-		<dependency>
-			<groupId>io.reactivex</groupId>
-			<artifactId>rxjava</artifactId>
-			<version>${rxjava}</version>
-			<optional>true</optional>
-		</dependency>
-
-		<dependency>
-			<groupId>io.reactivex</groupId>
-			<artifactId>rxjava-reactive-streams</artifactId>
-			<version>${rxjava-reactive-streams}</version>
-			<optional>true</optional>
-		</dependency>
-
-		<dependency>
-			<groupId>io.reactivex.rxjava2</groupId>
-			<artifactId>rxjava</artifactId>
-			<version>${rxjava2}</version>
-			<optional>true</optional>
-		</dependency>
-
 		<!-- CDI -->
-		<!-- Dependency order required to build against CDI 1.0 and test with CDI 2.0 -->
-		<dependency>
-			<groupId>org.apache.geronimo.specs</groupId>
-			<artifactId>geronimo-jcdi_2.0_spec</artifactId>
-			<version>1.0.1</version>
-			<scope>test</scope>
-		</dependency>
-
-		<dependency>
-			<groupId>javax.interceptor</groupId>
-			<artifactId>javax.interceptor-api</artifactId>
-			<version>1.2.1</version>
-			<scope>test</scope>
-		</dependency>
-
 		<dependency>
 			<groupId>javax.enterprise</groupId>
 			<artifactId>cdi-api</artifactId>
@@ -164,19 +89,26 @@
 		</dependency>
 
 		<dependency>
-			<groupId>javax.annotation</groupId>
-			<artifactId>javax.annotation-api</artifactId>
-			<version>${javax-annotation-api}</version>
+			<groupId>javax.el</groupId>
+			<artifactId>el-api</artifactId>
+			<version>${cdi}</version>
 			<scope>test</scope>
 		</dependency>
 
 		<dependency>
-			<groupId>org.apache.openwebbeans</groupId>
-			<artifactId>openwebbeans-se</artifactId>
+			<groupId>org.apache.openwebbeans.test</groupId>
+			<artifactId>cditest-owb</artifactId>
 			<version>${webbeans}</version>
 			<scope>test</scope>
 		</dependency>
 
+		<dependency>
+			<groupId>javax.servlet</groupId>
+			<artifactId>servlet-api</artifactId>
+			<version>2.5</version>
+			<scope>test</scope>
+		</dependency>
+
 		<!-- JSR 303 Validation -->
 		<dependency>
 			<groupId>javax.validation</groupId>
@@ -195,7 +127,7 @@
 		<dependency>
 			<groupId>org.hibernate</groupId>
 			<artifactId>hibernate-validator</artifactId>
-			<version>5.2.4.Final</version>
+			<version>4.2.0.Final</version>
 			<scope>test</scope>
 		</dependency>
 
@@ -239,63 +171,9 @@
 			<scope>test</scope>
 		</dependency>
 
-		<dependency>
-			<groupId>de.schauderhaft.degraph</groupId>
-			<artifactId>degraph-check</artifactId>
-			<version>0.1.4</version>
-			<scope>test</scope>
-		</dependency>
-
-		<dependency>
-			<groupId>edu.umd.cs.mtc</groupId>
-			<artifactId>multithreadedtc</artifactId>
-			<version>${multithreadedtc}</version>
-			<scope>test</scope>
-		</dependency>
-
-		<dependency>
-			<groupId>javax.transaction</groupId>
-			<artifactId>jta</artifactId>
-			<version>1.1</version>
-			<scope>test</scope>
-		</dependency>
-
-		<!-- Kotlin extension -->
-		<dependency>
-			<groupId>org.jetbrains.kotlin</groupId>
-			<artifactId>kotlin-stdlib</artifactId>
-			<optional>true</optional>
-		</dependency>
-
-		<dependency>
-			<groupId>org.jetbrains.kotlin</groupId>
-			<artifactId>kotlin-reflect</artifactId>
-			<optional>true</optional>
-		</dependency>
-
-		<dependency>
-			<groupId>org.jetbrains.kotlinx</groupId>
-			<artifactId>kotlinx-coroutines-core</artifactId>
-			<optional>true</optional>
-		</dependency>
-
-		<dependency>
-			<groupId>org.jetbrains.kotlinx</groupId>
-			<artifactId>kotlinx-coroutines-reactor</artifactId>
-			<optional>true</optional>
-		</dependency>
-
-		<dependency>
-			<groupId>io.mockk</groupId>
-			<artifactId>mockk</artifactId>
-			<version>${mockk}</version>
-			<scope>test</scope>
-		</dependency>
-
 	</dependencies>
 
 	<build>
-
 		<plugins>
 
 			<plugin>
@@ -326,19 +204,17 @@
 			<plugin>
 				<groupId>org.apache.maven.plugins</groupId>
 				<artifactId>maven-surefire-plugin</artifactId>
+				<version>2.12</version>
 				<configuration>
-					<useSystemClassLoader>false</useSystemClassLoader>
 					<useFile>false</useFile>
 					<includes>
 						<include>**/*Tests.java</include>
 					</includes>
 					<excludes>
 						<exclude>**/PerformanceTests.java</exclude>
-						<exclude>**/ReactivePerformanceTests.java</exclude>
 					</excludes>
 					<systemPropertyVariables>
 						<java.util.logging.config.file>src/test/resources/logging.properties</java.util.logging.config.file>
-						<reactor.trace.cancel>true</reactor.trace.cancel>
 					</systemPropertyVariables>
 					<properties>
 						<property>
@@ -348,8 +224,6 @@
 					</properties>
 				</configuration>
 			</plugin>
-
 		</plugins>
-
 	</build>
 </project>

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/BulkOperationException.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2015-2020 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -25,7 +25,7 @@ import com.mongodb.BulkWriteResult;
 
 /**
  * Is thrown when errors occur during bulk operations.
- *
+ * 
  * @author Tobias Trelle
  * @author Oliver Gierke
  * @since 1.9
@@ -39,7 +39,7 @@ public class BulkOperationException extends DataAccessException {
 
 	/**
 	 * Creates a new {@link BulkOperationException} with the given message and source {@link BulkWriteException}.
-	 *
+	 * 
 	 * @param message must not be {@literal null}.
 	 * @param source must not be {@literal null}.
 	 */

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/CannotGetMongoDbConnectionException.java

@@ -0,0 +1,66 @@
+/*
+ * Copyright 2010-2019 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.data.mongodb;
+
+import org.springframework.dao.DataAccessResourceFailureException;
+import org.springframework.data.authentication.UserCredentials;
+
+/**
+ * Exception being thrown in case we cannot connect to a MongoDB instance.
+ * 
+ * @author Oliver Gierke
+ */
+public class CannotGetMongoDbConnectionException extends DataAccessResourceFailureException {
+
+	private final UserCredentials credentials;
+	private final String database;
+
+	private static final long serialVersionUID = 1172099106475265589L;
+
+	public CannotGetMongoDbConnectionException(String msg, Throwable cause) {
+		super(msg, cause);
+		this.database = null;
+		this.credentials = UserCredentials.NO_CREDENTIALS;
+	}
+
+	public CannotGetMongoDbConnectionException(String msg) {
+		this(msg, null, UserCredentials.NO_CREDENTIALS);
+	}
+
+	public CannotGetMongoDbConnectionException(String msg, String database, UserCredentials credentials) {
+		super(msg);
+		this.database = database;
+		this.credentials = credentials;
+	}
+
+	/**
+	 * Returns the {@link UserCredentials} that were used when trying to connect to the MongoDB instance.
+	 * 
+	 * @return
+	 */
+	public UserCredentials getCredentials() {
+		return this.credentials;
+	}
+
+	/**
+	 * Returns the name of the database trying to be accessed.
+	 * 
+	 * @return
+	 */
+	public String getDatabase() {
+		return database;
+	}
+}

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/ClientSessionException.java

@@ -1,48 +0,0 @@
-/*
- * Copyright 2018-2020 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.springframework.data.mongodb;
-
-import org.springframework.dao.NonTransientDataAccessException;
-import org.springframework.lang.Nullable;
-
-/**
- * {@link NonTransientDataAccessException} specific to MongoDB {@link com.mongodb.session.ClientSession} related data
- * access failures such as reading data using an already closed session.
- *
- * @author Christoph Strobl
- * @since 2.1
- */
-public class ClientSessionException extends NonTransientDataAccessException {
-
-	/**
-	 * Constructor for {@link ClientSessionException}.
-	 *
-	 * @param msg the detail message. Must not be {@literal null}.
-	 */
-	public ClientSessionException(String msg) {
-		super(msg);
-	}
-
-	/**
-	 * Constructor for {@link ClientSessionException}.
-	 *
-	 * @param msg the detail message. Can be {@literal null}.
-	 * @param cause the root cause. Can be {@literal null}.
-	 */
-	public ClientSessionException(@Nullable String msg, @Nullable Throwable cause) {
-		super(msg, cause);
-	}
-}

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/CodecRegistryProvider.java

@@ -1,74 +0,0 @@
-/*
- * Copyright 2017-2020 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.springframework.data.mongodb;
-
-import java.util.Optional;
-
-import org.bson.codecs.Codec;
-import org.bson.codecs.configuration.CodecConfigurationException;
-import org.bson.codecs.configuration.CodecRegistry;
-import org.springframework.util.Assert;
-
-/**
- * Provider interface to obtain {@link CodecRegistry} from the underlying MongoDB Java driver.
- *
- * @author Christoph Strobl
- * @author Mark Paluch
- * @since 2.1
- */
-@FunctionalInterface
-public interface CodecRegistryProvider {
-
-	/**
-	 * Get the underlying {@link CodecRegistry} used by the MongoDB Java driver.
-	 *
-	 * @return never {@literal null}.
-	 * @throws IllegalStateException if {@link CodecRegistry} cannot be obtained.
-	 */
-	CodecRegistry getCodecRegistry();
-
-	/**
-	 * Checks if a {@link Codec} is registered for a given type.
-	 *
-	 * @param type must not be {@literal null}.
-	 * @return true if {@link #getCodecRegistry()} holds a {@link Codec} for given type.
-	 * @throws IllegalStateException if {@link CodecRegistry} cannot be obtained.
-	 */
-	default boolean hasCodecFor(Class<?> type) {
-		return getCodecFor(type).isPresent();
-	}
-
-	/**
-	 * Get the {@link Codec} registered for the given {@literal type} or an {@link Optional#empty() empty Optional}
-	 * instead.
-	 *
-	 * @param type must not be {@literal null}.
-	 * @param <T>
-	 * @return never {@literal null}.
-	 * @throws IllegalArgumentException if {@literal type} is {@literal null}.
-	 */
-	default <T> Optional<Codec<T>> getCodecFor(Class<T> type) {
-
-		Assert.notNull(type, "Type must not be null!");
-
-		try {
-			return Optional.of(getCodecRegistry().get(type));
-		} catch (CodecConfigurationException e) {
-			// ignore
-		}
-		return Optional.empty();
-	}
-}

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/InvalidMongoDbApiUsageException.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2020 the original author or authors.
+ * Copyright 2010-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/LazyLoadingException.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/MongoCollectionUtils.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2020 the original author or authors.
+ * Copyright 2011-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -23,7 +23,7 @@ import org.springframework.util.StringUtils;
  * <p/>
  * <p/>
  * Mainly intended for internal use within the framework.
- *
+ * 
  * @author Thomas Risberg
  * @since 1.0
  */
@@ -38,7 +38,7 @@ public abstract class MongoCollectionUtils {
 
 	/**
 	 * Obtains the collection name to use for the provided class
-	 *
+	 * 
 	 * @param entityClass The class to determine the preferred collection name for
 	 * @return The preferred collection name
 	 */

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/MongoDatabaseUtils.java

@@ -1,240 +0,0 @@
-/*
- * Copyright 2018-2020 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.springframework.data.mongodb;
-
-import org.springframework.lang.Nullable;
-import org.springframework.transaction.support.ResourceHolderSynchronization;
-import org.springframework.transaction.support.TransactionSynchronization;
-import org.springframework.transaction.support.TransactionSynchronizationManager;
-import org.springframework.util.Assert;
-import org.springframework.util.StringUtils;
-
-import com.mongodb.ClientSessionOptions;
-import com.mongodb.client.ClientSession;
-import com.mongodb.client.MongoDatabase;
-
-/**
- * Helper class for managing a {@link MongoDatabase} instances via {@link MongoDbFactory}. Used for obtaining
- * {@link ClientSession session bound} resources, such as {@link MongoDatabase} and
- * {@link com.mongodb.client.MongoCollection} suitable for transactional usage.
- * <p />
- * <strong>Note:</strong> Intended for internal usage only.
- *
- * @author Christoph Strobl
- * @author Mark Paluch
- * @currentRead Shadow's Edge - Brent Weeks
- * @since 2.1
- */
-public class MongoDatabaseUtils {
-
-	/**
-	 * Obtain the default {@link MongoDatabase database} form the given {@link MongoDbFactory factory} using
-	 * {@link SessionSynchronization#ON_ACTUAL_TRANSACTION native session synchronization}.
-	 * <p />
-	 * Registers a {@link MongoSessionSynchronization MongoDB specific transaction synchronization} within the current
-	 * {@link Thread} if {@link TransactionSynchronizationManager#isSynchronizationActive() synchronization is active}.
-	 *
-	 * @param factory the {@link MongoDbFactory} to get the {@link MongoDatabase} from.
-	 * @return the {@link MongoDatabase} that is potentially associated with a transactional {@link ClientSession}.
-	 */
-	public static MongoDatabase getDatabase(MongoDbFactory factory) {
-		return doGetMongoDatabase(null, factory, SessionSynchronization.ON_ACTUAL_TRANSACTION);
-	}
-
-	/**
-	 * Obtain the default {@link MongoDatabase database} form the given {@link MongoDbFactory factory}.
-	 * <p />
-	 * Registers a {@link MongoSessionSynchronization MongoDB specific transaction synchronization} within the current
-	 * {@link Thread} if {@link TransactionSynchronizationManager#isSynchronizationActive() synchronization is active}.
-	 *
-	 * @param factory the {@link MongoDbFactory} to get the {@link MongoDatabase} from.
-	 * @param sessionSynchronization the synchronization to use. Must not be {@literal null}.
-	 * @return the {@link MongoDatabase} that is potentially associated with a transactional {@link ClientSession}.
-	 */
-	public static MongoDatabase getDatabase(MongoDbFactory factory, SessionSynchronization sessionSynchronization) {
-		return doGetMongoDatabase(null, factory, sessionSynchronization);
-	}
-
-	/**
-	 * Obtain the {@link MongoDatabase database} with given name form the given {@link MongoDbFactory factory} using
-	 * {@link SessionSynchronization#ON_ACTUAL_TRANSACTION native session synchronization}.
-	 * <p />
-	 * Registers a {@link MongoSessionSynchronization MongoDB specific transaction synchronization} within the current
-	 * {@link Thread} if {@link TransactionSynchronizationManager#isSynchronizationActive() synchronization is active}.
-	 *
-	 * @param dbName the name of the {@link MongoDatabase} to get.
-	 * @param factory the {@link MongoDbFactory} to get the {@link MongoDatabase} from.
-	 * @return the {@link MongoDatabase} that is potentially associated with a transactional {@link ClientSession}.
-	 */
-	public static MongoDatabase getDatabase(String dbName, MongoDbFactory factory) {
-		return doGetMongoDatabase(dbName, factory, SessionSynchronization.ON_ACTUAL_TRANSACTION);
-	}
-
-	/**
-	 * Obtain the {@link MongoDatabase database} with given name form the given {@link MongoDbFactory factory}.
-	 * <p />
-	 * Registers a {@link MongoSessionSynchronization MongoDB specific transaction synchronization} within the current
-	 * {@link Thread} if {@link TransactionSynchronizationManager#isSynchronizationActive() synchronization is active}.
-	 * 
-	 * @param dbName the name of the {@link MongoDatabase} to get.
-	 * @param factory the {@link MongoDbFactory} to get the {@link MongoDatabase} from.
-	 * @param sessionSynchronization the synchronization to use. Must not be {@literal null}.
-	 * @return the {@link MongoDatabase} that is potentially associated with a transactional {@link ClientSession}.
-	 */
-	public static MongoDatabase getDatabase(String dbName, MongoDbFactory factory,
-			SessionSynchronization sessionSynchronization) {
-		return doGetMongoDatabase(dbName, factory, sessionSynchronization);
-	}
-
-	private static MongoDatabase doGetMongoDatabase(@Nullable String dbName, MongoDbFactory factory,
-			SessionSynchronization sessionSynchronization) {
-
-		Assert.notNull(factory, "Factory must not be null!");
-
-		if (!TransactionSynchronizationManager.isSynchronizationActive()) {
-			return StringUtils.hasText(dbName) ? factory.getDb(dbName) : factory.getDb();
-		}
-
-		ClientSession session = doGetSession(factory, sessionSynchronization);
-
-		if (session == null) {
-			return StringUtils.hasText(dbName) ? factory.getDb(dbName) : factory.getDb();
-		}
-
-		MongoDbFactory factoryToUse = factory.withSession(session);
-		return StringUtils.hasText(dbName) ? factoryToUse.getDb(dbName) : factoryToUse.getDb();
-	}
-
-	/**
-	 * Check if the {@link MongoDbFactory} is actually bound to a {@link ClientSession} that has an active transaction, or
-	 * if a {@link TransactionSynchronization} has been registered for the {@link MongoDbFactory resource} and if the
-	 * associated {@link ClientSession} has an {@link ClientSession#hasActiveTransaction() active transaction}.
-	 *
-	 * @param dbFactory the resource to check transactions for. Must not be {@literal null}.
-	 * @return {@literal true} if the factory has an ongoing transaction.
-	 * @since 2.1.3
-	 */
-	public static boolean isTransactionActive(MongoDbFactory dbFactory) {
-
-		if (dbFactory.isTransactionActive()) {
-			return true;
-		}
-
-		MongoResourceHolder resourceHolder = (MongoResourceHolder) TransactionSynchronizationManager.getResource(dbFactory);
-		return resourceHolder != null && resourceHolder.hasActiveTransaction();
-	}
-
-	@Nullable
-	private static ClientSession doGetSession(MongoDbFactory dbFactory, SessionSynchronization sessionSynchronization) {
-
-		MongoResourceHolder resourceHolder = (MongoResourceHolder) TransactionSynchronizationManager.getResource(dbFactory);
-
-		// check for native MongoDB transaction
-		if (resourceHolder != null && (resourceHolder.hasSession() || resourceHolder.isSynchronizedWithTransaction())) {
-
-			if (!resourceHolder.hasSession()) {
-				resourceHolder.setSession(createClientSession(dbFactory));
-			}
-
-			return resourceHolder.getSession();
-		}
-
-		if (SessionSynchronization.ON_ACTUAL_TRANSACTION.equals(sessionSynchronization)) {
-			return null;
-		}
-
-		// init a non native MongoDB transaction by registering a MongoSessionSynchronization
-
-		resourceHolder = new MongoResourceHolder(createClientSession(dbFactory), dbFactory);
-		resourceHolder.getRequiredSession().startTransaction();
-
-		TransactionSynchronizationManager
-				.registerSynchronization(new MongoSessionSynchronization(resourceHolder, dbFactory));
-		resourceHolder.setSynchronizedWithTransaction(true);
-		TransactionSynchronizationManager.bindResource(dbFactory, resourceHolder);
-
-		return resourceHolder.getSession();
-	}
-
-	private static ClientSession createClientSession(MongoDbFactory dbFactory) {
-		return dbFactory.getSession(ClientSessionOptions.builder().causallyConsistent(true).build());
-	}
-
-	/**
-	 * MongoDB specific {@link ResourceHolderSynchronization} for resource cleanup at the end of a transaction when
-	 * participating in a non-native MongoDB transaction, such as a Jta or JDBC transaction.
-	 *
-	 * @author Christoph Strobl
-	 * @since 2.1
-	 */
-	private static class MongoSessionSynchronization extends ResourceHolderSynchronization<MongoResourceHolder, Object> {
-
-		private final MongoResourceHolder resourceHolder;
-
-		MongoSessionSynchronization(MongoResourceHolder resourceHolder, MongoDbFactory dbFactory) {
-
-			super(resourceHolder, dbFactory);
-			this.resourceHolder = resourceHolder;
-		}
-
-		/*
-		 * (non-Javadoc)
-		 * @see org.springframework.transaction.support.ResourceHolderSynchronization#shouldReleaseBeforeCompletion()
-		 */
-		@Override
-		protected boolean shouldReleaseBeforeCompletion() {
-			return false;
-		}
-
-		/*
-		 * (non-Javadoc)
-		 * @see org.springframework.transaction.support.ResourceHolderSynchronization#processResourceAfterCommit(java.lang.Object)
-		 */
-		@Override
-		protected void processResourceAfterCommit(MongoResourceHolder resourceHolder) {
-
-			if (resourceHolder.hasActiveTransaction()) {
-				resourceHolder.getRequiredSession().commitTransaction();
-			}
-		}
-
-		/*
-		 * (non-Javadoc)
-		 * @see org.springframework.transaction.support.ResourceHolderSynchronization#afterCompletion(int)
-		 */
-		@Override
-		public void afterCompletion(int status) {
-
-			if (status == TransactionSynchronization.STATUS_ROLLED_BACK && this.resourceHolder.hasActiveTransaction()) {
-				resourceHolder.getRequiredSession().abortTransaction();
-			}
-
-			super.afterCompletion(status);
-		}
-
-		/*
-		 * (non-Javadoc)
-		 * @see org.springframework.transaction.support.ResourceHolderSynchronization#releaseResource(java.lang.Object, java.lang.Object)
-		 */
-		@Override
-		protected void releaseResource(MongoResourceHolder resourceHolder, Object resourceKey) {
-
-			if (resourceHolder.hasActiveSession()) {
-				resourceHolder.getRequiredSession().close();
-			}
-		}
-	}
-}

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/MongoDbFactory.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2020 the original author or authors.
+ * Copyright 2011-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,32 +15,27 @@
  */
 package org.springframework.data.mongodb;
 
-import org.bson.codecs.configuration.CodecRegistry;
 import org.springframework.dao.DataAccessException;
 import org.springframework.dao.support.PersistenceExceptionTranslator;
 import org.springframework.data.mongodb.core.MongoExceptionTranslator;
 
-import com.mongodb.ClientSessionOptions;
 import com.mongodb.DB;
-import com.mongodb.client.ClientSession;
-import com.mongodb.client.MongoDatabase;
 
 /**
- * Interface for factories creating {@link MongoDatabase} instances.
+ * Interface for factories creating {@link DB} instances.
  *
  * @author Mark Pollack
  * @author Thomas Darimont
- * @author Christoph Strobl
  */
-public interface MongoDbFactory extends CodecRegistryProvider, MongoSessionProvider {
+public interface MongoDbFactory {
 
 	/**
-	 * Creates a default {@link MongoDatabase} instance.
+	 * Creates a default {@link DB} instance.
 	 *
 	 * @return
 	 * @throws DataAccessException
 	 */
-	MongoDatabase getDb() throws DataAccessException;
+	DB getDb() throws DataAccessException;
 
 	/**
 	 * Creates a {@link DB} instance to access the database with the given name.
@@ -49,7 +44,7 @@ public interface MongoDbFactory extends CodecRegistryProvider, MongoSessionProvi
 	 * @return
 	 * @throws DataAccessException
 	 */
-	MongoDatabase getDb(String dbName) throws DataAccessException;
+	DB getDb(String dbName) throws DataAccessException;
 
 	/**
 	 * Exposes a shared {@link MongoExceptionTranslator}.
@@ -57,66 +52,4 @@ public interface MongoDbFactory extends CodecRegistryProvider, MongoSessionProvi
 	 * @return will never be {@literal null}.
 	 */
 	PersistenceExceptionTranslator getExceptionTranslator();
-
-	/**
-	 * Get the legacy database entry point. Please consider {@link #getDb()} instead.
-	 *
-	 * @return
-	 * @deprecated since 2.1, use {@link #getDb()}. This method will be removed with a future version as it works only
-	 *             with the legacy MongoDB driver.
-	 */
-	@Deprecated
-	DB getLegacyDb();
-
-	/**
-	 * Get the underlying {@link CodecRegistry} used by the MongoDB Java driver.
-	 *
-	 * @return never {@literal null}.
-	 */
-	@Override
-	default CodecRegistry getCodecRegistry() {
-		return getDb().getCodecRegistry();
-	}
-
-	/**
-	 * Obtain a {@link ClientSession} for given ClientSessionOptions.
-	 *
-	 * @param options must not be {@literal null}.
-	 * @return never {@literal null}.
-	 * @since 2.1
-	 */
-	ClientSession getSession(ClientSessionOptions options);
-
-	/**
-	 * Obtain a {@link ClientSession} bound instance of {@link MongoDbFactory} returning {@link MongoDatabase} instances
-	 * that are aware and bound to a new session with given {@link ClientSessionOptions options}.
-	 *
-	 * @param options must not be {@literal null}.
-	 * @return never {@literal null}.
-	 * @since 2.1
-	 */
-	default MongoDbFactory withSession(ClientSessionOptions options) {
-		return withSession(getSession(options));
-	}
-
-	/**
-	 * Obtain a {@link ClientSession} bound instance of {@link MongoDbFactory} returning {@link MongoDatabase} instances
-	 * that are aware and bound to the given session.
-	 *
-	 * @param session must not be {@literal null}.
-	 * @return never {@literal null}.
-	 * @since 2.1
-	 */
-	MongoDbFactory withSession(ClientSession session);
-
-	/**
-	 * Returns if the given {@link MongoDbFactory} is bound to a {@link ClientSession} that has an
-	 * {@link ClientSession#hasActiveTransaction() active transaction}.
-	 *
-	 * @return {@literal true} if there's an active transaction, {@literal false} otherwise.
-	 * @since 2.1.3
-	 */
-	default boolean isTransactionActive() {
-		return false;
-	}
 }

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/MongoResourceHolder.java

@@ -1,153 +0,0 @@
-/*
- * Copyright 2018-2020 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.springframework.data.mongodb;
-
-import org.springframework.lang.Nullable;
-import org.springframework.transaction.TransactionDefinition;
-import org.springframework.transaction.support.ResourceHolderSupport;
-
-import com.mongodb.client.ClientSession;
-
-/**
- * MongoDB specific {@link ResourceHolderSupport resource holder}, wrapping a {@link ClientSession}.
- * {@link MongoTransactionManager} binds instances of this class to the thread.
- * <p />
- * <strong>Note:</strong> Intended for internal usage only.
- *
- * @author Christoph Strobl
- * @author Mark Paluch
- * @since 2.1
- * @see MongoTransactionManager
- * @see org.springframework.data.mongodb.core.MongoTemplate
- */
-class MongoResourceHolder extends ResourceHolderSupport {
-
-	private @Nullable ClientSession session;
-	private MongoDbFactory dbFactory;
-
-	/**
-	 * Create a new {@link MongoResourceHolder} for a given {@link ClientSession session}.
-	 *
-	 * @param session the associated {@link ClientSession}. Can be {@literal null}.
-	 * @param dbFactory the associated {@link MongoDbFactory}. must not be {@literal null}.
-	 */
-	MongoResourceHolder(@Nullable ClientSession session, MongoDbFactory dbFactory) {
-
-		this.session = session;
-		this.dbFactory = dbFactory;
-	}
-
-	/**
-	 * @return the associated {@link ClientSession}. Can be {@literal null}.
-	 */
-	@Nullable
-	ClientSession getSession() {
-		return session;
-	}
-
-	/**
-	 * @return the required associated {@link ClientSession}.
-	 * @throws IllegalStateException if no {@link ClientSession} is associated with this {@link MongoResourceHolder}.
-	 * @since 2.1.3
-	 */
-	ClientSession getRequiredSession() {
-
-		ClientSession session = getSession();
-
-		if (session == null) {
-			throw new IllegalStateException("No session available!");
-		}
-
-		return session;
-	}
-
-	/**
-	 * @return the associated {@link MongoDbFactory}.
-	 */
-	public MongoDbFactory getDbFactory() {
-		return dbFactory;
-	}
-
-	/**
-	 * Set the {@link ClientSession} to guard.
-	 *
-	 * @param session can be {@literal null}.
-	 */
-	public void setSession(@Nullable ClientSession session) {
-		this.session = session;
-	}
-
-	/**
-	 * Only set the timeout if it does not match the {@link TransactionDefinition#TIMEOUT_DEFAULT default timeout}.
-	 *
-	 * @param seconds
-	 */
-	void setTimeoutIfNotDefaulted(int seconds) {
-
-		if (seconds != TransactionDefinition.TIMEOUT_DEFAULT) {
-			setTimeoutInSeconds(seconds);
-		}
-	}
-
-	/**
-	 * @return {@literal true} if session is not {@literal null}.
-	 */
-	boolean hasSession() {
-		return session != null;
-	}
-
-	/**
-	 * @return {@literal true} if the session is active and has not been closed.
-	 */
-	boolean hasActiveSession() {
-
-		if (!hasSession()) {
-			return false;
-		}
-
-		return hasServerSession() && !getRequiredSession().getServerSession().isClosed();
-	}
-
-	/**
-	 * @return {@literal true} if the session has an active transaction.
-	 * @since 2.1.3
-	 * @see #hasActiveSession()
-	 */
-	boolean hasActiveTransaction() {
-
-		if (!hasActiveSession()) {
-			return false;
-		}
-
-		return getRequiredSession().hasActiveTransaction();
-	}
-
-	/**
-	 * @return {@literal true} if the {@link ClientSession} has a {@link com.mongodb.session.ServerSession} associated
-	 *         that is accessible via {@link ClientSession#getServerSession()}.
-	 */
-	boolean hasServerSession() {
-
-		try {
-			return getRequiredSession().getServerSession() != null;
-		} catch (IllegalStateException serverSessionClosed) {
-			// ignore
-		}
-
-		return false;
-	}
-
-}

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/MongoSessionProvider.java

@@ -1,41 +0,0 @@
-/*
- * Copyright 2018-2020 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.springframework.data.mongodb;
-
-import com.mongodb.ClientSessionOptions;
-import com.mongodb.client.ClientSession;
-
-/**
- * A simple interface for obtaining a {@link ClientSession} to be consumed by
- * {@link org.springframework.data.mongodb.core.MongoOperations} and MongoDB native operations that support causal
- * consistency and transactions.
- *
- * @author Christoph Strobl
- * @currentRead Shadow's Edge - Brent Weeks
- * @since 2.1
- */
-@FunctionalInterface
-public interface MongoSessionProvider {
-
-	/**
-	 * Obtain a {@link ClientSession} with with given options.
-	 *
-	 * @param options must not be {@literal null}.
-	 * @return never {@literal null}.
-	 * @throws org.springframework.dao.DataAccessException
-	 */
-	ClientSession getSession(ClientSessionOptions options);
-}

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/MongoTransactionException.java

@@ -1,47 +0,0 @@
-/*
- * Copyright 2018-2020 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.springframework.data.mongodb;
-
-import org.springframework.lang.Nullable;
-
-/**
- * A specific {@link ClientSessionException} related to issues with a transaction such as aborted or non existing
- * transactions.
- *
- * @author Christoph Strobl
- * @since 2.1
- */
-public class MongoTransactionException extends ClientSessionException {
-
-	/**
-	 * Constructor for {@link MongoTransactionException}.
-	 *
-	 * @param msg the detail message. Must not be {@literal null}.
-	 */
-	public MongoTransactionException(String msg) {
-		super(msg);
-	}
-
-	/**
-	 * Constructor for {@link ClientSessionException}.
-	 *
-	 * @param msg the detail message. Can be {@literal null}.
-	 * @param cause the root cause. Can be {@literal null}.
-	 */
-	public MongoTransactionException(@Nullable String msg, @Nullable Throwable cause) {
-		super(msg, cause);
-	}
-}

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/MongoTransactionManager.java

@@ -1,526 +0,0 @@
-/*
- * Copyright 2018-2020 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.springframework.data.mongodb;
-
-import org.springframework.beans.factory.InitializingBean;
-import org.springframework.lang.Nullable;
-import org.springframework.transaction.TransactionDefinition;
-import org.springframework.transaction.TransactionException;
-import org.springframework.transaction.TransactionSystemException;
-import org.springframework.transaction.support.AbstractPlatformTransactionManager;
-import org.springframework.transaction.support.DefaultTransactionStatus;
-import org.springframework.transaction.support.ResourceTransactionManager;
-import org.springframework.transaction.support.SmartTransactionObject;
-import org.springframework.transaction.support.TransactionSynchronizationManager;
-import org.springframework.transaction.support.TransactionSynchronizationUtils;
-import org.springframework.util.Assert;
-import org.springframework.util.ClassUtils;
-
-import com.mongodb.ClientSessionOptions;
-import com.mongodb.MongoException;
-import com.mongodb.TransactionOptions;
-import com.mongodb.client.ClientSession;
-
-/**
- * A {@link org.springframework.transaction.PlatformTransactionManager} implementation that manages
- * {@link ClientSession} based transactions for a single {@link MongoDbFactory}.
- * <p />
- * Binds a {@link ClientSession} from the specified {@link MongoDbFactory} to the thread.
- * <p />
- * {@link TransactionDefinition#isReadOnly() Readonly} transactions operate on a {@link ClientSession} and enable causal
- * consistency, and also {@link ClientSession#startTransaction() start}, {@link ClientSession#commitTransaction()
- * commit} or {@link ClientSession#abortTransaction() abort} a transaction.
- * <p />
- * Application code is required to retrieve the {@link com.mongodb.client.MongoDatabase} via
- * {@link MongoDatabaseUtils#getDatabase(MongoDbFactory)} instead of a standard {@link MongoDbFactory#getDb()} call.
- * Spring classes such as {@link org.springframework.data.mongodb.core.MongoTemplate} use this strategy implicitly.
- * <p />
- * By default failure of a {@literal commit} operation raises a {@link TransactionSystemException}. One may override
- * {@link #doCommit(MongoTransactionObject)} to implement the
- * <a href="https://docs.mongodb.com/manual/core/transactions/#retry-commit-operation">Retry Commit Operation</a>
- * behavior as outlined in the MongoDB reference manual.
- *
- * @author Christoph Strobl
- * @author Mark Paluch
- * @currentRead Shadow's Edge - Brent Weeks
- * @since 2.1
- * @see <a href="https://www.mongodb.com/transactions">MongoDB Transaction Documentation</a>
- * @see MongoDatabaseUtils#getDatabase(MongoDbFactory, SessionSynchronization)
- */
-public class MongoTransactionManager extends AbstractPlatformTransactionManager
-		implements ResourceTransactionManager, InitializingBean {
-
-	private @Nullable MongoDbFactory dbFactory;
-	private @Nullable TransactionOptions options;
-
-	/**
-	 * Create a new {@link MongoTransactionManager} for bean-style usage.
-	 * <p />
-	 * <strong>Note:</strong>The {@link MongoDbFactory db factory} has to be {@link #setDbFactory(MongoDbFactory) set}
-	 * before using the instance. Use this constructor to prepare a {@link MongoTransactionManager} via a
-	 * {@link org.springframework.beans.factory.BeanFactory}.
-	 * <p />
-	 * Optionally it is possible to set default {@link TransactionOptions transaction options} defining
-	 * {@link com.mongodb.ReadConcern} and {@link com.mongodb.WriteConcern}.
-	 *
-	 * @see #setDbFactory(MongoDbFactory)
-	 * @see #setTransactionSynchronization(int)
-	 */
-	public MongoTransactionManager() {}
-
-	/**
-	 * Create a new {@link MongoTransactionManager} obtaining sessions from the given {@link MongoDbFactory}.
-	 *
-	 * @param dbFactory must not be {@literal null}.
-	 */
-	public MongoTransactionManager(MongoDbFactory dbFactory) {
-		this(dbFactory, null);
-	}
-
-	/**
-	 * Create a new {@link MongoTransactionManager} obtaining sessions from the given {@link MongoDbFactory} applying the
-	 * given {@link TransactionOptions options}, if present, when starting a new transaction.
-	 *
-	 * @param dbFactory must not be {@literal null}.
-	 * @param options can be {@literal null}.
-	 */
-	public MongoTransactionManager(MongoDbFactory dbFactory, @Nullable TransactionOptions options) {
-
-		Assert.notNull(dbFactory, "DbFactory must not be null!");
-
-		this.dbFactory = dbFactory;
-		this.options = options;
-	}
-
-	/*
-	 * (non-Javadoc)
-	 * org.springframework.transaction.support.AbstractPlatformTransactionManager#doGetTransaction()
-	 */
-	@Override
-	protected Object doGetTransaction() throws TransactionException {
-
-		MongoResourceHolder resourceHolder = (MongoResourceHolder) TransactionSynchronizationManager
-				.getResource(getRequiredDbFactory());
-		return new MongoTransactionObject(resourceHolder);
-	}
-
-	/*
-	 * (non-Javadoc)
-	 * org.springframework.transaction.support.AbstractPlatformTransactionManager#isExistingTransaction(java.lang.Object)
-	 */
-	@Override
-	protected boolean isExistingTransaction(Object transaction) throws TransactionException {
-		return extractMongoTransaction(transaction).hasResourceHolder();
-	}
-
-	/*
-	 * (non-Javadoc)
-	 * org.springframework.transaction.support.AbstractPlatformTransactionManager#doBegin(java.lang.Object, org.springframework.transaction.TransactionDefinition)
-	 */
-	@Override
-	protected void doBegin(Object transaction, TransactionDefinition definition) throws TransactionException {
-
-		MongoTransactionObject mongoTransactionObject = extractMongoTransaction(transaction);
-
-		MongoResourceHolder resourceHolder = newResourceHolder(definition,
-				ClientSessionOptions.builder().causallyConsistent(true).build());
-		mongoTransactionObject.setResourceHolder(resourceHolder);
-
-		if (logger.isDebugEnabled()) {
-			logger
-					.debug(String.format("About to start transaction for session %s.", debugString(resourceHolder.getSession())));
-		}
-
-		try {
-			mongoTransactionObject.startTransaction(options);
-		} catch (MongoException ex) {
-			throw new TransactionSystemException(String.format("Could not start Mongo transaction for session %s.",
-					debugString(mongoTransactionObject.getSession())), ex);
-		}
-
-		if (logger.isDebugEnabled()) {
-			logger.debug(String.format("Started transaction for session %s.", debugString(resourceHolder.getSession())));
-		}
-
-		resourceHolder.setSynchronizedWithTransaction(true);
-		TransactionSynchronizationManager.bindResource(getRequiredDbFactory(), resourceHolder);
-	}
-
-	/*
-	 * (non-Javadoc)
-	 * org.springframework.transaction.support.AbstractPlatformTransactionManager#doSuspend(java.lang.Object)
-	 */
-	@Override
-	protected Object doSuspend(Object transaction) throws TransactionException {
-
-		MongoTransactionObject mongoTransactionObject = extractMongoTransaction(transaction);
-		mongoTransactionObject.setResourceHolder(null);
-
-		return TransactionSynchronizationManager.unbindResource(getRequiredDbFactory());
-	}
-
-	/*
-	 * (non-Javadoc)
-	 * org.springframework.transaction.support.AbstractPlatformTransactionManager#doResume(java.lang.Object, java.lang.Object)
-	 */
-	@Override
-	protected void doResume(@Nullable Object transaction, Object suspendedResources) {
-		TransactionSynchronizationManager.bindResource(getRequiredDbFactory(), suspendedResources);
-	}
-
-	/*
-	 * (non-Javadoc)
-	 * org.springframework.transaction.support.AbstractPlatformTransactionManager#doCommit(org.springframework.transaction.support.DefaultTransactionStatus)
-	 */
-	@Override
-	protected final void doCommit(DefaultTransactionStatus status) throws TransactionException {
-
-		MongoTransactionObject mongoTransactionObject = extractMongoTransaction(status);
-
-		if (logger.isDebugEnabled()) {
-			logger.debug(String.format("About to commit transaction for session %s.",
-					debugString(mongoTransactionObject.getSession())));
-		}
-
-		try {
-			doCommit(mongoTransactionObject);
-		} catch (Exception ex) {
-
-			throw new TransactionSystemException(String.format("Could not commit Mongo transaction for session %s.",
-					debugString(mongoTransactionObject.getSession())), ex);
-		}
-	}
-
-	/**
-	 * Customization hook to perform an actual commit of the given transaction.<br />
-	 * If a commit operation encounters an error, the MongoDB driver throws a {@link MongoException} holding
-	 * {@literal error labels}. <br />
-	 * By default those labels are ignored, nevertheless one might check for
-	 * {@link MongoException#UNKNOWN_TRANSACTION_COMMIT_RESULT_LABEL transient commit errors labels} and retry the the
-	 * commit. <br />
-	 * <code>
-	 *     <pre>
-	 * int retries = 3;
-	 * do {
-	 *     try {
-	 *         transactionObject.commitTransaction();
-	 *         break;
-	 *     } catch (MongoException ex) {
-	 *         if (!ex.hasErrorLabel(MongoException.UNKNOWN_TRANSACTION_COMMIT_RESULT_LABEL)) {
-	 *             throw ex;
-	 *         }
-	 *     }
-	 *     Thread.sleep(500);
-	 * } while (--retries > 0);
-	 *     </pre>
-	 * </code>
-	 *
-	 * @param transactionObject never {@literal null}.
-	 * @throws Exception in case of transaction errors.
-	 */
-	protected void doCommit(MongoTransactionObject transactionObject) throws Exception {
-		transactionObject.commitTransaction();
-	}
-
-	/*
-	 * (non-Javadoc)
-	 * org.springframework.transaction.support.AbstractPlatformTransactionManager#doRollback(org.springframework.transaction.support.DefaultTransactionStatus)
-	 */
-	@Override
-	protected void doRollback(DefaultTransactionStatus status) throws TransactionException {
-
-		MongoTransactionObject mongoTransactionObject = extractMongoTransaction(status);
-
-		if (logger.isDebugEnabled()) {
-			logger.debug(String.format("About to abort transaction for session %s.",
-					debugString(mongoTransactionObject.getSession())));
-		}
-
-		try {
-			mongoTransactionObject.abortTransaction();
-		} catch (MongoException ex) {
-
-			throw new TransactionSystemException(String.format("Could not abort Mongo transaction for session %s.",
-					debugString(mongoTransactionObject.getSession())), ex);
-		}
-	}
-
-	/*
-	 * (non-Javadoc)
-	 * org.springframework.transaction.support.AbstractPlatformTransactionManager#doSetRollbackOnly(org.springframework.transaction.support.DefaultTransactionStatus)
-	 */
-	@Override
-	protected void doSetRollbackOnly(DefaultTransactionStatus status) throws TransactionException {
-
-		MongoTransactionObject transactionObject = extractMongoTransaction(status);
-		transactionObject.getRequiredResourceHolder().setRollbackOnly();
-	}
-
-	/*
-	 * (non-Javadoc)
-	 * org.springframework.transaction.support.AbstractPlatformTransactionManager#doCleanupAfterCompletion(java.lang.Object)
-	 */
-	@Override
-	protected void doCleanupAfterCompletion(Object transaction) {
-
-		Assert.isInstanceOf(MongoTransactionObject.class, transaction,
-				() -> String.format("Expected to find a %s but it turned out to be %s.", MongoTransactionObject.class,
-						transaction.getClass()));
-
-		MongoTransactionObject mongoTransactionObject = (MongoTransactionObject) transaction;
-
-		// Remove the connection holder from the thread.
-		TransactionSynchronizationManager.unbindResource(getRequiredDbFactory());
-		mongoTransactionObject.getRequiredResourceHolder().clear();
-
-		if (logger.isDebugEnabled()) {
-			logger.debug(String.format("About to release Session %s after transaction.",
-					debugString(mongoTransactionObject.getSession())));
-		}
-
-		mongoTransactionObject.closeSession();
-	}
-
-	/**
-	 * Set the {@link MongoDbFactory} that this instance should manage transactions for.
-	 *
-	 * @param dbFactory must not be {@literal null}.
-	 */
-	public void setDbFactory(MongoDbFactory dbFactory) {
-
-		Assert.notNull(dbFactory, "DbFactory must not be null!");
-		this.dbFactory = dbFactory;
-	}
-
-	/**
-	 * Set the {@link TransactionOptions} to be applied when starting transactions.
-	 *
-	 * @param options can be {@literal null}.
-	 */
-	public void setOptions(@Nullable TransactionOptions options) {
-		this.options = options;
-	}
-
-	/**
-	 * Get the {@link MongoDbFactory} that this instance manages transactions for.
-	 *
-	 * @return can be {@literal null}.
-	 */
-	@Nullable
-	public MongoDbFactory getDbFactory() {
-		return dbFactory;
-	}
-
-	/*
-	 * (non-Javadoc)
-	 * @see org.springframework.transaction.support.ResourceTransactionManager#getResourceFactory()
-	 */
-	@Override
-	public MongoDbFactory getResourceFactory() {
-		return getRequiredDbFactory();
-	}
-
-	/*
-	 * (non-Javadoc)
-	 * @see org.springframework.beans.factory.InitializingBean#afterPropertiesSet()
-	 */
-	@Override
-	public void afterPropertiesSet() {
-		getRequiredDbFactory();
-	}
-
-	private MongoResourceHolder newResourceHolder(TransactionDefinition definition, ClientSessionOptions options) {
-
-		MongoDbFactory dbFactory = getResourceFactory();
-
-		MongoResourceHolder resourceHolder = new MongoResourceHolder(dbFactory.getSession(options), dbFactory);
-		resourceHolder.setTimeoutIfNotDefaulted(determineTimeout(definition));
-
-		return resourceHolder;
-	}
-
-	/**
-	 * @throws IllegalStateException if {@link #dbFactory} is {@literal null}.
-	 */
-	private MongoDbFactory getRequiredDbFactory() {
-
-		Assert.state(dbFactory != null,
-				"MongoTransactionManager operates upon a MongoDbFactory. Did you forget to provide one? It's required.");
-
-		return dbFactory;
-	}
-
-	private static MongoTransactionObject extractMongoTransaction(Object transaction) {
-
-		Assert.isInstanceOf(MongoTransactionObject.class, transaction,
-				() -> String.format("Expected to find a %s but it turned out to be %s.", MongoTransactionObject.class,
-						transaction.getClass()));
-
-		return (MongoTransactionObject) transaction;
-	}
-
-	private static MongoTransactionObject extractMongoTransaction(DefaultTransactionStatus status) {
-
-		Assert.isInstanceOf(MongoTransactionObject.class, status.getTransaction(),
-				() -> String.format("Expected to find a %s but it turned out to be %s.", MongoTransactionObject.class,
-						status.getTransaction().getClass()));
-
-		return (MongoTransactionObject) status.getTransaction();
-	}
-
-	private static String debugString(@Nullable ClientSession session) {
-
-		if (session == null) {
-			return "null";
-		}
-
-		String debugString = String.format("[%s@%s ", ClassUtils.getShortName(session.getClass()),
-				Integer.toHexString(session.hashCode()));
-
-		try {
-			if (session.getServerSession() != null) {
-				debugString += String.format("id = %s, ", session.getServerSession().getIdentifier());
-				debugString += String.format("causallyConsistent = %s, ", session.isCausallyConsistent());
-				debugString += String.format("txActive = %s, ", session.hasActiveTransaction());
-				debugString += String.format("txNumber = %d, ", session.getServerSession().getTransactionNumber());
-				debugString += String.format("closed = %d, ", session.getServerSession().isClosed());
-				debugString += String.format("clusterTime = %s", session.getClusterTime());
-			} else {
-				debugString += "id = n/a";
-				debugString += String.format("causallyConsistent = %s, ", session.isCausallyConsistent());
-				debugString += String.format("txActive = %s, ", session.hasActiveTransaction());
-				debugString += String.format("clusterTime = %s", session.getClusterTime());
-			}
-		} catch (RuntimeException e) {
-			debugString += String.format("error = %s", e.getMessage());
-		}
-
-		debugString += "]";
-
-		return debugString;
-	}
-
-	/**
-	 * MongoDB specific transaction object, representing a {@link MongoResourceHolder}. Used as transaction object by
-	 * {@link MongoTransactionManager}.
-	 *
-	 * @author Christoph Strobl
-	 * @author Mark Paluch
-	 * @since 2.1
-	 * @see MongoResourceHolder
-	 */
-	protected static class MongoTransactionObject implements SmartTransactionObject {
-
-		private @Nullable MongoResourceHolder resourceHolder;
-
-		MongoTransactionObject(@Nullable MongoResourceHolder resourceHolder) {
-			this.resourceHolder = resourceHolder;
-		}
-
-		/**
-		 * Set the {@link MongoResourceHolder}.
-		 *
-		 * @param resourceHolder can be {@literal null}.
-		 */
-		void setResourceHolder(@Nullable MongoResourceHolder resourceHolder) {
-			this.resourceHolder = resourceHolder;
-		}
-
-		/**
-		 * @return {@literal true} if a {@link MongoResourceHolder} is set.
-		 */
-		final boolean hasResourceHolder() {
-			return resourceHolder != null;
-		}
-
-		/**
-		 * Start a MongoDB transaction optionally given {@link TransactionOptions}.
-		 *
-		 * @param options can be {@literal null}
-		 */
-		void startTransaction(@Nullable TransactionOptions options) {
-
-			ClientSession session = getRequiredSession();
-			if (options != null) {
-				session.startTransaction(options);
-			} else {
-				session.startTransaction();
-			}
-		}
-
-		/**
-		 * Commit the transaction.
-		 */
-		public void commitTransaction() {
-			getRequiredSession().commitTransaction();
-		}
-
-		/**
-		 * Rollback (abort) the transaction.
-		 */
-		public void abortTransaction() {
-			getRequiredSession().abortTransaction();
-		}
-
-		/**
-		 * Close a {@link ClientSession} without regard to its transactional state.
-		 */
-		void closeSession() {
-
-			ClientSession session = getRequiredSession();
-			if (session.getServerSession() != null && !session.getServerSession().isClosed()) {
-				session.close();
-			}
-		}
-
-		@Nullable
-		public ClientSession getSession() {
-			return resourceHolder != null ? resourceHolder.getSession() : null;
-		}
-
-		private MongoResourceHolder getRequiredResourceHolder() {
-
-			Assert.state(resourceHolder != null, "MongoResourceHolder is required but not present. o_O");
-			return resourceHolder;
-		}
-
-		private ClientSession getRequiredSession() {
-
-			ClientSession session = getSession();
-			Assert.state(session != null, "A Session is required but it turned out to be null.");
-			return session;
-		}
-
-		/*
-		 * (non-Javadoc)
-		 * @see  org.springframework.transaction.support.SmartTransactionObject#isRollbackOnly()
-		 */
-		@Override
-		public boolean isRollbackOnly() {
-			return this.resourceHolder != null && this.resourceHolder.isRollbackOnly();
-		}
-
-		/*
-		 * (non-Javadoc)
-		 * @see  org.springframework.transaction.support.SmartTransactionObject#flush()
-		 */
-		@Override
-		public void flush() {
-			TransactionSynchronizationUtils.triggerFlush();
-		}
-
-	}
-}

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/ReactiveMongoDatabaseFactory.java

@@ -1,102 +0,0 @@
-/*
- * Copyright 2016-2020 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.springframework.data.mongodb;
-
-import reactor.core.publisher.Mono;
-
-import org.bson.codecs.configuration.CodecRegistry;
-import org.springframework.dao.DataAccessException;
-import org.springframework.dao.support.PersistenceExceptionTranslator;
-import org.springframework.data.mongodb.core.MongoExceptionTranslator;
-
-import com.mongodb.ClientSessionOptions;
-import com.mongodb.reactivestreams.client.ClientSession;
-import com.mongodb.reactivestreams.client.MongoDatabase;
-
-/**
- * Interface for factories creating reactive {@link MongoDatabase} instances.
- *
- * @author Mark Paluch
- * @author Christoph Strobl
- * @since 2.0
- */
-public interface ReactiveMongoDatabaseFactory extends CodecRegistryProvider {
-
-	/**
-	 * Creates a default {@link MongoDatabase} instance.
-	 *
-	 * @return
-	 * @throws DataAccessException
-	 */
-	MongoDatabase getMongoDatabase() throws DataAccessException;
-
-	/**
-	 * Creates a {@link MongoDatabase} instance to access the database with the given name.
-	 *
-	 * @param dbName must not be {@literal null} or empty.
-	 * @return
-	 * @throws DataAccessException
-	 */
-	MongoDatabase getMongoDatabase(String dbName) throws DataAccessException;
-
-	/**
-	 * Exposes a shared {@link MongoExceptionTranslator}.
-	 *
-	 * @return will never be {@literal null}.
-	 */
-	PersistenceExceptionTranslator getExceptionTranslator();
-
-	/**
-	 * Get the underlying {@link CodecRegistry} used by the reactive MongoDB Java driver.
-	 *
-	 * @return never {@literal null}.
-	 */
-	@Override
-	default CodecRegistry getCodecRegistry() {
-		return getMongoDatabase().getCodecRegistry();
-	}
-
-	/**
-	 * Obtain a {@link Mono} emitting a {@link ClientSession} for given {@link ClientSessionOptions options}.
-	 *
-	 * @param options must not be {@literal null}.
-	 * @return never {@literal null}.
-	 * @since 2.1
-	 */
-	Mono<ClientSession> getSession(ClientSessionOptions options);
-
-	/**
-	 * Obtain a {@link ClientSession} bound instance of {@link ReactiveMongoDatabaseFactory} returning
-	 * {@link MongoDatabase} instances that are aware and bound to the given session.
-	 *
-	 * @param session must not be {@literal null}.
-	 * @return never {@literal null}.
-	 * @since 2.1
-	 */
-	ReactiveMongoDatabaseFactory withSession(ClientSession session);
-
-	/**
-	 * Returns if the given {@link ReactiveMongoDatabaseFactory} is bound to a
-	 * {@link com.mongodb.reactivestreams.client.ClientSession} that has an
-	 * {@link com.mongodb.reactivestreams.client.ClientSession#hasActiveTransaction() active transaction}.
-	 *
-	 * @return {@literal true} if there's an active transaction, {@literal false} otherwise.
-	 * @since 2.2
-	 */
-	default boolean isTransactionActive() {
-		return false;
-	}
-}

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/ReactiveMongoDatabaseUtils.java

@@ -1,278 +0,0 @@
-/*
- * Copyright 2019-2020 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.springframework.data.mongodb;
-
-import reactor.core.publisher.Mono;
-import reactor.util.context.Context;
-
-import org.springframework.lang.Nullable;
-import org.springframework.transaction.NoTransactionException;
-import org.springframework.transaction.reactive.ReactiveResourceSynchronization;
-import org.springframework.transaction.reactive.TransactionSynchronization;
-import org.springframework.transaction.reactive.TransactionSynchronizationManager;
-import org.springframework.transaction.support.ResourceHolderSynchronization;
-import org.springframework.util.Assert;
-import org.springframework.util.StringUtils;
-
-import com.mongodb.ClientSessionOptions;
-import com.mongodb.reactivestreams.client.ClientSession;
-import com.mongodb.reactivestreams.client.MongoCollection;
-import com.mongodb.reactivestreams.client.MongoDatabase;
-
-/**
- * Helper class for managing reactive {@link MongoDatabase} instances via {@link ReactiveMongoDatabaseFactory}. Used for
- * obtaining {@link ClientSession session bound} resources, such as {@link MongoDatabase} and {@link MongoCollection}
- * suitable for transactional usage.
- * <p />
- * <strong>Note:</strong> Intended for internal usage only.
- *
- * @author Mark Paluch
- * @author Christoph Strobl
- * @since 2.2
- */
-public class ReactiveMongoDatabaseUtils {
-
-	/**
-	 * Check if the {@link ReactiveMongoDatabaseFactory} is actually bound to a
-	 * {@link com.mongodb.reactivestreams.client.ClientSession} that has an active transaction, or if a
-	 * {@link org.springframework.transaction.reactive.TransactionSynchronization} has been registered for the
-	 * {@link ReactiveMongoDatabaseFactory resource} and if the associated
-	 * {@link com.mongodb.reactivestreams.client.ClientSession} has an
-	 * {@link com.mongodb.reactivestreams.client.ClientSession#hasActiveTransaction() active transaction}.
-	 *
-	 * @param databaseFactory the resource to check transactions for. Must not be {@literal null}.
-	 * @return a {@link Mono} emitting {@literal true} if the factory has an ongoing transaction.
-	 */
-	public static Mono<Boolean> isTransactionActive(ReactiveMongoDatabaseFactory databaseFactory) {
-
-		if (databaseFactory.isTransactionActive()) {
-			return Mono.just(true);
-		}
-
-		return TransactionSynchronizationManager.forCurrentTransaction() //
-				.map(it -> {
-
-					ReactiveMongoResourceHolder holder = (ReactiveMongoResourceHolder) it.getResource(databaseFactory);
-					return holder != null && holder.hasActiveTransaction();
-				}) //
-				.onErrorResume(NoTransactionException.class, e -> Mono.just(false));
-	}
-
-	/**
-	 * Obtain the default {@link MongoDatabase database} form the given {@link ReactiveMongoDatabaseFactory factory} using
-	 * {@link SessionSynchronization#ON_ACTUAL_TRANSACTION native session synchronization}.
-	 * <p />
-	 * Registers a {@link MongoSessionSynchronization MongoDB specific transaction synchronization} within the subscriber
-	 * {@link Context} if {@link TransactionSynchronizationManager#isSynchronizationActive() synchronization is active}.
-	 *
-	 * @param factory the {@link ReactiveMongoDatabaseFactory} to get the {@link MongoDatabase} from.
-	 * @return the {@link MongoDatabase} that is potentially associated with a transactional {@link ClientSession}.
-	 */
-	public static Mono<MongoDatabase> getDatabase(ReactiveMongoDatabaseFactory factory) {
-		return doGetMongoDatabase(null, factory, SessionSynchronization.ON_ACTUAL_TRANSACTION);
-	}
-
-	/**
-	 * Obtain the default {@link MongoDatabase database} form the given {@link ReactiveMongoDatabaseFactory factory}.
-	 * <p />
-	 * Registers a {@link MongoSessionSynchronization MongoDB specific transaction synchronization} within the subscriber
-	 * {@link Context} if {@link TransactionSynchronizationManager#isSynchronizationActive() synchronization is active}.
-	 *
-	 * @param factory the {@link ReactiveMongoDatabaseFactory} to get the {@link MongoDatabase} from.
-	 * @param sessionSynchronization the synchronization to use. Must not be {@literal null}.
-	 * @return the {@link MongoDatabase} that is potentially associated with a transactional {@link ClientSession}.
-	 */
-	public static Mono<MongoDatabase> getDatabase(ReactiveMongoDatabaseFactory factory,
-			SessionSynchronization sessionSynchronization) {
-		return doGetMongoDatabase(null, factory, sessionSynchronization);
-	}
-
-	/**
-	 * Obtain the {@link MongoDatabase database} with given name form the given {@link ReactiveMongoDatabaseFactory
-	 * factory} using {@link SessionSynchronization#ON_ACTUAL_TRANSACTION native session synchronization}.
-	 * <p />
-	 * Registers a {@link MongoSessionSynchronization MongoDB specific transaction synchronization} within the subscriber
-	 * {@link Context} if {@link TransactionSynchronizationManager#isSynchronizationActive() synchronization is active}.
-	 *
-	 * @param dbName the name of the {@link MongoDatabase} to get.
-	 * @param factory the {@link ReactiveMongoDatabaseFactory} to get the {@link MongoDatabase} from.
-	 * @return the {@link MongoDatabase} that is potentially associated with a transactional {@link ClientSession}.
-	 */
-	public static Mono<MongoDatabase> getDatabase(String dbName, ReactiveMongoDatabaseFactory factory) {
-		return doGetMongoDatabase(dbName, factory, SessionSynchronization.ON_ACTUAL_TRANSACTION);
-	}
-
-	/**
-	 * Obtain the {@link MongoDatabase database} with given name form the given {@link ReactiveMongoDatabaseFactory
-	 * factory}.
-	 * <p />
-	 * Registers a {@link MongoSessionSynchronization MongoDB specific transaction synchronization} within the subscriber
-	 * {@link Context} if {@link TransactionSynchronizationManager#isSynchronizationActive() synchronization is active}.
-	 *
-	 * @param dbName the name of the {@link MongoDatabase} to get.
-	 * @param factory the {@link ReactiveMongoDatabaseFactory} to get the {@link MongoDatabase} from.
-	 * @param sessionSynchronization the synchronization to use. Must not be {@literal null}.
-	 * @return the {@link MongoDatabase} that is potentially associated with a transactional {@link ClientSession}.
-	 */
-	public static Mono<MongoDatabase> getDatabase(String dbName, ReactiveMongoDatabaseFactory factory,
-			SessionSynchronization sessionSynchronization) {
-		return doGetMongoDatabase(dbName, factory, sessionSynchronization);
-	}
-
-	private static Mono<MongoDatabase> doGetMongoDatabase(@Nullable String dbName, ReactiveMongoDatabaseFactory factory,
-			SessionSynchronization sessionSynchronization) {
-
-		Assert.notNull(factory, "DatabaseFactory must not be null!");
-
-		return TransactionSynchronizationManager.forCurrentTransaction()
-				.filter(TransactionSynchronizationManager::isSynchronizationActive) //
-				.flatMap(synchronizationManager -> {
-
-					return doGetSession(synchronizationManager, factory, sessionSynchronization) //
-							.map(it -> getMongoDatabaseOrDefault(dbName, factory.withSession(it)));
-				})
-				.onErrorResume(NoTransactionException.class,
-						e -> Mono.fromSupplier(() -> getMongoDatabaseOrDefault(dbName, factory)))
-				.defaultIfEmpty(getMongoDatabaseOrDefault(dbName, factory));
-	}
-
-	private static MongoDatabase getMongoDatabaseOrDefault(@Nullable String dbName,
-			ReactiveMongoDatabaseFactory factory) {
-		return StringUtils.hasText(dbName) ? factory.getMongoDatabase(dbName) : factory.getMongoDatabase();
-	}
-
-	private static Mono<ClientSession> doGetSession(TransactionSynchronizationManager synchronizationManager,
-			ReactiveMongoDatabaseFactory dbFactory, SessionSynchronization sessionSynchronization) {
-
-		final ReactiveMongoResourceHolder registeredHolder = (ReactiveMongoResourceHolder) synchronizationManager
-				.getResource(dbFactory);
-
-		// check for native MongoDB transaction
-		if (registeredHolder != null
-				&& (registeredHolder.hasSession() || registeredHolder.isSynchronizedWithTransaction())) {
-
-			return registeredHolder.hasSession() ? Mono.just(registeredHolder.getSession())
-					: createClientSession(dbFactory).map(registeredHolder::setSessionIfAbsent);
-		}
-
-		if (SessionSynchronization.ON_ACTUAL_TRANSACTION.equals(sessionSynchronization)) {
-			return Mono.empty();
-		}
-
-		// init a non native MongoDB transaction by registering a MongoSessionSynchronization
-		return createClientSession(dbFactory).map(session -> {
-
-			ReactiveMongoResourceHolder newHolder = new ReactiveMongoResourceHolder(session, dbFactory);
-			newHolder.getRequiredSession().startTransaction();
-
-			synchronizationManager
-					.registerSynchronization(new MongoSessionSynchronization(synchronizationManager, newHolder, dbFactory));
-			newHolder.setSynchronizedWithTransaction(true);
-			synchronizationManager.bindResource(dbFactory, newHolder);
-
-			return newHolder.getSession();
-		});
-	}
-
-	private static Mono<ClientSession> createClientSession(ReactiveMongoDatabaseFactory dbFactory) {
-		return dbFactory.getSession(ClientSessionOptions.builder().causallyConsistent(true).build());
-	}
-
-	/**
-	 * MongoDB specific {@link ResourceHolderSynchronization} for resource cleanup at the end of a transaction when
-	 * participating in a non-native MongoDB transaction, such as a R2CBC transaction.
-	 *
-	 * @author Mark Paluch
-	 * @since 2.2
-	 */
-	private static class MongoSessionSynchronization
-			extends ReactiveResourceSynchronization<ReactiveMongoResourceHolder, Object> {
-
-		private final ReactiveMongoResourceHolder resourceHolder;
-
-		MongoSessionSynchronization(TransactionSynchronizationManager synchronizationManager,
-				ReactiveMongoResourceHolder resourceHolder, ReactiveMongoDatabaseFactory dbFactory) {
-
-			super(resourceHolder, dbFactory, synchronizationManager);
-			this.resourceHolder = resourceHolder;
-		}
-
-		/*
-		 * (non-Javadoc)
-		 * @see org.springframework.transaction.reactive.ReactiveResourceSynchronization#shouldReleaseBeforeCompletion()
-		 */
-		@Override
-		protected boolean shouldReleaseBeforeCompletion() {
-			return false;
-		}
-
-		/*
-		 * (non-Javadoc)
-		 * @see org.springframework.transaction.reactive.ReactiveResourceSynchronization#processResourceAfterCommit(java.lang.Object)
-		 */
-		@Override
-		protected Mono<Void> processResourceAfterCommit(ReactiveMongoResourceHolder resourceHolder) {
-
-			if (isTransactionActive(resourceHolder)) {
-				return Mono.from(resourceHolder.getRequiredSession().commitTransaction());
-			}
-
-			return Mono.empty();
-		}
-
-		/*
-		 * (non-Javadoc)
-		 * @see org.springframework.transaction.reactive.ReactiveResourceSynchronization#afterCompletion(int)
-		 */
-		@Override
-		public Mono<Void> afterCompletion(int status) {
-
-			return Mono.defer(() -> {
-
-				if (status == TransactionSynchronization.STATUS_ROLLED_BACK && isTransactionActive(this.resourceHolder)) {
-
-					return Mono.from(resourceHolder.getRequiredSession().abortTransaction()) //
-							.then(super.afterCompletion(status));
-				}
-
-				return super.afterCompletion(status);
-			});
-		}
-
-		/*
-		 * (non-Javadoc)
-		 * @see org.springframework.transaction.reactive.ReactiveResourceSynchronization#releaseResource(java.lang.Object, java.lang.Object)
-		 */
-		@Override
-		protected Mono<Void> releaseResource(ReactiveMongoResourceHolder resourceHolder, Object resourceKey) {
-
-			return Mono.fromRunnable(() -> {
-				if (resourceHolder.hasActiveSession()) {
-					resourceHolder.getRequiredSession().close();
-				}
-			});
-		}
-
-		private boolean isTransactionActive(ReactiveMongoResourceHolder resourceHolder) {
-
-			if (!resourceHolder.hasSession()) {
-				return false;
-			}
-
-			return resourceHolder.getRequiredSession().hasActiveTransaction();
-		}
-	}
-}

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/ReactiveMongoResourceHolder.java

@@ -1,155 +0,0 @@
-/*
- * Copyright 2019-2020 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.springframework.data.mongodb;
-
-import org.springframework.data.mongodb.core.ReactiveMongoTemplate;
-import org.springframework.lang.Nullable;
-import org.springframework.transaction.support.ResourceHolderSupport;
-
-import com.mongodb.reactivestreams.client.ClientSession;
-
-/**
- * MongoDB specific resource holder, wrapping a {@link ClientSession}. {@link ReactiveMongoTransactionManager} binds
- * instances of this class to the subscriber context.
- * <p />
- * <strong>Note:</strong> Intended for internal usage only.
- *
- * @author Mark Paluch
- * @author Christoph Strobl
- * @since 2.2
- * @see ReactiveMongoTransactionManager
- * @see ReactiveMongoTemplate
- */
-class ReactiveMongoResourceHolder extends ResourceHolderSupport {
-
-	private @Nullable ClientSession session;
-	private ReactiveMongoDatabaseFactory databaseFactory;
-
-	/**
-	 * Create a new {@link ReactiveMongoResourceHolder} for a given {@link ClientSession session}.
-	 *
-	 * @param session the associated {@link ClientSession}. Can be {@literal null}.
-	 * @param databaseFactory the associated {@link MongoDbFactory}. must not be {@literal null}.
-	 */
-	ReactiveMongoResourceHolder(@Nullable ClientSession session, ReactiveMongoDatabaseFactory databaseFactory) {
-
-		this.session = session;
-		this.databaseFactory = databaseFactory;
-	}
-
-	/**
-	 * @return the associated {@link ClientSession}. Can be {@literal null}.
-	 */
-	@Nullable
-	ClientSession getSession() {
-		return session;
-	}
-
-	/**
-	 * @return the required associated {@link ClientSession}.
-	 * @throws IllegalStateException if no session is associated.
-	 */
-	ClientSession getRequiredSession() {
-
-		ClientSession session = getSession();
-
-		if (session == null) {
-			throw new IllegalStateException("No ClientSession associated");
-		}
-		return session;
-	}
-
-	/**
-	 * @return the associated {@link ReactiveMongoDatabaseFactory}.
-	 */
-	public ReactiveMongoDatabaseFactory getDatabaseFactory() {
-		return databaseFactory;
-	}
-
-	/**
-	 * Set the {@link ClientSession} to guard.
-	 *
-	 * @param session can be {@literal null}.
-	 */
-	public void setSession(@Nullable ClientSession session) {
-		this.session = session;
-	}
-
-	/**
-	 * @return {@literal true} if session is not {@literal null}.
-	 */
-	boolean hasSession() {
-		return session != null;
-	}
-
-	/**
-	 * If the {@link ReactiveMongoResourceHolder} is {@link #hasSession() not already associated} with a
-	 * {@link ClientSession} the given value is {@link #setSession(ClientSession) set} and returned, otherwise the current
-	 * bound session is returned.
-	 * 
-	 * @param session
-	 * @return
-	 */
-	@Nullable
-	public ClientSession setSessionIfAbsent(@Nullable ClientSession session) {
-
-		if (!hasSession()) {
-			setSession(session);
-		}
-
-		return session;
-	}
-
-	/**
-	 * @return {@literal true} if the session is active and has not been closed.
-	 */
-	boolean hasActiveSession() {
-
-		if (!hasSession()) {
-			return false;
-		}
-
-		return hasServerSession() && !getRequiredSession().getServerSession().isClosed();
-	}
-
-	/**
-	 * @return {@literal true} if the session has an active transaction.
-	 * @see #hasActiveSession()
-	 */
-	boolean hasActiveTransaction() {
-
-		if (!hasActiveSession()) {
-			return false;
-		}
-
-		return getRequiredSession().hasActiveTransaction();
-	}
-
-	/**
-	 * @return {@literal true} if the {@link ClientSession} has a {@link com.mongodb.session.ServerSession} associated
-	 *         that is accessible via {@link ClientSession#getServerSession()}.
-	 */
-	boolean hasServerSession() {
-
-		try {
-			return getRequiredSession().getServerSession() != null;
-		} catch (IllegalStateException serverSessionClosed) {
-			// ignore
-		}
-
-		return false;
-	}
-}

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/ReactiveMongoTransactionManager.java

@@ -1,530 +0,0 @@
-/*
- * Copyright 2019-2020 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.springframework.data.mongodb;
-
-import reactor.core.publisher.Mono;
-
-import org.springframework.beans.factory.InitializingBean;
-import org.springframework.lang.Nullable;
-import org.springframework.transaction.TransactionDefinition;
-import org.springframework.transaction.TransactionException;
-import org.springframework.transaction.TransactionSystemException;
-import org.springframework.transaction.reactive.AbstractReactiveTransactionManager;
-import org.springframework.transaction.reactive.GenericReactiveTransaction;
-import org.springframework.transaction.reactive.TransactionSynchronizationManager;
-import org.springframework.transaction.support.SmartTransactionObject;
-import org.springframework.util.Assert;
-import org.springframework.util.ClassUtils;
-
-import com.mongodb.ClientSessionOptions;
-import com.mongodb.MongoException;
-import com.mongodb.TransactionOptions;
-import com.mongodb.reactivestreams.client.ClientSession;
-
-/**
- * A {@link org.springframework.transaction.ReactiveTransactionManager} implementation that manages
- * {@link com.mongodb.reactivestreams.client.ClientSession} based transactions for a single
- * {@link org.springframework.data.mongodb.ReactiveMongoDatabaseFactory}.
- * <p />
- * Binds a {@link ClientSession} from the specified
- * {@link org.springframework.data.mongodb.ReactiveMongoDatabaseFactory} to the subscriber
- * {@link reactor.util.context.Context}.
- * <p />
- * {@link org.springframework.transaction.TransactionDefinition#isReadOnly() Readonly} transactions operate on a
- * {@link ClientSession} and enable causal consistency, and also {@link ClientSession#startTransaction() start},
- * {@link com.mongodb.reactivestreams.client.ClientSession#commitTransaction() commit} or
- * {@link ClientSession#abortTransaction() abort} a transaction.
- * <p />
- * Application code is required to retrieve the {@link com.mongodb.reactivestreams.client.MongoDatabase} via
- * {@link org.springframework.data.mongodb.ReactiveMongoDatabaseUtils#getDatabase(ReactiveMongoDatabaseFactory)} instead
- * of a standard {@link org.springframework.data.mongodb.ReactiveMongoDatabaseFactory#getMongoDatabase()} call. Spring
- * classes such as {@link org.springframework.data.mongodb.core.ReactiveMongoTemplate} use this strategy implicitly.
- * <p />
- * By default failure of a {@literal commit} operation raises a {@link TransactionSystemException}. You can override
- * {@link #doCommit(TransactionSynchronizationManager, ReactiveMongoTransactionObject)} to implement the
- * <a href="https://docs.mongodb.com/manual/core/transactions/#retry-commit-operation">Retry Commit Operation</a>
- * behavior as outlined in the MongoDB reference manual.
- *
- * @author Christoph Strobl
- * @author Mark Paluch
- * @since 2.2
- * @see <a href="https://www.mongodb.com/transactions">MongoDB Transaction Documentation</a>
- * @see ReactiveMongoDatabaseUtils#getDatabase(ReactiveMongoDatabaseFactory, SessionSynchronization)
- */
-public class ReactiveMongoTransactionManager extends AbstractReactiveTransactionManager implements InitializingBean {
-
-	private @Nullable ReactiveMongoDatabaseFactory databaseFactory;
-	private @Nullable TransactionOptions options;
-
-	/**
-	 * Create a new {@link ReactiveMongoTransactionManager} for bean-style usage.
-	 * <p />
-	 * <strong>Note:</strong>The {@link org.springframework.data.mongodb.ReactiveMongoDatabaseFactory db factory} has to
-	 * be {@link #setDatabaseFactory(ReactiveMongoDatabaseFactory)} set} before using the instance. Use this constructor
-	 * to prepare a {@link ReactiveMongoTransactionManager} via a {@link org.springframework.beans.factory.BeanFactory}.
-	 * <p />
-	 * Optionally it is possible to set default {@link TransactionOptions transaction options} defining
-	 * {@link com.mongodb.ReadConcern} and {@link com.mongodb.WriteConcern}.
-	 *
-	 * @see #setDatabaseFactory(ReactiveMongoDatabaseFactory)
-	 */
-	public ReactiveMongoTransactionManager() {}
-
-	/**
-	 * Create a new {@link ReactiveMongoTransactionManager} obtaining sessions from the given
-	 * {@link ReactiveMongoDatabaseFactory}.
-	 *
-	 * @param databaseFactory must not be {@literal null}.
-	 */
-	public ReactiveMongoTransactionManager(ReactiveMongoDatabaseFactory databaseFactory) {
-		this(databaseFactory, null);
-	}
-
-	/**
-	 * Create a new {@link ReactiveMongoTransactionManager} obtaining sessions from the given
-	 * {@link ReactiveMongoDatabaseFactory} applying the given {@link TransactionOptions options}, if present, when
-	 * starting a new transaction.
-	 *
-	 * @param databaseFactory must not be {@literal null}.
-	 * @param options can be {@literal null}.
-	 */
-	public ReactiveMongoTransactionManager(ReactiveMongoDatabaseFactory databaseFactory,
-			@Nullable TransactionOptions options) {
-
-		Assert.notNull(databaseFactory, "DatabaseFactory must not be null!");
-
-		this.databaseFactory = databaseFactory;
-		this.options = options;
-	}
-
-	/* 
-	 * (non-Javadoc)
-	 * @see org.springframework.transaction.reactive.AbstractReactiveTransactionManager#doGetTransaction(org.springframework.transaction.reactive.TransactionSynchronizationManager)
-	 */
-	@Override
-	protected Object doGetTransaction(TransactionSynchronizationManager synchronizationManager)
-			throws TransactionException {
-
-		ReactiveMongoResourceHolder resourceHolder = (ReactiveMongoResourceHolder) synchronizationManager
-				.getResource(getRequiredDatabaseFactory());
-		return new ReactiveMongoTransactionObject(resourceHolder);
-	}
-
-	/* 
-	 * (non-Javadoc)
-	 * @see org.springframework.transaction.reactive.AbstractReactiveTransactionManager#isExistingTransaction(java.lang.Object)
-	 */
-	@Override
-	protected boolean isExistingTransaction(Object transaction) throws TransactionException {
-		return extractMongoTransaction(transaction).hasResourceHolder();
-	}
-
-	/* 
-	 * (non-Javadoc)
-	 * @see org.springframework.transaction.reactive.AbstractReactiveTransactionManager#doBegin(org.springframework.transaction.reactive.TransactionSynchronizationManager, java.lang.Object, org.springframework.transaction.TransactionDefinition)
-	 */
-	@Override
-	protected Mono<Void> doBegin(TransactionSynchronizationManager synchronizationManager, Object transaction,
-			TransactionDefinition definition) throws TransactionException {
-
-		return Mono.defer(() -> {
-
-			ReactiveMongoTransactionObject mongoTransactionObject = extractMongoTransaction(transaction);
-
-			Mono<ReactiveMongoResourceHolder> holder = newResourceHolder(definition,
-					ClientSessionOptions.builder().causallyConsistent(true).build());
-
-			return holder.doOnNext(resourceHolder -> {
-
-				mongoTransactionObject.setResourceHolder(resourceHolder);
-
-				if (logger.isDebugEnabled()) {
-					logger.debug(
-							String.format("About to start transaction for session %s.", debugString(resourceHolder.getSession())));
-				}
-
-			}).doOnNext(resourceHolder -> {
-
-				mongoTransactionObject.startTransaction(options);
-
-				if (logger.isDebugEnabled()) {
-					logger.debug(String.format("Started transaction for session %s.", debugString(resourceHolder.getSession())));
-				}
-
-			})//
-					.onErrorMap(
-							ex -> new TransactionSystemException(String.format("Could not start Mongo transaction for session %s.",
-									debugString(mongoTransactionObject.getSession())), ex))
-					.doOnSuccess(resourceHolder -> {
-
-						synchronizationManager.bindResource(getRequiredDatabaseFactory(), resourceHolder);
-					}).then();
-		});
-	}
-
-	/* 
-	 * (non-Javadoc)
-	 * @see org.springframework.transaction.reactive.AbstractReactiveTransactionManager#doSuspend(org.springframework.transaction.reactive.TransactionSynchronizationManager, java.lang.Object)
-	 */
-	@Override
-	protected Mono<Object> doSuspend(TransactionSynchronizationManager synchronizationManager, Object transaction)
-			throws TransactionException {
-
-		return Mono.fromSupplier(() -> {
-
-			ReactiveMongoTransactionObject mongoTransactionObject = extractMongoTransaction(transaction);
-			mongoTransactionObject.setResourceHolder(null);
-
-			return synchronizationManager.unbindResource(getRequiredDatabaseFactory());
-		});
-	}
-
-	/* 
-	 * (non-Javadoc)
-	 * @see org.springframework.transaction.reactive.AbstractReactiveTransactionManager#doResume(org.springframework.transaction.reactive.TransactionSynchronizationManager, java.lang.Object, java.lang.Object)
-	 */
-	@Override
-	protected Mono<Void> doResume(TransactionSynchronizationManager synchronizationManager, @Nullable Object transaction,
-			Object suspendedResources) {
-		return Mono
-				.fromRunnable(() -> synchronizationManager.bindResource(getRequiredDatabaseFactory(), suspendedResources));
-	}
-
-	/* 
-	 * (non-Javadoc)
-	 * @see org.springframework.transaction.reactive.AbstractReactiveTransactionManager#doCommit(org.springframework.transaction.reactive.TransactionSynchronizationManager, org.springframework.transaction.reactive.GenericReactiveTransaction)
-	 */
-	@Override
-	protected final Mono<Void> doCommit(TransactionSynchronizationManager synchronizationManager,
-			GenericReactiveTransaction status) throws TransactionException {
-
-		return Mono.defer(() -> {
-
-			ReactiveMongoTransactionObject mongoTransactionObject = extractMongoTransaction(status);
-
-			if (logger.isDebugEnabled()) {
-				logger.debug(String.format("About to commit transaction for session %s.",
-						debugString(mongoTransactionObject.getSession())));
-			}
-
-			return doCommit(synchronizationManager, mongoTransactionObject).onErrorMap(ex -> {
-				return new TransactionSystemException(String.format("Could not commit Mongo transaction for session %s.",
-						debugString(mongoTransactionObject.getSession())), ex);
-			});
-		});
-	}
-
-	/**
-	 * Customization hook to perform an actual commit of the given transaction.<br />
-	 * If a commit operation encounters an error, the MongoDB driver throws a {@link MongoException} holding
-	 * {@literal error labels}. <br />
-	 * By default those labels are ignored, nevertheless one might check for
-	 * {@link MongoException#UNKNOWN_TRANSACTION_COMMIT_RESULT_LABEL transient commit errors labels} and retry the the
-	 * commit.
-	 *
-	 * @param synchronizationManager reactive synchronization manager.
-	 * @param transactionObject never {@literal null}.
-	 */
-	protected Mono<Void> doCommit(TransactionSynchronizationManager synchronizationManager,
-			ReactiveMongoTransactionObject transactionObject) {
-		return transactionObject.commitTransaction();
-	}
-
-	/* 
-	 * (non-Javadoc)
-	 * @see org.springframework.transaction.reactive.AbstractReactiveTransactionManager#doRollback(org.springframework.transaction.reactive.TransactionSynchronizationManager, org.springframework.transaction.reactive.GenericReactiveTransaction)
-	 */
-	@Override
-	protected Mono<Void> doRollback(TransactionSynchronizationManager synchronizationManager,
-			GenericReactiveTransaction status) {
-
-		return Mono.defer(() -> {
-
-			ReactiveMongoTransactionObject mongoTransactionObject = extractMongoTransaction(status);
-
-			if (logger.isDebugEnabled()) {
-				logger.debug(String.format("About to abort transaction for session %s.",
-						debugString(mongoTransactionObject.getSession())));
-			}
-
-			return mongoTransactionObject.abortTransaction().onErrorResume(MongoException.class, ex -> {
-				return Mono
-						.error(new TransactionSystemException(String.format("Could not abort Mongo transaction for session %s.",
-								debugString(mongoTransactionObject.getSession())), ex));
-			});
-		});
-	}
-
-	/* 
-	 * (non-Javadoc)
-	 * @see org.springframework.transaction.reactive.AbstractReactiveTransactionManager#doSetRollbackOnly(org.springframework.transaction.reactive.TransactionSynchronizationManager, org.springframework.transaction.reactive.GenericReactiveTransaction)
-	 */
-	@Override
-	protected Mono<Void> doSetRollbackOnly(TransactionSynchronizationManager synchronizationManager,
-			GenericReactiveTransaction status) throws TransactionException {
-
-		return Mono.fromRunnable(() -> {
-			ReactiveMongoTransactionObject transactionObject = extractMongoTransaction(status);
-			transactionObject.getRequiredResourceHolder().setRollbackOnly();
-		});
-	}
-
-	/* 
-	 * (non-Javadoc)
-	 * @see org.springframework.transaction.reactive.AbstractReactiveTransactionManager#doCleanupAfterCompletion(org.springframework.transaction.reactive.TransactionSynchronizationManager, java.lang.Object)
-	 */
-	@Override
-	protected Mono<Void> doCleanupAfterCompletion(TransactionSynchronizationManager synchronizationManager,
-			Object transaction) {
-
-		Assert.isInstanceOf(ReactiveMongoTransactionObject.class, transaction,
-				() -> String.format("Expected to find a %s but it turned out to be %s.", ReactiveMongoTransactionObject.class,
-						transaction.getClass()));
-
-		return Mono.fromRunnable(() -> {
-			ReactiveMongoTransactionObject mongoTransactionObject = (ReactiveMongoTransactionObject) transaction;
-
-			// Remove the connection holder from the thread.
-			synchronizationManager.unbindResource(getRequiredDatabaseFactory());
-			mongoTransactionObject.getRequiredResourceHolder().clear();
-
-			if (logger.isDebugEnabled()) {
-				logger.debug(String.format("About to release Session %s after transaction.",
-						debugString(mongoTransactionObject.getSession())));
-			}
-
-			mongoTransactionObject.closeSession();
-		});
-	}
-
-	/**
-	 * Set the {@link ReactiveMongoDatabaseFactory} that this instance should manage transactions for.
-	 *
-	 * @param databaseFactory must not be {@literal null}.
-	 */
-	public void setDatabaseFactory(ReactiveMongoDatabaseFactory databaseFactory) {
-
-		Assert.notNull(databaseFactory, "DatabaseFactory must not be null!");
-		this.databaseFactory = databaseFactory;
-	}
-
-	/**
-	 * Set the {@link TransactionOptions} to be applied when starting transactions.
-	 *
-	 * @param options can be {@literal null}.
-	 */
-	public void setOptions(@Nullable TransactionOptions options) {
-		this.options = options;
-	}
-
-	/**
-	 * Get the {@link ReactiveMongoDatabaseFactory} that this instance manages transactions for.
-	 *
-	 * @return can be {@literal null}.
-	 */
-	@Nullable
-	public ReactiveMongoDatabaseFactory getDatabaseFactory() {
-		return databaseFactory;
-	}
-
-	/*
-	 * (non-Javadoc)
-	 * @see org.springframework.beans.factory.InitializingBean#afterPropertiesSet()
-	 */
-	@Override
-	public void afterPropertiesSet() {
-		getRequiredDatabaseFactory();
-	}
-
-	private Mono<ReactiveMongoResourceHolder> newResourceHolder(TransactionDefinition definition,
-			ClientSessionOptions options) {
-
-		ReactiveMongoDatabaseFactory dbFactory = getRequiredDatabaseFactory();
-
-		return dbFactory.getSession(options).map(session -> new ReactiveMongoResourceHolder(session, dbFactory));
-	}
-
-	/**
-	 * @throws IllegalStateException if {@link #databaseFactory} is {@literal null}.
-	 */
-	private ReactiveMongoDatabaseFactory getRequiredDatabaseFactory() {
-
-		Assert.state(databaseFactory != null,
-				"ReactiveMongoTransactionManager operates upon a ReactiveMongoDatabaseFactory. Did you forget to provide one? It's required.");
-
-		return databaseFactory;
-	}
-
-	private static ReactiveMongoTransactionObject extractMongoTransaction(Object transaction) {
-
-		Assert.isInstanceOf(ReactiveMongoTransactionObject.class, transaction,
-				() -> String.format("Expected to find a %s but it turned out to be %s.", ReactiveMongoTransactionObject.class,
-						transaction.getClass()));
-
-		return (ReactiveMongoTransactionObject) transaction;
-	}
-
-	private static ReactiveMongoTransactionObject extractMongoTransaction(GenericReactiveTransaction status) {
-
-		Assert.isInstanceOf(ReactiveMongoTransactionObject.class, status.getTransaction(),
-				() -> String.format("Expected to find a %s but it turned out to be %s.", ReactiveMongoTransactionObject.class,
-						status.getTransaction().getClass()));
-
-		return (ReactiveMongoTransactionObject) status.getTransaction();
-	}
-
-	private static String debugString(@Nullable ClientSession session) {
-
-		if (session == null) {
-			return "null";
-		}
-
-		String debugString = String.format("[%s@%s ", ClassUtils.getShortName(session.getClass()),
-				Integer.toHexString(session.hashCode()));
-
-		try {
-			if (session.getServerSession() != null) {
-				debugString += String.format("id = %s, ", session.getServerSession().getIdentifier());
-				debugString += String.format("causallyConsistent = %s, ", session.isCausallyConsistent());
-				debugString += String.format("txActive = %s, ", session.hasActiveTransaction());
-				debugString += String.format("txNumber = %d, ", session.getServerSession().getTransactionNumber());
-				debugString += String.format("closed = %d, ", session.getServerSession().isClosed());
-				debugString += String.format("clusterTime = %s", session.getClusterTime());
-			} else {
-				debugString += "id = n/a";
-				debugString += String.format("causallyConsistent = %s, ", session.isCausallyConsistent());
-				debugString += String.format("txActive = %s, ", session.hasActiveTransaction());
-				debugString += String.format("clusterTime = %s", session.getClusterTime());
-			}
-		} catch (RuntimeException e) {
-			debugString += String.format("error = %s", e.getMessage());
-		}
-
-		debugString += "]";
-
-		return debugString;
-	}
-
-	/**
-	 * MongoDB specific transaction object, representing a {@link MongoResourceHolder}. Used as transaction object by
-	 * {@link ReactiveMongoTransactionManager}.
-	 *
-	 * @author Christoph Strobl
-	 * @author Mark Paluch
-	 * @since 2.2
-	 * @see ReactiveMongoResourceHolder
-	 */
-	protected static class ReactiveMongoTransactionObject implements SmartTransactionObject {
-
-		private @Nullable ReactiveMongoResourceHolder resourceHolder;
-
-		ReactiveMongoTransactionObject(@Nullable ReactiveMongoResourceHolder resourceHolder) {
-			this.resourceHolder = resourceHolder;
-		}
-
-		/**
-		 * Set the {@link MongoResourceHolder}.
-		 *
-		 * @param resourceHolder can be {@literal null}.
-		 */
-		void setResourceHolder(@Nullable ReactiveMongoResourceHolder resourceHolder) {
-			this.resourceHolder = resourceHolder;
-		}
-
-		/**
-		 * @return {@literal true} if a {@link MongoResourceHolder} is set.
-		 */
-		final boolean hasResourceHolder() {
-			return resourceHolder != null;
-		}
-
-		/**
-		 * Start a MongoDB transaction optionally given {@link TransactionOptions}.
-		 *
-		 * @param options can be {@literal null}
-		 */
-		void startTransaction(@Nullable TransactionOptions options) {
-
-			ClientSession session = getRequiredSession();
-			if (options != null) {
-				session.startTransaction(options);
-			} else {
-				session.startTransaction();
-			}
-		}
-
-		/**
-		 * Commit the transaction.
-		 */
-		public Mono<Void> commitTransaction() {
-			return Mono.from(getRequiredSession().commitTransaction());
-		}
-
-		/**
-		 * Rollback (abort) the transaction.
-		 */
-		public Mono<Void> abortTransaction() {
-			return Mono.from(getRequiredSession().abortTransaction());
-		}
-
-		/**
-		 * Close a {@link ClientSession} without regard to its transactional state.
-		 */
-		void closeSession() {
-
-			ClientSession session = getRequiredSession();
-			if (session.getServerSession() != null && !session.getServerSession().isClosed()) {
-				session.close();
-			}
-		}
-
-		@Nullable
-		public ClientSession getSession() {
-			return resourceHolder != null ? resourceHolder.getSession() : null;
-		}
-
-		private ReactiveMongoResourceHolder getRequiredResourceHolder() {
-
-			Assert.state(resourceHolder != null, "ReactiveMongoResourceHolder is required but not present. o_O");
-			return resourceHolder;
-		}
-
-		private ClientSession getRequiredSession() {
-
-			ClientSession session = getSession();
-			Assert.state(session != null, "A Session is required but it turned out to be null.");
-			return session;
-		}
-
-		/* 
-		 * (non-Javadoc)
-		 * @see org.springframework.transaction.support.SmartTransactionObject#isRollbackOnly()
-		 */
-		@Override
-		public boolean isRollbackOnly() {
-			return this.resourceHolder != null && this.resourceHolder.isRollbackOnly();
-		}
-
-		/* 
-		 * (non-Javadoc)
-		 * @see org.springframework.transaction.support.SmartTransactionObject#flush()
-		 */
-		@Override
-		public void flush() {
-			throw new UnsupportedOperationException("flush() not supported");
-		}
-	}
-}

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/SessionAwareMethodInterceptor.java

@@ -1,215 +0,0 @@
-/*
- * Copyright 2018-2020 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.springframework.data.mongodb;
-
-import java.lang.reflect.Method;
-import java.lang.reflect.Proxy;
-import java.util.Optional;
-import java.util.function.BiFunction;
-
-import org.aopalliance.intercept.MethodInterceptor;
-import org.aopalliance.intercept.MethodInvocation;
-import org.springframework.core.MethodClassKey;
-import org.springframework.lang.Nullable;
-import org.springframework.util.Assert;
-import org.springframework.util.ClassUtils;
-import org.springframework.util.ConcurrentReferenceHashMap;
-import org.springframework.util.ReflectionUtils;
-
-import com.mongodb.WriteConcern;
-import com.mongodb.session.ClientSession;
-
-/**
- * {@link MethodInterceptor} implementation looking up and invoking an alternative target method having
- * {@link ClientSession} as its first argument. This allows seamless integration with the existing code base.
- * <p />
- * The {@link MethodInterceptor} is aware of methods on {@code MongoCollection} that my return new instances of itself
- * like (eg. {@link com.mongodb.reactivestreams.client.MongoCollection#withWriteConcern(WriteConcern)} and decorate them
- * if not already proxied.
- *
- * @param <D> Type of the actual Mongo Database.
- * @param <C> Type of the actual Mongo Collection.
- * @author Christoph Strobl
- * @author Mark Paluch
- * @since 2.1
- */
-public class SessionAwareMethodInterceptor<D, C> implements MethodInterceptor {
-
-	private static final MethodCache METHOD_CACHE = new MethodCache();
-
-	private final ClientSession session;
-	private final ClientSessionOperator collectionDecorator;
-	private final ClientSessionOperator databaseDecorator;
-	private final Object target;
-	private final Class<?> targetType;
-	private final Class<?> collectionType;
-	private final Class<?> databaseType;
-	private final Class<? extends ClientSession> sessionType;
-
-	/**
-	 * Create a new SessionAwareMethodInterceptor for given target.
-	 *
-	 * @param session the {@link ClientSession} to be used on invocation.
-	 * @param target the original target object.
-	 * @param databaseType the MongoDB database type
-	 * @param databaseDecorator a {@link ClientSessionOperator} used to create the proxy for an imperative / reactive
-	 *          {@code MongoDatabase}.
-	 * @param collectionType the MongoDB collection type.
-	 * @param collectionDecorator a {@link ClientSessionOperator} used to create the proxy for an imperative / reactive
-	 *          {@code MongoCollection}.
-	 * @param <T> target object type.
-	 */
-	public <T> SessionAwareMethodInterceptor(ClientSession session, T target, Class<? extends ClientSession> sessionType,
-			Class<D> databaseType, ClientSessionOperator<D> databaseDecorator, Class<C> collectionType,
-			ClientSessionOperator<C> collectionDecorator) {
-
-		Assert.notNull(session, "ClientSession must not be null!");
-		Assert.notNull(target, "Target must not be null!");
-		Assert.notNull(sessionType, "SessionType must not be null!");
-		Assert.notNull(databaseType, "Database type must not be null!");
-		Assert.notNull(databaseDecorator, "Database ClientSessionOperator must not be null!");
-		Assert.notNull(collectionType, "Collection type must not be null!");
-		Assert.notNull(collectionDecorator, "Collection ClientSessionOperator must not be null!");
-
-		this.session = session;
-		this.target = target;
-		this.databaseType = ClassUtils.getUserClass(databaseType);
-		this.collectionType = ClassUtils.getUserClass(collectionType);
-		this.collectionDecorator = collectionDecorator;
-		this.databaseDecorator = databaseDecorator;
-
-		this.targetType = ClassUtils.isAssignable(databaseType, target.getClass()) ? databaseType : collectionType;
-		this.sessionType = sessionType;
-	}
-
-	/*
-	 * (non-Javadoc)
-	 * @see org.aopalliance.intercept.MethodInterceptor(org.aopalliance.intercept.MethodInvocation)
-	 */
-	@Nullable
-	@Override
-	public Object invoke(MethodInvocation methodInvocation) throws Throwable {
-
-		if (requiresDecoration(methodInvocation.getMethod())) {
-
-			Object target = methodInvocation.proceed();
-			if (target instanceof Proxy) {
-				return target;
-			}
-
-			return decorate(target);
-		}
-
-		if (!requiresSession(methodInvocation.getMethod())) {
-			return methodInvocation.proceed();
-		}
-
-		Optional<Method> targetMethod = METHOD_CACHE.lookup(methodInvocation.getMethod(), targetType, sessionType);
-
-		return !targetMethod.isPresent() ? methodInvocation.proceed()
-				: ReflectionUtils.invokeMethod(targetMethod.get(), target,
-						prependSessionToArguments(session, methodInvocation));
-	}
-
-	private boolean requiresDecoration(Method method) {
-
-		return ClassUtils.isAssignable(databaseType, method.getReturnType())
-				|| ClassUtils.isAssignable(collectionType, method.getReturnType());
-	}
-
-	@SuppressWarnings("unchecked")
-	protected Object decorate(Object target) {
-
-		return ClassUtils.isAssignable(databaseType, target.getClass()) ? databaseDecorator.apply(session, target)
-				: collectionDecorator.apply(session, target);
-	}
-
-	private static boolean requiresSession(Method method) {
-
-		if (method.getParameterCount() == 0
-				|| !ClassUtils.isAssignable(ClientSession.class, method.getParameterTypes()[0])) {
-			return true;
-		}
-
-		return false;
-	}
-
-	private static Object[] prependSessionToArguments(ClientSession session, MethodInvocation invocation) {
-
-		Object[] args = new Object[invocation.getArguments().length + 1];
-
-		args[0] = session;
-		System.arraycopy(invocation.getArguments(), 0, args, 1, invocation.getArguments().length);
-
-		return args;
-	}
-
-	/**
-	 * Simple {@link Method} to {@link Method} caching facility for {@link ClientSession} overloaded targets.
-	 *
-	 * @since 2.1
-	 * @author Christoph Strobl
-	 */
-	static class MethodCache {
-
-		private final ConcurrentReferenceHashMap<MethodClassKey, Optional<Method>> cache = new ConcurrentReferenceHashMap<>();
-
-		/**
-		 * Lookup the target {@link Method}.
-		 *
-		 * @param method
-		 * @param targetClass
-		 * @return
-		 */
-		Optional<Method> lookup(Method method, Class<?> targetClass, Class<? extends ClientSession> sessionType) {
-
-			return cache.computeIfAbsent(new MethodClassKey(method, targetClass),
-					val -> Optional.ofNullable(findTargetWithSession(method, targetClass, sessionType)));
-		}
-
-		@Nullable
-		private Method findTargetWithSession(Method sourceMethod, Class<?> targetType,
-				Class<? extends ClientSession> sessionType) {
-
-			Class<?>[] argTypes = sourceMethod.getParameterTypes();
-			Class<?>[] args = new Class<?>[argTypes.length + 1];
-			args[0] = sessionType;
-			System.arraycopy(argTypes, 0, args, 1, argTypes.length);
-
-			return ReflectionUtils.findMethod(targetType, sourceMethod.getName(), args);
-		}
-
-		/**
-		 * Check whether the cache contains an entry for {@link Method} and {@link Class}.
-		 *
-		 * @param method
-		 * @param targetClass
-		 * @return
-		 */
-		boolean contains(Method method, Class<?> targetClass) {
-			return cache.containsKey(new MethodClassKey(method, targetClass));
-		}
-	}
-
-	/**
-	 * Represents an operation upon two operands of the same type, producing a result of the same type as the operands
-	 * accepting {@link ClientSession}. This is a specialization of {@link BiFunction} for the case where the operands and
-	 * the result are all of the same type.
-	 *
-	 * @param <T> the type of the operands and result of the operator
-	 */
-	public interface ClientSessionOperator<T> extends BiFunction<ClientSession, T, T> {}
-}

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/SessionSynchronization.java

@@ -1,38 +0,0 @@
-/*
- * Copyright 2018-2020 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.springframework.data.mongodb;
-
-/**
- * {@link SessionSynchronization} is used along with {@link org.springframework.data.mongodb.core.MongoTemplate} to
- * define in which type of transactions to participate if any.
- *
- * @author Christoph Strobl
- * @author Mark Paluch
- * @since 2.1
- */
-public enum SessionSynchronization {
-
-	/**
-	 * Synchronize with any transaction even with empty transactions and initiate a MongoDB transaction when doing so by
-	 * registering a MongoDB specific {@link org.springframework.transaction.support.ResourceHolderSynchronization}.
-	 */
-	ALWAYS,
-
-	/**
-	 * Synchronize with native MongoDB transactions initiated via {@link MongoTransactionManager}.
-	 */
-	ON_ACTUAL_TRANSACTION;
-}

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/UncategorizedMongoDbException.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2020 the original author or authors.
+ * Copyright 2010-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/AbstractMongoClientConfiguration.java

@@ -1,112 +0,0 @@
-/*
- * Copyright 2018-2020 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.springframework.data.mongodb.config;
-
-import org.springframework.context.annotation.Bean;
-import org.springframework.context.annotation.Configuration;
-import org.springframework.data.mongodb.MongoDbFactory;
-import org.springframework.data.mongodb.core.MongoTemplate;
-import org.springframework.data.mongodb.core.SimpleMongoClientDbFactory;
-import org.springframework.data.mongodb.core.SimpleMongoDbFactory;
-import org.springframework.data.mongodb.core.convert.DbRefResolver;
-import org.springframework.data.mongodb.core.convert.DefaultDbRefResolver;
-import org.springframework.data.mongodb.core.convert.MappingMongoConverter;
-import org.springframework.data.mongodb.core.mapping.Document;
-import org.springframework.lang.Nullable;
-
-import com.mongodb.client.MongoClient;
-
-/**
- * Base class for Spring Data MongoDB configuration using JavaConfig with {@link com.mongodb.client.MongoClient}.
- *
- * @author Christoph Strobl
- * @since 2.1
- * @see MongoConfigurationSupport
- * @see AbstractMongoConfiguration
- */
-@Configuration
-public abstract class AbstractMongoClientConfiguration extends MongoConfigurationSupport {
-
-	/**
-	 * Return the {@link MongoClient} instance to connect to. Annotate with {@link Bean} in case you want to expose a
-	 * {@link MongoClient} instance to the {@link org.springframework.context.ApplicationContext}.
-	 *
-	 * @return
-	 */
-	public abstract MongoClient mongoClient();
-
-	/**
-	 * Creates a {@link MongoTemplate}.
-	 *
-	 * @return
-	 */
-	@Bean
-	public MongoTemplate mongoTemplate() throws Exception {
-		return new MongoTemplate(mongoDbFactory(), mappingMongoConverter());
-	}
-
-	/**
-	 * Creates a {@link SimpleMongoDbFactory} to be used by the {@link MongoTemplate}. Will use the {@link MongoClient}
-	 * instance configured in {@link #mongoClient()}.
-	 *
-	 * @see #mongoClient()
-	 * @see #mongoTemplate()
-	 * @return
-	 */
-	@Bean
-	public MongoDbFactory mongoDbFactory() {
-		return new SimpleMongoClientDbFactory(mongoClient(), getDatabaseName());
-	}
-
-	/**
-	 * Return the base package to scan for mapped {@link Document}s. Will return the package name of the configuration
-	 * class' (the concrete class, not this one here) by default. So if you have a {@code com.acme.AppConfig} extending
-	 * {@link AbstractMongoClientConfiguration} the base package will be considered {@code com.acme} unless the method is
-	 * overridden to implement alternate behavior.
-	 *
-	 * @return the base package to scan for mapped {@link Document} classes or {@literal null} to not enable scanning for
-	 *         entities.
-	 * @deprecated use {@link #getMappingBasePackages()} instead.
-	 */
-	@Deprecated
-	@Nullable
-	protected String getMappingBasePackage() {
-
-		Package mappingBasePackage = getClass().getPackage();
-		return mappingBasePackage == null ? null : mappingBasePackage.getName();
-	}
-
-	/**
-	 * Creates a {@link MappingMongoConverter} using the configured {@link #mongoDbFactory()} and
-	 * {@link #mongoMappingContext()}. Will get {@link #customConversions()} applied.
-	 *
-	 * @see #customConversions()
-	 * @see #mongoMappingContext()
-	 * @see #mongoDbFactory()
-	 * @return
-	 * @throws Exception
-	 */
-	@Bean
-	public MappingMongoConverter mappingMongoConverter() throws Exception {
-
-		DbRefResolver dbRefResolver = new DefaultDbRefResolver(mongoDbFactory());
-		MappingMongoConverter converter = new MappingMongoConverter(dbRefResolver, mongoMappingContext());
-		converter.setCustomConversions(customConversions());
-		converter.setCodecRegistryProvider(mongoDbFactory());
-
-		return converter;
-	}
-}

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/AbstractMongoConfiguration.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2020 the original author or authors.
+ * Copyright 2011-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,51 +15,86 @@
  */
 package org.springframework.data.mongodb.config;
 
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.Set;
+
+import org.springframework.beans.factory.config.BeanDefinition;
 import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider;
 import org.springframework.context.annotation.Configuration;
+import org.springframework.core.convert.converter.Converter;
+import org.springframework.core.type.filter.AnnotationTypeFilter;
+import org.springframework.data.annotation.Persistent;
+import org.springframework.data.authentication.UserCredentials;
+import org.springframework.data.mapping.context.MappingContextIsNewStrategyFactory;
+import org.springframework.data.mapping.model.CamelCaseAbbreviatingFieldNamingStrategy;
+import org.springframework.data.mapping.model.FieldNamingStrategy;
+import org.springframework.data.mapping.model.PropertyNameFieldNamingStrategy;
 import org.springframework.data.mongodb.MongoDbFactory;
 import org.springframework.data.mongodb.core.MongoTemplate;
 import org.springframework.data.mongodb.core.SimpleMongoDbFactory;
+import org.springframework.data.mongodb.core.convert.CustomConversions;
 import org.springframework.data.mongodb.core.convert.DbRefResolver;
 import org.springframework.data.mongodb.core.convert.DefaultDbRefResolver;
 import org.springframework.data.mongodb.core.convert.MappingMongoConverter;
 import org.springframework.data.mongodb.core.mapping.Document;
-import org.springframework.lang.Nullable;
+import org.springframework.data.mongodb.core.mapping.MongoMappingContext;
+import org.springframework.data.support.CachingIsNewStrategyFactory;
+import org.springframework.data.support.IsNewStrategyFactory;
+import org.springframework.util.ClassUtils;
+import org.springframework.util.StringUtils;
 
+import com.mongodb.Mongo;
 import com.mongodb.MongoClient;
 
 /**
- * Base class for Spring Data MongoDB configuration using JavaConfig with {@link com.mongodb.MongoClient}.
- * <p />
- * <strong>INFO:</strong>In case you want to use {@link com.mongodb.client.MongoClients} for configuration please refer
- * to {@link AbstractMongoClientConfiguration}.
- *
+ * Base class for Spring Data MongoDB configuration using JavaConfig.
+ * 
  * @author Mark Pollack
  * @author Oliver Gierke
  * @author Thomas Darimont
  * @author Ryan Tenney
  * @author Christoph Strobl
- * @author Mark Paluch
- * @see MongoConfigurationSupport
- * @see AbstractMongoClientConfiguration
- * @deprecated since 2.2 in favor of {@link AbstractMongoClientConfiguration}.
  */
 @Configuration
-@Deprecated
-public abstract class AbstractMongoConfiguration extends MongoConfigurationSupport {
+public abstract class AbstractMongoConfiguration {
 
 	/**
-	 * Return the {@link MongoClient} instance to connect to. Annotate with {@link Bean} in case you want to expose a
-	 * {@link MongoClient} instance to the {@link org.springframework.context.ApplicationContext}.
-	 *
-	 * @return
+	 * Return the name of the database to connect to.
+	 * 
+	 * @return must not be {@literal null}.
 	 */
-	public abstract MongoClient mongoClient();
+	protected abstract String getDatabaseName();
+
+	/**
+	 * Return the name of the authentication database to use. Defaults to {@literal null} and will turn into the value
+	 * returned by {@link #getDatabaseName()} later on effectively.
+	 * 
+	 * @return
+	 * @deprecated since 1.7. {@link MongoClient} should hold authentication data within
+	 *             {@link MongoClient#getCredentialsList()}
+	 */
+	@Deprecated
+	protected String getAuthenticationDatabaseName() {
+		return null;
+	}
+
+	/**
+	 * Return the {@link Mongo} instance to connect to. Annotate with {@link Bean} in case you want to expose a
+	 * {@link Mongo} instance to the {@link org.springframework.context.ApplicationContext}.
+	 * 
+	 * @return
+	 * @throws Exception
+	 */
+	public abstract Mongo mongo() throws Exception;
 
 	/**
 	 * Creates a {@link MongoTemplate}.
-	 *
+	 * 
 	 * @return
+	 * @throws Exception
 	 */
 	@Bean
 	public MongoTemplate mongoTemplate() throws Exception {
@@ -67,16 +102,17 @@ public abstract class AbstractMongoConfiguration extends MongoConfigurationSuppo
 	}
 
 	/**
-	 * Creates a {@link SimpleMongoDbFactory} to be used by the {@link MongoTemplate}. Will use the {@link MongoClient}
-	 * instance configured in {@link #mongoClient()}.
-	 *
-	 * @see #mongoClient()
+	 * Creates a {@link SimpleMongoDbFactory} to be used by the {@link MongoTemplate}. Will use the {@link Mongo} instance
+	 * configured in {@link #mongo()}.
+	 * 
+	 * @see #mongo()
 	 * @see #mongoTemplate()
 	 * @return
+	 * @throws Exception
 	 */
 	@Bean
-	public MongoDbFactory mongoDbFactory() {
-		return new SimpleMongoDbFactory(mongoClient(), getDatabaseName());
+	public MongoDbFactory mongoDbFactory() throws Exception {
+		return new SimpleMongoDbFactory(mongo(), getDatabaseName(), getUserCredentials(), getAuthenticationDatabaseName());
 	}
 
 	/**
@@ -84,23 +120,90 @@ public abstract class AbstractMongoConfiguration extends MongoConfigurationSuppo
 	 * class' (the concrete class, not this one here) by default. So if you have a {@code com.acme.AppConfig} extending
 	 * {@link AbstractMongoConfiguration} the base package will be considered {@code com.acme} unless the method is
 	 * overridden to implement alternate behavior.
-	 *
+	 * 
 	 * @return the base package to scan for mapped {@link Document} classes or {@literal null} to not enable scanning for
 	 *         entities.
 	 * @deprecated use {@link #getMappingBasePackages()} instead.
 	 */
 	@Deprecated
-	@Nullable
 	protected String getMappingBasePackage() {
 
 		Package mappingBasePackage = getClass().getPackage();
 		return mappingBasePackage == null ? null : mappingBasePackage.getName();
 	}
 
+	/**
+	 * Returns the base packages to scan for MongoDB mapped entities at startup. Will return the package name of the
+	 * configuration class' (the concrete class, not this one here) by default. So if you have a
+	 * {@code com.acme.AppConfig} extending {@link AbstractMongoConfiguration} the base package will be considered
+	 * {@code com.acme} unless the method is overridden to implement alternate behavior.
+	 * 
+	 * @return the base packages to scan for mapped {@link Document} classes or an empty collection to not enable scanning
+	 *         for entities.
+	 * @since 1.10
+	 */
+	protected Collection<String> getMappingBasePackages() {
+		return Collections.singleton(getMappingBasePackage());
+	}
+
+	/**
+	 * Return {@link UserCredentials} to be used when connecting to the MongoDB instance or {@literal null} if none shall
+	 * be used.
+	 * 
+	 * @return
+	 * @deprecated since 1.7. {@link MongoClient} should hold authentication data within
+	 *             {@link MongoClient#getCredentialsList()}
+	 */
+	@Deprecated
+	protected UserCredentials getUserCredentials() {
+		return null;
+	}
+
+	/**
+	 * Creates a {@link MongoMappingContext} equipped with entity classes scanned from the mapping base package.
+	 * 
+	 * @see #getMappingBasePackage()
+	 * @return
+	 * @throws ClassNotFoundException
+	 */
+	@Bean
+	public MongoMappingContext mongoMappingContext() throws ClassNotFoundException {
+
+		MongoMappingContext mappingContext = new MongoMappingContext();
+		mappingContext.setInitialEntitySet(getInitialEntitySet());
+		mappingContext.setSimpleTypeHolder(customConversions().getSimpleTypeHolder());
+		mappingContext.setFieldNamingStrategy(fieldNamingStrategy());
+
+		return mappingContext;
+	}
+
+	/**
+	 * Returns a {@link MappingContextIsNewStrategyFactory} wrapped into a {@link CachingIsNewStrategyFactory}.
+	 * 
+	 * @return
+	 * @throws ClassNotFoundException
+	 */
+	@Bean
+	public IsNewStrategyFactory isNewStrategyFactory() throws ClassNotFoundException {
+		return new CachingIsNewStrategyFactory(new MappingContextIsNewStrategyFactory(mongoMappingContext()));
+	}
+
+	/**
+	 * Register custom {@link Converter}s in a {@link CustomConversions} object if required. These
+	 * {@link CustomConversions} will be registered with the {@link #mappingMongoConverter()} and
+	 * {@link #mongoMappingContext()}. Returns an empty {@link CustomConversions} instance by default.
+	 * 
+	 * @return must not be {@literal null}.
+	 */
+	@Bean
+	public CustomConversions customConversions() {
+		return new CustomConversions(Collections.emptyList());
+	}
+
 	/**
 	 * Creates a {@link MappingMongoConverter} using the configured {@link #mongoDbFactory()} and
 	 * {@link #mongoMappingContext()}. Will get {@link #customConversions()} applied.
-	 *
+	 * 
 	 * @see #customConversions()
 	 * @see #mongoMappingContext()
 	 * @see #mongoDbFactory()
@@ -113,9 +216,82 @@ public abstract class AbstractMongoConfiguration extends MongoConfigurationSuppo
 		DbRefResolver dbRefResolver = new DefaultDbRefResolver(mongoDbFactory());
 		MappingMongoConverter converter = new MappingMongoConverter(dbRefResolver, mongoMappingContext());
 		converter.setCustomConversions(customConversions());
-		converter.setCodecRegistryProvider(mongoDbFactory());
 
 		return converter;
 	}
 
+	/**
+	 * Scans the mapping base package for classes annotated with {@link Document}. By default, it scans for entities in
+	 * all packages returned by {@link #getMappingBasePackages()}.
+	 * 
+	 * @see #getMappingBasePackages()
+	 * @return
+	 * @throws ClassNotFoundException
+	 */
+	protected Set<Class<?>> getInitialEntitySet() throws ClassNotFoundException {
+
+		Set<Class<?>> initialEntitySet = new HashSet<Class<?>>();
+
+		for (String basePackage : getMappingBasePackages()) {
+			initialEntitySet.addAll(scanForEntities(basePackage));
+		}
+
+		return initialEntitySet;
+	}
+
+	/**
+	 * Scans the given base package for entities, i.e. MongoDB specific types annotated with {@link Document} and
+	 * {@link Persistent}.
+	 * 
+	 * @param basePackage must not be {@literal null}.
+	 * @return
+	 * @throws ClassNotFoundException
+	 * @since 1.10
+	 */
+	protected Set<Class<?>> scanForEntities(String basePackage) throws ClassNotFoundException {
+
+		if (!StringUtils.hasText(basePackage)) {
+			return Collections.emptySet();
+		}
+
+		Set<Class<?>> initialEntitySet = new HashSet<Class<?>>();
+
+		if (StringUtils.hasText(basePackage)) {
+
+			ClassPathScanningCandidateComponentProvider componentProvider = new ClassPathScanningCandidateComponentProvider(
+					false);
+			componentProvider.addIncludeFilter(new AnnotationTypeFilter(Document.class));
+			componentProvider.addIncludeFilter(new AnnotationTypeFilter(Persistent.class));
+
+			for (BeanDefinition candidate : componentProvider.findCandidateComponents(basePackage)) {
+
+				initialEntitySet
+						.add(ClassUtils.forName(candidate.getBeanClassName(), AbstractMongoConfiguration.class.getClassLoader()));
+			}
+		}
+
+		return initialEntitySet;
+	}
+
+	/**
+	 * Configures whether to abbreviate field names for domain objects by configuring a
+	 * {@link CamelCaseAbbreviatingFieldNamingStrategy} on the {@link MongoMappingContext} instance created. For advanced
+	 * customization needs, consider overriding {@link #mappingMongoConverter()}.
+	 * 
+	 * @return
+	 */
+	protected boolean abbreviateFieldNames() {
+		return false;
+	}
+
+	/**
+	 * Configures a {@link FieldNamingStrategy} on the {@link MongoMappingContext} instance created.
+	 * 
+	 * @return
+	 * @since 1.5
+	 */
+	protected FieldNamingStrategy fieldNamingStrategy() {
+		return abbreviateFieldNames() ? new CamelCaseAbbreviatingFieldNamingStrategy()
+				: PropertyNameFieldNamingStrategy.INSTANCE;
+	}
 }

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/AbstractReactiveMongoConfiguration.java

@@ -1,90 +0,0 @@
-/*
- * Copyright 2016-2020 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.springframework.data.mongodb.config;
-
-import org.springframework.context.annotation.Bean;
-import org.springframework.context.annotation.Configuration;
-import org.springframework.data.mongodb.ReactiveMongoDatabaseFactory;
-import org.springframework.data.mongodb.core.ReactiveMongoOperations;
-import org.springframework.data.mongodb.core.ReactiveMongoTemplate;
-import org.springframework.data.mongodb.core.SimpleReactiveMongoDatabaseFactory;
-import org.springframework.data.mongodb.core.convert.MappingMongoConverter;
-import org.springframework.data.mongodb.core.convert.NoOpDbRefResolver;
-
-import com.mongodb.reactivestreams.client.MongoClient;
-
-/**
- * Base class for reactive Spring Data MongoDB configuration using JavaConfig.
- *
- * @author Mark Paluch
- * @author Christoph Strobl
- * @since 2.0
- * @see MongoConfigurationSupport
- */
-@Configuration
-public abstract class AbstractReactiveMongoConfiguration extends MongoConfigurationSupport {
-
-	/**
-	 * Return the Reactive Streams {@link MongoClient} instance to connect to. Annotate with {@link Bean} in case you want
-	 * to expose a {@link MongoClient} instance to the {@link org.springframework.context.ApplicationContext}.
-	 *
-	 * @return never {@literal null}.
-	 */
-	public abstract MongoClient reactiveMongoClient();
-
-	/**
-	 * Creates {@link ReactiveMongoOperations}.
-	 *
-	 * @return never {@literal null}.
-	 */
-	@Bean
-	public ReactiveMongoOperations reactiveMongoTemplate() throws Exception {
-		return new ReactiveMongoTemplate(reactiveMongoDbFactory(), mappingMongoConverter());
-	}
-
-	/**
-	 * Creates a {@link ReactiveMongoDatabaseFactory} to be used by the {@link ReactiveMongoOperations}. Will use the
-	 * {@link MongoClient} instance configured in {@link #reactiveMongoClient()}.
-	 *
-	 * @see #reactiveMongoClient()
-	 * @see #reactiveMongoTemplate()
-	 * @return never {@literal null}.
-	 */
-	@Bean
-	public ReactiveMongoDatabaseFactory reactiveMongoDbFactory() {
-		return new SimpleReactiveMongoDatabaseFactory(reactiveMongoClient(), getDatabaseName());
-	}
-
-	/**
-	 * Creates a {@link MappingMongoConverter} using the configured {@link #reactiveMongoDbFactory()} and
-	 * {@link #mongoMappingContext()}. Will get {@link #customConversions()} applied.
-	 *
-	 * @see #customConversions()
-	 * @see #mongoMappingContext()
-	 * @see #reactiveMongoDbFactory()
-	 * @return never {@literal null}.
-	 * @throws Exception
-	 */
-	@Bean
-	public MappingMongoConverter mappingMongoConverter() throws Exception {
-
-		MappingMongoConverter converter = new MappingMongoConverter(NoOpDbRefResolver.INSTANCE, mongoMappingContext());
-		converter.setCustomConversions(customConversions());
-		converter.setCodecRegistryProvider(reactiveMongoDbFactory());
-
-		return converter;
-	}
-}

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/BeanNames.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2020 the original author or authors.
+ * Copyright 2011-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -17,18 +17,17 @@ package org.springframework.data.mongodb.config;
 
 /**
  * Constants to declare bean names used by the namespace configuration.
- *
+ * 
  * @author Jon Brisbin
  * @author Oliver Gierke
  * @author Martin Baumgartner
- * @author Christoph Strobl
  */
 public abstract class BeanNames {
 
 	public static final String MAPPING_CONTEXT_BEAN_NAME = "mongoMappingContext";
 
 	static final String INDEX_HELPER_BEAN_NAME = "indexCreationHelper";
-	static final String MONGO_BEAN_NAME = "mongoClient";
+	static final String MONGO_BEAN_NAME = "mongo";
 	static final String DB_FACTORY_BEAN_NAME = "mongoDbFactory";
 	static final String VALIDATING_EVENT_LISTENER_BEAN_NAME = "validatingMongoEventListener";
 	static final String IS_NEW_STRATEGY_FACTORY_BEAN_NAME = "isNewStrategyFactory";

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/EnableMongoAuditing.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -28,7 +28,7 @@ import org.springframework.data.domain.AuditorAware;
 
 /**
  * Annotation to enable auditing in MongoDB via annotation configuration.
- *
+ * 
  * @author Thomas Darimont
  * @author Oliver Gierke
  */
@@ -41,21 +41,21 @@ public @interface EnableMongoAuditing {
 
 	/**
 	 * Configures the {@link AuditorAware} bean to be used to lookup the current principal.
-	 *
+	 * 
 	 * @return
 	 */
 	String auditorAwareRef() default "";
 
 	/**
 	 * Configures whether the creation and modification dates are set. Defaults to {@literal true}.
-	 *
+	 * 
 	 * @return
 	 */
 	boolean setDates() default true;
 
 	/**
 	 * Configures whether the entity shall be marked as modified on creation. Defaults to {@literal true}.
-	 *
+	 * 
 	 * @return
 	 */
 	boolean modifyOnCreate() default true;
@@ -63,7 +63,7 @@ public @interface EnableMongoAuditing {
 	/**
 	 * Configures a {@link DateTimeProvider} bean name that allows customizing the {@link org.joda.time.DateTime} to be
 	 * used for setting creation and modification dates.
-	 *
+	 * 
 	 * @return
 	 */
 	String dateTimeProviderRef() default "";

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/GridFsTemplateParser.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -29,7 +29,7 @@ import org.w3c.dom.Element;
 
 /**
  * {@link BeanDefinitionParser} to parse {@code gridFsTemplate} elements into {@link BeanDefinition}s.
- *
+ * 
  * @author Martin Baumgartner
  */
 class GridFsTemplateParser extends AbstractBeanDefinitionParser {

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/MappingMongoConverterParser.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2020 the original author or authors.
+ * Copyright 2011-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -51,15 +51,14 @@ import org.springframework.core.type.filter.AssignableTypeFilter;
 import org.springframework.core.type.filter.TypeFilter;
 import org.springframework.data.annotation.Persistent;
 import org.springframework.data.config.BeanComponentDefinitionBuilder;
+import org.springframework.data.mapping.context.MappingContextIsNewStrategyFactory;
 import org.springframework.data.mapping.model.CamelCaseAbbreviatingFieldNamingStrategy;
+import org.springframework.data.mongodb.core.convert.CustomConversions;
 import org.springframework.data.mongodb.core.convert.MappingMongoConverter;
-import org.springframework.data.mongodb.core.convert.MongoCustomConversions;
-import org.springframework.data.mongodb.core.convert.QueryMapper;
 import org.springframework.data.mongodb.core.index.MongoPersistentEntityIndexCreator;
 import org.springframework.data.mongodb.core.mapping.Document;
 import org.springframework.data.mongodb.core.mapping.MongoMappingContext;
 import org.springframework.data.mongodb.core.mapping.event.ValidatingMongoEventListener;
-import org.springframework.lang.Nullable;
 import org.springframework.util.Assert;
 import org.springframework.util.ClassUtils;
 import org.springframework.util.StringUtils;
@@ -68,14 +67,12 @@ import org.w3c.dom.Element;
 
 /**
  * Bean definition parser for the {@code mapping-converter} element.
- *
+ * 
  * @author Jon Brisbin
  * @author Oliver Gierke
  * @author Maciej Walkowiak
  * @author Thomas Darimont
  * @author Christoph Strobl
- * @author Mark Paluch
- * @author Zied Yaich
  */
 public class MappingMongoConverterParser implements BeanDefinitionParser {
 
@@ -101,6 +98,8 @@ public class MappingMongoConverterParser implements BeanDefinitionParser {
 		BeanDefinition conversionsDefinition = getCustomConversions(element, parserContext);
 		String ctxRef = potentiallyCreateMappingContext(element, parserContext, conversionsDefinition, id);
 
+		createIsNewStrategyFactoryBeanDefinition(ctxRef, parserContext, element);
+
 		// Need a reference to a Mongo instance
 		String dbFactoryRef = element.getAttribute("db-factory-ref");
 		if (!StringUtils.hasText(dbFactoryRef)) {
@@ -121,36 +120,27 @@ public class MappingMongoConverterParser implements BeanDefinitionParser {
 			converterBuilder.addPropertyValue("customConversions", conversionsDefinition);
 		}
 
-		if (!registry.containsBeanDefinition("indexOperationsProvider")) {
-
-			BeanDefinitionBuilder indexOperationsProviderBuilder = BeanDefinitionBuilder
-					.genericBeanDefinition("org.springframework.data.mongodb.core.DefaultIndexOperationsProvider");
-			indexOperationsProviderBuilder.addConstructorArgReference(dbFactoryRef);
-			indexOperationsProviderBuilder.addConstructorArgValue(BeanDefinitionBuilder
-					.genericBeanDefinition(QueryMapper.class).addConstructorArgReference(id).getBeanDefinition());
-			parserContext.registerBeanComponent(
-					new BeanComponentDefinition(indexOperationsProviderBuilder.getBeanDefinition(), "indexOperationsProvider"));
-		}
-
 		try {
 			registry.getBeanDefinition(INDEX_HELPER_BEAN_NAME);
 		} catch (NoSuchBeanDefinitionException ignored) {
-
+			if (!StringUtils.hasText(dbFactoryRef)) {
+				dbFactoryRef = DB_FACTORY_BEAN_NAME;
+			}
 			BeanDefinitionBuilder indexHelperBuilder = BeanDefinitionBuilder
 					.genericBeanDefinition(MongoPersistentEntityIndexCreator.class);
 			indexHelperBuilder.addConstructorArgReference(ctxRef);
-			indexHelperBuilder.addConstructorArgReference("indexOperationsProvider");
+			indexHelperBuilder.addConstructorArgReference(dbFactoryRef);
 			indexHelperBuilder.addDependsOn(ctxRef);
 
-			parserContext.registerBeanComponent(
-					new BeanComponentDefinition(indexHelperBuilder.getBeanDefinition(), INDEX_HELPER_BEAN_NAME));
+			parserContext.registerBeanComponent(new BeanComponentDefinition(indexHelperBuilder.getBeanDefinition(),
+					INDEX_HELPER_BEAN_NAME));
 		}
 
 		BeanDefinition validatingMongoEventListener = potentiallyCreateValidatingMongoEventListener(element, parserContext);
 
 		if (validatingMongoEventListener != null) {
-			parserContext.registerBeanComponent(
-					new BeanComponentDefinition(validatingMongoEventListener, VALIDATING_EVENT_LISTENER_BEAN_NAME));
+			parserContext.registerBeanComponent(new BeanComponentDefinition(validatingMongoEventListener,
+					VALIDATING_EVENT_LISTENER_BEAN_NAME));
 		}
 
 		parserContext.registerBeanComponent(new BeanComponentDefinition(converterBuilder.getBeanDefinition(), id));
@@ -158,7 +148,6 @@ public class MappingMongoConverterParser implements BeanDefinitionParser {
 		return null;
 	}
 
-	@Nullable
 	private BeanDefinition potentiallyCreateValidatingMongoEventListener(Element element, ParserContext parserContext) {
 
 		String disableValidation = element.getAttribute("disable-validation");
@@ -180,7 +169,6 @@ public class MappingMongoConverterParser implements BeanDefinitionParser {
 		return null;
 	}
 
-	@Nullable
 	private RuntimeBeanReference getValidator(Object source, ParserContext parserContext) {
 
 		if (!JSR_303_PRESENT) {
@@ -198,7 +186,7 @@ public class MappingMongoConverterParser implements BeanDefinitionParser {
 	}
 
 	public static String potentiallyCreateMappingContext(Element element, ParserContext parserContext,
-			@Nullable BeanDefinition conversionsDefinition, @Nullable String converterId) {
+			BeanDefinition conversionsDefinition, String converterId) {
 
 		String ctxRef = element.getAttribute("mapping-context-ref");
 
@@ -212,7 +200,7 @@ public class MappingMongoConverterParser implements BeanDefinitionParser {
 		BeanDefinitionBuilder mappingContextBuilder = BeanDefinitionBuilder
 				.genericBeanDefinition(MongoMappingContext.class);
 
-		Set<String> classesToAdd = getInitialEntityClasses(element);
+		Set<String> classesToAdd = getInititalEntityClasses(element);
 
 		if (classesToAdd != null) {
 			mappingContextBuilder.addPropertyValue("initialEntitySet", classesToAdd);
@@ -263,7 +251,6 @@ public class MappingMongoConverterParser implements BeanDefinitionParser {
 		}
 	}
 
-	@Nullable
 	private BeanDefinition getCustomConversions(Element element, ParserContext parserContext) {
 
 		List<Element> customConvertersElements = DomUtils.getChildElementsByTagName(element, "custom-converters");
@@ -271,7 +258,7 @@ public class MappingMongoConverterParser implements BeanDefinitionParser {
 		if (customConvertersElements.size() == 1) {
 
 			Element customerConvertersElement = customConvertersElements.get(0);
-			ManagedList<BeanMetadataElement> converterBeans = new ManagedList<>();
+			ManagedList<BeanMetadataElement> converterBeans = new ManagedList<BeanMetadataElement>();
 			List<Element> converterElements = DomUtils.getChildElementsByTagName(customerConvertersElement, "converter");
 
 			if (converterElements != null) {
@@ -287,10 +274,12 @@ public class MappingMongoConverterParser implements BeanDefinitionParser {
 				provider.addExcludeFilter(new NegatingFilter(new AssignableTypeFilter(Converter.class),
 						new AssignableTypeFilter(GenericConverter.class)));
 
-				converterBeans.addAll(provider.findCandidateComponents(packageToScan));
+				for (BeanDefinition candidate : provider.findCandidateComponents(packageToScan)) {
+					converterBeans.add(candidate);
+				}
 			}
 
-			BeanDefinitionBuilder conversionsBuilder = BeanDefinitionBuilder.rootBeanDefinition(MongoCustomConversions.class);
+			BeanDefinitionBuilder conversionsBuilder = BeanDefinitionBuilder.rootBeanDefinition(CustomConversions.class);
 			conversionsBuilder.addConstructorArgValue(converterBeans);
 
 			AbstractBeanDefinition conversionsBean = conversionsBuilder.getBeanDefinition();
@@ -304,8 +293,7 @@ public class MappingMongoConverterParser implements BeanDefinitionParser {
 		return null;
 	}
 
-	@Nullable
-	private static Set<String> getInitialEntityClasses(Element element) {
+	private static Set<String> getInititalEntityClasses(Element element) {
 
 		String basePackage = element.getAttribute(BASE_PACKAGE);
 
@@ -318,7 +306,7 @@ public class MappingMongoConverterParser implements BeanDefinitionParser {
 		componentProvider.addIncludeFilter(new AnnotationTypeFilter(Document.class));
 		componentProvider.addIncludeFilter(new AnnotationTypeFilter(Persistent.class));
 
-		Set<String> classes = new ManagedSet<>();
+		Set<String> classes = new ManagedSet<String>();
 		for (BeanDefinition candidate : componentProvider.findCandidateComponents(basePackage)) {
 			classes.add(candidate.getBeanClassName());
 		}
@@ -326,7 +314,6 @@ public class MappingMongoConverterParser implements BeanDefinitionParser {
 		return classes;
 	}
 
-	@Nullable
 	public BeanMetadataElement parseConverter(Element element, ParserContext parserContext) {
 
 		String converterRef = element.getAttribute("ref");
@@ -340,14 +327,28 @@ public class MappingMongoConverterParser implements BeanDefinitionParser {
 			return beanDef;
 		}
 
-		parserContext.getReaderContext()
-				.error("Element <converter> must specify 'ref' or contain a bean definition for the converter", element);
+		parserContext.getReaderContext().error(
+				"Element <converter> must specify 'ref' or contain a bean definition for the converter", element);
 		return null;
 	}
 
+	public static String createIsNewStrategyFactoryBeanDefinition(String mappingContextRef, ParserContext context,
+			Element element) {
+
+		BeanDefinitionBuilder mappingContextStrategyFactoryBuilder = BeanDefinitionBuilder
+				.rootBeanDefinition(MappingContextIsNewStrategyFactory.class);
+		mappingContextStrategyFactoryBuilder.addConstructorArgReference(mappingContextRef);
+
+		BeanComponentDefinitionBuilder builder = new BeanComponentDefinitionBuilder(element, context);
+		context.registerBeanComponent(builder.getComponent(mappingContextStrategyFactoryBuilder,
+				IS_NEW_STRATEGY_FACTORY_BEAN_NAME));
+
+		return IS_NEW_STRATEGY_FACTORY_BEAN_NAME;
+	}
+
 	/**
 	 * {@link TypeFilter} that returns {@literal false} in case any of the given delegates matches.
-	 *
+	 * 
 	 * @author Oliver Gierke
 	 */
 	private static class NegatingFilter implements TypeFilter {
@@ -356,22 +357,21 @@ public class MappingMongoConverterParser implements BeanDefinitionParser {
 
 		/**
 		 * Creates a new {@link NegatingFilter} with the given delegates.
-		 *
+		 * 
 		 * @param filters
 		 */
 		public NegatingFilter(TypeFilter... filters) {
 
 			Assert.notNull(filters, "TypeFilters must not be null");
 
-			this.delegates = new HashSet<>(Arrays.asList(filters));
+			this.delegates = new HashSet<TypeFilter>(Arrays.asList(filters));
 		}
 
 		/*
 		 * (non-Javadoc)
 		 * @see org.springframework.core.type.filter.TypeFilter#match(org.springframework.core.type.classreading.MetadataReader, org.springframework.core.type.classreading.MetadataReaderFactory)
 		 */
-		public boolean match(MetadataReader metadataReader, MetadataReaderFactory metadataReaderFactory)
-				throws IOException {
+		public boolean match(MetadataReader metadataReader, MetadataReaderFactory metadataReaderFactory) throws IOException {
 
 			for (TypeFilter delegate : delegates) {
 				if (delegate.match(metadataReader, metadataReaderFactory)) {

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/MongoAuditingBeanDefinitionParser.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2020 the original author or authors.
+ * Copyright 2012-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -18,7 +18,6 @@ package org.springframework.data.mongodb.config;
 import static org.springframework.data.config.ParsingUtils.*;
 import static org.springframework.data.mongodb.config.BeanNames.*;
 
-import org.springframework.beans.factory.support.AbstractBeanDefinition;
 import org.springframework.beans.factory.support.BeanDefinitionBuilder;
 import org.springframework.beans.factory.support.BeanDefinitionRegistry;
 import org.springframework.beans.factory.support.RootBeanDefinition;
@@ -27,36 +26,28 @@ import org.springframework.beans.factory.xml.BeanDefinitionParser;
 import org.springframework.beans.factory.xml.ParserContext;
 import org.springframework.data.auditing.config.IsNewAwareAuditingHandlerBeanDefinitionParser;
 import org.springframework.data.mongodb.core.mapping.MongoMappingContext;
-import org.springframework.data.mongodb.core.mapping.event.AuditingEntityCallback;
-import org.springframework.data.mongodb.core.mapping.event.ReactiveAuditingEntityCallback;
-import org.springframework.lang.Nullable;
-import org.springframework.util.ClassUtils;
+import org.springframework.data.mongodb.core.mapping.event.AuditingEventListener;
 import org.springframework.util.StringUtils;
-
 import org.w3c.dom.Element;
 
 /**
- * {@link BeanDefinitionParser} to register a {@link AuditingEntityCallback} to transparently set auditing information
- * on an entity.
- *
+ * {@link BeanDefinitionParser} to register a {@link AuditingEventListener} to transparently set auditing information on
+ * an entity.
+ * 
  * @author Oliver Gierke
- * @author Mark Paluch
  */
 public class MongoAuditingBeanDefinitionParser extends AbstractSingleBeanDefinitionParser {
 
-	private static boolean PROJECT_REACTOR_AVAILABLE = ClassUtils.isPresent("reactor.core.publisher.Mono",
-			MongoAuditingRegistrar.class.getClassLoader());
-
-	/*
+	/* 
 	 * (non-Javadoc)
 	 * @see org.springframework.beans.factory.xml.AbstractSingleBeanDefinitionParser#getBeanClass(org.w3c.dom.Element)
 	 */
 	@Override
 	protected Class<?> getBeanClass(Element element) {
-		return AuditingEntityCallback.class;
+		return AuditingEventListener.class;
 	}
 
-	/*
+	/* 
 	 * (non-Javadoc)
 	 * @see org.springframework.beans.factory.xml.AbstractBeanDefinitionParser#shouldGenerateId()
 	 */
@@ -65,7 +56,7 @@ public class MongoAuditingBeanDefinitionParser extends AbstractSingleBeanDefinit
 		return true;
 	}
 
-	/*
+	/* 
 	 * (non-Javadoc)
 	 * @see org.springframework.beans.factory.xml.AbstractSingleBeanDefinitionParser#doParse(org.w3c.dom.Element, org.springframework.beans.factory.xml.ParserContext, org.springframework.beans.factory.support.BeanDefinitionBuilder)
 	 */
@@ -89,24 +80,7 @@ public class MongoAuditingBeanDefinitionParser extends AbstractSingleBeanDefinit
 				mappingContextRef);
 		parser.parse(element, parserContext);
 
-		AbstractBeanDefinition isNewAwareAuditingHandler = getObjectFactoryBeanDefinition(parser.getResolvedBeanName(),
-				parserContext.extractSource(element));
-		builder.addConstructorArgValue(isNewAwareAuditingHandler);
-
-		if (PROJECT_REACTOR_AVAILABLE) {
-			registerReactiveAuditingEntityCallback(parserContext.getRegistry(), isNewAwareAuditingHandler,
-					parserContext.extractSource(element));
-		}
-	}
-
-	private void registerReactiveAuditingEntityCallback(BeanDefinitionRegistry registry,
-			AbstractBeanDefinition isNewAwareAuditingHandler, @Nullable Object source) {
-
-		BeanDefinitionBuilder builder = BeanDefinitionBuilder.rootBeanDefinition(ReactiveAuditingEntityCallback.class);
-
-		builder.addConstructorArgValue(isNewAwareAuditingHandler);
-		builder.getRawBeanDefinition().setSource(source);
-
-		registry.registerBeanDefinition(ReactiveAuditingEntityCallback.class.getName(), builder.getBeanDefinition());
+		builder.addConstructorArgValue(getObjectFactoryBeanDefinition(parser.getResolvedBeanName(),
+				parserContext.extractSource(element)));
 	}
 }

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/MongoAuditingRegistrar.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -32,24 +32,18 @@ import org.springframework.data.mapping.context.MappingContext;
 import org.springframework.data.mongodb.core.convert.MappingMongoConverter;
 import org.springframework.data.mongodb.core.mapping.MongoPersistentEntity;
 import org.springframework.data.mongodb.core.mapping.MongoPersistentProperty;
-import org.springframework.data.mongodb.core.mapping.event.AuditingEntityCallback;
-import org.springframework.data.mongodb.core.mapping.event.ReactiveAuditingEntityCallback;
+import org.springframework.data.mongodb.core.mapping.event.AuditingEventListener;
 import org.springframework.util.Assert;
-import org.springframework.util.ClassUtils;
 
 /**
  * {@link ImportBeanDefinitionRegistrar} to enable {@link EnableMongoAuditing} annotation.
- *
+ * 
  * @author Thomas Darimont
  * @author Oliver Gierke
- * @author Mark Paluch
  */
 class MongoAuditingRegistrar extends AuditingBeanDefinitionRegistrarSupport {
 
-	private static boolean PROJECT_REACTOR_AVAILABLE = ClassUtils.isPresent("reactor.core.publisher.Mono",
-			MongoAuditingRegistrar.class.getClassLoader());
-
-	/*
+	/* 
 	 * (non-Javadoc)
 	 * @see org.springframework.data.auditing.config.AuditingBeanDefinitionRegistrarSupport#getAnnotation()
 	 */
@@ -58,7 +52,7 @@ class MongoAuditingRegistrar extends AuditingBeanDefinitionRegistrarSupport {
 		return EnableMongoAuditing.class;
 	}
 
-	/*
+	/* 
 	 * (non-Javadoc)
 	 * @see org.springframework.data.auditing.config.AuditingBeanDefinitionRegistrarSupport#getAuditingHandlerBeanName()
 	 */
@@ -67,7 +61,7 @@ class MongoAuditingRegistrar extends AuditingBeanDefinitionRegistrarSupport {
 		return "mongoAuditingHandler";
 	}
 
-	/*
+	/* 
 	 * (non-Javadoc)
 	 * @see org.springframework.data.auditing.config.AuditingBeanDefinitionRegistrarSupport#registerBeanDefinitions(org.springframework.core.type.AnnotationMetadata, org.springframework.beans.factory.support.BeanDefinitionRegistry)
 	 */
@@ -80,7 +74,7 @@ class MongoAuditingRegistrar extends AuditingBeanDefinitionRegistrarSupport {
 		super.registerBeanDefinitions(annotationMetadata, registry);
 	}
 
-	/*
+	/* 
 	 * (non-Javadoc)
 	 * @see org.springframework.data.auditing.config.AuditingBeanDefinitionRegistrarSupport#getAuditHandlerBeanDefinitionBuilder(org.springframework.data.auditing.config.AuditingConfiguration)
 	 */
@@ -98,7 +92,7 @@ class MongoAuditingRegistrar extends AuditingBeanDefinitionRegistrarSupport {
 		return configureDefaultAuditHandlerAttributes(configuration, builder);
 	}
 
-	/*
+	/* 
 	 * (non-Javadoc)
 	 * @see org.springframework.data.auditing.config.AuditingBeanDefinitionRegistrarSupport#registerAuditListener(org.springframework.beans.factory.config.BeanDefinition, org.springframework.beans.factory.support.BeanDefinitionRegistry)
 	 */
@@ -110,27 +104,12 @@ class MongoAuditingRegistrar extends AuditingBeanDefinitionRegistrarSupport {
 		Assert.notNull(registry, "BeanDefinitionRegistry must not be null!");
 
 		BeanDefinitionBuilder listenerBeanDefinitionBuilder = BeanDefinitionBuilder
-				.rootBeanDefinition(AuditingEntityCallback.class);
+				.rootBeanDefinition(AuditingEventListener.class);
 		listenerBeanDefinitionBuilder
 				.addConstructorArgValue(ParsingUtils.getObjectFactoryBeanDefinition(getAuditingHandlerBeanName(), registry));
 
 		registerInfrastructureBeanWithId(listenerBeanDefinitionBuilder.getBeanDefinition(),
-				AuditingEntityCallback.class.getName(), registry);
-
-		if (PROJECT_REACTOR_AVAILABLE) {
-			registerReactiveAuditingEntityCallback(registry, auditingHandlerDefinition.getSource());
-		}
-	}
-
-	private void registerReactiveAuditingEntityCallback(BeanDefinitionRegistry registry, Object source) {
-
-		BeanDefinitionBuilder builder = BeanDefinitionBuilder.rootBeanDefinition(ReactiveAuditingEntityCallback.class);
-
-		builder.addConstructorArgValue(ParsingUtils.getObjectFactoryBeanDefinition(getAuditingHandlerBeanName(), registry));
-		builder.getRawBeanDefinition().setSource(source);
-
-		registerInfrastructureBeanWithId(builder.getBeanDefinition(), ReactiveAuditingEntityCallback.class.getName(),
-				registry);
+				AuditingEventListener.class.getName(), registry);
 	}
 
 	/**
@@ -146,14 +125,14 @@ class MongoAuditingRegistrar extends AuditingBeanDefinitionRegistrarSupport {
 
 		/**
 		 * Creates a new {@link MongoMappingContextLookup} for the given {@link MappingMongoConverter}.
-		 *
+		 * 
 		 * @param converter must not be {@literal null}.
 		 */
 		public MongoMappingContextLookup(MappingMongoConverter converter) {
 			this.converter = converter;
 		}
 
-		/*
+		/* 
 		 * (non-Javadoc)
 		 * @see org.springframework.beans.factory.FactoryBean#getObject()
 		 */
@@ -162,7 +141,7 @@ class MongoAuditingRegistrar extends AuditingBeanDefinitionRegistrarSupport {
 			return converter.getMappingContext();
 		}
 
-		/*
+		/* 
 		 * (non-Javadoc)
 		 * @see org.springframework.beans.factory.FactoryBean#getObjectType()
 		 */
@@ -171,7 +150,7 @@ class MongoAuditingRegistrar extends AuditingBeanDefinitionRegistrarSupport {
 			return MappingContext.class;
 		}
 
-		/*
+		/* 
 		 * (non-Javadoc)
 		 * @see org.springframework.beans.factory.FactoryBean#isSingleton()
 		 */

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/MongoClientParser.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2015-2020 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -29,13 +29,13 @@ import org.w3c.dom.Element;
 
 /**
  * Parser for {@code mongo-client} definitions.
- *
+ * 
  * @author Christoph Strobl
  * @since 1.7
  */
 public class MongoClientParser implements BeanDefinitionParser {
 
-	/*
+	/* 
 	 * (non-Javadoc)
 	 * @see org.springframework.beans.factory.xml.BeanDefinitionParser#parse(org.w3c.dom.Element, org.springframework.beans.factory.xml.ParserContext)
 	 */

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/MongoConfigurationSupport.java

@@ -1,187 +0,0 @@
-/*
- * Copyright 2016-2020 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.springframework.data.mongodb.config;
-
-import java.util.Collection;
-import java.util.Collections;
-import java.util.HashSet;
-import java.util.Set;
-
-import org.springframework.beans.factory.config.BeanDefinition;
-import org.springframework.context.annotation.Bean;
-import org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider;
-import org.springframework.core.convert.converter.Converter;
-import org.springframework.core.type.filter.AnnotationTypeFilter;
-import org.springframework.data.annotation.Persistent;
-import org.springframework.data.convert.CustomConversions;
-import org.springframework.data.mapping.model.CamelCaseAbbreviatingFieldNamingStrategy;
-import org.springframework.data.mapping.model.FieldNamingStrategy;
-import org.springframework.data.mapping.model.PropertyNameFieldNamingStrategy;
-import org.springframework.data.mongodb.core.convert.MongoCustomConversions;
-import org.springframework.data.mongodb.core.mapping.Document;
-import org.springframework.data.mongodb.core.mapping.MongoMappingContext;
-import org.springframework.util.ClassUtils;
-import org.springframework.util.StringUtils;
-
-/**
- * Base class for Spring Data MongoDB to be extended for JavaConfiguration usage.
- *
- * @author Mark Paluch
- * @since 2.0
- */
-public abstract class MongoConfigurationSupport {
-
-	/**
-	 * Return the name of the database to connect to.
-	 *
-	 * @return must not be {@literal null}.
-	 */
-	protected abstract String getDatabaseName();
-
-	/**
-	 * Returns the base packages to scan for MongoDB mapped entities at startup. Will return the package name of the
-	 * configuration class' (the concrete class, not this one here) by default. So if you have a
-	 * {@code com.acme.AppConfig} extending {@link MongoConfigurationSupport} the base package will be considered
-	 * {@code com.acme} unless the method is overridden to implement alternate behavior.
-	 *
-	 * @return the base packages to scan for mapped {@link Document} classes or an empty collection to not enable scanning
-	 *         for entities.
-	 * @since 1.10
-	 */
-	protected Collection<String> getMappingBasePackages() {
-
-		Package mappingBasePackage = getClass().getPackage();
-		return Collections.singleton(mappingBasePackage == null ? null : mappingBasePackage.getName());
-	}
-
-	/**
-	 * Creates a {@link MongoMappingContext} equipped with entity classes scanned from the mapping base package.
-	 *
-	 * @see #getMappingBasePackages()
-	 * @return
-	 * @throws ClassNotFoundException
-	 */
-	@Bean
-	public MongoMappingContext mongoMappingContext() throws ClassNotFoundException {
-
-		MongoMappingContext mappingContext = new MongoMappingContext();
-		mappingContext.setInitialEntitySet(getInitialEntitySet());
-		mappingContext.setSimpleTypeHolder(customConversions().getSimpleTypeHolder());
-		mappingContext.setFieldNamingStrategy(fieldNamingStrategy());
-		mappingContext.setAutoIndexCreation(autoIndexCreation());
-
-		return mappingContext;
-	}
-
-	/**
-	 * Register custom {@link Converter}s in a {@link CustomConversions} object if required. These
-	 * {@link CustomConversions} will be registered with the {@link #mappingMongoConverter()} and
-	 * {@link #mongoMappingContext()}. Returns an empty {@link MongoCustomConversions} instance by default.
-	 *
-	 * @return must not be {@literal null}.
-	 */
-	@Bean
-	public CustomConversions customConversions() {
-		return new MongoCustomConversions(Collections.emptyList());
-	}
-
-	/**
-	 * Scans the mapping base package for classes annotated with {@link Document}. By default, it scans for entities in
-	 * all packages returned by {@link #getMappingBasePackages()}.
-	 *
-	 * @see #getMappingBasePackages()
-	 * @return
-	 * @throws ClassNotFoundException
-	 */
-	protected Set<Class<?>> getInitialEntitySet() throws ClassNotFoundException {
-
-		Set<Class<?>> initialEntitySet = new HashSet<Class<?>>();
-
-		for (String basePackage : getMappingBasePackages()) {
-			initialEntitySet.addAll(scanForEntities(basePackage));
-		}
-
-		return initialEntitySet;
-	}
-
-	/**
-	 * Scans the given base package for entities, i.e. MongoDB specific types annotated with {@link Document} and
-	 * {@link Persistent}.
-	 *
-	 * @param basePackage must not be {@literal null}.
-	 * @return
-	 * @throws ClassNotFoundException
-	 * @since 1.10
-	 */
-	protected Set<Class<?>> scanForEntities(String basePackage) throws ClassNotFoundException {
-
-		if (!StringUtils.hasText(basePackage)) {
-			return Collections.emptySet();
-		}
-
-		Set<Class<?>> initialEntitySet = new HashSet<Class<?>>();
-
-		if (StringUtils.hasText(basePackage)) {
-
-			ClassPathScanningCandidateComponentProvider componentProvider = new ClassPathScanningCandidateComponentProvider(
-					false);
-			componentProvider.addIncludeFilter(new AnnotationTypeFilter(Document.class));
-			componentProvider.addIncludeFilter(new AnnotationTypeFilter(Persistent.class));
-
-			for (BeanDefinition candidate : componentProvider.findCandidateComponents(basePackage)) {
-
-				initialEntitySet
-						.add(ClassUtils.forName(candidate.getBeanClassName(), MongoConfigurationSupport.class.getClassLoader()));
-			}
-		}
-
-		return initialEntitySet;
-	}
-
-	/**
-	 * Configures whether to abbreviate field names for domain objects by configuring a
-	 * {@link CamelCaseAbbreviatingFieldNamingStrategy} on the {@link MongoMappingContext} instance created. For advanced
-	 * customization needs, consider overriding {@link #mappingMongoConverter()}.
-	 *
-	 * @return
-	 */
-	protected boolean abbreviateFieldNames() {
-		return false;
-	}
-
-	/**
-	 * Configures a {@link FieldNamingStrategy} on the {@link MongoMappingContext} instance created.
-	 *
-	 * @return
-	 * @since 1.5
-	 */
-	protected FieldNamingStrategy fieldNamingStrategy() {
-		return abbreviateFieldNames() ? new CamelCaseAbbreviatingFieldNamingStrategy()
-				: PropertyNameFieldNamingStrategy.INSTANCE;
-	}
-
-	/**
-	 * Configure whether to automatically create indices for domain types by deriving the
-	 * {@link org.springframework.data.mongodb.core.index.IndexDefinition} from the entity or not.
-	 *
-	 * @return {@literal true} by default. <br />
-	 *         <strong>INFO</strong>: As of 3.x the default will be set to {@literal false}.
-	 * @since 2.2
-	 */
-	protected boolean autoIndexCreation() {
-		return true;
-	}
-}

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/MongoCredentialPropertyEditor.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2015-2020 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -16,9 +16,7 @@
 package org.springframework.data.mongodb.config;
 
 import java.beans.PropertyEditorSupport;
-import java.io.UnsupportedEncodingException;
 import java.lang.reflect.Method;
-import java.net.URLDecoder;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
@@ -26,7 +24,6 @@ import java.util.Properties;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
-import org.springframework.lang.Nullable;
 import org.springframework.util.ReflectionUtils;
 import org.springframework.util.StringUtils;
 
@@ -46,23 +43,23 @@ public class MongoCredentialPropertyEditor extends PropertyEditorSupport {
 	private static final Pattern GROUP_PATTERN = Pattern.compile("(\\\\?')(.*?)\\1");
 
 	private static final String AUTH_MECHANISM_KEY = "uri.authMechanism";
-	private static final String USERNAME_PASSWORD_DELIMITER = ":";
-	private static final String DATABASE_DELIMITER = "@";
-	private static final String OPTIONS_DELIMITER = "?";
-	private static final String OPTION_VALUE_DELIMITER = "&";
+	private static final String USERNAME_PASSWORD_DELIMINATOR = ":";
+	private static final String DATABASE_DELIMINATOR = "@";
+	private static final String OPTIONS_DELIMINATOR = "?";
+	private static final String OPTION_VALUE_DELIMINATOR = "&";
 
 	/*
 	 * (non-Javadoc)
 	 * @see java.beans.PropertyEditorSupport#setAsText(java.lang.String)
 	 */
 	@Override
-	public void setAsText(@Nullable String text) throws IllegalArgumentException {
+	public void setAsText(String text) throws IllegalArgumentException {
 
 		if (!StringUtils.hasText(text)) {
 			return;
 		}
 
-		List<MongoCredential> credentials = new ArrayList<>();
+		List<MongoCredential> credentials = new ArrayList<MongoCredential>();
 
 		for (String credentialString : extractCredentialsString(text)) {
 
@@ -80,23 +77,12 @@ public class MongoCredentialPropertyEditor extends PropertyEditorSupport {
 
 						verifyUserNamePresent(userNameAndPassword);
 						credentials.add(MongoCredential.createGSSAPICredential(userNameAndPassword[0]));
-					} else if ("MONGODB-CR".equals(authMechanism)) {
+					} else if (MongoCredential.MONGODB_CR_MECHANISM.equals(authMechanism)) {
 
 						verifyUsernameAndPasswordPresent(userNameAndPassword);
 						verifyDatabasePresent(database);
-
-						Method createCRCredentialMethod = ReflectionUtils.findMethod(MongoCredential.class,
-								"createMongoCRCredential", String.class, String.class, char[].class);
-
-						if (createCRCredentialMethod == null) {
-							throw new IllegalArgumentException("MONGODB-CR is no longer supported.");
-						}
-
-						MongoCredential credential = MongoCredential.class
-								.cast(ReflectionUtils.invokeMethod(createCRCredentialMethod, null, userNameAndPassword[0], database,
-										userNameAndPassword[1].toCharArray()));
-						credentials.add(credential);
-
+						credentials.add(MongoCredential.createMongoCRCredential(userNameAndPassword[0], database,
+								userNameAndPassword[1].toCharArray()));
 					} else if (MongoCredential.MONGODB_X509_MECHANISM.equals(authMechanism)) {
 
 						verifyUserNamePresent(userNameAndPassword);
@@ -113,12 +99,20 @@ public class MongoCredentialPropertyEditor extends PropertyEditorSupport {
 						verifyDatabasePresent(database);
 						credentials.add(MongoCredential.createScramSha1Credential(userNameAndPassword[0], database,
 								userNameAndPassword[1].toCharArray()));
-					} else if (MongoCredential.SCRAM_SHA_256_MECHANISM.equals(authMechanism)) {
+					} else if ("SCRAM-SHA-256".equals(authMechanism)) {
+
+						Method createScramSha256Credential = ReflectionUtils.findMethod(MongoCredential.class,
+								"createScramSha256Credential", String.class, String.class, char[].class);
+
+						if (createScramSha256Credential == null) {
+							throw new IllegalArgumentException(
+									"SCRAM-SHA-256 auth mechanism is available as of MongoDB 4 and MongoDB Java Driver 3.8! Please make sure to use at least those versions.");
+						}
 
 						verifyUsernameAndPasswordPresent(userNameAndPassword);
 						verifyDatabasePresent(database);
-						credentials.add(MongoCredential.createScramSha256Credential(userNameAndPassword[0], database,
-								userNameAndPassword[1].toCharArray()));
+						credentials.add(MongoCredential.class.cast(ReflectionUtils.invokeMethod(createScramSha256Credential, null,
+								userNameAndPassword[0], database, userNameAndPassword[1].toCharArray())));
 					} else {
 						throw new IllegalArgumentException(
 								String.format("Cannot create MongoCredentials for unknown auth mechanism '%s'!", authMechanism));
@@ -139,7 +133,7 @@ public class MongoCredentialPropertyEditor extends PropertyEditorSupport {
 	private List<String> extractCredentialsString(String source) {
 
 		Matcher matcher = GROUP_PATTERN.matcher(source);
-		List<String> list = new ArrayList<>();
+		List<String> list = new ArrayList<String>();
 
 		while (matcher.find()) {
 
@@ -156,45 +150,39 @@ public class MongoCredentialPropertyEditor extends PropertyEditorSupport {
 
 	private static String[] extractUserNameAndPassword(String text) {
 
-		int index = text.lastIndexOf(DATABASE_DELIMITER);
+		int index = text.lastIndexOf(DATABASE_DELIMINATOR);
 
-		index = index != -1 ? index : text.lastIndexOf(OPTIONS_DELIMITER);
+		index = index != -1 ? index : text.lastIndexOf(OPTIONS_DELIMINATOR);
 
-		if (index == -1) {
-			return new String[] {};
-		}
-
-		return Arrays.stream(text.substring(0, index).split(USERNAME_PASSWORD_DELIMITER))
-				.map(MongoCredentialPropertyEditor::decodeParameter).toArray(String[]::new);
+		return index == -1 ? new String[] {} : text.substring(0, index).split(USERNAME_PASSWORD_DELIMINATOR);
 	}
 
 	private static String extractDB(String text) {
 
-		int dbSeparationIndex = text.lastIndexOf(DATABASE_DELIMITER);
+		int dbSeperationIndex = text.lastIndexOf(DATABASE_DELIMINATOR);
 
-		if (dbSeparationIndex == -1) {
+		if (dbSeperationIndex == -1) {
 			return "";
 		}
 
-		String tmp = text.substring(dbSeparationIndex + 1);
-		int optionsSeparationIndex = tmp.lastIndexOf(OPTIONS_DELIMITER);
+		String tmp = text.substring(dbSeperationIndex + 1);
+		int optionsSeperationIndex = tmp.lastIndexOf(OPTIONS_DELIMINATOR);
 
-		return optionsSeparationIndex > -1 ? tmp.substring(0, optionsSeparationIndex) : tmp;
+		return optionsSeperationIndex > -1 ? tmp.substring(0, optionsSeperationIndex) : tmp;
 	}
 
 	private static Properties extractOptions(String text) {
 
-		int optionsSeparationIndex = text.lastIndexOf(OPTIONS_DELIMITER);
-		int dbSeparationIndex = text.lastIndexOf(DATABASE_DELIMITER);
+		int optionsSeperationIndex = text.lastIndexOf(OPTIONS_DELIMINATOR);
+		int dbSeperationIndex = text.lastIndexOf(DATABASE_DELIMINATOR);
 
-		if (optionsSeparationIndex == -1 || dbSeparationIndex > optionsSeparationIndex) {
+		if (optionsSeperationIndex == -1 || dbSeperationIndex > optionsSeperationIndex) {
 			return new Properties();
 		}
 
 		Properties properties = new Properties();
 
-		for (String option : text.substring(optionsSeparationIndex + 1).split(OPTION_VALUE_DELIMITER)) {
-
+		for (String option : text.substring(optionsSeperationIndex + 1).split(OPTION_VALUE_DELIMINATOR)) {
 			String[] optionArgs = option.split("=");
 
 			if (optionArgs.length == 1) {
@@ -230,12 +218,4 @@ public class MongoCredentialPropertyEditor extends PropertyEditorSupport {
 			throw new IllegalArgumentException("Credentials need to specify username!");
 		}
 	}
-
-	private static String decodeParameter(String it) {
-		try {
-			return URLDecoder.decode(it, "UTF-8");
-		} catch (UnsupportedEncodingException e) {
-			throw new IllegalArgumentException("o_O UTF-8 not supported!", e);
-		}
-	}
 }

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/MongoDbFactoryParser.java

@@ -1,11 +1,11 @@
 /*
- * Copyright 2011-2020 the original author or authors.
+ * Copyright 2011-2015 by the original author(s).
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
- *      https://www.apache.org/licenses/LICENSE-2.0
+ *     https://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
@@ -30,10 +30,10 @@ import org.springframework.beans.factory.support.BeanDefinitionBuilder;
 import org.springframework.beans.factory.xml.AbstractBeanDefinitionParser;
 import org.springframework.beans.factory.xml.BeanDefinitionParser;
 import org.springframework.beans.factory.xml.ParserContext;
+import org.springframework.data.authentication.UserCredentials;
 import org.springframework.data.config.BeanComponentDefinitionBuilder;
-import org.springframework.data.mongodb.core.MongoClientFactoryBean;
+import org.springframework.data.mongodb.core.MongoFactoryBean;
 import org.springframework.data.mongodb.core.SimpleMongoDbFactory;
-import org.springframework.lang.Nullable;
 import org.springframework.util.StringUtils;
 import org.w3c.dom.Element;
 
@@ -43,13 +43,12 @@ import com.mongodb.MongoURI;
 
 /**
  * {@link BeanDefinitionParser} to parse {@code db-factory} elements into {@link BeanDefinition}s.
- *
+ * 
  * @author Jon Brisbin
  * @author Oliver Gierke
  * @author Thomas Darimont
  * @author Christoph Strobl
  * @author Viktor Khoroshko
- * @author Mark Paluch
  */
 public class MongoDbFactoryParser extends AbstractBeanDefinitionParser {
 
@@ -64,7 +63,7 @@ public class MongoDbFactoryParser extends AbstractBeanDefinitionParser {
 		MONGO_URI_ALLOWED_ADDITIONAL_ATTRIBUTES = Collections.unmodifiableSet(mongoUriAllowedAdditionalAttributes);
 	}
 
-	/*
+	/* 
 	 * (non-Javadoc)
 	 * @see org.springframework.beans.factory.xml.AbstractBeanDefinitionParser#resolveId(org.w3c.dom.Element, org.springframework.beans.factory.support.AbstractBeanDefinition, org.springframework.beans.factory.xml.ParserContext)
 	 */
@@ -76,7 +75,7 @@ public class MongoDbFactoryParser extends AbstractBeanDefinitionParser {
 		return StringUtils.hasText(id) ? id : BeanNames.DB_FACTORY_BEAN_NAME;
 	}
 
-	/*
+	/* 
 	 * (non-Javadoc)
 	 * @see org.springframework.beans.factory.xml.AbstractBeanDefinitionParser#parseInternal(org.w3c.dom.Element, org.springframework.beans.factory.xml.ParserContext)
 	 */
@@ -100,6 +99,8 @@ public class MongoDbFactoryParser extends AbstractBeanDefinitionParser {
 		String mongoRef = element.getAttribute("mongo-ref");
 		String dbname = element.getAttribute("dbname");
 
+		BeanDefinition userCredentials = getUserCredentialsBeanDefinition(element, parserContext);
+
 		// Defaulting
 		if (StringUtils.hasText(mongoRef)) {
 			dbFactoryBuilder.addConstructorArgReference(mongoRef);
@@ -108,6 +109,8 @@ public class MongoDbFactoryParser extends AbstractBeanDefinitionParser {
 		}
 
 		dbFactoryBuilder.addConstructorArgValue(StringUtils.hasText(dbname) ? dbname : "db");
+		dbFactoryBuilder.addConstructorArgValue(userCredentials);
+		dbFactoryBuilder.addConstructorArgValue(element.getAttribute("authentication-dbname"));
 
 		BeanDefinitionBuilder writeConcernPropertyEditorBuilder = getWriteConcernPropertyEditorBuilder();
 
@@ -121,31 +124,52 @@ public class MongoDbFactoryParser extends AbstractBeanDefinitionParser {
 	/**
 	 * Registers a default {@link BeanDefinition} of a {@link Mongo} instance and returns the name under which the
 	 * {@link Mongo} instance was registered under.
-	 *
+	 * 
 	 * @param element must not be {@literal null}.
 	 * @param parserContext must not be {@literal null}.
 	 * @return
 	 */
 	private BeanDefinition registerMongoBeanDefinition(Element element, ParserContext parserContext) {
 
-		BeanDefinitionBuilder mongoBuilder = BeanDefinitionBuilder.genericBeanDefinition(MongoClientFactoryBean.class);
+		BeanDefinitionBuilder mongoBuilder = BeanDefinitionBuilder.genericBeanDefinition(MongoFactoryBean.class);
 		setPropertyValue(mongoBuilder, element, "host");
 		setPropertyValue(mongoBuilder, element, "port");
 
 		return getSourceBeanDefinition(mongoBuilder, parserContext, element);
 	}
 
+	/**
+	 * Returns a {@link BeanDefinition} for a {@link UserCredentials} object.
+	 * 
+	 * @param element
+	 * @return the {@link BeanDefinition} or {@literal null} if neither username nor password given.
+	 */
+	private BeanDefinition getUserCredentialsBeanDefinition(Element element, ParserContext context) {
+
+		String username = element.getAttribute("username");
+		String password = element.getAttribute("password");
+
+		if (!StringUtils.hasText(username) && !StringUtils.hasText(password)) {
+			return null;
+		}
+
+		BeanDefinitionBuilder userCredentialsBuilder = BeanDefinitionBuilder.genericBeanDefinition(UserCredentials.class);
+		userCredentialsBuilder.addConstructorArgValue(StringUtils.hasText(username) ? username : null);
+		userCredentialsBuilder.addConstructorArgValue(StringUtils.hasText(password) ? password : null);
+
+		return getSourceBeanDefinition(userCredentialsBuilder, context, element);
+	}
+
 	/**
 	 * Creates a {@link BeanDefinition} for a {@link MongoURI} or {@link MongoClientURI} depending on configured
 	 * attributes. <br />
 	 * Errors when configured element contains {@literal uri} or {@literal client-uri} along with other attributes except
 	 * {@literal write-concern} and/or {@literal id}.
-	 *
+	 * 
 	 * @param element must not be {@literal null}.
 	 * @param parserContext
 	 * @return {@literal null} in case no client-/uri defined.
 	 */
-	@Nullable
 	private BeanDefinition getMongoUri(Element element, ParserContext parserContext) {
 
 		boolean hasClientUri = element.hasAttribute("client-uri");
@@ -169,7 +193,7 @@ public class MongoDbFactoryParser extends AbstractBeanDefinitionParser {
 					parserContext.extractSource(element));
 		}
 
-		Class<?> type = MongoClientURI.class;
+		Class<?> type = hasClientUri ? MongoClientURI.class : MongoURI.class;
 		String uri = hasClientUri ? element.getAttribute("client-uri") : element.getAttribute("uri");
 
 		BeanDefinitionBuilder builder = BeanDefinitionBuilder.genericBeanDefinition(type);

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/MongoJmxParser.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2020 the original author or authors.
+ * Copyright 2011-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -26,19 +26,12 @@ import org.springframework.data.mongodb.monitor.*;
 import org.springframework.util.StringUtils;
 import org.w3c.dom.Element;
 
-/**
- * @author Mark Pollack
- * @author Thomas Risberg
- * @author John Brisbin
- * @author Oliver Gierke
- * @author Christoph Strobl
- */
 public class MongoJmxParser implements BeanDefinitionParser {
 
 	public BeanDefinition parse(Element element, ParserContext parserContext) {
 		String name = element.getAttribute("mongo-ref");
 		if (!StringUtils.hasText(name)) {
-			name = BeanNames.MONGO_BEAN_NAME;
+			name = "mongo";
 		}
 		registerJmxComponents(name, element, parserContext);
 		return null;

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/MongoNamespaceHandler.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2020 the original author or authors.
+ * Copyright 2011-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -19,7 +19,7 @@ import org.springframework.beans.factory.xml.NamespaceHandlerSupport;
 
 /**
  * {@link org.springframework.beans.factory.xml.NamespaceHandler} for Mongo DB configuration.
- *
+ * 
  * @author Oliver Gierke
  * @author Martin Baumgartner
  * @author Christoph Strobl
@@ -33,6 +33,7 @@ public class MongoNamespaceHandler extends NamespaceHandlerSupport {
 	public void init() {
 
 		registerBeanDefinitionParser("mapping-converter", new MappingMongoConverterParser());
+		registerBeanDefinitionParser("mongo", new MongoParser());
 		registerBeanDefinitionParser("mongo-client", new MongoClientParser());
 		registerBeanDefinitionParser("db-factory", new MongoDbFactoryParser());
 		registerBeanDefinitionParser("jmx", new MongoJmxParser());

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/MongoParser.java

@@ -0,0 +1,76 @@
+/*
+ * Copyright 2011-2019 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.data.mongodb.config;
+
+import org.springframework.beans.factory.config.BeanDefinition;
+import org.springframework.beans.factory.parsing.BeanComponentDefinition;
+import org.springframework.beans.factory.parsing.CompositeComponentDefinition;
+import org.springframework.beans.factory.support.BeanDefinitionBuilder;
+import org.springframework.beans.factory.xml.BeanDefinitionParser;
+import org.springframework.beans.factory.xml.ParserContext;
+import org.springframework.data.config.BeanComponentDefinitionBuilder;
+import org.springframework.data.config.ParsingUtils;
+import org.springframework.data.mongodb.core.MongoFactoryBean;
+import org.springframework.util.StringUtils;
+import org.w3c.dom.Element;
+
+/**
+ * Parser for <mongo;gt; definitions.
+ * 
+ * @author Mark Pollack
+ * @author Oliver Gierke
+ * @author Christoph Strobl
+ */
+public class MongoParser implements BeanDefinitionParser {
+
+	/* 
+	 * (non-Javadoc)
+	 * @see org.springframework.beans.factory.xml.BeanDefinitionParser#parse(org.w3c.dom.Element, org.springframework.beans.factory.xml.ParserContext)
+	 */
+	public BeanDefinition parse(Element element, ParserContext parserContext) {
+
+		Object source = parserContext.extractSource(element);
+		String id = element.getAttribute("id");
+
+		BeanComponentDefinitionBuilder helper = new BeanComponentDefinitionBuilder(element, parserContext);
+
+		BeanDefinitionBuilder builder = BeanDefinitionBuilder.genericBeanDefinition(MongoFactoryBean.class);
+		ParsingUtils.setPropertyValue(builder, element, "port", "port");
+		ParsingUtils.setPropertyValue(builder, element, "host", "host");
+		ParsingUtils.setPropertyValue(builder, element, "write-concern", "writeConcern");
+
+		MongoParsingUtils.parseMongoOptions(element, builder);
+		MongoParsingUtils.parseReplicaSet(element, builder);
+
+		String defaultedId = StringUtils.hasText(id) ? id : BeanNames.MONGO_BEAN_NAME;
+
+		parserContext.pushContainingComponent(new CompositeComponentDefinition("Mongo", source));
+
+		BeanComponentDefinition mongoComponent = helper.getComponent(builder, defaultedId);
+		parserContext.registerBeanComponent(mongoComponent);
+		BeanComponentDefinition serverAddressPropertyEditor = helper.getComponent(MongoParsingUtils
+				.getServerAddressPropertyEditorBuilder());
+		parserContext.registerBeanComponent(serverAddressPropertyEditor);
+		BeanComponentDefinition writeConcernPropertyEditor = helper.getComponent(MongoParsingUtils
+				.getWriteConcernPropertyEditorBuilder());
+		parserContext.registerBeanComponent(writeConcernPropertyEditor);
+
+		parserContext.popAndRegisterContainingComponent();
+
+		return mongoComponent.getBeanDefinition();
+	}
+
+}

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/MongoParsingUtils.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2020 the original author or authors.
+ * Copyright 2011-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -25,17 +25,17 @@ import org.springframework.beans.factory.support.BeanDefinitionBuilder;
 import org.springframework.beans.factory.support.ManagedMap;
 import org.springframework.beans.factory.xml.BeanDefinitionParser;
 import org.springframework.data.mongodb.core.MongoClientOptionsFactoryBean;
+import org.springframework.data.mongodb.core.MongoOptionsFactoryBean;
 import org.springframework.util.xml.DomUtils;
 import org.w3c.dom.Element;
 
 /**
  * Utility methods for {@link BeanDefinitionParser} implementations for MongoDB.
- *
+ * 
  * @author Mark Pollack
  * @author Oliver Gierke
  * @author Thomas Darimont
  * @author Christoph Strobl
- * @author Mark Paluch
  */
 @SuppressWarnings("deprecation")
 abstract class MongoParsingUtils {
@@ -44,7 +44,7 @@ abstract class MongoParsingUtils {
 
 	/**
 	 * Parses the mongo replica-set element.
-	 *
+	 * 
 	 * @param parserContext the parser context
 	 * @param element the mongo element
 	 * @param mongoBuilder the bean definition builder to populate
@@ -54,10 +54,46 @@ abstract class MongoParsingUtils {
 		setPropertyValue(mongoBuilder, element, "replica-set", "replicaSetSeeds");
 	}
 
+	/**
+	 * Parses the {@code mongo:options} sub-element. Populates the given attribute factory with the proper attributes.
+	 * 
+	 * @return true if parsing actually occured, {@literal false} otherwise
+	 */
+	static boolean parseMongoOptions(Element element, BeanDefinitionBuilder mongoBuilder) {
+
+		Element optionsElement = DomUtils.getChildElementByTagName(element, "options");
+
+		if (optionsElement == null) {
+			return false;
+		}
+
+		BeanDefinitionBuilder optionsDefBuilder = BeanDefinitionBuilder
+				.genericBeanDefinition(MongoOptionsFactoryBean.class);
+
+		setPropertyValue(optionsDefBuilder, optionsElement, "connections-per-host", "connectionsPerHost");
+		setPropertyValue(optionsDefBuilder, optionsElement, "threads-allowed-to-block-for-connection-multiplier",
+				"threadsAllowedToBlockForConnectionMultiplier");
+		setPropertyValue(optionsDefBuilder, optionsElement, "max-wait-time", "maxWaitTime");
+		setPropertyValue(optionsDefBuilder, optionsElement, "connect-timeout", "connectTimeout");
+		setPropertyValue(optionsDefBuilder, optionsElement, "socket-timeout", "socketTimeout");
+		setPropertyValue(optionsDefBuilder, optionsElement, "socket-keep-alive", "socketKeepAlive");
+		setPropertyValue(optionsDefBuilder, optionsElement, "auto-connect-retry", "autoConnectRetry");
+		setPropertyValue(optionsDefBuilder, optionsElement, "max-auto-connect-retry-time", "maxAutoConnectRetryTime");
+		setPropertyValue(optionsDefBuilder, optionsElement, "write-number", "writeNumber");
+		setPropertyValue(optionsDefBuilder, optionsElement, "write-timeout", "writeTimeout");
+		setPropertyValue(optionsDefBuilder, optionsElement, "write-fsync", "writeFsync");
+		setPropertyValue(optionsDefBuilder, optionsElement, "slave-ok", "slaveOk");
+		setPropertyValue(optionsDefBuilder, optionsElement, "ssl", "ssl");
+		setPropertyReference(optionsDefBuilder, optionsElement, "ssl-socket-factory-ref", "sslSocketFactory");
+
+		mongoBuilder.addPropertyValue("mongoOptions", optionsDefBuilder.getBeanDefinition());
+		return true;
+	}
+
 	/**
 	 * Parses the {@code mongo:client-options} sub-element. Populates the given attribute factory with the proper
 	 * attributes.
-	 *
+	 * 
 	 * @param element must not be {@literal null}.
 	 * @param mongoClientBuilder must not be {@literal null}.
 	 * @return
@@ -93,7 +129,6 @@ abstract class MongoParsingUtils {
 		setPropertyValue(clientOptionsDefBuilder, optionsElement, "heartbeat-socket-timeout", "heartbeatSocketTimeout");
 		setPropertyValue(clientOptionsDefBuilder, optionsElement, "ssl", "ssl");
 		setPropertyReference(clientOptionsDefBuilder, optionsElement, "ssl-socket-factory-ref", "sslSocketFactory");
-		setPropertyReference(clientOptionsDefBuilder, optionsElement, "encryption-settings-ref", "autoEncryptionSettings");
 		setPropertyValue(clientOptionsDefBuilder, optionsElement, "server-selection-timeout", "serverSelectionTimeout");
 
 		mongoClientBuilder.addPropertyValue("mongoClientOptions", clientOptionsDefBuilder.getBeanDefinition());
@@ -104,7 +139,7 @@ abstract class MongoParsingUtils {
 	/**
 	 * Returns the {@link BeanDefinitionBuilder} to build a {@link BeanDefinition} for a
 	 * {@link WriteConcernPropertyEditor}.
-	 *
+	 * 
 	 * @return
 	 */
 	static BeanDefinitionBuilder getWriteConcernPropertyEditorBuilder() {
@@ -137,7 +172,7 @@ abstract class MongoParsingUtils {
 	/**
 	 * Returns the {@link BeanDefinitionBuilder} to build a {@link BeanDefinition} for a
 	 * {@link ReadPreferencePropertyEditor}.
-	 *
+	 * 
 	 * @return
 	 * @since 1.7
 	 */
@@ -155,7 +190,7 @@ abstract class MongoParsingUtils {
 	/**
 	 * Returns the {@link BeanDefinitionBuilder} to build a {@link BeanDefinition} for a
 	 * {@link MongoCredentialPropertyEditor}.
-	 *
+	 * 
 	 * @return
 	 * @since 1.7
 	 */

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/MongoTemplateParser.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2020 the original author or authors.
+ * Copyright 2011-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -33,13 +33,13 @@ import org.w3c.dom.Element;
 
 /**
  * {@link BeanDefinitionParser} to parse {@code template} elements into {@link BeanDefinition}s.
- *
+ * 
  * @author Martin Baumgartner
  * @author Oliver Gierke
  */
 class MongoTemplateParser extends AbstractBeanDefinitionParser {
 
-	/*
+	/* 
 	 * (non-Javadoc)
 	 * @see org.springframework.beans.factory.xml.AbstractBeanDefinitionParser#resolveId(org.w3c.dom.Element, org.springframework.beans.factory.support.AbstractBeanDefinition, org.springframework.beans.factory.xml.ParserContext)
 	 */

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/ReadPreferencePropertyEditor.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2015-2020 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -17,13 +17,11 @@ package org.springframework.data.mongodb.config;
 
 import java.beans.PropertyEditorSupport;
 
-import org.springframework.lang.Nullable;
-
 import com.mongodb.ReadPreference;
 
 /**
  * Parse a {@link String} to a {@link ReadPreference}.
- *
+ * 
  * @author Christoph Strobl
  * @since 1.7
  */
@@ -34,7 +32,7 @@ public class ReadPreferencePropertyEditor extends PropertyEditorSupport {
 	 * @see java.beans.PropertyEditorSupport#setAsText(java.lang.String)
 	 */
 	@Override
-	public void setAsText(@Nullable String readPreferenceString) throws IllegalArgumentException {
+	public void setAsText(String readPreferenceString) throws IllegalArgumentException {
 
 		if (readPreferenceString == null) {
 			return;
@@ -61,8 +59,8 @@ public class ReadPreferencePropertyEditor extends PropertyEditorSupport {
 		} else if ("NEAREST".equalsIgnoreCase(readPreferenceString)) {
 			setValue(ReadPreference.nearest());
 		} else {
-			throw new IllegalArgumentException(
-					String.format("Cannot find matching ReadPreference for %s", readPreferenceString));
+			throw new IllegalArgumentException(String.format("Cannot find matching ReadPreference for %s",
+					readPreferenceString));
 		}
 	}
 }

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/ServerAddressPropertyEditor.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2020 the original author or authors.
+ * Copyright 2011-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -23,7 +23,6 @@ import java.util.Set;
 
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
-import org.springframework.lang.Nullable;
 import org.springframework.util.Assert;
 import org.springframework.util.StringUtils;
 
@@ -31,11 +30,10 @@ import com.mongodb.ServerAddress;
 
 /**
  * Parse a {@link String} to a {@link ServerAddress} array. The format is host1:port1,host2:port2,host3:port3.
- *
+ * 
  * @author Mark Pollack
  * @author Oliver Gierke
  * @author Thomas Darimont
- * @author Christoph Strobl
  */
 public class ServerAddressPropertyEditor extends PropertyEditorSupport {
 
@@ -51,7 +49,7 @@ public class ServerAddressPropertyEditor extends PropertyEditorSupport {
 	 * @see java.beans.PropertyEditorSupport#setAsText(java.lang.String)
 	 */
 	@Override
-	public void setAsText(@Nullable String replicaSetString) {
+	public void setAsText(String replicaSetString) {
 
 		if (!StringUtils.hasText(replicaSetString)) {
 			setValue(null);
@@ -80,11 +78,10 @@ public class ServerAddressPropertyEditor extends PropertyEditorSupport {
 
 	/**
 	 * Parses the given source into a {@link ServerAddress}.
-	 *
+	 * 
 	 * @param source
 	 * @return the
 	 */
-	@Nullable
 	private ServerAddress parseServerAddress(String source) {
 
 		if (!StringUtils.hasText(source)) {
@@ -115,7 +112,7 @@ public class ServerAddressPropertyEditor extends PropertyEditorSupport {
 
 	/**
 	 * Extract the host and port from the given {@link String}.
-	 *
+	 * 
 	 * @param addressAndPortSource must not be {@literal null}.
 	 * @return
 	 */

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/StringToWriteConcernConverter.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2020 the original author or authors.
+ * Copyright 2012-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -21,12 +21,12 @@ import com.mongodb.WriteConcern;
 
 /**
  * Converter to create {@link WriteConcern} instances from String representations.
- *
+ * 
  * @author Oliver Gierke
  */
 public class StringToWriteConcernConverter implements Converter<String, WriteConcern> {
 
-	/*
+	/* 
 	 * (non-Javadoc)
 	 * @see org.springframework.core.convert.converter.Converter#convert(java.lang.Object)
 	 */

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/WriteConcernPropertyEditor.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2020 the original author or authors.
+ * Copyright 2011-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -17,9 +17,6 @@ package org.springframework.data.mongodb.config;
 
 import java.beans.PropertyEditorSupport;
 
-import org.springframework.lang.Nullable;
-import org.springframework.util.StringUtils;
-
 import com.mongodb.WriteConcern;
 
 /**
@@ -27,9 +24,8 @@ import com.mongodb.WriteConcern;
  * {@link WriteConcern#valueOf(String)}, use the well known {@link WriteConcern} value, otherwise pass the string as is
  * to the constructor of the write concern. There is no support for other constructor signatures when parsing from a
  * string value.
- *
+ * 
  * @author Mark Pollack
- * @author Christoph Strobl
  */
 public class WriteConcernPropertyEditor extends PropertyEditorSupport {
 
@@ -37,11 +33,7 @@ public class WriteConcernPropertyEditor extends PropertyEditorSupport {
 	 * Parse a string to a List<ServerAddress>
 	 */
 	@Override
-	public void setAsText(@Nullable String writeConcernString) {
-
-		if (!StringUtils.hasText(writeConcernString)) {
-			return;
-		}
+	public void setAsText(String writeConcernString) {
 
 		WriteConcern writeConcern = WriteConcern.valueOf(writeConcernString);
 		if (writeConcern != null) {

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/package-info.java

@@ -1,6 +1,5 @@
 /**
  * Spring XML namespace configuration for MongoDB specific repositories.
  */
-@org.springframework.lang.NonNullApi
 package org.springframework.data.mongodb.config;
 

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/AggregationUtil.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2018-2020 the original author or authors.
+ * Copyright 2018-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -17,37 +17,28 @@ package org.springframework.data.mongodb.core;
 
 import lombok.AllArgsConstructor;
 
-import java.util.Arrays;
-import java.util.Collections;
 import java.util.List;
-import java.util.Optional;
-import java.util.stream.Collectors;
 
-import org.bson.Document;
 import org.springframework.data.mapping.context.MappingContext;
 import org.springframework.data.mongodb.core.aggregation.Aggregation;
-import org.springframework.data.mongodb.core.aggregation.AggregationOperation;
 import org.springframework.data.mongodb.core.aggregation.AggregationOperationContext;
-import org.springframework.data.mongodb.core.aggregation.AggregationOptions;
-import org.springframework.data.mongodb.core.aggregation.CountOperation;
 import org.springframework.data.mongodb.core.aggregation.TypeBasedAggregationOperationContext;
 import org.springframework.data.mongodb.core.aggregation.TypedAggregation;
 import org.springframework.data.mongodb.core.convert.QueryMapper;
 import org.springframework.data.mongodb.core.mapping.MongoPersistentEntity;
 import org.springframework.data.mongodb.core.mapping.MongoPersistentProperty;
-import org.springframework.data.mongodb.core.query.CriteriaDefinition;
-import org.springframework.data.mongodb.core.query.Query;
-import org.springframework.lang.Nullable;
-import org.springframework.util.Assert;
 import org.springframework.util.ObjectUtils;
 
+import com.mongodb.BasicDBList;
+import com.mongodb.DBObject;
+
 /**
  * Utility methods to map {@link org.springframework.data.mongodb.core.aggregation.Aggregation} pipeline definitions and
  * create type-bound {@link AggregationOperationContext}.
  *
  * @author Christoph Strobl
  * @author Mark Paluch
- * @since 2.1
+ * @since 1.10.13
  */
 @AllArgsConstructor
 class AggregationUtil {
@@ -64,8 +55,7 @@ class AggregationUtil {
 	 * @param context can be {@literal null}.
 	 * @return the root {@link AggregationOperationContext} to use.
 	 */
-	AggregationOperationContext prepareAggregationContext(Aggregation aggregation,
-			@Nullable AggregationOperationContext context) {
+	AggregationOperationContext prepareAggregationContext(Aggregation aggregation, AggregationOperationContext context) {
 
 		if (context != null) {
 			return context;
@@ -86,13 +76,16 @@ class AggregationUtil {
 	 * @param context
 	 * @return
 	 */
-	List<Document> createPipeline(Aggregation aggregation, AggregationOperationContext context) {
+	DBObject createPipeline(String collectionName, Aggregation aggregation, AggregationOperationContext context) {
 
 		if (!ObjectUtils.nullSafeEquals(context, Aggregation.DEFAULT_CONTEXT)) {
-			return aggregation.toPipeline(context);
+			return aggregation.toDbObject(collectionName, context);
 		}
 
-		return mapAggregationPipeline(aggregation.toPipeline(context));
+		DBObject command = aggregation.toDbObject(collectionName, context);
+		command.put("pipeline", mapAggregationPipeline((List) command.get("pipeline")));
+
+		return command;
 	}
 
 	/**
@@ -102,69 +95,27 @@ class AggregationUtil {
 	 * @param context
 	 * @return
 	 */
-	Document createCommand(String collection, Aggregation aggregation, AggregationOperationContext context) {
+	DBObject createCommand(String collection, Aggregation aggregation, AggregationOperationContext context) {
 
-		Document command = aggregation.toDocument(collection, context);
+		DBObject command = aggregation.toDbObject(collection, context);
 
 		if (!ObjectUtils.nullSafeEquals(context, Aggregation.DEFAULT_CONTEXT)) {
 			return command;
 		}
 
-		command.put("pipeline", mapAggregationPipeline(command.get("pipeline", List.class)));
+		command.put("pipeline", mapAggregationPipeline((List) command.get("pipeline")));
 
 		return command;
 	}
 
-	/**
-	 * Create a {@code $count} aggregation for {@link Query} and optionally a {@link Class entity class}.
-	 *
-	 * @param query must not be {@literal null}.
-	 * @param entityClass can be {@literal null} if the {@link Query} object is empty.
-	 * @return the {@link Aggregation} pipeline definition to run a {@code $count} aggregation.
-	 */
-	Aggregation createCountAggregation(Query query, @Nullable Class<?> entityClass) {
+	private BasicDBList mapAggregationPipeline(List<DBObject> pipeline) {
 
-		List<AggregationOperation> pipeline = computeCountAggregationPipeline(query, entityClass);
+		BasicDBList mapped = new BasicDBList();
 
-		Aggregation aggregation = entityClass != null ? Aggregation.newAggregation(entityClass, pipeline)
-				: Aggregation.newAggregation(pipeline);
-		aggregation.withOptions(AggregationOptions.builder().collation(query.getCollation().orElse(null)).build());
-
-		return aggregation;
-	}
-
-	private List<AggregationOperation> computeCountAggregationPipeline(Query query, @Nullable Class<?> entityType) {
-
-		CountOperation count = Aggregation.count().as("totalEntityCount");
-		if (query.getQueryObject().isEmpty()) {
-			return Collections.singletonList(count);
+		for (DBObject stage : pipeline) {
+			mapped.add(queryMapper.getMappedObject(stage, null));
 		}
 
-		Assert.notNull(entityType, "Entity type must not be null!");
-
-		Document mappedQuery = queryMapper.getMappedObject(query.getQueryObject(),
-				mappingContext.getPersistentEntity(entityType));
-
-		CriteriaDefinition criteria = new CriteriaDefinition() {
-
-			@Override
-			public Document getCriteriaObject() {
-				return mappedQuery;
-			}
-
-			@Nullable
-			@Override
-			public String getKey() {
-				return null;
-			}
-		};
-
-		return Arrays.asList(Aggregation.match(criteria), count);
-	}
-
-	private List<Document> mapAggregationPipeline(List<Document> pipeline) {
-
-		return pipeline.stream().map(val -> queryMapper.getMappedObject(val, Optional.empty()))
-				.collect(Collectors.toList());
+		return mapped;
 	}
 }

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/BulkOperations.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2015-2020 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -21,7 +21,7 @@ import org.springframework.data.mongodb.core.query.Query;
 import org.springframework.data.mongodb.core.query.Update;
 import org.springframework.data.util.Pair;
 
-import com.mongodb.bulk.BulkWriteResult;
+import com.mongodb.BulkWriteResult;
 
 /**
  * Bulk operations for insert/update/remove actions on a collection. These bulks operation are available since MongoDB
@@ -31,7 +31,6 @@ import com.mongodb.bulk.BulkWriteResult;
  *
  * @author Tobias Trelle
  * @author Oliver Gierke
- * @author Minsu Kim
  * @since 1.9
  */
 public interface BulkOperations {
@@ -39,7 +38,7 @@ public interface BulkOperations {
 	/**
 	 * Mode for bulk operation.
 	 **/
-	enum BulkMode {
+	public enum BulkMode {
 
 		/** Perform bulk operations in sequence. The first error will cancel processing. */
 		ORDERED,
@@ -136,29 +135,6 @@ public interface BulkOperations {
 	 */
 	BulkOperations remove(List<Query> removes);
 
-	/**
-	 * Add a single replace operation to the bulk operation.
-	 *
-	 * @param query Update criteria.
-	 * @param replacement the replacement document. Must not be {@literal null}.
-	 * @return the current {@link BulkOperations} instance with the replace added, will never be {@literal null}.
-	 * @since 2.2
-	 */
-	default BulkOperations replaceOne(Query query, Object replacement) {
-		return replaceOne(query, replacement, FindAndReplaceOptions.empty());
-	}
-
-	/**
-	 * Add a single replace operation to the bulk operation.
-	 *
-	 * @param query Update criteria.
-	 * @param replacement the replacement document. Must not be {@literal null}.
-	 * @param options the {@link FindAndModifyOptions} holding additional information. Must not be {@literal null}.
-	 * @return the current {@link BulkOperations} instance with the replace added, will never be {@literal null}.
-	 * @since 2.2
-	 */
-	BulkOperations replaceOne(Query query, Object replacement, FindAndReplaceOptions options);
-
 	/**
 	 * Execute all bulk operations using the default write concern.
 	 *

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/ChangeStreamEvent.java

@@ -1,202 +0,0 @@
-/*
- * Copyright 2018-2020 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.springframework.data.mongodb.core;
-
-import lombok.EqualsAndHashCode;
-
-import java.time.Instant;
-import java.util.concurrent.atomic.AtomicReferenceFieldUpdater;
-
-import org.bson.BsonTimestamp;
-import org.bson.BsonValue;
-import org.bson.Document;
-import org.springframework.data.mongodb.core.convert.MongoConverter;
-import org.springframework.data.mongodb.core.messaging.Message;
-import org.springframework.lang.Nullable;
-import org.springframework.util.ClassUtils;
-
-import com.mongodb.client.model.changestream.ChangeStreamDocument;
-import com.mongodb.client.model.changestream.OperationType;
-
-/**
- * {@link Message} implementation specific to MongoDB <a href="https://docs.mongodb.com/manual/changeStreams/">Change
- * Streams</a>.
- *
- * @author Christoph Strobl
- * @author Mark Paluch
- * @since 2.1
- */
-@EqualsAndHashCode
-public class ChangeStreamEvent<T> {
-
-	@SuppressWarnings("rawtypes") //
-	private static final AtomicReferenceFieldUpdater<ChangeStreamEvent, Object> CONVERTED_UPDATER = AtomicReferenceFieldUpdater
-			.newUpdater(ChangeStreamEvent.class, Object.class, "converted");
-
-	private final @Nullable ChangeStreamDocument<Document> raw;
-
-	private final Class<T> targetType;
-	private final MongoConverter converter;
-
-	// accessed through CONVERTED_UPDATER.
-	private volatile @Nullable T converted;
-
-	/**
-	 * @param raw can be {@literal null}.
-	 * @param targetType must not be {@literal null}.
-	 * @param converter must not be {@literal null}.
-	 */
-	public ChangeStreamEvent(@Nullable ChangeStreamDocument<Document> raw, Class<T> targetType,
-			MongoConverter converter) {
-
-		this.raw = raw;
-		this.targetType = targetType;
-		this.converter = converter;
-	}
-
-	/**
-	 * Get the raw {@link ChangeStreamDocument} as emitted by the driver.
-	 *
-	 * @return can be {@literal null}.
-	 */
-	@Nullable
-	public ChangeStreamDocument<Document> getRaw() {
-		return raw;
-	}
-
-	/**
-	 * Get the {@link ChangeStreamDocument#getClusterTime() cluster time} as {@link Instant} the event was emitted at.
-	 *
-	 * @return can be {@literal null}.
-	 */
-	@Nullable
-	public Instant getTimestamp() {
-
-		return getBsonTimestamp() != null ? converter.getConversionService().convert(raw.getClusterTime(), Instant.class)
-				: null;
-	}
-
-	/**
-	 * Get the {@link ChangeStreamDocument#getClusterTime() cluster time}.
-	 *
-	 * @return can be {@literal null}.
-	 * @since 2.2
-	 */
-	@Nullable
-	public BsonTimestamp getBsonTimestamp() {
-		return raw != null ? raw.getClusterTime() : null;
-	}
-
-	/**
-	 * Get the {@link ChangeStreamDocument#getResumeToken() resume token} for this event.
-	 *
-	 * @return can be {@literal null}.
-	 */
-	@Nullable
-	public BsonValue getResumeToken() {
-		return raw != null ? raw.getResumeToken() : null;
-	}
-
-	/**
-	 * Get the {@link ChangeStreamDocument#getOperationType() operation type} for this event.
-	 *
-	 * @return can be {@literal null}.
-	 */
-	@Nullable
-	public OperationType getOperationType() {
-		return raw != null ? raw.getOperationType() : null;
-	}
-
-	/**
-	 * Get the database name the event was originated at.
-	 *
-	 * @return can be {@literal null}.
-	 */
-	@Nullable
-	public String getDatabaseName() {
-		return raw != null ? raw.getNamespace().getDatabaseName() : null;
-	}
-
-	/**
-	 * Get the collection name the event was originated at.
-	 *
-	 * @return can be {@literal null}.
-	 */
-	@Nullable
-	public String getCollectionName() {
-		return raw != null ? raw.getNamespace().getCollectionName() : null;
-	}
-
-	/**
-	 * Get the potentially converted {@link ChangeStreamDocument#getFullDocument()}.
-	 *
-	 * @return {@literal null} when {@link #getRaw()} or {@link ChangeStreamDocument#getFullDocument()} is
-	 *         {@literal null}.
-	 */
-	@Nullable
-	public T getBody() {
-
-		if (raw == null) {
-			return null;
-		}
-
-		Document fullDocument = raw.getFullDocument();
-
-		if (fullDocument == null) {
-			return targetType.cast(fullDocument);
-		}
-
-		return getConverted(fullDocument);
-	}
-
-	@SuppressWarnings("unchecked")
-	private T getConverted(Document fullDocument) {
-		return (T) doGetConverted(fullDocument);
-	}
-
-	private Object doGetConverted(Document fullDocument) {
-
-		Object result = CONVERTED_UPDATER.get(this);
-
-		if (result != null) {
-			return result;
-		}
-
-		if (ClassUtils.isAssignable(Document.class, fullDocument.getClass())) {
-
-			result = converter.read(targetType, fullDocument);
-			return CONVERTED_UPDATER.compareAndSet(this, null, result) ? result : CONVERTED_UPDATER.get(this);
-		}
-
-		if (converter.getConversionService().canConvert(fullDocument.getClass(), targetType)) {
-
-			result = converter.getConversionService().convert(fullDocument, targetType);
-			return CONVERTED_UPDATER.compareAndSet(this, null, result) ? result : CONVERTED_UPDATER.get(this);
-		}
-
-		throw new IllegalArgumentException(String.format("No converter found capable of converting %s to %s",
-				fullDocument.getClass(), targetType));
-	}
-
-	/*
-	 * (non-Javadoc)
-	 * @see java.lang.Object#toString()
-	 */
-	@Override
-	public String toString() {
-		return "ChangeStreamEvent {" + "raw=" + raw + ", targetType=" + targetType + '}';
-	}
-}

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/ChangeStreamOptions.java

@@ -1,367 +0,0 @@
-/*
- * Copyright 2018-2020 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.springframework.data.mongodb.core;
-
-import lombok.EqualsAndHashCode;
-
-import java.time.Instant;
-import java.util.Arrays;
-import java.util.Optional;
-
-import org.bson.BsonDocument;
-import org.bson.BsonTimestamp;
-import org.bson.BsonValue;
-import org.bson.Document;
-
-import org.springframework.data.mongodb.core.aggregation.Aggregation;
-import org.springframework.data.mongodb.core.query.Collation;
-import org.springframework.lang.Nullable;
-import org.springframework.util.Assert;
-import org.springframework.util.ClassUtils;
-import org.springframework.util.ObjectUtils;
-
-import com.mongodb.client.model.changestream.ChangeStreamDocument;
-import com.mongodb.client.model.changestream.FullDocument;
-
-/**
- * Options applicable to MongoDB <a href="https://docs.mongodb.com/manual/changeStreams/">Change Streams</a>. Intended
- * to be used along with {@link org.springframework.data.mongodb.core.messaging.ChangeStreamRequest} in a sync world as
- * well {@link ReactiveMongoOperations} if you prefer it that way.
- *
- * @author Christoph Strobl
- * @author Mark Paluch
- * @since 2.1
- */
-@EqualsAndHashCode
-public class ChangeStreamOptions {
-
-	private @Nullable Object filter;
-	private @Nullable BsonValue resumeToken;
-	private @Nullable FullDocument fullDocumentLookup;
-	private @Nullable Collation collation;
-	private @Nullable Object resumeTimestamp;
-	private Resume resume = Resume.UNDEFINED;
-
-	protected ChangeStreamOptions() {}
-
-	/**
-	 * @return {@link Optional#empty()} if not set.
-	 */
-	public Optional<Object> getFilter() {
-		return Optional.ofNullable(filter);
-	}
-
-	/**
-	 * @return {@link Optional#empty()} if not set.
-	 */
-	public Optional<BsonValue> getResumeToken() {
-		return Optional.ofNullable(resumeToken);
-	}
-
-	/**
-	 * @return {@link Optional#empty()} if not set.
-	 */
-	public Optional<FullDocument> getFullDocumentLookup() {
-		return Optional.ofNullable(fullDocumentLookup);
-	}
-
-	/**
-	 * @return {@link Optional#empty()} if not set.
-	 */
-	public Optional<Collation> getCollation() {
-		return Optional.ofNullable(collation);
-	}
-
-	/**
-	 * @return {@link Optional#empty()} if not set.
-	 */
-	public Optional<Instant> getResumeTimestamp() {
-		return Optional.ofNullable(resumeTimestamp).map(timestamp -> asTimestampOfType(timestamp, Instant.class));
-	}
-
-	/**
-	 * @return {@link Optional#empty()} if not set.
-	 * @since 2.2
-	 */
-	public Optional<BsonTimestamp> getResumeBsonTimestamp() {
-		return Optional.ofNullable(resumeTimestamp).map(timestamp -> asTimestampOfType(timestamp, BsonTimestamp.class));
-	}
-
-	/**
-	 * @return {@literal true} if the change stream should be started after the {@link #getResumeToken() token}.
-	 * @since 2.2
-	 */
-	public boolean isStartAfter() {
-		return Resume.START_AFTER.equals(resume);
-	}
-
-	/**
-	 * @return {@literal true} if the change stream should be resumed after the {@link #getResumeToken() token}.
-	 * @since 2.2
-	 */
-	public boolean isResumeAfter() {
-		return Resume.RESUME_AFTER.equals(resume);
-	}
-
-	/**
-	 * @return empty {@link ChangeStreamOptions}.
-	 */
-	public static ChangeStreamOptions empty() {
-		return ChangeStreamOptions.builder().build();
-	}
-
-	/**
-	 * Obtain a shiny new {@link ChangeStreamOptionsBuilder} and start defining options in this fancy fluent way. Just
-	 * don't forget to call {@link ChangeStreamOptionsBuilder#build() build()} when your're done.
-	 *
-	 * @return new instance of {@link ChangeStreamOptionsBuilder}.
-	 */
-	public static ChangeStreamOptionsBuilder builder() {
-		return new ChangeStreamOptionsBuilder();
-	}
-
-	private static <T> T asTimestampOfType(Object timestamp, Class<T> targetType) {
-		return targetType.cast(doGetTimestamp(timestamp, targetType));
-	}
-
-	private static <T> Object doGetTimestamp(Object timestamp, Class<T> targetType) {
-
-		if (ClassUtils.isAssignableValue(targetType, timestamp)) {
-			return timestamp;
-		}
-
-		if (timestamp instanceof Instant) {
-			return new BsonTimestamp((int) ((Instant) timestamp).getEpochSecond(), 0);
-		}
-
-		if (timestamp instanceof BsonTimestamp) {
-			return Instant.ofEpochSecond(((BsonTimestamp) timestamp).getTime());
-		}
-
-		throw new IllegalArgumentException(
-				"o_O that should actually not happen. The timestamp should be an Instant or a BsonTimestamp but was "
-						+ ObjectUtils.nullSafeClassName(timestamp));
-	}
-
-	/**
-	 * @author Christoph Strobl
-	 * @since 2.2
-	 */
-	enum Resume {
-
-		UNDEFINED,
-
-		/**
-		 * @see com.mongodb.client.ChangeStreamIterable#startAfter(BsonDocument)
-		 */
-		START_AFTER,
-
-		/**
-		 * @see com.mongodb.client.ChangeStreamIterable#resumeAfter(BsonDocument)
-		 */
-		RESUME_AFTER
-	}
-
-	/**
-	 * Builder for creating {@link ChangeStreamOptions}.
-	 *
-	 * @author Christoph Strobl
-	 * @since 2.1
-	 */
-	public static class ChangeStreamOptionsBuilder {
-
-		private @Nullable Object filter;
-		private @Nullable BsonValue resumeToken;
-		private @Nullable FullDocument fullDocumentLookup;
-		private @Nullable Collation collation;
-		private @Nullable Object resumeTimestamp;
-		private Resume resume = Resume.UNDEFINED;
-
-		private ChangeStreamOptionsBuilder() {}
-
-		/**
-		 * Set the collation to use.
-		 *
-		 * @param collation must not be {@literal null} nor {@literal empty}.
-		 * @return this.
-		 */
-		public ChangeStreamOptionsBuilder collation(Collation collation) {
-
-			Assert.notNull(collation, "Collation must not be null nor empty!");
-
-			this.collation = collation;
-			return this;
-		}
-
-		/**
-		 * Set the filter to apply.
-		 * <p/>
-		 * Fields on aggregation expression root level are prefixed to map to fields contained in
-		 * {@link ChangeStreamDocument#getFullDocument() fullDocument}. However {@literal operationType}, {@literal ns},
-		 * {@literal documentKey} and {@literal fullDocument} are reserved words that will be omitted, and therefore taken
-		 * as given, during the mapping procedure. You may want to have a look at the
-		 * <a href="https://docs.mongodb.com/manual/reference/change-events/">structure of Change Events</a>.
-		 * <p/>
-		 * Use {@link org.springframework.data.mongodb.core.aggregation.TypedAggregation} to ensure filter expressions are
-		 * mapped to domain type fields.
-		 *
-		 * @param filter the {@link Aggregation Aggregation pipeline} to apply for filtering events. Must not be
-		 *          {@literal null}.
-		 * @return this.
-		 */
-		public ChangeStreamOptionsBuilder filter(Aggregation filter) {
-
-			Assert.notNull(filter, "Filter must not be null!");
-
-			this.filter = filter;
-			return this;
-		}
-
-		/**
-		 * Set the plain filter chain to apply.
-		 *
-		 * @param filter must not be {@literal null} nor contain {@literal null} values.
-		 * @return this.
-		 */
-		public ChangeStreamOptionsBuilder filter(Document... filter) {
-
-			Assert.noNullElements(filter, "Filter must not contain null values");
-
-			this.filter = Arrays.asList(filter);
-			return this;
-		}
-
-		/**
-		 * Set the resume token (typically a {@link org.bson.BsonDocument} containing a {@link org.bson.BsonBinary binary
-		 * token}) after which to start with listening.
-		 *
-		 * @param resumeToken must not be {@literal null}.
-		 * @return this.
-		 */
-		public ChangeStreamOptionsBuilder resumeToken(BsonValue resumeToken) {
-
-			Assert.notNull(resumeToken, "ResumeToken must not be null!");
-
-			this.resumeToken = resumeToken;
-
-			if (this.resume == Resume.UNDEFINED) {
-				this.resume = Resume.RESUME_AFTER;
-			}
-
-			return this;
-		}
-
-		/**
-		 * Set the {@link FullDocument} lookup to {@link FullDocument#UPDATE_LOOKUP}.
-		 *
-		 * @return this.
-		 * @see #fullDocumentLookup(FullDocument)
-		 */
-		public ChangeStreamOptionsBuilder returnFullDocumentOnUpdate() {
-			return fullDocumentLookup(FullDocument.UPDATE_LOOKUP);
-		}
-
-		/**
-		 * Set the {@link FullDocument} lookup to use.
-		 *
-		 * @param lookup must not be {@literal null}.
-		 * @return this.
-		 */
-		public ChangeStreamOptionsBuilder fullDocumentLookup(FullDocument lookup) {
-
-			Assert.notNull(lookup, "Lookup must not be null!");
-
-			this.fullDocumentLookup = lookup;
-			return this;
-		}
-
-		/**
-		 * Set the cluster time to resume from.
-		 *
-		 * @param resumeTimestamp must not be {@literal null}.
-		 * @return this.
-		 */
-		public ChangeStreamOptionsBuilder resumeAt(Instant resumeTimestamp) {
-
-			Assert.notNull(resumeTimestamp, "ResumeTimestamp must not be null!");
-
-			this.resumeTimestamp = resumeTimestamp;
-			return this;
-		}
-
-		/**
-		 * Set the cluster time to resume from.
-		 *
-		 * @param resumeTimestamp must not be {@literal null}.
-		 * @return this.
-		 * @since 2.2
-		 */
-		public ChangeStreamOptionsBuilder resumeAt(BsonTimestamp resumeTimestamp) {
-
-			Assert.notNull(resumeTimestamp, "ResumeTimestamp must not be null!");
-
-			this.resumeTimestamp = resumeTimestamp;
-			return this;
-		}
-
-		/**
-		 * Set the resume token after which to continue emitting notifications.
-		 *
-		 * @param resumeToken must not be {@literal null}.
-		 * @return this.
-		 * @since 2.2
-		 */
-		public ChangeStreamOptionsBuilder resumeAfter(BsonValue resumeToken) {
-
-			resumeToken(resumeToken);
-			this.resume = Resume.RESUME_AFTER;
-
-			return this;
-		}
-
-		/**
-		 * Set the resume token after which to start emitting notifications.
-		 *
-		 * @param resumeToken must not be {@literal null}.
-		 * @return this.
-		 * @since 2.2
-		 */
-		public ChangeStreamOptionsBuilder startAfter(BsonValue resumeToken) {
-
-			resumeToken(resumeToken);
-			this.resume = Resume.START_AFTER;
-
-			return this;
-		}
-
-		/**
-		 * @return the built {@link ChangeStreamOptions}
-		 */
-		public ChangeStreamOptions build() {
-
-			ChangeStreamOptions options = new ChangeStreamOptions();
-
-			options.filter = this.filter;
-			options.resumeToken = this.resumeToken;
-			options.fullDocumentLookup = this.fullDocumentLookup;
-			options.collation = this.collation;
-			options.resumeTimestamp = this.resumeTimestamp;
-			options.resume = this.resume;
-
-			return options;
-		}
-	}
-}

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/CollectionCallback.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2020 the original author or authors.
+ * Copyright 2010-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,32 +15,12 @@
  */
 package org.springframework.data.mongodb.core;
 
-import org.bson.Document;
-import org.springframework.dao.DataAccessException;
-import org.springframework.lang.Nullable;
-
+import com.mongodb.DBCollection;
 import com.mongodb.MongoException;
-import com.mongodb.client.MongoCollection;
+import org.springframework.dao.DataAccessException;
 
-/**
- * Callback interface for executing actions against a {@link MongoCollection}.
- *
- * @author Mark Pollak
- * @author Grame Rocher
- * @author Oliver Gierke
- * @author John Brisbin
- * @auhtor Christoph Strobl
- * @since 1.0
- */
 public interface CollectionCallback<T> {
 
-	/**
-	 * @param collection never {@literal null}.
-	 * @return can be {@literal null}.
-	 * @throws MongoException
-	 * @throws DataAccessException
-	 */
-	@Nullable
-	T doInCollection(MongoCollection<Document> collection) throws MongoException, DataAccessException;
+	T doInCollection(DBCollection collection) throws MongoException, DataAccessException;
 
 }

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/CollectionOptions.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2020 the original author or authors.
+ * Copyright 2010-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,383 +15,56 @@
  */
 package org.springframework.data.mongodb.core;
 
-import lombok.RequiredArgsConstructor;
-
-import java.util.Optional;
-
-import org.springframework.data.mongodb.core.query.Collation;
-import org.springframework.data.mongodb.core.schema.MongoJsonSchema;
-import org.springframework.data.mongodb.core.validation.Validator;
-import org.springframework.data.util.Optionals;
-import org.springframework.lang.Nullable;
-import org.springframework.util.Assert;
-
-import com.mongodb.client.model.ValidationAction;
-import com.mongodb.client.model.ValidationLevel;
-
 /**
  * Provides a simple wrapper to encapsulate the variety of settings you can use when creating a collection.
- *
+ * 
  * @author Thomas Risberg
- * @author Christoph Strobl
- * @author Mark Paluch
- * @author Andreas Zink
  */
 public class CollectionOptions {
 
-	private @Nullable Long maxDocuments;
-	private @Nullable Long size;
-	private @Nullable Boolean capped;
-	private @Nullable Collation collation;
-	private ValidationOptions validationOptions;
+	private Integer maxDocuments;
+
+	private Integer size;
+
+	private Boolean capped;
 
 	/**
 	 * Constructs a new <code>CollectionOptions</code> instance.
-	 *
-	 * @param size the collection size in bytes, this data space is preallocated. Can be {@literal null}.
-	 * @param maxDocuments the maximum number of documents in the collection. Can be {@literal null}.
+	 * 
+	 * @param size the collection size in bytes, this data space is preallocated
+	 * @param maxDocuments the maximum number of documents in the collection.
 	 * @param capped true to created a "capped" collection (fixed size with auto-FIFO behavior based on insertion order),
-	 *          false otherwise. Can be {@literal null}.
-	 * @deprecated since 2.0 please use {@link CollectionOptions#empty()} as entry point.
+	 *          false otherwise.
 	 */
-	@Deprecated
-	public CollectionOptions(@Nullable Long size, @Nullable Long maxDocuments, @Nullable Boolean capped) {
-		this(size, maxDocuments, capped, null, ValidationOptions.none());
-	}
-
-	private CollectionOptions(@Nullable Long size, @Nullable Long maxDocuments, @Nullable Boolean capped,
-			@Nullable Collation collation, ValidationOptions validationOptions) {
-
+	public CollectionOptions(Integer size, Integer maxDocuments, Boolean capped) {
+		super();
 		this.maxDocuments = maxDocuments;
 		this.size = size;
 		this.capped = capped;
-		this.collation = collation;
-		this.validationOptions = validationOptions;
 	}
 
-	/**
-	 * Create new {@link CollectionOptions} by just providing the {@link Collation} to use.
-	 *
-	 * @param collation must not be {@literal null}.
-	 * @return new {@link CollectionOptions}.
-	 * @since 2.0
-	 */
-	public static CollectionOptions just(Collation collation) {
-
-		Assert.notNull(collation, "Collation must not be null!");
-
-		return new CollectionOptions(null, null, null, collation, ValidationOptions.none());
+	public Integer getMaxDocuments() {
+		return maxDocuments;
 	}
 
-	/**
-	 * Create new empty {@link CollectionOptions}.
-	 *
-	 * @return new {@link CollectionOptions}.
-	 * @since 2.0
-	 */
-	public static CollectionOptions empty() {
-		return new CollectionOptions(null, null, null, null, ValidationOptions.none());
+	public void setMaxDocuments(Integer maxDocuments) {
+		this.maxDocuments = maxDocuments;
 	}
 
-	/**
-	 * Create new {@link CollectionOptions} with already given settings and capped set to {@literal true}. <br />
-	 * <strong>NOTE</strong> Using capped collections requires defining {@link #size(int)}.
-	 *
-	 * @return new {@link CollectionOptions}.
-	 * @since 2.0
-	 */
-	public CollectionOptions capped() {
-		return new CollectionOptions(size, maxDocuments, true, collation, validationOptions);
+	public Integer getSize() {
+		return size;
 	}
 
-	/**
-	 * Create new {@link CollectionOptions} with already given settings and {@code maxDocuments} set to given value.
-	 *
-	 * @param maxDocuments can be {@literal null}.
-	 * @return new {@link CollectionOptions}.
-	 * @since 2.0
-	 */
-	public CollectionOptions maxDocuments(long maxDocuments) {
-		return new CollectionOptions(size, maxDocuments, capped, collation, validationOptions);
+	public void setSize(Integer size) {
+		this.size = size;
 	}
 
-	/**
-	 * Create new {@link CollectionOptions} with already given settings and {@code size} set to given value.
-	 *
-	 * @param size can be {@literal null}.
-	 * @return new {@link CollectionOptions}.
-	 * @since 2.0
-	 */
-	public CollectionOptions size(long size) {
-		return new CollectionOptions(size, maxDocuments, capped, collation, validationOptions);
+	public Boolean getCapped() {
+		return capped;
 	}
 
-	/**
-	 * Create new {@link CollectionOptions} with already given settings and {@code collation} set to given value.
-	 *
-	 * @param collation can be {@literal null}.
-	 * @return new {@link CollectionOptions}.
-	 * @since 2.0
-	 */
-	public CollectionOptions collation(@Nullable Collation collation) {
-		return new CollectionOptions(size, maxDocuments, capped, collation, validationOptions);
+	public void setCapped(Boolean capped) {
+		this.capped = capped;
 	}
 
-	/**
-	 * Create new {@link CollectionOptions} with already given settings and {@code validationOptions} set to given
-	 * {@link MongoJsonSchema}.
-	 *
-	 * @param schema can be {@literal null}.
-	 * @return new {@link CollectionOptions}.
-	 * @since 2.1
-	 */
-	public CollectionOptions schema(@Nullable MongoJsonSchema schema) {
-		return validator(Validator.schema(schema));
-	}
-
-	/**
-	 * Create new {@link CollectionOptions} with already given settings and {@code validationOptions} set to given
-	 * {@link Validator}.
-	 *
-	 * @param validator can be {@literal null}.
-	 * @return new {@link CollectionOptions}.
-	 * @since 2.1
-	 */
-	public CollectionOptions validator(@Nullable Validator validator) {
-		return validation(validationOptions.validator(validator));
-	}
-
-	/**
-	 * Create new {@link CollectionOptions} with already given settings and {@code validationLevel} set to
-	 * {@link ValidationLevel#OFF}.
-	 *
-	 * @return new {@link CollectionOptions}.
-	 * @since 2.1
-	 */
-	public CollectionOptions disableValidation() {
-		return schemaValidationLevel(ValidationLevel.OFF);
-	}
-
-	/**
-	 * Create new {@link CollectionOptions} with already given settings and {@code validationLevel} set to
-	 * {@link ValidationLevel#STRICT}.
-	 *
-	 * @return new {@link CollectionOptions}.
-	 * @since 2.1
-	 */
-	public CollectionOptions strictValidation() {
-		return schemaValidationLevel(ValidationLevel.STRICT);
-	}
-
-	/**
-	 * Create new {@link CollectionOptions} with already given settings and {@code validationLevel} set to
-	 * {@link ValidationLevel#MODERATE}.
-	 *
-	 * @return new {@link CollectionOptions}.
-	 * @since 2.1
-	 */
-	public CollectionOptions moderateValidation() {
-		return schemaValidationLevel(ValidationLevel.MODERATE);
-	}
-
-	/**
-	 * Create new {@link CollectionOptions} with already given settings and {@code validationAction} set to
-	 * {@link ValidationAction#WARN}.
-	 *
-	 * @return new {@link CollectionOptions}.
-	 * @since 2.1
-	 */
-	public CollectionOptions warnOnValidationError() {
-		return schemaValidationAction(ValidationAction.WARN);
-	}
-
-	/**
-	 * Create new {@link CollectionOptions} with already given settings and {@code validationAction} set to
-	 * {@link ValidationAction#ERROR}.
-	 *
-	 * @return new {@link CollectionOptions}.
-	 * @since 2.1
-	 */
-	public CollectionOptions failOnValidationError() {
-		return schemaValidationAction(ValidationAction.ERROR);
-	}
-
-	/**
-	 * Create new {@link CollectionOptions} with already given settings and {@code validationLevel} set given
-	 * {@link ValidationLevel}.
-	 *
-	 * @param validationLevel must not be {@literal null}.
-	 * @return new {@link CollectionOptions}.
-	 * @since 2.1
-	 */
-	public CollectionOptions schemaValidationLevel(ValidationLevel validationLevel) {
-
-		Assert.notNull(validationLevel, "ValidationLevel must not be null!");
-		return validation(validationOptions.validationLevel(validationLevel));
-	}
-
-	/**
-	 * Create new {@link CollectionOptions} with already given settings and {@code validationAction} set given
-	 * {@link ValidationAction}.
-	 *
-	 * @param validationAction must not be {@literal null}.
-	 * @return new {@link CollectionOptions}.
-	 * @since 2.1
-	 */
-	public CollectionOptions schemaValidationAction(ValidationAction validationAction) {
-
-		Assert.notNull(validationAction, "ValidationAction must not be null!");
-		return validation(validationOptions.validationAction(validationAction));
-	}
-
-	/**
-	 * Create new {@link CollectionOptions} with the given {@link ValidationOptions}.
-	 *
-	 * @param validationOptions must not be {@literal null}. Use {@link ValidationOptions#none()} to remove validation.
-	 * @return new {@link CollectionOptions}.
-	 * @since 2.1
-	 */
-	public CollectionOptions validation(ValidationOptions validationOptions) {
-
-		Assert.notNull(validationOptions, "ValidationOptions must not be null!");
-		return new CollectionOptions(size, maxDocuments, capped, collation, validationOptions);
-	}
-
-	/**
-	 * Get the max number of documents the collection should be limited to.
-	 *
-	 * @return {@link Optional#empty()} if not set.
-	 */
-	public Optional<Long> getMaxDocuments() {
-		return Optional.ofNullable(maxDocuments);
-	}
-
-	/**
-	 * Get the {@literal size} in bytes the collection should be limited to.
-	 *
-	 * @return {@link Optional#empty()} if not set.
-	 */
-	public Optional<Long> getSize() {
-		return Optional.ofNullable(size);
-	}
-
-	/**
-	 * Get if the collection should be capped.
-	 *
-	 * @return {@link Optional#empty()} if not set.
-	 * @since 2.0
-	 */
-	public Optional<Boolean> getCapped() {
-		return Optional.ofNullable(capped);
-	}
-
-	/**
-	 * Get the {@link Collation} settings.
-	 *
-	 * @return {@link Optional#empty()} if not set.
-	 * @since 2.0
-	 */
-	public Optional<Collation> getCollation() {
-		return Optional.ofNullable(collation);
-	}
-
-	/**
-	 * Get the {@link MongoJsonSchema} for the collection.
-	 *
-	 * @return {@link Optional#empty()} if not set.
-	 * @since 2.1
-	 */
-	public Optional<ValidationOptions> getValidationOptions() {
-		return validationOptions.isEmpty() ? Optional.empty() : Optional.of(validationOptions);
-	}
-
-	/**
-	 * Encapsulation of ValidationOptions options.
-	 *
-	 * @author Christoph Strobl
-	 * @author Andreas Zink
-	 * @since 2.1
-	 */
-	@RequiredArgsConstructor
-	public static class ValidationOptions {
-
-		private static final ValidationOptions NONE = new ValidationOptions(null, null, null);
-
-		private final @Nullable Validator validator;
-		private final @Nullable ValidationLevel validationLevel;
-		private final @Nullable ValidationAction validationAction;
-
-		/**
-		 * Create an empty {@link ValidationOptions}.
-		 *
-		 * @return never {@literal null}.
-		 */
-		public static ValidationOptions none() {
-			return NONE;
-		}
-
-		/**
-		 * Define the {@link Validator} to be used for document validation.
-		 *
-		 * @param validator can be {@literal null}.
-		 * @return new instance of {@link ValidationOptions}.
-		 */
-		public ValidationOptions validator(@Nullable Validator validator) {
-			return new ValidationOptions(validator, validationLevel, validationAction);
-		}
-
-		/**
-		 * Define the validation level to apply.
-		 *
-		 * @param validationLevel can be {@literal null}.
-		 * @return new instance of {@link ValidationOptions}.
-		 */
-		public ValidationOptions validationLevel(ValidationLevel validationLevel) {
-			return new ValidationOptions(validator, validationLevel, validationAction);
-		}
-
-		/**
-		 * Define the validation action to take.
-		 *
-		 * @param validationAction can be {@literal null}.
-		 * @return new instance of {@link ValidationOptions}.
-		 */
-		public ValidationOptions validationAction(ValidationAction validationAction) {
-			return new ValidationOptions(validator, validationLevel, validationAction);
-		}
-
-		/**
-		 * Get the {@link Validator} to use.
-		 *
-		 * @return never {@literal null}.
-		 */
-		public Optional<Validator> getValidator() {
-			return Optional.ofNullable(validator);
-		}
-
-		/**
-		 * Get the {@code validationLevel} to apply.
-		 *
-		 * @return {@link Optional#empty()} if not set.
-		 */
-		public Optional<ValidationLevel> getValidationLevel() {
-			return Optional.ofNullable(validationLevel);
-		}
-
-		/**
-		 * Get the {@code validationAction} to perform.
-		 *
-		 * @return @return {@link Optional#empty()} if not set.
-		 */
-		public Optional<ValidationAction> getValidationAction() {
-			return Optional.ofNullable(validationAction);
-		}
-
-		/**
-		 * @return {@literal true} if no arguments set.
-		 */
-		boolean isEmpty() {
-			return !Optionals.isAnyPresent(getValidator(), getValidationAction(), getValidationLevel());
-		}
-	}
 }

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/CountQuery.java

@@ -1,227 +0,0 @@
-/*
- * Copyright 2019-2020 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.springframework.data.mongodb.core;
-
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.Collection;
-import java.util.Collections;
-import java.util.List;
-import java.util.Map;
-
-import org.bson.Document;
-
-import org.springframework.data.geo.Point;
-import org.springframework.lang.Nullable;
-import org.springframework.util.ObjectUtils;
-
-/**
- * Value object representing a count query. Count queries using {@code $near} or {@code $nearSphere} require a rewrite
- * to {@code $geoWithin}.
- *
- * @author Christoph Strobl
- * @author Mark Paluch
- * @since 3.0
- */
-class CountQuery {
-
-	private Document source;
-
-	private CountQuery(Document source) {
-		this.source = source;
-	}
-
-	public static CountQuery of(Document source) {
-		return new CountQuery(source);
-	}
-
-	/**
-	 * Returns the query {@link Document} that can be used with {@code countDocuments()}. Potentially rewrites the query
-	 * to be usable with {@code countDocuments()}.
-	 *
-	 * @return the query {@link Document} that can be used with {@code countDocuments()}.
-	 */
-	public Document toQueryDocument() {
-
-		if (!requiresRewrite(source)) {
-			return source;
-		}
-
-		Document target = new Document();
-
-		for (Map.Entry<String, Object> entry : source.entrySet()) {
-
-			if (entry.getValue() instanceof Document && requiresRewrite(entry.getValue())) {
-
-				Document theValue = (Document) entry.getValue();
-				target.putAll(createGeoWithin(entry.getKey(), theValue, source.get("$and")));
-				continue;
-			}
-
-			if (entry.getValue() instanceof Collection && requiresRewrite(entry.getValue())) {
-
-				Collection<?> source = (Collection<?>) entry.getValue();
-
-				target.put(entry.getKey(), rewriteCollection(source));
-				continue;
-			}
-
-			if ("$and".equals(entry.getKey()) && target.containsKey("$and")) {
-				// Expect $and to be processed with Document and createGeoWithin.
-				continue;
-			}
-
-			target.put(entry.getKey(), entry.getValue());
-		}
-
-		return target;
-	}
-
-	/**
-	 * @param valueToInspect
-	 * @return {@code true} if the enclosing element needs to be rewritten.
-	 */
-	private boolean requiresRewrite(Object valueToInspect) {
-
-		if (valueToInspect instanceof Document) {
-			return requiresRewrite((Document) valueToInspect);
-		}
-
-		if (valueToInspect instanceof Collection) {
-			return requiresRewrite((Collection) valueToInspect);
-		}
-
-		return false;
-	}
-
-	private boolean requiresRewrite(Collection<?> collection) {
-
-		for (Object o : collection) {
-			if (o instanceof Document && requiresRewrite((Document) o)) {
-				return true;
-			}
-		}
-
-		return false;
-	}
-
-	private boolean requiresRewrite(Document document) {
-
-		if (containsNear(document)) {
-			return true;
-		}
-
-		for (Object entry : document.values()) {
-
-			if (requiresRewrite(entry)) {
-				return true;
-			}
-		}
-
-		return false;
-	}
-
-	private Collection<Object> rewriteCollection(Collection<?> source) {
-
-		Collection<Object> rewrittenCollection = new ArrayList<>(source.size());
-
-		for (Object item : source) {
-			if (item instanceof Document && requiresRewrite(item)) {
-				rewrittenCollection.add(CountQuery.of((Document) item).toQueryDocument());
-			} else {
-				rewrittenCollection.add(item);
-			}
-		}
-
-		return rewrittenCollection;
-	}
-
-	/**
-	 * Rewrite the near query for field {@code key} to {@code $geoWithin}.
-	 *
-	 * @param key the queried field.
-	 * @param source source {@link Document}.
-	 * @param $and potentially existing {@code $and} condition.
-	 * @return the rewritten query {@link Document}.
-	 */
-	private static Document createGeoWithin(String key, Document source, @Nullable Object $and) {
-
-		boolean spheric = source.containsKey("$nearSphere");
-		Object $near = spheric ? source.get("$nearSphere") : source.get("$near");
-
-		Number maxDistance = source.containsKey("$maxDistance") ? (Number) source.get("$maxDistance") : Double.MAX_VALUE;
-		List<Object> $centerMax = Arrays.asList(toCenterCoordinates($near), maxDistance);
-		Document $geoWithinMax = new Document("$geoWithin",
-				new Document(spheric ? "$centerSphere" : "$center", $centerMax));
-
-		if (!containsNearWithMinDistance(source)) {
-			return new Document(key, $geoWithinMax);
-		}
-
-		Number minDistance = (Number) source.get("$minDistance");
-		List<Object> $centerMin = Arrays.asList(toCenterCoordinates($near), minDistance);
-		Document $geoWithinMin = new Document("$geoWithin",
-				new Document(spheric ? "$centerSphere" : "$center", $centerMin));
-
-		List<Document> criteria = new ArrayList<>();
-
-		if ($and != null) {
-			if ($and instanceof Collection) {
-				criteria.addAll((Collection) $and);
-			} else {
-				throw new IllegalArgumentException(
-						"Cannot rewrite query as it contains an '$and' element that is not a Collection!: Offending element: "
-								+ $and);
-			}
-		}
-
-		criteria.add(new Document("$nor", Collections.singletonList(new Document(key, $geoWithinMin))));
-		criteria.add(new Document(key, $geoWithinMax));
-		return new Document("$and", criteria);
-	}
-
-	private static boolean containsNear(Document source) {
-		return source.containsKey("$near") || source.containsKey("$nearSphere");
-	}
-
-	private static boolean containsNearWithMinDistance(Document source) {
-
-		if (!containsNear(source)) {
-			return false;
-		}
-
-		return source.containsKey("$minDistance");
-	}
-
-	private static Object toCenterCoordinates(Object value) {
-
-		if (ObjectUtils.isArray(value)) {
-			return value;
-		}
-
-		if (value instanceof Point) {
-			return Arrays.asList(((Point) value).getX(), ((Point) value).getY());
-		}
-
-		if (value instanceof Document && ((Document) value).containsKey("x")) {
-
-			Document point = (Document) value;
-			return Arrays.asList(point.get("x"), point.get("y"));
-		}
-
-		return value;
-	}
-}

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/CursorPreparer.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2020 the original author or authors.
+ * Copyright 2002-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,68 +15,19 @@
  */
 package org.springframework.data.mongodb.core;
 
-import java.util.function.Function;
-
-import org.bson.Document;
-import org.springframework.lang.Nullable;
-import org.springframework.util.Assert;
-
-import com.mongodb.ReadPreference;
-import com.mongodb.client.FindIterable;
-import com.mongodb.client.MongoCollection;
+import com.mongodb.DBCursor;
 
 /**
- * Simple callback interface to allow customization of a {@link FindIterable}.
- *
+ * Simple callback interface to allow customization of a {@link DBCursor}.
+ * 
  * @author Oliver Gierke
- * @author Christoph Strobl
  */
-public interface CursorPreparer extends ReadPreferenceAware {
-
-	/**
-	 * Default {@link CursorPreparer} just passing on the given {@link FindIterable}.
-	 *
-	 * @since 2.2
-	 */
-	CursorPreparer NO_OP_PREPARER = (iterable -> iterable);
+interface CursorPreparer {
 
 	/**
 	 * Prepare the given cursor (apply limits, skips and so on). Returns the prepared cursor.
-	 *
+	 * 
 	 * @param cursor
 	 */
-	FindIterable<Document> prepare(FindIterable<Document> cursor);
-
-	/**
-	 * Apply query specific settings to {@link MongoCollection} and initate a find operation returning a
-	 * {@link FindIterable} via the given {@link Function find} function.
-	 *
-	 * @param collection must not be {@literal null}.
-	 * @param find must not be {@literal null}.
-	 * @return
-	 * @throws IllegalArgumentException if one of the required arguments is {@literal null}.
-	 * @since 2.2
-	 */
-	default FindIterable<Document> initiateFind(MongoCollection<Document> collection,
-			Function<MongoCollection<Document>, FindIterable<Document>> find) {
-
-		Assert.notNull(collection, "Collection must not be null!");
-		Assert.notNull(find, "Find function must not be null!");
-
-		if (hasReadPreference()) {
-			collection = collection.withReadPreference(getReadPreference());
-		}
-
-		return prepare(find.apply(collection));
-	}
-
-	/**
-	 * @return the {@link ReadPreference} to apply or {@literal null} if none defined.
-	 * @since 2.2
-	 */
-	@Override
-	@Nullable
-	default ReadPreference getReadPreference() {
-		return null;
-	}
+	DBCursor prepare(DBCursor cursor);
 }

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/DbCallback.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2020 the original author or authors.
+ * Copyright 2010-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,30 +15,11 @@
  */
 package org.springframework.data.mongodb.core;
 
-import org.springframework.dao.DataAccessException;
-import org.springframework.lang.Nullable;
-
+import com.mongodb.DB;
 import com.mongodb.MongoException;
-import com.mongodb.client.MongoDatabase;
+import org.springframework.dao.DataAccessException;
 
-/**
- * Callback interface for executing actions against a {@link MongoDatabase}.
- *
- * @author Mark Pollak
- * @author Graeme Rocher
- * @author Thomas Risberg
- * @author Oliver Gierke
- * @author John Brisbin
- * @author Christoph Strobl
- */
 public interface DbCallback<T> {
 
-	/**
-	 * @param db must not be {@literal null}.
-	 * @return can be {@literal null}.
-	 * @throws MongoException
-	 * @throws DataAccessException
-	 */
-	@Nullable
-	T doInDB(MongoDatabase db) throws MongoException, DataAccessException;
+	T doInDB(DB db) throws MongoException, DataAccessException;
 }

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/DbHolder.java

@@ -0,0 +1,66 @@
+package org.springframework.data.mongodb.core;
+
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+
+import com.mongodb.DB;
+import org.springframework.transaction.support.ResourceHolderSupport;
+import org.springframework.util.Assert;
+
+class DbHolder extends ResourceHolderSupport {
+	private static final Object DEFAULT_KEY = new Object();
+
+	private final Map<Object, DB> dbMap = new ConcurrentHashMap<Object, DB>();
+
+	public DbHolder(DB db) {
+		addDB(db);
+	}
+
+	public DbHolder(Object key, DB db) {
+		addDB(key, db);
+	}
+
+	public DB getDB() {
+		return getDB(DEFAULT_KEY);
+	}
+
+	public DB getDB(Object key) {
+		return this.dbMap.get(key);
+	}
+
+	public DB getAnyDB() {
+		if (!this.dbMap.isEmpty()) {
+			return this.dbMap.values().iterator().next();
+		}
+		return null;
+	}
+
+	public void addDB(DB session) {
+		addDB(DEFAULT_KEY, session);
+	}
+
+	public void addDB(Object key, DB session) {
+		Assert.notNull(key, "Key must not be null");
+		Assert.notNull(session, "DB must not be null");
+		this.dbMap.put(key, session);
+	}
+
+	public DB removeDB(Object key) {
+		return this.dbMap.remove(key);
+	}
+
+	public boolean containsDB(DB session) {
+		return this.dbMap.containsValue(session);
+	}
+
+	public boolean isEmpty() {
+		return this.dbMap.isEmpty();
+	}
+
+	public boolean doesNotHoldNonDefaultDB() {
+		synchronized (this.dbMap) {
+			return this.dbMap.isEmpty() || (this.dbMap.size() == 1 && this.dbMap.containsKey(DEFAULT_KEY));
+		}
+	}
+
+}

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/DefaultBulkOperations.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2015-2020 the original author or authors.
+ * Copyright 2015-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -18,39 +18,27 @@ package org.springframework.data.mongodb.core;
 import lombok.NonNull;
 import lombok.Value;
 
-import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
-import java.util.Optional;
-import java.util.stream.Collectors;
 
-import org.bson.Document;
-import org.bson.conversions.Bson;
-import org.springframework.context.ApplicationEventPublisher;
+import org.springframework.dao.DataAccessException;
 import org.springframework.dao.support.PersistenceExceptionTranslator;
-import org.springframework.data.mapping.callback.EntityCallbacks;
 import org.springframework.data.mongodb.core.convert.QueryMapper;
 import org.springframework.data.mongodb.core.convert.UpdateMapper;
 import org.springframework.data.mongodb.core.mapping.MongoPersistentEntity;
-import org.springframework.data.mongodb.core.mapping.event.AfterSaveEvent;
-import org.springframework.data.mongodb.core.mapping.event.BeforeConvertCallback;
-import org.springframework.data.mongodb.core.mapping.event.BeforeConvertEvent;
-import org.springframework.data.mongodb.core.mapping.event.BeforeSaveCallback;
-import org.springframework.data.mongodb.core.mapping.event.BeforeSaveEvent;
-import org.springframework.data.mongodb.core.mapping.event.MongoMappingEvent;
-import org.springframework.data.mongodb.core.query.Collation;
 import org.springframework.data.mongodb.core.query.Query;
 import org.springframework.data.mongodb.core.query.Update;
-import org.springframework.data.mongodb.core.query.UpdateDefinition;
-import org.springframework.data.mongodb.core.query.UpdateDefinition.ArrayFilter;
 import org.springframework.data.util.Pair;
-import org.springframework.lang.Nullable;
 import org.springframework.util.Assert;
 
+import com.mongodb.BasicDBObject;
+import com.mongodb.BulkWriteException;
+import com.mongodb.BulkWriteOperation;
+import com.mongodb.BulkWriteRequestBuilder;
+import com.mongodb.BulkWriteResult;
+import com.mongodb.DBCollection;
+import com.mongodb.DBObject;
 import com.mongodb.WriteConcern;
-import com.mongodb.bulk.BulkWriteResult;
-import com.mongodb.client.MongoCollection;
-import com.mongodb.client.model.*;
 
 /**
  * Default implementation for {@link BulkOperations}.
@@ -59,9 +47,6 @@ import com.mongodb.client.model.*;
  * @author Oliver Gierke
  * @author Christoph Strobl
  * @author Mark Paluch
- * @author Minsu Kim
- * @author Jens Schauder
- * @author Michail Nikolaev
  * @since 1.9
  */
 class DefaultBulkOperations implements BulkOperations {
@@ -69,12 +54,12 @@ class DefaultBulkOperations implements BulkOperations {
 	private final MongoOperations mongoOperations;
 	private final String collectionName;
 	private final BulkOperationContext bulkOperationContext;
-	private final List<SourceAwareWriteModelHolder> models = new ArrayList<>();
 
 	private PersistenceExceptionTranslator exceptionTranslator;
-	private @Nullable WriteConcern defaultWriteConcern;
+	private WriteConcernResolver writeConcernResolver;
+	private WriteConcern defaultWriteConcern;
 
-	private BulkWriteOptions bulkOptions;
+	private BulkWriteOperation bulk;
 
 	/**
 	 * Creates a new {@link DefaultBulkOperations} for the given {@link MongoOperations}, collection name and
@@ -83,7 +68,7 @@ class DefaultBulkOperations implements BulkOperations {
 	 * @param mongoOperations must not be {@literal null}.
 	 * @param collectionName must not be {@literal null}.
 	 * @param bulkOperationContext must not be {@literal null}.
-	 * @since 2.0
+	 * @since 1.10.5
 	 */
 	DefaultBulkOperations(MongoOperations mongoOperations, String collectionName,
 			BulkOperationContext bulkOperationContext) {
@@ -96,7 +81,8 @@ class DefaultBulkOperations implements BulkOperations {
 		this.collectionName = collectionName;
 		this.bulkOperationContext = bulkOperationContext;
 		this.exceptionTranslator = new MongoExceptionTranslator();
-		this.bulkOptions = getBulkWriteOptions(bulkOperationContext.getBulkMode());
+		this.writeConcernResolver = DefaultWriteConcernResolver.INSTANCE;
+		this.bulk = getBulkWriteOptions(bulkOperationContext.getBulkMode());
 	}
 
 	/**
@@ -104,16 +90,26 @@ class DefaultBulkOperations implements BulkOperations {
 	 *
 	 * @param exceptionTranslator can be {@literal null}.
 	 */
-	public void setExceptionTranslator(@Nullable PersistenceExceptionTranslator exceptionTranslator) {
+	public void setExceptionTranslator(PersistenceExceptionTranslator exceptionTranslator) {
 		this.exceptionTranslator = exceptionTranslator == null ? new MongoExceptionTranslator() : exceptionTranslator;
 	}
 
+	/**
+	 * Configures the {@link WriteConcernResolver} to be used. Defaults to {@link DefaultWriteConcernResolver}.
+	 *
+	 * @param writeConcernResolver can be {@literal null}.
+	 */
+	public void setWriteConcernResolver(WriteConcernResolver writeConcernResolver) {
+		this.writeConcernResolver = writeConcernResolver == null ? DefaultWriteConcernResolver.INSTANCE
+				: writeConcernResolver;
+	}
+
 	/**
 	 * Configures the default {@link WriteConcern} to be used. Defaults to {@literal null}.
 	 *
 	 * @param defaultWriteConcern can be {@literal null}.
 	 */
-	void setDefaultWriteConcern(@Nullable WriteConcern defaultWriteConcern) {
+	void setDefaultWriteConcern(WriteConcern defaultWriteConcern) {
 		this.defaultWriteConcern = defaultWriteConcern;
 	}
 
@@ -126,10 +122,15 @@ class DefaultBulkOperations implements BulkOperations {
 
 		Assert.notNull(document, "Document must not be null!");
 
-		maybeEmitEvent(new BeforeConvertEvent<>(document, collectionName));
-		Object source = maybeInvokeBeforeConvertCallback(document);
-		addModel(source, new InsertOneModel<>(getMappedObject(source)));
+		if (document instanceof DBObject) {
 
+			bulk.insert((DBObject) document);
+			return this;
+		}
+
+		DBObject sink = new BasicDBObject();
+		mongoOperations.getConverter().write(document, sink);
+		bulk.insert(sink);
 		return this;
 	}
 
@@ -142,7 +143,9 @@ class DefaultBulkOperations implements BulkOperations {
 
 		Assert.notNull(documents, "Documents must not be null!");
 
-		documents.forEach(this::insert);
+		for (Object document : documents) {
+			insert(document);
+		}
 
 		return this;
 	}
@@ -239,10 +242,7 @@ class DefaultBulkOperations implements BulkOperations {
 
 		Assert.notNull(query, "Query must not be null!");
 
-		DeleteOptions deleteOptions = new DeleteOptions();
-		query.getCollation().map(Collation::toMongoCollation).ifPresent(deleteOptions::collation);
-
-		addModel(query, new DeleteManyModel<>(query.getQueryObject(), deleteOptions));
+		bulk.find(getMappedQuery(query.getQueryObject())).remove();
 
 		return this;
 	}
@@ -263,80 +263,29 @@ class DefaultBulkOperations implements BulkOperations {
 		return this;
 	}
 
-	/*
-	 * (non-Javadoc)
-	 * @see org.springframework.data.mongodb.core.BulkOperations#replaceOne(org.springframework.data.mongodb.core.query.Query, java.lang.Object, org.springframework.data.mongodb.core.FindAndReplaceOptions)
-	 */
-	@Override
-	public BulkOperations replaceOne(Query query, Object replacement, FindAndReplaceOptions options) {
-
-		Assert.notNull(query, "Query must not be null!");
-		Assert.notNull(replacement, "Replacement must not be null!");
-		Assert.notNull(options, "Options must not be null!");
-
-		ReplaceOptions replaceOptions = new ReplaceOptions();
-		replaceOptions.upsert(options.isUpsert());
-		query.getCollation().map(Collation::toMongoCollation).ifPresent(replaceOptions::collation);
-
-		maybeEmitEvent(new BeforeConvertEvent<>(replacement, collectionName));
-		Object source = maybeInvokeBeforeConvertCallback(replacement);
-		addModel(source,
-				new ReplaceOneModel<>(getMappedQuery(query.getQueryObject()), getMappedObject(source), replaceOptions));
-
-		return this;
-	}
-
 	/*
 	 * (non-Javadoc)
 	 * @see org.springframework.data.mongodb.core.BulkOperations#executeBulk()
 	 */
 	@Override
-	public com.mongodb.bulk.BulkWriteResult execute() {
+	public BulkWriteResult execute() {
+
+		MongoAction action = new MongoAction(defaultWriteConcern, MongoActionOperation.BULK, collectionName,
+				bulkOperationContext.getEntityType(), null, null);
+		WriteConcern writeConcern = writeConcernResolver.resolve(action);
 
 		try {
+			return writeConcern == null ? bulk.execute() : bulk.execute(writeConcern);
+		} catch (BulkWriteException o_O) {
 
-			com.mongodb.bulk.BulkWriteResult result = mongoOperations.execute(collectionName, this::bulkWriteTo);
+			DataAccessException toThrow = exceptionTranslator.translateExceptionIfPossible(o_O);
+			throw toThrow == null ? o_O : toThrow;
 
-			Assert.state(result != null, "Result must not be null.");
-
-			models.forEach(this::maybeEmitAfterSaveEvent);
-
-			return result;
 		} finally {
-			this.bulkOptions = getBulkWriteOptions(bulkOperationContext.getBulkMode());
+			this.bulk = getBulkWriteOptions(bulkOperationContext.getBulkMode());
 		}
 	}
 
-	private BulkWriteResult bulkWriteTo(MongoCollection<Document> collection) {
-
-		if (defaultWriteConcern != null) {
-			collection = collection.withWriteConcern(defaultWriteConcern);
-		}
-
-		return collection.bulkWrite( //
-				models.stream() //
-						.map(this::extractAndMapWriteModel) //
-						.collect(Collectors.toList()), //
-				bulkOptions);
-	}
-
-	private WriteModel<Document> extractAndMapWriteModel(SourceAwareWriteModelHolder it) {
-
-		maybeEmitBeforeSaveEvent(it);
-
-		if (it.getModel() instanceof InsertOneModel) {
-
-			Document target = ((InsertOneModel<Document>) it.getModel()).getDocument();
-			maybeInvokeBeforeSaveCallback(it.getSource(), target);
-		} else if (it.getModel() instanceof ReplaceOneModel) {
-
-			Document target = ((ReplaceOneModel<Document>) it.getModel()).getReplacement();
-			maybeInvokeBeforeSaveCallback(it.getSource(), target);
-		}
-
-		return mapWriteModel(it.getModel());
-	}
-
 	/**
 	 * Performs update and upsert bulk operations.
 	 *
@@ -351,167 +300,50 @@ class DefaultBulkOperations implements BulkOperations {
 		Assert.notNull(query, "Query must not be null!");
 		Assert.notNull(update, "Update must not be null!");
 
-		UpdateOptions options = computeUpdateOptions(query, update, upsert);
+		BulkWriteRequestBuilder builder = bulk.find(getMappedQuery(query.getQueryObject()));
+
+		if (upsert) {
+
+			if (multi) {
+				builder.upsert().update(getMappedUpdate(update.getUpdateObject()));
+			} else {
+				builder.upsert().updateOne(getMappedUpdate(update.getUpdateObject()));
+			}
 
-		if (multi) {
-			addModel(update, new UpdateManyModel<>(query.getQueryObject(), update.getUpdateObject(), options));
 		} else {
-			addModel(update, new UpdateOneModel<>(query.getQueryObject(), update.getUpdateObject(), options));
+
+			if (multi) {
+				builder.update(getMappedUpdate(update.getUpdateObject()));
+			} else {
+				builder.updateOne(getMappedUpdate(update.getUpdateObject()));
+			}
 		}
 
 		return this;
 	}
 
-	private WriteModel<Document> mapWriteModel(WriteModel<Document> writeModel) {
-
-		if (writeModel instanceof UpdateOneModel) {
-
-			UpdateOneModel<Document> model = (UpdateOneModel<Document>) writeModel;
-
-			return new UpdateOneModel<>(getMappedQuery(model.getFilter()), getMappedUpdate(model.getUpdate()),
-					model.getOptions());
-		}
-
-		if (writeModel instanceof UpdateManyModel) {
-
-			UpdateManyModel<Document> model = (UpdateManyModel<Document>) writeModel;
-
-			return new UpdateManyModel<>(getMappedQuery(model.getFilter()), getMappedUpdate(model.getUpdate()),
-					model.getOptions());
-		}
-
-		if (writeModel instanceof DeleteOneModel) {
-
-			DeleteOneModel<Document> model = (DeleteOneModel<Document>) writeModel;
-
-			return new DeleteOneModel<>(getMappedQuery(model.getFilter()), model.getOptions());
-		}
-
-		if (writeModel instanceof DeleteManyModel) {
-
-			DeleteManyModel<Document> model = (DeleteManyModel<Document>) writeModel;
-
-			return new DeleteManyModel<>(getMappedQuery(model.getFilter()), model.getOptions());
-		}
-
-		return writeModel;
-	}
-
-	private Bson getMappedUpdate(Bson update) {
+	private DBObject getMappedUpdate(DBObject update) {
 		return bulkOperationContext.getUpdateMapper().getMappedObject(update, bulkOperationContext.getEntity());
 	}
 
-	private Bson getMappedQuery(Bson query) {
+	private DBObject getMappedQuery(DBObject query) {
 		return bulkOperationContext.getQueryMapper().getMappedObject(query, bulkOperationContext.getEntity());
 	}
 
-	private Document getMappedObject(Object source) {
+	private BulkWriteOperation getBulkWriteOptions(BulkMode bulkMode) {
 
-		if (source instanceof Document) {
-			return (Document) source;
-		}
-
-		Document sink = new Document();
-
-		mongoOperations.getConverter().write(source, sink);
-		return sink;
-	}
-
-	private void addModel(Object source, WriteModel<Document> model) {
-		models.add(new SourceAwareWriteModelHolder(source, model));
-	}
-
-	private void maybeEmitBeforeSaveEvent(SourceAwareWriteModelHolder it) {
-
-		if (it.getModel() instanceof InsertOneModel) {
-
-			Document target = ((InsertOneModel<Document>) it.getModel()).getDocument();
-			maybeEmitEvent(new BeforeSaveEvent<>(it.getSource(), target, collectionName));
-		} else if (it.getModel() instanceof ReplaceOneModel) {
-
-			Document target = ((ReplaceOneModel<Document>) it.getModel()).getReplacement();
-			maybeEmitEvent(new BeforeSaveEvent<>(it.getSource(), target, collectionName));
-		}
-	}
-
-	private void maybeEmitAfterSaveEvent(SourceAwareWriteModelHolder it) {
-
-		if (it.getModel() instanceof InsertOneModel) {
-
-			Document target = ((InsertOneModel<Document>) it.getModel()).getDocument();
-			maybeEmitEvent(new AfterSaveEvent<>(it.getSource(), target, collectionName));
-		} else if (it.getModel() instanceof ReplaceOneModel) {
-
-			Document target = ((ReplaceOneModel<Document>) it.getModel()).getReplacement();
-			maybeEmitEvent(new AfterSaveEvent<>(it.getSource(), target, collectionName));
-		}
-	}
-
-	private <E extends MongoMappingEvent<T>, T> E maybeEmitEvent(E event) {
-
-		if (null != bulkOperationContext.getEventPublisher()) {
-			bulkOperationContext.getEventPublisher().publishEvent(event);
-		}
-
-		return event;
-	}
-
-	private Object maybeInvokeBeforeConvertCallback(Object value) {
-
-		if (bulkOperationContext.getEntityCallbacks() == null) {
-			return value;
-		}
-
-		return bulkOperationContext.getEntityCallbacks().callback(BeforeConvertCallback.class, value, collectionName);
-	}
-
-	private Object maybeInvokeBeforeSaveCallback(Object value, Document mappedDocument) {
-
-		if (bulkOperationContext.getEntityCallbacks() == null) {
-			return value;
-		}
-
-		return bulkOperationContext.getEntityCallbacks().callback(BeforeSaveCallback.class, value, mappedDocument,
-				collectionName);
-	}
-
-	private static BulkWriteOptions getBulkWriteOptions(BulkMode bulkMode) {
-
-		BulkWriteOptions options = new BulkWriteOptions();
+		DBCollection collection = mongoOperations.getCollection(collectionName);
 
 		switch (bulkMode) {
 			case ORDERED:
-				return options.ordered(true);
+				return collection.initializeOrderedBulkOperation();
 			case UNORDERED:
-				return options.ordered(false);
+				return collection.initializeUnorderedBulkOperation();
 		}
 
 		throw new IllegalStateException("BulkMode was null!");
 	}
 
-	/**
-	 * @param filterQuery The {@link Query} to read a potential {@link Collation} from. Must not be {@literal null}.
-	 * @param update The {@link Update} to apply
-	 * @param upsert flag to indicate if document should be upserted.
-	 * @return new instance of {@link UpdateOptions}.
-	 */
-	private static UpdateOptions computeUpdateOptions(Query filterQuery, UpdateDefinition update, boolean upsert) {
-
-		UpdateOptions options = new UpdateOptions();
-		options.upsert(upsert);
-
-		if (update.hasArrayFilters()) {
-			List<Document> list = new ArrayList<>(update.getArrayFilters().size());
-			for (ArrayFilter arrayFilter : update.getArrayFilters()) {
-				list.add(arrayFilter.asDocument());
-			}
-			options.arrayFilters(list);
-		}
-
-		filterQuery.getCollation().map(Collation::toMongoCollation).ifPresent(options::collation);
-		return options;
-	}
-
 	/**
 	 * {@link BulkOperationContext} holds information about
 	 * {@link org.springframework.data.mongodb.core.BulkOperations.BulkMode} the entity in use as well as references to
@@ -524,23 +356,12 @@ class DefaultBulkOperations implements BulkOperations {
 	static class BulkOperationContext {
 
 		@NonNull BulkMode bulkMode;
-		@NonNull Optional<? extends MongoPersistentEntity<?>> entity;
+		MongoPersistentEntity<?> entity;
 		@NonNull QueryMapper queryMapper;
 		@NonNull UpdateMapper updateMapper;
-		ApplicationEventPublisher eventPublisher;
-		EntityCallbacks entityCallbacks;
-	}
 
-	/**
-	 * Value object chaining together an actual source with its {@link WriteModel} representation.
-	 *
-	 * @since 2.2
-	 * @author Christoph Strobl
-	 */
-	@Value
-	private static class SourceAwareWriteModelHolder {
-
-		Object source;
-		WriteModel<Document> model;
+		Class<?> getEntityType() {
+			return entity != null ? entity.getType() : null;
+		}
 	}
 }

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/DefaultIndexOperations.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2020 the original author or authors.
+ * Copyright 2011-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -19,153 +19,127 @@ import java.util.ArrayList;
 import java.util.Collection;
 import java.util.List;
 
-import org.bson.Document;
 import org.springframework.dao.DataAccessException;
-import org.springframework.data.mongodb.MongoDbFactory;
 import org.springframework.data.mongodb.core.convert.QueryMapper;
 import org.springframework.data.mongodb.core.index.IndexDefinition;
 import org.springframework.data.mongodb.core.index.IndexInfo;
-import org.springframework.data.mongodb.core.index.IndexOperations;
 import org.springframework.data.mongodb.core.mapping.MongoPersistentEntity;
-import org.springframework.lang.Nullable;
 import org.springframework.util.Assert;
 
+import com.mongodb.DBCollection;
+import com.mongodb.DBObject;
 import com.mongodb.MongoException;
-import com.mongodb.client.MongoCollection;
-import com.mongodb.client.MongoCursor;
-import com.mongodb.client.model.IndexOptions;
 
 /**
  * Default implementation of {@link IndexOperations}.
- *
+ * 
  * @author Mark Pollack
  * @author Oliver Gierke
  * @author Komi Innocent
  * @author Christoph Strobl
- * @author Mark Paluch
  */
 public class DefaultIndexOperations implements IndexOperations {
 
 	private static final String PARTIAL_FILTER_EXPRESSION_KEY = "partialFilterExpression";
 
+	private final MongoOperations mongoOperations;
 	private final String collectionName;
 	private final QueryMapper mapper;
-	private final @Nullable Class<?> type;
-
-	private MongoOperations mongoOperations;
+	private final Class<?> type;
 
 	/**
 	 * Creates a new {@link DefaultIndexOperations}.
-	 *
-	 * @param mongoDbFactory must not be {@literal null}.
+	 * 
+	 * @param mongoOperations must not be {@literal null}.
 	 * @param collectionName must not be {@literal null}.
-	 * @param queryMapper must not be {@literal null}.
-	 * @deprecated since 2.1. Please use
-	 *             {@link DefaultIndexOperations#DefaultIndexOperations(MongoOperations, String, Class)}.
 	 */
-	@Deprecated
-	public DefaultIndexOperations(MongoDbFactory mongoDbFactory, String collectionName, QueryMapper queryMapper) {
-		this(mongoDbFactory, collectionName, queryMapper, null);
-	}
-
-	/**
-	 * Creates a new {@link DefaultIndexOperations}.
-	 *
-	 * @param mongoDbFactory must not be {@literal null}.
-	 * @param collectionName must not be {@literal null}.
-	 * @param queryMapper must not be {@literal null}.
-	 * @param type Type used for mapping potential partial index filter expression. Can be {@literal null}.
-	 * @since 1.10
-	 * @deprecated since 2.1. Please use
-	 *             {@link DefaultIndexOperations#DefaultIndexOperations(MongoOperations, String, Class)}.
-	 */
-	@Deprecated
-	public DefaultIndexOperations(MongoDbFactory mongoDbFactory, String collectionName, QueryMapper queryMapper,
-			@Nullable Class<?> type) {
-
-		Assert.notNull(mongoDbFactory, "MongoDbFactory must not be null!");
-		Assert.notNull(collectionName, "Collection name can not be null!");
-		Assert.notNull(queryMapper, "QueryMapper must not be null!");
-
-		this.collectionName = collectionName;
-		this.mapper = queryMapper;
-		this.type = type;
-		this.mongoOperations = new MongoTemplate(mongoDbFactory);
+	public DefaultIndexOperations(MongoOperations mongoOperations, String collectionName) {
+		this(mongoOperations, collectionName, null);
 	}
 
 	/**
 	 * Creates a new {@link DefaultIndexOperations}.
 	 *
 	 * @param mongoOperations must not be {@literal null}.
-	 * @param collectionName must not be {@literal null} or empty.
-	 * @param type can be {@literal null}.
-	 * @since 2.1
+	 * @param collectionName must not be {@literal null}.
+	 * @param type Type used for mapping potential partial index filter expression. Can be {@literal null}.
+	 * @since 1.10
 	 */
-	public DefaultIndexOperations(MongoOperations mongoOperations, String collectionName, @Nullable Class<?> type) {
+	public DefaultIndexOperations(MongoOperations mongoOperations, String collectionName, Class<?> type) {
 
 		Assert.notNull(mongoOperations, "MongoOperations must not be null!");
-		Assert.hasText(collectionName, "Collection name must not be null or empty!");
+		Assert.notNull(collectionName, "Collection name can not be null!");
 
 		this.mongoOperations = mongoOperations;
-		this.mapper = new QueryMapper(mongoOperations.getConverter());
 		this.collectionName = collectionName;
+		this.mapper = new QueryMapper(mongoOperations.getConverter());
 		this.type = type;
 	}
 
 	/*
 	 * (non-Javadoc)
-	 * @see org.springframework.data.mongodb.core.index.IndexOperations#ensureIndex(org.springframework.data.mongodb.core.index.IndexDefinition)
+	 * @see org.springframework.data.mongodb.core.IndexOperations#ensureIndex(org.springframework.data.mongodb.core.index.IndexDefinition)
 	 */
-	public String ensureIndex(final IndexDefinition indexDefinition) {
+	public void ensureIndex(final IndexDefinition indexDefinition) {
 
-		return execute(collection -> {
+		mongoOperations.execute(collectionName, new CollectionCallback<Object>() {
+			public Object doInCollection(DBCollection collection) throws MongoException, DataAccessException {
+				DBObject indexOptions = indexDefinition.getIndexOptions();
 
-			MongoPersistentEntity<?> entity = lookupPersistentEntity(type, collectionName);
+				if (indexOptions != null && indexOptions.containsField(PARTIAL_FILTER_EXPRESSION_KEY)) {
 
-			IndexOptions indexOptions = IndexConverters.indexDefinitionToIndexOptionsConverter().convert(indexDefinition);
+					Assert.isInstanceOf(DBObject.class, indexOptions.get(PARTIAL_FILTER_EXPRESSION_KEY));
 
-			indexOptions = addPartialFilterIfPresent(indexOptions, indexDefinition.getIndexOptions(), entity);
-			indexOptions = addDefaultCollationIfRequired(indexOptions, entity);
+					indexOptions.put(PARTIAL_FILTER_EXPRESSION_KEY,
+							mapper.getMappedObject((DBObject) indexOptions.get(PARTIAL_FILTER_EXPRESSION_KEY),
+									lookupPersistentEntity(type, collectionName)));
+				}
 
-			Document mappedKeys = mapper.getMappedSort(indexDefinition.getIndexKeys(), entity);
-			return collection.createIndex(mappedKeys, indexOptions);
-		});
-	}
-
-	@Nullable
-	private MongoPersistentEntity<?> lookupPersistentEntity(@Nullable Class<?> entityType, String collection) {
-
-		if (entityType != null) {
-			return mapper.getMappingContext().getRequiredPersistentEntity(entityType);
-		}
-
-		Collection<? extends MongoPersistentEntity<?>> entities = mapper.getMappingContext().getPersistentEntities();
-
-		for (MongoPersistentEntity<?> entity : entities) {
-			if (entity.getCollection().equals(collection)) {
-				return entity;
+				if (indexOptions != null) {
+					collection.createIndex(indexDefinition.getIndexKeys(), indexOptions);
+				} else {
+					collection.createIndex(indexDefinition.getIndexKeys());
+				}
+				return null;
 			}
-		}
 
-		return null;
+			private MongoPersistentEntity<?> lookupPersistentEntity(Class<?> entityType, String collection) {
+
+				if (entityType != null) {
+					return mongoOperations.getConverter().getMappingContext().getPersistentEntity(entityType);
+				}
+
+				Collection<? extends MongoPersistentEntity<?>> entities = mongoOperations.getConverter().getMappingContext()
+						.getPersistentEntities();
+
+				for (MongoPersistentEntity<?> entity : entities) {
+					if (entity.getCollection().equals(collection)) {
+						return entity;
+					}
+				}
+
+				return null;
+			}
+		});
 	}
 
 	/*
 	 * (non-Javadoc)
-	 * @see org.springframework.data.mongodb.core.index.IndexOperations#dropIndex(java.lang.String)
+	 * @see org.springframework.data.mongodb.core.IndexOperations#dropIndex(java.lang.String)
 	 */
 	public void dropIndex(final String name) {
-
-		execute(collection -> {
-			collection.dropIndex(name);
-			return null;
+		mongoOperations.execute(collectionName, new CollectionCallback<Void>() {
+			public Void doInCollection(DBCollection collection) throws MongoException, DataAccessException {
+				collection.dropIndex(name);
+				return null;
+			}
 		});
 
 	}
 
 	/*
 	 * (non-Javadoc)
-	 * @see org.springframework.data.mongodb.core.index.IndexOperations#dropAllIndexes()
+	 * @see org.springframework.data.mongodb.core.IndexOperations#dropAllIndexes()
 	 */
 	public void dropAllIndexes() {
 		dropIndex("*");
@@ -173,65 +147,43 @@ public class DefaultIndexOperations implements IndexOperations {
 
 	/*
 	 * (non-Javadoc)
-	 * @see org.springframework.data.mongodb.core.index.IndexOperations#getIndexInfo()
+	 * @see org.springframework.data.mongodb.core.IndexOperations#resetIndexCache()
+	 */
+	@Deprecated
+	public void resetIndexCache() {
+		mongoOperations.execute(collectionName, new CollectionCallback<Void>() {
+			public Void doInCollection(DBCollection collection) throws MongoException, DataAccessException {
+
+				ReflectiveDBCollectionInvoker.resetIndexCache(collection);
+				return null;
+			}
+		});
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see org.springframework.data.mongodb.core.IndexOperations#getIndexInfo()
 	 */
 	public List<IndexInfo> getIndexInfo() {
 
-		return execute(new CollectionCallback<List<IndexInfo>>() {
+		return mongoOperations.execute(collectionName, new CollectionCallback<List<IndexInfo>>() {
 
-			public List<IndexInfo> doInCollection(MongoCollection<Document> collection)
-					throws MongoException, DataAccessException {
+			public List<IndexInfo> doInCollection(DBCollection collection) throws MongoException, DataAccessException {
 
-				MongoCursor<Document> cursor = collection.listIndexes(Document.class).iterator();
-				return getIndexData(cursor);
+				List<DBObject> dbObjectList = collection.getIndexInfo();
+				return getIndexData(dbObjectList);
 			}
 
-			private List<IndexInfo> getIndexData(MongoCursor<Document> cursor) {
+			private List<IndexInfo> getIndexData(List<DBObject> dbObjectList) {
 
-				List<IndexInfo> indexInfoList = new ArrayList<>();
+				List<IndexInfo> indexInfoList = new ArrayList<IndexInfo>();
 
-				while (cursor.hasNext()) {
-
-					Document ix = cursor.next();
-					IndexInfo indexInfo = IndexConverters.documentToIndexInfoConverter().convert(ix);
-					indexInfoList.add(indexInfo);
+				for (DBObject ix : dbObjectList) {
+					indexInfoList.add(IndexInfo.indexInfoOf(ix));
 				}
 
 				return indexInfoList;
 			}
 		});
 	}
-
-	@Nullable
-	public <T> T execute(CollectionCallback<T> callback) {
-
-		Assert.notNull(callback, "CollectionCallback must not be null!");
-
-		if (type != null) {
-			return mongoOperations.execute(type, callback);
-		}
-
-		return mongoOperations.execute(collectionName, callback);
-	}
-
-	private IndexOptions addPartialFilterIfPresent(IndexOptions ops, Document sourceOptions,
-			@Nullable MongoPersistentEntity<?> entity) {
-
-		if (!sourceOptions.containsKey(PARTIAL_FILTER_EXPRESSION_KEY)) {
-			return ops;
-		}
-
-		Assert.isInstanceOf(Document.class, sourceOptions.get(PARTIAL_FILTER_EXPRESSION_KEY));
-		return ops.partialFilterExpression(
-				mapper.getMappedSort((Document) sourceOptions.get(PARTIAL_FILTER_EXPRESSION_KEY), entity));
-	}
-
-	private static IndexOptions addDefaultCollationIfRequired(IndexOptions ops, MongoPersistentEntity<?> entity) {
-
-		if (ops.getCollation() != null || entity == null || !entity.hasCollation()) {
-			return ops;
-		}
-
-		return ops.collation(entity.getCollation().toMongoCollation());
-	}
 }