diff --git a/multi-binder-samples/multi-binder-sendto-dest-header/.mvn b/multi-binder-samples/multi-binder-sendto-dest-header/.mvn new file mode 120000 index 0000000..19172e1 --- /dev/null +++ b/multi-binder-samples/multi-binder-sendto-dest-header/.mvn @@ -0,0 +1 @@ +../.mvn \ No newline at end of file diff --git a/multi-binder-samples/multi-binder-sendto-dest-header/README.adoc b/multi-binder-samples/multi-binder-sendto-dest-header/README.adoc new file mode 100644 index 0000000..c37e4ff --- /dev/null +++ b/multi-binder-samples/multi-binder-sendto-dest-header/README.adoc @@ -0,0 +1,27 @@ +== Spring Cloud Stream Multibinder Application with Different Systems + +This example shows how to run a Spring Cloud Stream application with the same binder type configured for two separate Kafka clusters. +This sample primarily focuses on demonstrating the `spring.cloud.stream.sendto.destination` header in action. + + +## Running the application + +The following instructions assume that you are running Kafka as a Docker image. + +* Go to the application root +* `docker-compose up -d` + +This brings up two Kafka clusters in docker containers. +Local ports mapped for kafka are 9092 and 9093 (Zookeeper local parts mapped are 2181 and 2182). + +* `./mvnw clean package` + +The sample comes with a convenient test producer and consumer to see the processor in action. +After running the program, watch your console, every second some data is sent to Kafka cluster 1 and it is received through Kafka cluster 2. + +To run the example, command line parameters for the Zookeeper ensembles and Kafka clusters must be provided, as in the following example: +``` +java -jar target/ --kafkaBroker1=localhost:9092 --zk1=localhost:2181 --kafkaBroker2=localhost:9093 --zk2=localhost:2182 +``` + +You should see the output from the test producer/consumer above. diff --git a/multi-binder-samples/multi-binder-sendto-dest-header/docker-compose.yml b/multi-binder-samples/multi-binder-sendto-dest-header/docker-compose.yml new file mode 100644 index 0000000..a3dfa74 --- /dev/null +++ b/multi-binder-samples/multi-binder-sendto-dest-header/docker-compose.yml @@ -0,0 +1,36 @@ +version: '3' +services: + kafka1: + image: wurstmeister/kafka + container_name: kafka-multi-binder-1 + ports: + - "9092:9092" + environment: + - KAFKA_ADVERTISED_HOST_NAME=127.0.0.1 + - KAFKA_ADVERTISED_PORT=9092 + - KAFKA_ZOOKEEPER_CONNECT=zookeeper1:2181 + depends_on: + - zookeeper1 + zookeeper1: + image: wurstmeister/zookeeper + ports: + - "2181:2181" + environment: + - KAFKA_ADVERTISED_HOST_NAME=zookeeper1 + kafka2: + image: wurstmeister/kafka + container_name: kafka-multi-binder-2 + ports: + - "9093:9092" + environment: + - KAFKA_ADVERTISED_HOST_NAME=127.0.0.1 + - KAFKA_ADVERTISED_PORT=9092 + - KAFKA_ZOOKEEPER_CONNECT=zookeeper2:2181 + depends_on: + - zookeeper2 + zookeeper2: + image: wurstmeister/zookeeper + ports: + - "2182:2181" + environment: + - KAFKA_ADVERTISED_HOST_NAME=zookeeper2 \ No newline at end of file diff --git a/multi-binder-samples/multi-binder-sendto-dest-header/mvnw b/multi-binder-samples/multi-binder-sendto-dest-header/mvnw new file mode 100755 index 0000000..0ce08e9 --- /dev/null +++ b/multi-binder-samples/multi-binder-sendto-dest-header/mvnw @@ -0,0 +1,226 @@ +#!/bin/sh +# ---------------------------------------------------------------------------- +# Licensed to the Apache Software Foundation (ASF) under one +# or more contributor license agreements. See the NOTICE file +# distributed with this work for additional information +# regarding copyright ownership. The ASF licenses this file +# to you 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. +# ---------------------------------------------------------------------------- + +# ---------------------------------------------------------------------------- +# Maven2 Start Up Batch script +# +# Required ENV vars: +# ------------------ +# JAVA_HOME - location of a JDK home dir +# +# Optional ENV vars +# ----------------- +# M2_HOME - location of maven2's installed home dir +# MAVEN_OPTS - parameters passed to the Java VM when running Maven +# e.g. to debug Maven itself, use +# set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000 +# MAVEN_SKIP_RC - flag to disable loading of mavenrc files +# ---------------------------------------------------------------------------- + +if [ -z "$MAVEN_SKIP_RC" ] ; then + + if [ -f /etc/mavenrc ] ; then + . /etc/mavenrc + fi + + if [ -f "$HOME/.mavenrc" ] ; then + . "$HOME/.mavenrc" + fi + +fi + +# OS specific support. $var _must_ be set to either true or false. +cygwin=false; +darwin=false; +mingw=false +case "`uname`" in + CYGWIN*) cygwin=true ;; + MINGW*) mingw=true;; + Darwin*) darwin=true + # Use /usr/libexec/java_home if available, otherwise fall back to /Library/Java/Home + # See https://developer.apple.com/library/mac/qa/qa1170/_index.html + if [ -z "$JAVA_HOME" ]; then + if [ -x "/usr/libexec/java_home" ]; then + export JAVA_HOME="`/usr/libexec/java_home`" + else + export JAVA_HOME="/Library/Java/Home" + fi + fi + ;; +esac + +if [ -z "$JAVA_HOME" ] ; then + if [ -r /etc/gentoo-release ] ; then + JAVA_HOME=`java-config --jre-home` + fi +fi + +if [ -z "$M2_HOME" ] ; then + ## resolve links - $0 may be a link to maven's home + PRG="$0" + + # need this for relative symlinks + while [ -h "$PRG" ] ; do + ls=`ls -ld "$PRG"` + link=`expr "$ls" : '.*-> \(.*\)$'` + if expr "$link" : '/.*' > /dev/null; then + PRG="$link" + else + PRG="`dirname "$PRG"`/$link" + fi + done + + saveddir=`pwd` + + M2_HOME=`dirname "$PRG"`/.. + + # make it fully qualified + M2_HOME=`cd "$M2_HOME" && pwd` + + cd "$saveddir" + # echo Using m2 at $M2_HOME +fi + +# For Cygwin, ensure paths are in UNIX format before anything is touched +if $cygwin ; then + [ -n "$M2_HOME" ] && + M2_HOME=`cygpath --unix "$M2_HOME"` + [ -n "$JAVA_HOME" ] && + JAVA_HOME=`cygpath --unix "$JAVA_HOME"` + [ -n "$CLASSPATH" ] && + CLASSPATH=`cygpath --path --unix "$CLASSPATH"` +fi + +# For Migwn, ensure paths are in UNIX format before anything is touched +if $mingw ; then + [ -n "$M2_HOME" ] && + M2_HOME="`(cd "$M2_HOME"; pwd)`" + [ -n "$JAVA_HOME" ] && + JAVA_HOME="`(cd "$JAVA_HOME"; pwd)`" + # TODO classpath? +fi + +if [ -z "$JAVA_HOME" ]; then + javaExecutable="`which javac`" + if [ -n "$javaExecutable" ] && ! [ "`expr \"$javaExecutable\" : '\([^ ]*\)'`" = "no" ]; then + # readlink(1) is not available as standard on Solaris 10. + readLink=`which readlink` + if [ ! `expr "$readLink" : '\([^ ]*\)'` = "no" ]; then + if $darwin ; then + javaHome="`dirname \"$javaExecutable\"`" + javaExecutable="`cd \"$javaHome\" && pwd -P`/javac" + else + javaExecutable="`readlink -f \"$javaExecutable\"`" + fi + javaHome="`dirname \"$javaExecutable\"`" + javaHome=`expr "$javaHome" : '\(.*\)/bin'` + JAVA_HOME="$javaHome" + export JAVA_HOME + fi + fi +fi + +if [ -z "$JAVACMD" ] ; then + if [ -n "$JAVA_HOME" ] ; then + if [ -x "$JAVA_HOME/jre/sh/java" ] ; then + # IBM's JDK on AIX uses strange locations for the executables + JAVACMD="$JAVA_HOME/jre/sh/java" + else + JAVACMD="$JAVA_HOME/bin/java" + fi + else + JAVACMD="`which java`" + fi +fi + +if [ ! -x "$JAVACMD" ] ; then + echo "Error: JAVA_HOME is not defined correctly." >&2 + echo " We cannot execute $JAVACMD" >&2 + exit 1 +fi + +if [ -z "$JAVA_HOME" ] ; then + echo "Warning: JAVA_HOME environment variable is not set." +fi + +CLASSWORLDS_LAUNCHER=org.codehaus.plexus.classworlds.launcher.Launcher + +# traverses directory structure from process work directory to filesystem root +# first directory with .mvn subdirectory is considered project base directory +find_maven_basedir() { + + if [ -z "$1" ] + then + echo "Path not specified to find_maven_basedir" + return 1 + fi + + basedir="$1" + wdir="$1" + while [ "$wdir" != '/' ] ; do + if [ -d "$wdir"/.mvn ] ; then + basedir=$wdir + break + fi + # workaround for JBEAP-8937 (on Solaris 10/Sparc) + if [ -d "${wdir}" ]; then + wdir=`cd "$wdir/.."; pwd` + fi + # end of workaround + done + echo "${basedir}" +} + +# concatenates all lines of a file +concat_lines() { + if [ -f "$1" ]; then + echo "$(tr -s '\n' ' ' < "$1")" + fi +} + +BASE_DIR=`find_maven_basedir "$(pwd)"` +if [ -z "$BASE_DIR" ]; then + exit 1; +fi + +export MAVEN_PROJECTBASEDIR=${MAVEN_BASEDIR:-"$BASE_DIR"} +echo $MAVEN_PROJECTBASEDIR +MAVEN_OPTS="$(concat_lines "$MAVEN_PROJECTBASEDIR/.mvn/jvm.config") $MAVEN_OPTS" + +# For Cygwin, switch paths to Windows format before running java +if $cygwin; then + [ -n "$M2_HOME" ] && + M2_HOME=`cygpath --path --windows "$M2_HOME"` + [ -n "$JAVA_HOME" ] && + JAVA_HOME=`cygpath --path --windows "$JAVA_HOME"` + [ -n "$CLASSPATH" ] && + CLASSPATH=`cygpath --path --windows "$CLASSPATH"` + [ -n "$MAVEN_PROJECTBASEDIR" ] && + MAVEN_PROJECTBASEDIR=`cygpath --path --windows "$MAVEN_PROJECTBASEDIR"` +fi + +WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain + +"$JAVACMD" \ + $MAVEN_OPTS \ + -classpath "$MAVEN_PROJECTBASEDIR/.mvn/wrapper/maven-wrapper.jar" \ + "-Dmaven.home=${M2_HOME}" "-Dmaven.multiModuleProjectDirectory=${MAVEN_PROJECTBASEDIR}" \ + ${WRAPPER_LAUNCHER} $MAVEN_CONFIG "$@" + diff --git a/multi-binder-samples/multi-binder-sendto-dest-header/mvnw.cmd b/multi-binder-samples/multi-binder-sendto-dest-header/mvnw.cmd new file mode 100644 index 0000000..7ecd01d --- /dev/null +++ b/multi-binder-samples/multi-binder-sendto-dest-header/mvnw.cmd @@ -0,0 +1,145 @@ +@REM ---------------------------------------------------------------------------- +@REM Licensed to the Apache Software Foundation (ASF) under one +@REM or more contributor license agreements. See the NOTICE file +@REM distributed with this work for additional information +@REM regarding copyright ownership. The ASF licenses this file +@REM to you under the Apache License, Version 2.0 (the +@REM "License"); you may not use this file except in compliance +@REM with the License. You may obtain a copy of the License at +@REM +@REM https://www.apache.org/licenses/LICENSE-2.0 +@REM +@REM Unless required by applicable law or agreed to in writing, +@REM software distributed under the License is distributed on an +@REM "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +@REM KIND, either express or implied. See the License for the +@REM specific language governing permissions and limitations +@REM under the License. +@REM ---------------------------------------------------------------------------- + +@REM ---------------------------------------------------------------------------- +@REM Maven2 Start Up Batch script +@REM +@REM Required ENV vars: +@REM JAVA_HOME - location of a JDK home dir +@REM +@REM Optional ENV vars +@REM M2_HOME - location of maven2's installed home dir +@REM MAVEN_BATCH_ECHO - set to 'on' to enable the echoing of the batch commands +@REM MAVEN_BATCH_PAUSE - set to 'on' to wait for a key stroke before ending +@REM MAVEN_OPTS - parameters passed to the Java VM when running Maven +@REM e.g. to debug Maven itself, use +@REM set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000 +@REM MAVEN_SKIP_RC - flag to disable loading of mavenrc files +@REM ---------------------------------------------------------------------------- + +@REM Begin all REM lines with '@' in case MAVEN_BATCH_ECHO is 'on' +@echo off +@REM enable echoing my setting MAVEN_BATCH_ECHO to 'on' +@if "%MAVEN_BATCH_ECHO%" == "on" echo %MAVEN_BATCH_ECHO% + +@REM set %HOME% to equivalent of $HOME +if "%HOME%" == "" (set "HOME=%HOMEDRIVE%%HOMEPATH%") + +@REM Execute a user defined script before this one +if not "%MAVEN_SKIP_RC%" == "" goto skipRcPre +@REM check for pre script, once with legacy .bat ending and once with .cmd ending +if exist "%HOME%\mavenrc_pre.bat" call "%HOME%\mavenrc_pre.bat" +if exist "%HOME%\mavenrc_pre.cmd" call "%HOME%\mavenrc_pre.cmd" +:skipRcPre + +@setlocal + +set ERROR_CODE=0 + +@REM To isolate internal variables from possible post scripts, we use another setlocal +@setlocal + +@REM ==== START VALIDATION ==== +if not "%JAVA_HOME%" == "" goto OkJHome + +echo. +echo Error: JAVA_HOME not found in your environment. >&2 +echo Please set the JAVA_HOME variable in your environment to match the >&2 +echo location of your Java installation. >&2 +echo. +goto error + +:OkJHome +if exist "%JAVA_HOME%\bin\java.exe" goto init + +echo. +echo Error: JAVA_HOME is set to an invalid directory. >&2 +echo JAVA_HOME = "%JAVA_HOME%" >&2 +echo Please set the JAVA_HOME variable in your environment to match the >&2 +echo location of your Java installation. >&2 +echo. +goto error + +@REM ==== END VALIDATION ==== + +:init + +set MAVEN_CMD_LINE_ARGS=%* + +@REM Find the project base dir, i.e. the directory that contains the folder ".mvn". +@REM Fallback to current working directory if not found. + +set MAVEN_PROJECTBASEDIR=%MAVEN_BASEDIR% +IF NOT "%MAVEN_PROJECTBASEDIR%"=="" goto endDetectBaseDir + +set EXEC_DIR=%CD% +set WDIR=%EXEC_DIR% +:findBaseDir +IF EXIST "%WDIR%"\.mvn goto baseDirFound +cd .. +IF "%WDIR%"=="%CD%" goto baseDirNotFound +set WDIR=%CD% +goto findBaseDir + +:baseDirFound +set MAVEN_PROJECTBASEDIR=%WDIR% +cd "%EXEC_DIR%" +goto endDetectBaseDir + +:baseDirNotFound +set MAVEN_PROJECTBASEDIR=%EXEC_DIR% +cd "%EXEC_DIR%" + +:endDetectBaseDir + +IF NOT EXIST "%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config" goto endReadAdditionalConfig + +@setlocal EnableExtensions EnableDelayedExpansion +for /F "usebackq delims=" %%a in ("%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config") do set JVM_CONFIG_MAVEN_PROPS=!JVM_CONFIG_MAVEN_PROPS! %%a +@endlocal & set JVM_CONFIG_MAVEN_PROPS=%JVM_CONFIG_MAVEN_PROPS% + +:endReadAdditionalConfig + +SET MAVEN_JAVA_EXE="%JAVA_HOME%\bin\java.exe" + +set WRAPPER_JAR="".\.mvn\wrapper\maven-wrapper.jar"" +set WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain + +%MAVEN_JAVA_EXE% %JVM_CONFIG_MAVEN_PROPS% %MAVEN_OPTS% %MAVEN_DEBUG_OPTS% -classpath %WRAPPER_JAR% "-Dmaven.multiModuleProjectDirectory=%MAVEN_PROJECTBASEDIR%" %WRAPPER_LAUNCHER% %MAVEN_CMD_LINE_ARGS% +if ERRORLEVEL 1 goto error +goto end + +:error +set ERROR_CODE=1 + +:end +@endlocal & set ERROR_CODE=%ERROR_CODE% + +if not "%MAVEN_SKIP_RC%" == "" goto skipRcPost +@REM check for post script, once with legacy .bat ending and once with .cmd ending +if exist "%HOME%\mavenrc_post.bat" call "%HOME%\mavenrc_post.bat" +if exist "%HOME%\mavenrc_post.cmd" call "%HOME%\mavenrc_post.cmd" +:skipRcPost + +@REM pause the script if MAVEN_BATCH_PAUSE is set to 'on' +if "%MAVEN_BATCH_PAUSE%" == "on" pause + +if "%MAVEN_TERMINATE_CMD%" == "on" exit %ERROR_CODE% + +exit /B %ERROR_CODE% diff --git a/multi-binder-samples/multi-binder-sendto-dest-header/pom.xml b/multi-binder-samples/multi-binder-sendto-dest-header/pom.xml new file mode 100644 index 0000000..8cd63ad --- /dev/null +++ b/multi-binder-samples/multi-binder-sendto-dest-header/pom.xml @@ -0,0 +1,128 @@ + + + 4.0.0 + + multi-binder-sendto-dest-header + 0.0.1-SNAPSHOT + jar + multi-binder-sendto-dest-header + Spring Cloud Stream Multibinder Two Kafka Clusters Sample with sendto header + + + org.springframework.boot + spring-boot-starter-parent + 2.4.4 + + + + + 2020.0.2 + + + + + + org.springframework.cloud + spring-cloud-dependencies + ${spring-cloud.version} + pom + import + + + + + + + org.springframework.cloud + spring-cloud-stream-binder-kafka + + + org.springframework.boot + spring-boot-starter-test + test + + + org.springframework.kafka + spring-kafka-test + test + + + org.springframework.boot + spring-boot-starter-actuator + + + org.springframework.boot + spring-boot-starter + + + org.springframework.boot + spring-boot-starter-web + + + org.junit.vintage + junit-vintage-engine + test + + + + + + + org.springframework.boot + spring-boot-maven-plugin + + + + + + + spring-snapshots + Spring Snapshots + https://repo.spring.io/libs-snapshot-local + + true + + + false + + + + spring-milestones + Spring Milestones + https://repo.spring.io/libs-milestone-local + + false + + + + + + spring-snapshots + Spring Snapshots + https://repo.spring.io/libs-snapshot-local + + true + + + false + + + + spring-milestones + Spring Milestones + https://repo.spring.io/libs-milestone-local + + false + + + + spring-releases + Spring Releases + https://repo.spring.io/libs-release-local + + false + + + + + diff --git a/multi-binder-samples/multi-binder-sendto-dest-header/src/main/java/multibinder/MultibinderApplication.java b/multi-binder-samples/multi-binder-sendto-dest-header/src/main/java/multibinder/MultibinderApplication.java new file mode 100644 index 0000000..8af18ae --- /dev/null +++ b/multi-binder-samples/multi-binder-sendto-dest-header/src/main/java/multibinder/MultibinderApplication.java @@ -0,0 +1,66 @@ +/* + * Copyright 2022-2022 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 multibinder; + +import java.util.concurrent.atomic.AtomicBoolean; +import java.util.function.Consumer; +import java.util.function.Function; +import java.util.function.Supplier; + +import org.apache.commons.logging.Log; +import org.apache.commons.logging.LogFactory; +import org.springframework.boot.SpringApplication; +import org.springframework.boot.autoconfigure.SpringBootApplication; +import org.springframework.context.annotation.Bean; +import org.springframework.messaging.Message; +import org.springframework.messaging.support.MessageBuilder; + +@SpringBootApplication +public class MultibinderApplication { + + public static void main(String[] args) { + SpringApplication.run(MultibinderApplication.class, args); + } + + @Bean + public Function> process() { + return payload -> MessageBuilder.withPayload(payload.toUpperCase()) + .setHeader("spring.cloud.stream.sendto.destination", "dataOut") + .build(); + } + + static class TestProducer { + + private AtomicBoolean semaphore = new AtomicBoolean(true); + + @Bean + public Supplier sendTestData() { + return () -> this.semaphore.getAndSet(!this.semaphore.get()) ? "foo" : "bar"; + } + } + + static class TestConsumer { + + private final Log logger = LogFactory.getLog(getClass()); + + @Bean + public Consumer receive() { + return s -> logger.info("Data received..." + s); + } + } + +} diff --git a/multi-binder-samples/multi-binder-sendto-dest-header/src/main/resources/application.yml b/multi-binder-samples/multi-binder-sendto-dest-header/src/main/resources/application.yml new file mode 100644 index 0000000..8764c14 --- /dev/null +++ b/multi-binder-samples/multi-binder-sendto-dest-header/src/main/resources/application.yml @@ -0,0 +1,39 @@ +spring: + cloud: + stream: + default-binder: kafka2 + bindings: + process-in-0: + destination: dataIn + binder: kafka1 + #Test sink binding (used for testing) + sendTestData-out-0: + destination: dataIn + binder: kafka1 + #Test sink binding (used for testing) + receive-in-0: + destination: dataOut + binder: kafka2 + function: + definition: sendTestData;process;receive + binders: + kafka1: + type: kafka + environment: + spring: + cloud: + stream: + kafka: + binder: + brokers: ${kafkaBroker1} + zkNodes: ${zk1} + kafka2: + type: kafka + environment: + spring: + cloud: + stream: + kafka: + binder: + brokers: ${kafkaBroker2} + zkNodes: ${zk2} \ No newline at end of file diff --git a/multi-binder-samples/multi-binder-sendto-dest-header/src/test/java/multibinder/TwoKafkaBindersApplicationTest.java b/multi-binder-samples/multi-binder-sendto-dest-header/src/test/java/multibinder/TwoKafkaBindersApplicationTest.java new file mode 100644 index 0000000..e1fd1fc --- /dev/null +++ b/multi-binder-samples/multi-binder-sendto-dest-header/src/test/java/multibinder/TwoKafkaBindersApplicationTest.java @@ -0,0 +1,101 @@ +/* + * Copyright 2015-2016 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 multibinder; + +import org.hamcrest.CoreMatchers; +import org.hamcrest.Matchers; +import org.junit.Assert; +import org.junit.BeforeClass; +import org.junit.ClassRule; +import org.junit.Test; +import org.junit.runner.RunWith; + +import org.springframework.beans.DirectFieldAccessor; +import org.springframework.beans.factory.annotation.Autowired; +import org.springframework.boot.test.context.SpringBootTest; +import org.springframework.cloud.stream.binder.Binder; +import org.springframework.cloud.stream.binder.BinderFactory; +import org.springframework.cloud.stream.binder.ExtendedConsumerProperties; +import org.springframework.cloud.stream.binder.kafka.KafkaMessageChannelBinder; +import org.springframework.cloud.stream.binder.kafka.properties.KafkaBinderConfigurationProperties; +import org.springframework.cloud.stream.binder.kafka.properties.KafkaConsumerProperties; +import org.springframework.integration.channel.QueueChannel; +import org.springframework.kafka.test.rule.EmbeddedKafkaRule; +import org.springframework.messaging.Message; +import org.springframework.messaging.MessageChannel; +import org.springframework.test.annotation.DirtiesContext; +import org.springframework.test.context.junit4.SpringRunner; + +import java.util.UUID; + +import static org.hamcrest.Matchers.arrayWithSize; +import static org.hamcrest.Matchers.equalTo; + +@RunWith(SpringRunner.class) +@SpringBootTest( + webEnvironment = SpringBootTest.WebEnvironment.NONE) +@DirtiesContext +public class TwoKafkaBindersApplicationTest { + + @ClassRule + public static EmbeddedKafkaRule kafkaTestSupport1 = new EmbeddedKafkaRule(1, true, "input", "output"); + + @ClassRule + public static EmbeddedKafkaRule kafkaTestSupport2 = new EmbeddedKafkaRule(1, true, "input", "output"); + + + @BeforeClass + public static void setupEnvironment() { + System.setProperty("kafkaBroker1", kafkaTestSupport1.getEmbeddedKafka().getBrokersAsString()); + System.setProperty("kafkaBroker2", kafkaTestSupport2.getEmbeddedKafka().getBrokersAsString()); + } + + @Autowired + private BinderFactory binderFactory; + + @Test + public void contextLoads() { + Binder binder1 = binderFactory.getBinder("kafka1", MessageChannel.class); + KafkaMessageChannelBinder kafka1 = (KafkaMessageChannelBinder) binder1; + DirectFieldAccessor directFieldAccessor1 = new DirectFieldAccessor(kafka1); + KafkaBinderConfigurationProperties configuration1 = + (KafkaBinderConfigurationProperties) directFieldAccessor1.getPropertyValue("configurationProperties"); + Assert.assertThat(configuration1.getBrokers(), arrayWithSize(1)); + Assert.assertThat(configuration1.getBrokers()[0], equalTo(kafkaTestSupport1.getEmbeddedKafka().getBrokersAsString())); + + Binder binder2 = binderFactory.getBinder("kafka2", MessageChannel.class); + KafkaMessageChannelBinder kafka2 = (KafkaMessageChannelBinder) binder2; + DirectFieldAccessor directFieldAccessor2 = new DirectFieldAccessor(kafka2); + KafkaBinderConfigurationProperties configuration2 = + (KafkaBinderConfigurationProperties) directFieldAccessor2.getPropertyValue("configurationProperties"); + Assert.assertThat(configuration2.getBrokers(), arrayWithSize(1)); + Assert.assertThat(configuration2.getBrokers()[0], equalTo(kafkaTestSupport2.getEmbeddedKafka().getBrokersAsString())); + } + + @Test + public void messagingWorks() { + QueueChannel dataConsumer = new QueueChannel(); + ((KafkaMessageChannelBinder) binderFactory.getBinder("kafka2", MessageChannel.class)).bindConsumer("dataOut", UUID.randomUUID().toString(), + dataConsumer, new ExtendedConsumerProperties<>(new KafkaConsumerProperties())); + + //receiving test message sent by the test producer in the application + Message receive = dataConsumer.receive(60_000); + Assert.assertThat(receive, Matchers.notNullValue()); + Assert.assertThat(receive.getPayload(), CoreMatchers.anyOf(equalTo("FOO".getBytes()), equalTo("BAR".getBytes()))); + } + +} diff --git a/multi-binder-samples/multi-binder-two-kafka-clusters/src/main/java/multibinder/MultibinderApplication.java b/multi-binder-samples/multi-binder-two-kafka-clusters/src/main/java/multibinder/MultibinderApplication.java index b377c08..642db9b 100644 --- a/multi-binder-samples/multi-binder-two-kafka-clusters/src/main/java/multibinder/MultibinderApplication.java +++ b/multi-binder-samples/multi-binder-two-kafka-clusters/src/main/java/multibinder/MultibinderApplication.java @@ -26,6 +26,8 @@ import org.apache.commons.logging.LogFactory; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.context.annotation.Bean; +import org.springframework.messaging.Message; +import org.springframework.messaging.support.MessageBuilder; @SpringBootApplication public class MultibinderApplication { @@ -34,9 +36,16 @@ public class MultibinderApplication { SpringApplication.run(MultibinderApplication.class, args); } +// @Bean +// public Function process() { +// return payload -> payload.toUpperCase(); +// } + @Bean - public Function process() { - return payload -> payload.toUpperCase(); + public Function> process() { + return payload -> MessageBuilder.withPayload(payload.toUpperCase()) + .setHeader("spring.cloud.stream.sendto.destination", "dataOut") + .build(); } static class TestProducer { diff --git a/multi-binder-samples/multi-binder-two-kafka-clusters/src/main/resources/application.yml b/multi-binder-samples/multi-binder-two-kafka-clusters/src/main/resources/application.yml index ebf7ab7..4392fbd 100644 --- a/multi-binder-samples/multi-binder-two-kafka-clusters/src/main/resources/application.yml +++ b/multi-binder-samples/multi-binder-two-kafka-clusters/src/main/resources/application.yml @@ -1,13 +1,14 @@ spring: cloud: stream: + default-binder: kafka2 bindings: process-in-0: destination: dataIn binder: kafka1 - process-out-0: - destination: dataOut - binder: kafka2 +# process-out-0: +# destination: dataOut +# binder: kafka2 #Test sink binding (used for testing) sendTestData-out-0: destination: dataIn diff --git a/multi-binder-samples/pom.xml b/multi-binder-samples/pom.xml index f6682cf..6f7d2bf 100644 --- a/multi-binder-samples/pom.xml +++ b/multi-binder-samples/pom.xml @@ -11,6 +11,7 @@ multi-binder-kafka-rabbit multi-binder-two-kafka-clusters + multi-binder-sendto-dest-header kafka-multi-binder-jaas multi-binder-kafka-streams multi-binder-dynamic-destinations