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spring-reactive-architecture (#182)

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Co-authored-by: Arpendu Kumar Garai <Arpendu.KumarGarai@microfocus.com>
This commit is contained in:
Arpendu Kumar Garai
2022-05-05 01:53:29 +05:30
committed by GitHub
parent 862b40b1fb
commit 0372c85220
89 changed files with 6020 additions and 0 deletions
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33
spring-reactive-architecture/.gitignore vendored Normal file
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HELP.md
target/
!.mvn/wrapper/maven-wrapper.jar
!**/src/main/**/target/
!**/src/test/**/target/
### STS ###
.apt_generated
.classpath
.factorypath
.project
.settings
.springBeans
.sts4-cache
### IntelliJ IDEA ###
.idea
*.iws
*.iml
*.ipr
### NetBeans ###
/nbproject/private/
/nbbuild/
/dist/
/nbdist/
/.nb-gradle/
build/
!**/src/main/**/build/
!**/src/test/**/build/
### VS Code ###
.vscode/

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spring-reactive-architecture/.mvn/wrapper/maven-wrapper.properties vendored Normal file
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distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.8.4/apache-maven-3.8.4-bin.zip
wrapperUrl=https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar

4
spring-reactive-architecture/README.md Normal file
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# Related Blog Posts
* [A Reactive Architecture using Spring Boot](https://reflectoring.io/reactive-architecture-using-spring-boot/)

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spring-reactive-architecture/account-management-service/.gitignore vendored Normal file
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HELP.md
target/
!.mvn/wrapper/maven-wrapper.jar
!**/src/main/**/target/
!**/src/test/**/target/
### STS ###
.apt_generated
.classpath
.factorypath
.project
.settings
.springBeans
.sts4-cache
### IntelliJ IDEA ###
.idea
*.iws
*.iml
*.ipr
### NetBeans ###
/nbproject/private/
/nbbuild/
/dist/
/nbdist/
/.nb-gradle/
build/
!**/src/main/**/build/
!**/src/test/**/build/
### VS Code ###
.vscode/

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distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.8.4/apache-maven-3.8.4-bin.zip
wrapperUrl=https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar

3
spring-reactive-architecture/account-management-service/Dockerfile Normal file
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FROM openjdk:8-jdk-alpine
COPY target/account-management-service-0.0.1-SNAPSHOT.jar app.jar
ENTRYPOINT ["java","-jar","/app.jar"]

316
spring-reactive-architecture/account-management-service/mvnw vendored Normal file
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#!/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.
# ----------------------------------------------------------------------------
# ----------------------------------------------------------------------------
# Maven 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 "$MAVEN_SKIP_RC" ] ; then
if [ -f /usr/local/etc/mavenrc ] ; then
. /usr/local/etc/mavenrc
fi
if [ -f /etc/mavenrc ] ; then
. /etc/mavenrc
fi
if [ -f "$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 Mingw, 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 "$JAVA_HOME"; pwd)`"
fi
if [ -z "$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="`\\unset -f command; \\command -v 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 "$BASE_DIR" ]; then
exit 1;
fi
##########################################################################################
# Extension to allow automatically downloading the maven-wrapper.jar from Maven-central
# This allows using the maven wrapper in projects that prohibit checking in binary data.
##########################################################################################
if [ -r "$BASE_DIR/.mvn/wrapper/maven-wrapper.jar" ]; then
if [ "$MVNW_VERBOSE" = true ]; then
echo "Found .mvn/wrapper/maven-wrapper.jar"
fi
else
if [ "$MVNW_VERBOSE" = true ]; then
echo "Couldn't find .mvn/wrapper/maven-wrapper.jar, downloading it ..."
fi
if [ -n "$MVNW_REPOURL" ]; then
jarUrl="$MVNW_REPOURL/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar"
else
jarUrl="https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar"
fi
while IFS="=" read key value; do
case "$key" in (wrapperUrl) jarUrl="$value"; break ;;
esac
done < "$BASE_DIR/.mvn/wrapper/maven-wrapper.properties"
if [ "$MVNW_VERBOSE" = true ]; then
echo "Downloading from: $jarUrl"
fi
wrapperJarPath="$BASE_DIR/.mvn/wrapper/maven-wrapper.jar"
if $cygwin; then
wrapperJarPath=`cygpath --path --windows "$wrapperJarPath"`
fi
if command -v wget > /dev/null; then
if [ "$MVNW_VERBOSE" = true ]; then
echo "Found wget ... using wget"
fi
if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then
wget "$jarUrl" -O "$wrapperJarPath" || rm -f "$wrapperJarPath"
else
wget --http-user=$MVNW_USERNAME --http-password=$MVNW_PASSWORD "$jarUrl" -O "$wrapperJarPath" || rm -f "$wrapperJarPath"
fi
elif command -v curl > /dev/null; then
if [ "$MVNW_VERBOSE" = true ]; then
echo "Found curl ... using curl"
fi
if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then
curl -o "$wrapperJarPath" "$jarUrl" -f
else
curl --user $MVNW_USERNAME:$MVNW_PASSWORD -o "$wrapperJarPath" "$jarUrl" -f
fi
else
if [ "$MVNW_VERBOSE" = true ]; then
echo "Falling back to using Java to download"
fi
javaClass="$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.java"
# For Cygwin, switch paths to Windows format before running javac
if $cygwin; then
javaClass=`cygpath --path --windows "$javaClass"`
fi
if [ -e "$javaClass" ]; then
if [ ! -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then
if [ "$MVNW_VERBOSE" = true ]; then
echo " - Compiling MavenWrapperDownloader.java ..."
fi
# Compiling the Java class
("$JAVA_HOME/bin/javac" "$javaClass")
fi
if [ -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then
# Running the downloader
if [ "$MVNW_VERBOSE" = true ]; then
echo " - Running MavenWrapperDownloader.java ..."
fi
("$JAVA_HOME/bin/java" -cp .mvn/wrapper MavenWrapperDownloader "$MAVEN_PROJECTBASEDIR")
fi
fi
fi
fi
##########################################################################################
# End of extension
##########################################################################################
export MAVEN_PROJECTBASEDIR=${MAVEN_BASEDIR:-"$BASE_DIR"}
if [ "$MVNW_VERBOSE" = true ]; then
echo $MAVEN_PROJECTBASEDIR
fi
MAVEN_OPTS="$(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 "$MAVEN_PROJECTBASEDIR"`
fi
# Provide a "standardized" way to retrieve the CLI args that will
# work with both Windows and non-Windows executions.
MAVEN_CMD_LINE_ARGS="$MAVEN_CONFIG $@"
export MAVEN_CMD_LINE_ARGS
WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain
exec "$JAVACMD" \
$MAVEN_OPTS \
$MAVEN_DEBUG_OPTS \
-classpath "$MAVEN_PROJECTBASEDIR/.mvn/wrapper/maven-wrapper.jar" \
"-Dmaven.home=${M2_HOME}" \
"-Dmaven.multiModuleProjectDirectory=${MAVEN_PROJECTBASEDIR}" \
${WRAPPER_LAUNCHER} $MAVEN_CONFIG "$@"

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@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 Maven 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 keystroke 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 set title of command window
title %0
@REM enable echoing by 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 "%USERPROFILE%\mavenrc_pre.bat" call "%USERPROFILE%\mavenrc_pre.bat" %*
if exist "%USERPROFILE%\mavenrc_pre.cmd" call "%USERPROFILE%\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
@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="%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.jar"
set WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain
set DOWNLOAD_URL="https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar"
FOR /F "usebackq tokens=1,2 delims==" %%A IN ("%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.properties") DO (
IF "%%A"=="wrapperUrl" SET DOWNLOAD_URL=%%B
)
@REM Extension to allow automatically downloading the maven-wrapper.jar from Maven-central
@REM This allows using the maven wrapper in projects that prohibit checking in binary data.
if exist %WRAPPER_JAR% (
if "%MVNW_VERBOSE%" == "true" (
echo Found %WRAPPER_JAR%
)
) else (
if not "%MVNW_REPOURL%" == "" (
SET DOWNLOAD_URL="%MVNW_REPOURL%/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar"
)
if "%MVNW_VERBOSE%" == "true" (
echo Couldn't find %WRAPPER_JAR%, downloading it ...
echo Downloading from: %DOWNLOAD_URL%
)
powershell -Command "&{"^
"$webclient = new-object System.Net.WebClient;"^
"if (-not ([string]::IsNullOrEmpty('%MVNW_USERNAME%') -and [string]::IsNullOrEmpty('%MVNW_PASSWORD%'))) {"^
"$webclient.Credentials = new-object System.Net.NetworkCredential('%MVNW_USERNAME%', '%MVNW_PASSWORD%');"^
"}"^
"[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12; $webclient.DownloadFile('%DOWNLOAD_URL%', '%WRAPPER_JAR%')"^
"}"
if "%MVNW_VERBOSE%" == "true" (
echo Finished downloading %WRAPPER_JAR%
)
)
@REM End of extension
@REM Provide a "standardized" way to retrieve the CLI args that will
@REM work with both Windows and non-Windows executions.
set MAVEN_CMD_LINE_ARGS=%*
%MAVEN_JAVA_EXE% ^
%JVM_CONFIG_MAVEN_PROPS% ^
%MAVEN_OPTS% ^
%MAVEN_DEBUG_OPTS% ^
-classpath %WRAPPER_JAR% ^
"-Dmaven.multiModuleProjectDirectory=%MAVEN_PROJECTBASEDIR%" ^
%WRAPPER_LAUNCHER% %MAVEN_CONFIG% %*
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 "%USERPROFILE%\mavenrc_post.bat" call "%USERPROFILE%\mavenrc_post.bat"
if exist "%USERPROFILE%\mavenrc_post.cmd" call "%USERPROFILE%\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%
cmd /C exit /B %ERROR_CODE%

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spring-reactive-architecture/account-management-service/pom.xml Normal file
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<?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">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.5.3</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>io.reflectoring</groupId>
<artifactId>account-management-service</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>account-management-service</name>
<description>Spring Boot microservice to manage User accounts per transaction</description>
<properties>
<java.version>1.8</java.version>
<spring-cloud.version>2020.0.3</spring-cloud.version>
</properties>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>${spring-cloud.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-webflux</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-stream-kafka</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-mongodb-reactive</artifactId>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>io.projectreactor</groupId>
<artifactId>reactor-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.kafka</groupId>
<artifactId>spring-kafka-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<excludes>
<exclude>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</exclude>
</excludes>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-resources-plugin</artifactId>
<version>3.1.0</version>
</plugin>
</plugins>
</build>
</project>

13
spring-reactive-architecture/account-management-service/src/main/java/io/reflectoring/account_management_service/AccountManagementServiceApplication.java Normal file
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package io.reflectoring.account_management_service;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class AccountManagementServiceApplication {
public static void main(String[] args) {
SpringApplication.run(AccountManagementServiceApplication.class, args);
}
}

15
spring-reactive-architecture/account-management-service/src/main/java/io/reflectoring/account_management_service/constant/TransactionStatus.java Normal file
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@@ -0,0 +1,15 @@
package io.reflectoring.account_management_service.constant;
public enum TransactionStatus {
INITIATED,
SUCCESS,
FAILURE,
CANCELLED,
VALID,
ACCOUNT_BLOCKED,
CARD_INVALID,
FUNDS_UNAVAILABLE,
FRAUDULENT,
FRAUDULENT_NOTIFY_SUCCESS,
FRAUDULENT_NOTIFY_FAILURE
}

26
spring-reactive-architecture/account-management-service/src/main/java/io/reflectoring/account_management_service/controller/AccountManagementController.java Normal file
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@@ -0,0 +1,26 @@
package io.reflectoring.account_management_service.controller;
import io.reflectoring.account_management_service.model.Transaction;
import io.reflectoring.account_management_service.service.AccountManagementService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import reactor.core.publisher.Mono;
@Slf4j
@RestController
@RequestMapping("/banking")
public class AccountManagementController {
@Autowired
private AccountManagementService accountManagementService;
@PostMapping("/process")
public Mono<Transaction> manage(@RequestBody Transaction transaction) {
log.info("Process transaction with details in account management service: {}", transaction);
return accountManagementService.manage(transaction);
}
}

19
spring-reactive-architecture/account-management-service/src/main/java/io/reflectoring/account_management_service/kafka/consumer/TransactionConsumer.java Normal file
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@@ -0,0 +1,19 @@
package io.reflectoring.account_management_service.kafka.consumer;
import io.reflectoring.account_management_service.model.Transaction;
import io.reflectoring.account_management_service.service.AccountManagementService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import java.util.function.Consumer;
@Slf4j
@Configuration
public class TransactionConsumer {
@Bean
public Consumer<Transaction> consumeTransaction(AccountManagementService accountManagementService) {
return accountManagementService::asyncProcess;
}
}

29
spring-reactive-architecture/account-management-service/src/main/java/io/reflectoring/account_management_service/kafka/producer/TransactionProducer.java Normal file
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@@ -0,0 +1,29 @@
package io.reflectoring.account_management_service.kafka.producer;
import io.reflectoring.account_management_service.model.Transaction;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cloud.stream.function.StreamBridge;
import org.springframework.kafka.support.KafkaHeaders;
import org.springframework.messaging.Message;
import org.springframework.messaging.support.MessageBuilder;
import org.springframework.stereotype.Service;
import java.nio.charset.StandardCharsets;
@Slf4j
@Service
public class TransactionProducer {
@Autowired
private StreamBridge streamBridge;
public void sendMessage(Transaction transaction) {
Message<Transaction> msg = MessageBuilder.withPayload(transaction)
.setHeader(KafkaHeaders.MESSAGE_KEY, transaction.getTransactionId().getBytes(StandardCharsets.UTF_8))
.build();
log.info("Transaction processed to dispatch: {}; Message dispatch successful: {}",
msg,
streamBridge.send("transaction-out-0", msg));
}
}

37
spring-reactive-architecture/account-management-service/src/main/java/io/reflectoring/account_management_service/model/Transaction.java Normal file
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@@ -0,0 +1,37 @@
package io.reflectoring.account_management_service.model;
import com.fasterxml.jackson.annotation.JsonProperty;
import io.reflectoring.account_management_service.constant.TransactionStatus;
import lombok.Data;
import lombok.NoArgsConstructor;
import lombok.ToString;
import org.springframework.data.annotation.Id;
import org.springframework.data.mongodb.core.mapping.Document;
@Data
@Document
@ToString
@NoArgsConstructor
public class Transaction {
@Id
@JsonProperty("transaction_id")
private String transactionId;
private String date;
@JsonProperty("amount_deducted")
private double amountDeducted;
@JsonProperty("store_name")
private String storeName;
@JsonProperty("store_id")
private String storeId;
@JsonProperty("card_id")
private String cardId;
@JsonProperty("transaction_location")
private String transactionLocation;
private TransactionStatus status;
}

58
spring-reactive-architecture/account-management-service/src/main/java/io/reflectoring/account_management_service/model/User.java Normal file
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@@ -0,0 +1,58 @@
package io.reflectoring.account_management_service.model;
import com.fasterxml.jackson.annotation.JsonProperty;
import lombok.Data;
import lombok.NoArgsConstructor;
import lombok.ToString;
import org.springframework.data.annotation.Id;
import org.springframework.data.annotation.Transient;
import org.springframework.data.mongodb.core.mapping.Document;
import java.util.ArrayList;
import java.util.List;
@Data
@Document
@ToString
@NoArgsConstructor
public class User {
@Id
private String id;
@JsonProperty("first_name")
private String firstName;
@JsonProperty("last_name")
private String lastName;
private String email;
private String address;
@JsonProperty("home_country")
private String homeCountry;
private String gender;
private String mobile;
@JsonProperty("card_id")
private String cardId;
@JsonProperty("account_number")
private String accountNumber;
@JsonProperty("account_type")
private String accountType;
@JsonProperty("account_locked")
private boolean accountLocked;
@JsonProperty("fraudulent_activity_attempt_count")
private Long fraudulentActivityAttemptCount;
@Transient
@JsonProperty("valid_transactions")
private List<Transaction> validTransactions;
@Transient
@JsonProperty("fraudulent_transactions")
private List<Transaction> fraudulentTransactions;
}

7
spring-reactive-architecture/account-management-service/src/main/java/io/reflectoring/account_management_service/repository/TransactionRepository.java Normal file
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@@ -0,0 +1,7 @@
package io.reflectoring.account_management_service.repository;
import io.reflectoring.account_management_service.model.Transaction;
import org.springframework.data.mongodb.repository.ReactiveMongoRepository;
public interface TransactionRepository extends ReactiveMongoRepository<Transaction, String> {
}

10
spring-reactive-architecture/account-management-service/src/main/java/io/reflectoring/account_management_service/repository/UserRepository.java Normal file
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@@ -0,0 +1,10 @@
package io.reflectoring.account_management_service.repository;
import io.reflectoring.account_management_service.model.User;
import org.springframework.data.mongodb.repository.ReactiveMongoRepository;
import reactor.core.publisher.Mono;
public interface UserRepository extends ReactiveMongoRepository<User, String> {
Mono<User> findByCardId(String cardId);
}

84
spring-reactive-architecture/account-management-service/src/main/java/io/reflectoring/account_management_service/service/AccountManagementService.java Normal file
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@@ -0,0 +1,84 @@
package io.reflectoring.account_management_service.service;
import io.reflectoring.account_management_service.constant.TransactionStatus;
import io.reflectoring.account_management_service.kafka.producer.TransactionProducer;
import io.reflectoring.account_management_service.model.Transaction;
import io.reflectoring.account_management_service.repository.TransactionRepository;
import io.reflectoring.account_management_service.repository.UserRepository;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import reactor.core.publisher.Mono;
import java.util.ArrayList;
import java.util.List;
import java.util.Objects;
@Slf4j
@Service
public class AccountManagementService {
@Autowired
private TransactionRepository transactionRepo;
@Autowired
private UserRepository userRepo;
@Autowired
private TransactionProducer producer;
public Mono<Transaction> manage(Transaction transaction) {
return userRepo.findByCardId(transaction.getCardId())
.map(u -> {
if (transaction.getStatus().equals(TransactionStatus.VALID)) {
List<Transaction> newList = new ArrayList<>();
newList.add(transaction);
if (Objects.isNull(u.getValidTransactions()) || u.getValidTransactions().isEmpty()) {
u.setValidTransactions(newList);
} else {
u.getValidTransactions().add(transaction);
}
}
log.info("User details: {}", u);
return u;
})
.flatMap(userRepo::save)
.map(u -> {
if (transaction.getStatus().equals(TransactionStatus.VALID)) {
transaction.setStatus(TransactionStatus.SUCCESS);
}
return transaction;
})
.flatMap(transactionRepo::save);
}
public void asyncProcess(Transaction transaction) {
userRepo.findByCardId(transaction.getCardId())
.map(u -> {
if (transaction.getStatus().equals(TransactionStatus.VALID)) {
List<Transaction> newList = new ArrayList<>();
newList.add(transaction);
if (Objects.isNull(u.getValidTransactions()) || u.getValidTransactions().isEmpty()) {
u.setValidTransactions(newList);
} else {
u.getValidTransactions().add(transaction);
}
}
log.info("User details: {}", u);
return u;
})
.flatMap(userRepo::save)
.map(u -> {
if (transaction.getStatus().equals(TransactionStatus.VALID)) {
transaction.setStatus(TransactionStatus.SUCCESS);
producer.sendMessage(transaction);
}
return transaction;
})
.filter(t -> t.getStatus().equals(TransactionStatus.VALID)
|| t.getStatus().equals(TransactionStatus.SUCCESS)
)
.flatMap(transactionRepo::save)
.subscribe();
}
}

38
spring-reactive-architecture/account-management-service/src/main/resources/application.yml Normal file
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@@ -0,0 +1,38 @@
server:
port: 8083
# Configure Spring specific properties
spring:
# Enable/Disable hot swapping
devtools:
restart:
enabled: true
log-condition-evaluation-delta: false
# Datasource Configurations
data:
mongodb:
authentication-database: admin
uri: mongodb://vlab045701.dom045700.lab:27017/reactive
database: reactive
# Kafka Configuration
cloud:
function:
definition: consumeTransaction
stream:
kafka:
binder:
brokers: vlab045701.dom045700.lab:9092
autoCreateTopics: false
bindings:
consumeTransaction-in-0:
consumer:
max-attempts: 3
back-off-initial-interval: 100
destination: transactions
group: account-management
concurrency: 1
transaction-out-0:
destination: transactions

13
spring-reactive-architecture/account-management-service/src/test/java/io/reflectoring/account_management_service/AccountManagementServiceApplicationTests.java Normal file
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@@ -0,0 +1,13 @@
package io.reflectoring.account_management_service;
import org.junit.jupiter.api.Test;
import org.springframework.boot.test.context.SpringBootTest;
@SpringBootTest
class AccountManagementServiceApplicationTests {
@Test
void contextLoads() {
}
}

33
spring-reactive-architecture/banking-service/.gitignore vendored Normal file
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@@ -0,0 +1,33 @@
HELP.md
target/
!.mvn/wrapper/maven-wrapper.jar
!**/src/main/**/target/
!**/src/test/**/target/
### STS ###
.apt_generated
.classpath
.factorypath
.project
.settings
.springBeans
.sts4-cache
### IntelliJ IDEA ###
.idea
*.iws
*.iml
*.ipr
### NetBeans ###
/nbproject/private/
/nbbuild/
/dist/
/nbdist/
/.nb-gradle/
build/
!**/src/main/**/build/
!**/src/test/**/build/
### VS Code ###
.vscode/

BIN
spring-reactive-architecture/banking-service/.mvn/wrapper/maven-wrapper.jar vendored Normal file
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2
spring-reactive-architecture/banking-service/.mvn/wrapper/maven-wrapper.properties vendored Normal file
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@@ -0,0 +1,2 @@
distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.8.4/apache-maven-3.8.4-bin.zip
wrapperUrl=https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar

3
spring-reactive-architecture/banking-service/Dockerfile Normal file
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@@ -0,0 +1,3 @@
FROM openjdk:8-jdk-alpine
COPY target/banking-service-0.0.1-SNAPSHOT.jar app.jar
ENTRYPOINT ["java","-jar","/app.jar"]

316
spring-reactive-architecture/banking-service/mvnw vendored Normal file
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@@ -0,0 +1,316 @@
#!/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.
# ----------------------------------------------------------------------------
# ----------------------------------------------------------------------------
# Maven 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 "$MAVEN_SKIP_RC" ] ; then
if [ -f /usr/local/etc/mavenrc ] ; then
. /usr/local/etc/mavenrc
fi
if [ -f /etc/mavenrc ] ; then
. /etc/mavenrc
fi
if [ -f "$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 Mingw, 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 "$JAVA_HOME"; pwd)`"
fi
if [ -z "$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="`\\unset -f command; \\command -v 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 "$BASE_DIR" ]; then
exit 1;
fi
##########################################################################################
# Extension to allow automatically downloading the maven-wrapper.jar from Maven-central
# This allows using the maven wrapper in projects that prohibit checking in binary data.
##########################################################################################
if [ -r "$BASE_DIR/.mvn/wrapper/maven-wrapper.jar" ]; then
if [ "$MVNW_VERBOSE" = true ]; then
echo "Found .mvn/wrapper/maven-wrapper.jar"
fi
else
if [ "$MVNW_VERBOSE" = true ]; then
echo "Couldn't find .mvn/wrapper/maven-wrapper.jar, downloading it ..."
fi
if [ -n "$MVNW_REPOURL" ]; then
jarUrl="$MVNW_REPOURL/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar"
else
jarUrl="https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar"
fi
while IFS="=" read key value; do
case "$key" in (wrapperUrl) jarUrl="$value"; break ;;
esac
done < "$BASE_DIR/.mvn/wrapper/maven-wrapper.properties"
if [ "$MVNW_VERBOSE" = true ]; then
echo "Downloading from: $jarUrl"
fi
wrapperJarPath="$BASE_DIR/.mvn/wrapper/maven-wrapper.jar"
if $cygwin; then
wrapperJarPath=`cygpath --path --windows "$wrapperJarPath"`
fi
if command -v wget > /dev/null; then
if [ "$MVNW_VERBOSE" = true ]; then
echo "Found wget ... using wget"
fi
if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then
wget "$jarUrl" -O "$wrapperJarPath" || rm -f "$wrapperJarPath"
else
wget --http-user=$MVNW_USERNAME --http-password=$MVNW_PASSWORD "$jarUrl" -O "$wrapperJarPath" || rm -f "$wrapperJarPath"
fi
elif command -v curl > /dev/null; then
if [ "$MVNW_VERBOSE" = true ]; then
echo "Found curl ... using curl"
fi
if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then
curl -o "$wrapperJarPath" "$jarUrl" -f
else
curl --user $MVNW_USERNAME:$MVNW_PASSWORD -o "$wrapperJarPath" "$jarUrl" -f
fi
else
if [ "$MVNW_VERBOSE" = true ]; then
echo "Falling back to using Java to download"
fi
javaClass="$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.java"
# For Cygwin, switch paths to Windows format before running javac
if $cygwin; then
javaClass=`cygpath --path --windows "$javaClass"`
fi
if [ -e "$javaClass" ]; then
if [ ! -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then
if [ "$MVNW_VERBOSE" = true ]; then
echo " - Compiling MavenWrapperDownloader.java ..."
fi
# Compiling the Java class
("$JAVA_HOME/bin/javac" "$javaClass")
fi
if [ -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then
# Running the downloader
if [ "$MVNW_VERBOSE" = true ]; then
echo " - Running MavenWrapperDownloader.java ..."
fi
("$JAVA_HOME/bin/java" -cp .mvn/wrapper MavenWrapperDownloader "$MAVEN_PROJECTBASEDIR")
fi
fi
fi
fi
##########################################################################################
# End of extension
##########################################################################################
export MAVEN_PROJECTBASEDIR=${MAVEN_BASEDIR:-"$BASE_DIR"}
if [ "$MVNW_VERBOSE" = true ]; then
echo $MAVEN_PROJECTBASEDIR
fi
MAVEN_OPTS="$(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 "$MAVEN_PROJECTBASEDIR"`
fi
# Provide a "standardized" way to retrieve the CLI args that will
# work with both Windows and non-Windows executions.
MAVEN_CMD_LINE_ARGS="$MAVEN_CONFIG $@"
export MAVEN_CMD_LINE_ARGS
WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain
exec "$JAVACMD" \
$MAVEN_OPTS \
$MAVEN_DEBUG_OPTS \
-classpath "$MAVEN_PROJECTBASEDIR/.mvn/wrapper/maven-wrapper.jar" \
"-Dmaven.home=${M2_HOME}" \
"-Dmaven.multiModuleProjectDirectory=${MAVEN_PROJECTBASEDIR}" \
${WRAPPER_LAUNCHER} $MAVEN_CONFIG "$@"

188
spring-reactive-architecture/banking-service/mvnw.cmd vendored Normal file
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@@ -0,0 +1,188 @@
@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 Maven 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 keystroke 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 set title of command window
title %0
@REM enable echoing by 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 "%USERPROFILE%\mavenrc_pre.bat" call "%USERPROFILE%\mavenrc_pre.bat" %*
if exist "%USERPROFILE%\mavenrc_pre.cmd" call "%USERPROFILE%\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
@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="%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.jar"
set WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain
set DOWNLOAD_URL="https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar"
FOR /F "usebackq tokens=1,2 delims==" %%A IN ("%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.properties") DO (
IF "%%A"=="wrapperUrl" SET DOWNLOAD_URL=%%B
)
@REM Extension to allow automatically downloading the maven-wrapper.jar from Maven-central
@REM This allows using the maven wrapper in projects that prohibit checking in binary data.
if exist %WRAPPER_JAR% (
if "%MVNW_VERBOSE%" == "true" (
echo Found %WRAPPER_JAR%
)
) else (
if not "%MVNW_REPOURL%" == "" (
SET DOWNLOAD_URL="%MVNW_REPOURL%/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar"
)
if "%MVNW_VERBOSE%" == "true" (
echo Couldn't find %WRAPPER_JAR%, downloading it ...
echo Downloading from: %DOWNLOAD_URL%
)
powershell -Command "&{"^
"$webclient = new-object System.Net.WebClient;"^
"if (-not ([string]::IsNullOrEmpty('%MVNW_USERNAME%') -and [string]::IsNullOrEmpty('%MVNW_PASSWORD%'))) {"^
"$webclient.Credentials = new-object System.Net.NetworkCredential('%MVNW_USERNAME%', '%MVNW_PASSWORD%');"^
"}"^
"[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12; $webclient.DownloadFile('%DOWNLOAD_URL%', '%WRAPPER_JAR%')"^
"}"
if "%MVNW_VERBOSE%" == "true" (
echo Finished downloading %WRAPPER_JAR%
)
)
@REM End of extension
@REM Provide a "standardized" way to retrieve the CLI args that will
@REM work with both Windows and non-Windows executions.
set MAVEN_CMD_LINE_ARGS=%*
%MAVEN_JAVA_EXE% ^
%JVM_CONFIG_MAVEN_PROPS% ^
%MAVEN_OPTS% ^
%MAVEN_DEBUG_OPTS% ^
-classpath %WRAPPER_JAR% ^
"-Dmaven.multiModuleProjectDirectory=%MAVEN_PROJECTBASEDIR%" ^
%WRAPPER_LAUNCHER% %MAVEN_CONFIG% %*
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 "%USERPROFILE%\mavenrc_post.bat" call "%USERPROFILE%\mavenrc_post.bat"
if exist "%USERPROFILE%\mavenrc_post.cmd" call "%USERPROFILE%\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%
cmd /C exit /B %ERROR_CODE%

91
spring-reactive-architecture/banking-service/pom.xml Normal file
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<?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">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.5.3</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>io.reflectoring</groupId>
<artifactId>banking-service</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>banking-service</name>
<description>Spring Boot microservice for Banking Transaction Processing Service</description>
<properties>
<java.version>1.8</java.version>
<spring-cloud.version>2020.0.3</spring-cloud.version>
</properties>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>${spring-cloud.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-webflux</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-stream-kafka</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-mongodb-reactive</artifactId>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>io.projectreactor</groupId>
<artifactId>reactor-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.kafka</groupId>
<artifactId>spring-kafka-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<excludes>
<exclude>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</exclude>
</excludes>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-resources-plugin</artifactId>
<version>3.1.0</version>
</plugin>
</plugins>
</build>
</project>

15
spring-reactive-architecture/banking-service/src/main/java/io/reflectoring/banking_service/BankingServiceApplication.java Normal file
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package io.reflectoring.banking_service;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.data.mongodb.repository.config.EnableMongoRepositories;
@SpringBootApplication
@EnableMongoRepositories
public class BankingServiceApplication {
public static void main(String[] args) {
SpringApplication.run(BankingServiceApplication.class, args);
}
}

46
spring-reactive-architecture/banking-service/src/main/java/io/reflectoring/banking_service/config/ApplicationConfiguration.java Normal file
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package io.reflectoring.banking_service.config;
import io.netty.channel.ChannelOption;
import io.netty.handler.logging.LogLevel;
import io.netty.handler.ssl.SslContext;
import io.netty.handler.ssl.SslContextBuilder;
import io.netty.handler.ssl.util.InsecureTrustManagerFactory;
import io.netty.handler.timeout.ReadTimeoutHandler;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.client.reactive.ReactorClientHttpConnector;
import org.springframework.web.reactive.function.client.ExchangeStrategies;
import org.springframework.web.reactive.function.client.WebClient;
import reactor.netty.http.client.HttpClient;
import reactor.netty.transport.logging.AdvancedByteBufFormat;
import javax.net.ssl.SSLException;
import java.util.concurrent.TimeUnit;
@Configuration
public class ApplicationConfiguration {
@Bean
public WebClient getWebClientBuilder() throws SSLException {
SslContext sslContext = SslContextBuilder
.forClient()
.trustManager(InsecureTrustManagerFactory.INSTANCE)
.build();
HttpClient httpClient = HttpClient.create()
.option(ChannelOption.CONNECT_TIMEOUT_MILLIS, 120 * 1000)
.doOnConnected(connection -> connection.addHandlerLast(new ReadTimeoutHandler(120 * 1000, TimeUnit.MILLISECONDS)))
.wiretap("reactor.netty.http.client.HttpClient", LogLevel.DEBUG, AdvancedByteBufFormat.TEXTUAL)
.followRedirect(true)
.secure(sslContextSpec -> sslContextSpec.sslContext(sslContext));
return WebClient.builder()
.clientConnector(new ReactorClientHttpConnector(httpClient))
.exchangeStrategies(ExchangeStrategies.builder()
.codecs(configurer -> configurer.defaultCodecs()
.maxInMemorySize(50 * 1024 * 1024))
.build())
.build();
}
}

15
spring-reactive-architecture/banking-service/src/main/java/io/reflectoring/banking_service/constant/TransactionStatus.java Normal file
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@@ -0,0 +1,15 @@
package io.reflectoring.banking_service.constant;
public enum TransactionStatus {
INITIATED,
SUCCESS,
FAILURE,
CANCELLED,
VALID,
ACCOUNT_BLOCKED,
CARD_INVALID,
FUNDS_UNAVAILABLE,
FRAUDULENT,
FRAUDULENT_NOTIFY_SUCCESS,
FRAUDULENT_NOTIFY_FAILURE
}

27
spring-reactive-architecture/banking-service/src/main/java/io/reflectoring/banking_service/controller/TransactionController.java Normal file
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package io.reflectoring.banking_service.controller;
import io.reflectoring.banking_service.model.Transaction;
import io.reflectoring.banking_service.service.TransactionService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.MediaType;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import reactor.core.publisher.Mono;
@Slf4j
@RestController
@RequestMapping("/banking")
public class TransactionController {
@Autowired
private TransactionService transactionService;
@PostMapping(value = "/process", consumes = MediaType.APPLICATION_JSON_VALUE, produces = MediaType.APPLICATION_JSON_VALUE)
public Mono<Transaction> process(@RequestBody Transaction transaction) {
log.info("Process transaction with details: {}", transaction);
return transactionService.process(transaction);
}
}

61
spring-reactive-architecture/banking-service/src/main/java/io/reflectoring/banking_service/init/AppInit.java Normal file
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package io.reflectoring.banking_service.init;
import com.fasterxml.jackson.core.type.TypeReference;
import com.fasterxml.jackson.databind.ObjectMapper;
import io.reflectoring.banking_service.kafka.producer.TransactionProducer;
import io.reflectoring.banking_service.model.Transaction;
import io.reflectoring.banking_service.model.User;
import io.reflectoring.banking_service.repository.UserRepository;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.context.event.ApplicationReadyEvent;
import org.springframework.context.ApplicationListener;
import org.springframework.stereotype.Component;
import java.io.IOException;
import java.io.InputStream;
import java.util.List;
import java.util.Objects;
@Slf4j
@Component
public class AppInit implements ApplicationListener<ApplicationReadyEvent> {
@Autowired
private UserRepository userRepo;
@Autowired
TransactionProducer producer;
@Override
public void onApplicationEvent(ApplicationReadyEvent applicationReadyEvent) {
log.info("Application started");
ObjectMapper mapper = new ObjectMapper();
TypeReference<List<User>> typeReferenceUser = new TypeReference<List<User>>(){};
InputStream inputStreamUser = TypeReference.class.getResourceAsStream("/json/users.json");
try {
List<User> usersList = mapper.readValue(inputStreamUser,typeReferenceUser);
usersList.forEach(u -> {
User user = userRepo.findByCardId(u.getCardId())
.share()
.block();
if (Objects.isNull(user)) {
userRepo.save(u).subscribe();
}
});
log.info("User Saved!");
} catch (IOException e){
log.error("Unable to save User: " + e.getMessage());
}
TypeReference<List<Transaction>> typeReferenceTransaction = new TypeReference<List<Transaction>>(){};
InputStream inputStreamTransaction = TypeReference.class.getResourceAsStream("/json/transactions.json");
try {
List<Transaction> transactionsList = mapper.readValue(inputStreamTransaction, typeReferenceTransaction);
transactionsList.forEach(t -> producer.sendMessage(t));
log.info("Transactions Dispatched to Kafka topic!");
} catch (IOException e){
log.error("Unable to dispatch transactions to Kafka Topic: " + e.getMessage());
}
}
}

18
spring-reactive-architecture/banking-service/src/main/java/io/reflectoring/banking_service/kafka/consumer/TransactionConsumer.java Normal file
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package io.reflectoring.banking_service.kafka.consumer;
import io.reflectoring.banking_service.model.Transaction;
import io.reflectoring.banking_service.service.TransactionService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import java.util.function.Consumer;
@Slf4j
@Configuration
public class TransactionConsumer {
@Bean
public Consumer<Transaction> consumeTransaction(TransactionService transactionService) {
return transactionService::asyncProcess;
}
}

29
spring-reactive-architecture/banking-service/src/main/java/io/reflectoring/banking_service/kafka/producer/TransactionProducer.java Normal file
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package io.reflectoring.banking_service.kafka.producer;
import io.reflectoring.banking_service.model.Transaction;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cloud.stream.function.StreamBridge;
import org.springframework.kafka.support.KafkaHeaders;
import org.springframework.messaging.Message;
import org.springframework.messaging.support.MessageBuilder;
import org.springframework.stereotype.Service;
import java.nio.charset.StandardCharsets;
@Slf4j
@Service
public class TransactionProducer {
@Autowired
private StreamBridge streamBridge;
public void sendMessage(Transaction transaction) {
Message<Transaction> msg = MessageBuilder.withPayload(transaction)
.setHeader(KafkaHeaders.MESSAGE_KEY, transaction.getTransactionId().getBytes(StandardCharsets.UTF_8))
.build();
log.info("Transaction processed to dispatch: {}; Message dispatch successful: {}",
msg,
streamBridge.send("transaction-out-0", msg));
}
}

37
spring-reactive-architecture/banking-service/src/main/java/io/reflectoring/banking_service/model/Transaction.java Normal file
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package io.reflectoring.banking_service.model;
import com.fasterxml.jackson.annotation.JsonProperty;
import io.reflectoring.banking_service.constant.TransactionStatus;
import lombok.Data;
import lombok.NoArgsConstructor;
import lombok.ToString;
import org.springframework.data.annotation.Id;
import org.springframework.data.mongodb.core.mapping.Document;
@Data
@Document
@ToString
@NoArgsConstructor
public class Transaction {
@Id
@JsonProperty("transaction_id")
private String transactionId;
private String date;
@JsonProperty("amount_deducted")
private double amountDeducted;
@JsonProperty("store_name")
private String storeName;
@JsonProperty("store_id")
private String storeId;
@JsonProperty("card_id")
private String cardId;
@JsonProperty("transaction_location")
private String transactionLocation;
private TransactionStatus status;
}

54
spring-reactive-architecture/banking-service/src/main/java/io/reflectoring/banking_service/model/User.java Normal file
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@@ -0,0 +1,54 @@
package io.reflectoring.banking_service.model;
import com.fasterxml.jackson.annotation.JsonProperty;
import lombok.Data;
import lombok.NoArgsConstructor;
import lombok.ToString;
import org.springframework.data.annotation.Id;
import org.springframework.data.mongodb.core.mapping.Document;
import java.util.List;
@Data
@Document
@ToString
@NoArgsConstructor
public class User {
@Id
private String id;
@JsonProperty("first_name")
private String firstName;
@JsonProperty("last_name")
private String lastName;
private String email;
private String address;
@JsonProperty("home_country")
private String homeCountry;
private String gender;
private String mobile;
@JsonProperty("card_id")
private String cardId;
@JsonProperty("account_number")
private String accountNumber;
@JsonProperty("account_type")
private String accountType;
@JsonProperty("account_locked")
private boolean accountLocked;
@JsonProperty("fraudulent_activity_attempt_count")
private Long fraudulentActivityAttemptCount;
@JsonProperty("valid_transactions")
private List<Transaction> validTransactions;
@JsonProperty("fraudulent_transactions")
private List<Transaction> fraudulentTransactions;
}

9
spring-reactive-architecture/banking-service/src/main/java/io/reflectoring/banking_service/repository/TransactionRepository.java Normal file
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package io.reflectoring.banking_service.repository;
import io.reflectoring.banking_service.model.Transaction;
import org.springframework.data.mongodb.repository.ReactiveMongoRepository;
import org.springframework.stereotype.Repository;
@Repository
public interface TransactionRepository extends ReactiveMongoRepository<Transaction, String> {
}

12
spring-reactive-architecture/banking-service/src/main/java/io/reflectoring/banking_service/repository/UserRepository.java Normal file
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@@ -0,0 +1,12 @@
package io.reflectoring.banking_service.repository;
import io.reflectoring.banking_service.model.User;
import org.springframework.data.mongodb.repository.ReactiveMongoRepository;
import org.springframework.stereotype.Repository;
import reactor.core.publisher.Mono;
@Repository
public interface UserRepository extends ReactiveMongoRepository<User, String> {
Mono<User> findByCardId(String cardId);
}

159
spring-reactive-architecture/banking-service/src/main/java/io/reflectoring/banking_service/service/TransactionService.java Normal file
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package io.reflectoring.banking_service.service;
import io.reflectoring.banking_service.constant.TransactionStatus;
import io.reflectoring.banking_service.kafka.producer.TransactionProducer;
import io.reflectoring.banking_service.model.Transaction;
import io.reflectoring.banking_service.repository.TransactionRepository;
import io.reflectoring.banking_service.repository.UserRepository;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.MediaType;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.web.reactive.function.BodyInserters;
import org.springframework.web.reactive.function.client.WebClient;
import reactor.core.publisher.Mono;
import java.util.Objects;
@Slf4j
@Service
public class TransactionService {
private static final String USER_NOTIFICATION_SERVICE_URL = "http://localhost:8081/notify/fraudulent-transaction";
private static final String REPORTING_SERVICE_URL = "http://localhost:8082/report/";
private static final String ACCOUNT_MANAGER_SERVICE_URL = "http://localhost:8083/banking/process";
@Autowired
private TransactionRepository transactionRepo;
@Autowired
private UserRepository userRepo;
@Autowired
private WebClient webClient;
@Autowired
TransactionProducer producer;
@Transactional
public Mono<Transaction> process(Transaction transaction) {
return Mono.just(transaction)
.flatMap(transactionRepo::save)
.flatMap(t -> userRepo.findByCardId(t.getCardId())
.map(u -> {
log.info("User details: {}", u);
if (t.getStatus().equals(TransactionStatus.INITIATED)) {
// Check whether the card details are valid or not
if (Objects.isNull(u)) {
t.setStatus(TransactionStatus.CARD_INVALID);
}
// Check whether the account is blocked or not
else if (u.isAccountLocked()) {
t.setStatus(TransactionStatus.ACCOUNT_BLOCKED);
}
else {
// Check if it's a valid transaction or not. The Transaction would be considered valid
// if it has been requested from the same home country of the user, else will be considered
// as fraudulent
if (u.getHomeCountry().equalsIgnoreCase(t.getTransactionLocation())) {
t.setStatus(TransactionStatus.VALID);
// Call Reporting Service to report valid transaction to bank and deduct amount if funds available
return webClient.post()
.uri(REPORTING_SERVICE_URL)
.contentType(MediaType.APPLICATION_JSON)
.body(BodyInserters.fromValue(t))
.retrieve()
.bodyToMono(Transaction.class)
.zipWhen(t1 ->
// Call Account Manager service to process the transaction and send the money
webClient.post()
.uri(ACCOUNT_MANAGER_SERVICE_URL)
.contentType(MediaType.APPLICATION_JSON)
.body(BodyInserters.fromValue(t))
.retrieve()
.bodyToMono(Transaction.class)
.log(),
(t1, t2) -> t2
)
.log()
.share()
.block();
} else {
t.setStatus(TransactionStatus.FRAUDULENT);
// Call User Notification service to notify for a fraudulent transaction
// attempt from the User's card
return webClient.post()
.uri(USER_NOTIFICATION_SERVICE_URL)
.contentType(MediaType.APPLICATION_JSON)
.body(BodyInserters.fromValue(t))
.retrieve()
.bodyToMono(Transaction.class)
.zipWhen(t1 ->
// Call Reporting Service to notify bank that there has been an attempt for fraudulent transaction
// and if this attempt exceeds 3 times then auto-block the card and account
webClient.post()
.uri(REPORTING_SERVICE_URL)
.contentType(MediaType.APPLICATION_JSON)
.body(BodyInserters.fromValue(t))
.retrieve()
.bodyToMono(Transaction.class)
.log(),
(t1, t2) -> t2
)
.log()
.share()
.block();
}
}
} else {
// For any other case, the transaction will be considered failure
t.setStatus(TransactionStatus.FAILURE);
}
return t;
}));
}
public void asyncProcess(Transaction transaction) {
userRepo.findByCardId(transaction.getCardId())
.map(u -> {
if (transaction.getStatus().equals(TransactionStatus.INITIATED)) {
log.info("Consumed message for processing: {}", transaction);
log.info("User details: {}", u);
// Check whether the card details are valid or not
if (Objects.isNull(u)) {
transaction.setStatus(TransactionStatus.CARD_INVALID);
}
// Check whether the account is blocked or not
else if (u.isAccountLocked()) {
transaction.setStatus(TransactionStatus.ACCOUNT_BLOCKED);
}
else {
// Check if it's a valid transaction or not. The Transaction would be considered valid
// if it has been requested from the same home country of the user, else will be considered
// as fraudulent
if (u.getHomeCountry().equalsIgnoreCase(transaction.getTransactionLocation())) {
transaction.setStatus(TransactionStatus.VALID);
} else {
transaction.setStatus(TransactionStatus.FRAUDULENT);
}
}
producer.sendMessage(transaction);
}
return transaction;
})
.filter(t -> t.getStatus().equals(TransactionStatus.VALID)
|| t.getStatus().equals(TransactionStatus.FRAUDULENT)
|| t.getStatus().equals(TransactionStatus.CARD_INVALID)
|| t.getStatus().equals(TransactionStatus.ACCOUNT_BLOCKED)
)
.flatMap(transactionRepo::save)
.subscribe();
}
}

38
spring-reactive-architecture/banking-service/src/main/resources/application.yml Normal file
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server:
port: 8080
# Configure Spring specific properties
spring:
# Enable/Disable hot swapping
devtools:
restart:
enabled: true
log-condition-evaluation-delta: false
# Datasource Configurations
data:
mongodb:
authentication-database: admin
uri: mongodb://vlab045701.dom045700.lab:27017/reactive
database: reactive
# Kafka Configuration
cloud:
function:
definition: consumeTransaction
stream:
kafka:
binder:
brokers: vlab045701.dom045700.lab:9092
autoCreateTopics: false
bindings:
consumeTransaction-in-0:
consumer:
max-attempts: 3
back-off-initial-interval: 100
destination: transactions
group: banking
concurrency: 1
transaction-out-0:
destination: transactions

1002
spring-reactive-architecture/banking-service/src/main/resources/json/transactions.json Normal file
View File

File diff suppressed because it is too large Load Diff

162
spring-reactive-architecture/banking-service/src/main/resources/json/users.json Normal file
View File

@@ -0,0 +1,162 @@
[
{
"first_name": "Hattie",
"last_name": "Fulton",
"email": "searsgates@unia.com",
"address": "Calder Place",
"home_country": "Algeria",
"gender": "male",
"mobile": "(832) 486-3736",
"card_id": "52844ccf-91ca-48bd-8c30-3516bd640c65",
"account_number": "61ff8a47c25ca5108043fa15",
"account_type": "salary",
"account_locked": false,
"fraudulent_activity_attempt_count": 0,
"valid_transactions": [],
"fraudulent_transactions": []
},
{
"first_name": "Manning",
"last_name": "Chambers",
"email": "mercadohorn@dancity.com",
"address": "Dennett Place",
"home_country": "Botswana",
"gender": "male",
"mobile": "(860) 464-2346",
"card_id": "0b13737f-c95c-4438-83ad-d94d124b05e1",
"account_number": "61ff8a47af92b4062a9dc1dd",
"account_type": "current",
"account_locked": false,
"fraudulent_activity_attempt_count": 0,
"valid_transactions": [],
"fraudulent_transactions": []
},
{
"first_name": "Barker",
"last_name": "Guerrero",
"email": "bessiecaldwell@rockabye.com",
"address": "Cooper Street",
"home_country": "Egypt",
"gender": "female",
"mobile": "(942) 428-3863",
"card_id": "33c2275e-fbac-4c95-ab33-a8f263546541",
"account_number": "61ff8a47bfc40a4b35d07895",
"account_type": "current",
"account_locked": false,
"fraudulent_activity_attempt_count": 0,
"valid_transactions": [],
"fraudulent_transactions": []
},
{
"first_name": "Hamilton",
"last_name": "Blair",
"email": "ceciliaquinn@concility.com",
"address": "Coleridge Street",
"home_country": "Bosnia and Herzegovina",
"gender": "female",
"mobile": "(850) 510-2489",
"card_id": "2f5d3157-58cd-4a89-ae63-1159bd4c64b3",
"account_number": "61ff8a47a61ef22e408dda30",
"account_type": "savings",
"account_locked": false,
"fraudulent_activity_attempt_count": 0,
"valid_transactions": [],
"fraudulent_transactions": []
},
{
"first_name": "Dana",
"last_name": "Villarreal",
"email": "jacklyncrosby@euron.com",
"address": "Oliver Street",
"home_country": "Guyana",
"gender": "female",
"mobile": "(894) 591-3920",
"card_id": "30911fe9-dc3d-4cb7-bc34-e839b8d67a72",
"account_number": "61ff8a471c2eaaa7a7d0d89a",
"account_type": "current",
"account_locked": false,
"fraudulent_activity_attempt_count": 0,
"valid_transactions": [],
"fraudulent_transactions": []
},
{
"first_name": "Nguyen",
"last_name": "Decker",
"email": "powellprice@enquility.com",
"address": "Harway Avenue",
"home_country": "Dominican Republic",
"gender": "male",
"mobile": "(914) 431-2938",
"card_id": "acaf1636-1115-4905-ad21-a93d646a7f84",
"account_number": "61ff8a4713660cf537a297f1",
"account_type": "salary",
"account_locked": false,
"fraudulent_activity_attempt_count": 0,
"valid_transactions": [],
"fraudulent_transactions": []
},
{
"first_name": "Latasha",
"last_name": "Coffey",
"email": "laramurphy@genmy.com",
"address": "Congress Street",
"home_country": "Madagascar",
"gender": "male",
"mobile": "(992) 548-2974",
"card_id": "4f242880-9912-4ad9-a5f2-b46e68073bcf",
"account_number": "61ff8a477fb41486d55ae3c1",
"account_type": "salary",
"account_locked": false,
"fraudulent_activity_attempt_count": 0,
"valid_transactions": [],
"fraudulent_transactions": []
},
{
"first_name": "Claudia",
"last_name": "Manning",
"email": "lowerylindsey@oulu.com",
"address": "Lawn Court",
"home_country": "Spain",
"gender": "male",
"mobile": "(867) 513-2135",
"card_id": "558df3d0-c565-4dfd-b1df-909d985d4799",
"account_number": "61ff8a47ef6b552a781f31aa",
"account_type": "current",
"account_locked": false,
"fraudulent_activity_attempt_count": 0,
"valid_transactions": [],
"fraudulent_transactions": []
},
{
"first_name": "Joyce",
"last_name": "Byers",
"email": "elmaowen@anacho.com",
"address": "Veronica Place",
"home_country": "Faroe Islands",
"gender": "female",
"mobile": "(866) 553-3339",
"card_id": "86a8894c-ef9d-40f6-81dc-e72be1642277",
"account_number": "61ff8a47415933d52419165f",
"account_type": "savings",
"account_locked": false,
"fraudulent_activity_attempt_count": 0,
"valid_transactions": [],
"fraudulent_transactions": []
},
{
"first_name": "Zamora",
"last_name": "Byrd",
"email": "whitneyblackwell@buzzness.com",
"address": "Elm Place",
"home_country": "Qatar",
"gender": "female",
"mobile": "(915) 437-2947",
"card_id": "ba5acc1f-00eb-4522-b6c5-a708d9511e7f",
"account_number": "61ff8a470cfd7cc363974358",
"account_type": "salary",
"account_locked": false,
"fraudulent_activity_attempt_count": 0,
"valid_transactions": [],
"fraudulent_transactions": []
}
]

13
spring-reactive-architecture/banking-service/src/test/java/io/reflectoring/banking_service/BankingServiceApplicationTests.java Normal file
View File

@@ -0,0 +1,13 @@
package io.reflectoring.banking_service;
import org.junit.jupiter.api.Test;
import org.springframework.boot.test.context.SpringBootTest;
//@SpringBootTest
class BankingServiceApplicationTests {
// @Test
void contextLoads() {
}
}

73
spring-reactive-architecture/docker-compose.yml Normal file
View File

@@ -0,0 +1,73 @@
version: '3'
services:
zookeeper:
image: wurstmeister/zookeeper
ports:
- "2181:2181"
kafka:
image: wurstmeister/kafka
ports:
- "9092:9092"
environment:
KAFKA_ADVERTISED_HOST_NAME: 10.204.106.55
KAFKA_ZOOKEEPER_CONNECT: zookeeper:2181
KAFKA_CFG_ZOOKEEPER_CONNECT: zookeeper:2181
ALLOW_PLAINTEXT_LISTENER: "yes"
KAFKA_CFG_LOG_DIRS: /tmp/kafka_mounts/logs
KAFKA_CREATE_TOPICS: "transactions:1:2"
volumes:
- /var/run/docker.sock:/var/run/docker.sock
kafka-ui:
image: provectuslabs/kafka-ui
container_name: kafka-ui
ports:
- "8090:8080"
depends_on:
- zookeeper
- kafka
restart: always
environment:
- KAFKA_CLUSTERS_0_NAME=local
- KAFKA_CLUSTERS_0_BOOTSTRAPSERVERS=kafka:9092
- KAFKA_CLUSTERS_0_ZOOKEEPER=zookeeper:2181
mongodb:
image: mongo:latest
ports:
- "27017:27017"
volumes:
- ~/apps/mongo:/data/db
banking-service:
build: ./banking-service
ports:
- "8080:8080"
depends_on:
- zookeeper
- kafka
- mongodb
- user-notification-service
- reporting-service
- account-management-service
user-notification-service:
build: ./user-notification-service
ports:
- "8081:8081"
depends_on:
- zookeeper
- kafka
- mongodb
reporting-service:
build: ./reporting-service
ports:
- "8082:8082"
depends_on:
- zookeeper
- kafka
- mongodb
account-management-service:
build: ./account-management-service
ports:
- "8083:8083"
depends_on:
- zookeeper
- kafka
- mongodb

316
spring-reactive-architecture/mvnw vendored Normal file
View File

@@ -0,0 +1,316 @@
#!/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.
# ----------------------------------------------------------------------------
# ----------------------------------------------------------------------------
# Maven 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 "$MAVEN_SKIP_RC" ] ; then
if [ -f /usr/local/etc/mavenrc ] ; then
. /usr/local/etc/mavenrc
fi
if [ -f /etc/mavenrc ] ; then
. /etc/mavenrc
fi
if [ -f "$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 Mingw, 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 "$JAVA_HOME"; pwd)`"
fi
if [ -z "$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="`\\unset -f command; \\command -v 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 "$BASE_DIR" ]; then
exit 1;
fi
##########################################################################################
# Extension to allow automatically downloading the maven-wrapper.jar from Maven-central
# This allows using the maven wrapper in projects that prohibit checking in binary data.
##########################################################################################
if [ -r "$BASE_DIR/.mvn/wrapper/maven-wrapper.jar" ]; then
if [ "$MVNW_VERBOSE" = true ]; then
echo "Found .mvn/wrapper/maven-wrapper.jar"
fi
else
if [ "$MVNW_VERBOSE" = true ]; then
echo "Couldn't find .mvn/wrapper/maven-wrapper.jar, downloading it ..."
fi
if [ -n "$MVNW_REPOURL" ]; then
jarUrl="$MVNW_REPOURL/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar"
else
jarUrl="https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar"
fi
while IFS="=" read key value; do
case "$key" in (wrapperUrl) jarUrl="$value"; break ;;
esac
done < "$BASE_DIR/.mvn/wrapper/maven-wrapper.properties"
if [ "$MVNW_VERBOSE" = true ]; then
echo "Downloading from: $jarUrl"
fi
wrapperJarPath="$BASE_DIR/.mvn/wrapper/maven-wrapper.jar"
if $cygwin; then
wrapperJarPath=`cygpath --path --windows "$wrapperJarPath"`
fi
if command -v wget > /dev/null; then
if [ "$MVNW_VERBOSE" = true ]; then
echo "Found wget ... using wget"
fi
if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then
wget "$jarUrl" -O "$wrapperJarPath" || rm -f "$wrapperJarPath"
else
wget --http-user=$MVNW_USERNAME --http-password=$MVNW_PASSWORD "$jarUrl" -O "$wrapperJarPath" || rm -f "$wrapperJarPath"
fi
elif command -v curl > /dev/null; then
if [ "$MVNW_VERBOSE" = true ]; then
echo "Found curl ... using curl"
fi
if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then
curl -o "$wrapperJarPath" "$jarUrl" -f
else
curl --user $MVNW_USERNAME:$MVNW_PASSWORD -o "$wrapperJarPath" "$jarUrl" -f
fi
else
if [ "$MVNW_VERBOSE" = true ]; then
echo "Falling back to using Java to download"
fi
javaClass="$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.java"
# For Cygwin, switch paths to Windows format before running javac
if $cygwin; then
javaClass=`cygpath --path --windows "$javaClass"`
fi
if [ -e "$javaClass" ]; then
if [ ! -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then
if [ "$MVNW_VERBOSE" = true ]; then
echo " - Compiling MavenWrapperDownloader.java ..."
fi
# Compiling the Java class
("$JAVA_HOME/bin/javac" "$javaClass")
fi
if [ -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then
# Running the downloader
if [ "$MVNW_VERBOSE" = true ]; then
echo " - Running MavenWrapperDownloader.java ..."
fi
("$JAVA_HOME/bin/java" -cp .mvn/wrapper MavenWrapperDownloader "$MAVEN_PROJECTBASEDIR")
fi
fi
fi
fi
##########################################################################################
# End of extension
##########################################################################################
export MAVEN_PROJECTBASEDIR=${MAVEN_BASEDIR:-"$BASE_DIR"}
if [ "$MVNW_VERBOSE" = true ]; then
echo $MAVEN_PROJECTBASEDIR
fi
MAVEN_OPTS="$(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 "$MAVEN_PROJECTBASEDIR"`
fi
# Provide a "standardized" way to retrieve the CLI args that will
# work with both Windows and non-Windows executions.
MAVEN_CMD_LINE_ARGS="$MAVEN_CONFIG $@"
export MAVEN_CMD_LINE_ARGS
WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain
exec "$JAVACMD" \
$MAVEN_OPTS \
$MAVEN_DEBUG_OPTS \
-classpath "$MAVEN_PROJECTBASEDIR/.mvn/wrapper/maven-wrapper.jar" \
"-Dmaven.home=${M2_HOME}" \
"-Dmaven.multiModuleProjectDirectory=${MAVEN_PROJECTBASEDIR}" \
${WRAPPER_LAUNCHER} $MAVEN_CONFIG "$@"

188
spring-reactive-architecture/mvnw.cmd vendored Normal file
View File

@@ -0,0 +1,188 @@
@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 Maven 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 keystroke 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 set title of command window
title %0
@REM enable echoing by 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 "%USERPROFILE%\mavenrc_pre.bat" call "%USERPROFILE%\mavenrc_pre.bat" %*
if exist "%USERPROFILE%\mavenrc_pre.cmd" call "%USERPROFILE%\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
@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="%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.jar"
set WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain
set DOWNLOAD_URL="https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar"
FOR /F "usebackq tokens=1,2 delims==" %%A IN ("%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.properties") DO (
IF "%%A"=="wrapperUrl" SET DOWNLOAD_URL=%%B
)
@REM Extension to allow automatically downloading the maven-wrapper.jar from Maven-central
@REM This allows using the maven wrapper in projects that prohibit checking in binary data.
if exist %WRAPPER_JAR% (
if "%MVNW_VERBOSE%" == "true" (
echo Found %WRAPPER_JAR%
)
) else (
if not "%MVNW_REPOURL%" == "" (
SET DOWNLOAD_URL="%MVNW_REPOURL%/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar"
)
if "%MVNW_VERBOSE%" == "true" (
echo Couldn't find %WRAPPER_JAR%, downloading it ...
echo Downloading from: %DOWNLOAD_URL%
)
powershell -Command "&{"^
"$webclient = new-object System.Net.WebClient;"^
"if (-not ([string]::IsNullOrEmpty('%MVNW_USERNAME%') -and [string]::IsNullOrEmpty('%MVNW_PASSWORD%'))) {"^
"$webclient.Credentials = new-object System.Net.NetworkCredential('%MVNW_USERNAME%', '%MVNW_PASSWORD%');"^
"}"^
"[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12; $webclient.DownloadFile('%DOWNLOAD_URL%', '%WRAPPER_JAR%')"^
"}"
if "%MVNW_VERBOSE%" == "true" (
echo Finished downloading %WRAPPER_JAR%
)
)
@REM End of extension
@REM Provide a "standardized" way to retrieve the CLI args that will
@REM work with both Windows and non-Windows executions.
set MAVEN_CMD_LINE_ARGS=%*
%MAVEN_JAVA_EXE% ^
%JVM_CONFIG_MAVEN_PROPS% ^
%MAVEN_OPTS% ^
%MAVEN_DEBUG_OPTS% ^
-classpath %WRAPPER_JAR% ^
"-Dmaven.multiModuleProjectDirectory=%MAVEN_PROJECTBASEDIR%" ^
%WRAPPER_LAUNCHER% %MAVEN_CONFIG% %*
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 "%USERPROFILE%\mavenrc_post.bat" call "%USERPROFILE%\mavenrc_post.bat"
if exist "%USERPROFILE%\mavenrc_post.cmd" call "%USERPROFILE%\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%
cmd /C exit /B %ERROR_CODE%

55
spring-reactive-architecture/pom.xml Normal file
View File

@@ -0,0 +1,55 @@
<?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">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.6.6</version>
<relativePath/>
</parent>
<groupId>io.reflectoring</groupId>
<artifactId>spring-reactive-architecture</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>spring-reactive-architecture</name>
<description>Spring Boot microservice to demonstrate the advantages of Reactive Architecture over simple blocking architecture</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<excludes>
<exclude>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</exclude>
</excludes>
</configuration>
</plugin>
</plugins>
</build>
</project>

33
spring-reactive-architecture/reporting-service/.gitignore vendored Normal file
View File

@@ -0,0 +1,33 @@
HELP.md
target/
!.mvn/wrapper/maven-wrapper.jar
!**/src/main/**/target/
!**/src/test/**/target/
### STS ###
.apt_generated
.classpath
.factorypath
.project
.settings
.springBeans
.sts4-cache
### IntelliJ IDEA ###
.idea
*.iws
*.iml
*.ipr
### NetBeans ###
/nbproject/private/
/nbbuild/
/dist/
/nbdist/
/.nb-gradle/
build/
!**/src/main/**/build/
!**/src/test/**/build/
### VS Code ###
.vscode/

BIN
spring-reactive-architecture/reporting-service/.mvn/wrapper/maven-wrapper.jar vendored Normal file
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2
spring-reactive-architecture/reporting-service/.mvn/wrapper/maven-wrapper.properties vendored Normal file
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@@ -0,0 +1,2 @@
distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.8.4/apache-maven-3.8.4-bin.zip
wrapperUrl=https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar

3
spring-reactive-architecture/reporting-service/Dockerfile Normal file
View File

@@ -0,0 +1,3 @@
FROM openjdk:8-jdk-alpine
COPY target/reporting-service-0.0.1-SNAPSHOT.jar app.jar
ENTRYPOINT ["java","-jar","/app.jar"]

316
spring-reactive-architecture/reporting-service/mvnw vendored Normal file
View File

@@ -0,0 +1,316 @@
#!/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.
# ----------------------------------------------------------------------------
# ----------------------------------------------------------------------------
# Maven 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 "$MAVEN_SKIP_RC" ] ; then
if [ -f /usr/local/etc/mavenrc ] ; then
. /usr/local/etc/mavenrc
fi
if [ -f /etc/mavenrc ] ; then
. /etc/mavenrc
fi
if [ -f "$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 Mingw, 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 "$JAVA_HOME"; pwd)`"
fi
if [ -z "$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="`\\unset -f command; \\command -v 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 "$BASE_DIR" ]; then
exit 1;
fi
##########################################################################################
# Extension to allow automatically downloading the maven-wrapper.jar from Maven-central
# This allows using the maven wrapper in projects that prohibit checking in binary data.
##########################################################################################
if [ -r "$BASE_DIR/.mvn/wrapper/maven-wrapper.jar" ]; then
if [ "$MVNW_VERBOSE" = true ]; then
echo "Found .mvn/wrapper/maven-wrapper.jar"
fi
else
if [ "$MVNW_VERBOSE" = true ]; then
echo "Couldn't find .mvn/wrapper/maven-wrapper.jar, downloading it ..."
fi
if [ -n "$MVNW_REPOURL" ]; then
jarUrl="$MVNW_REPOURL/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar"
else
jarUrl="https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar"
fi
while IFS="=" read key value; do
case "$key" in (wrapperUrl) jarUrl="$value"; break ;;
esac
done < "$BASE_DIR/.mvn/wrapper/maven-wrapper.properties"
if [ "$MVNW_VERBOSE" = true ]; then
echo "Downloading from: $jarUrl"
fi
wrapperJarPath="$BASE_DIR/.mvn/wrapper/maven-wrapper.jar"
if $cygwin; then
wrapperJarPath=`cygpath --path --windows "$wrapperJarPath"`
fi
if command -v wget > /dev/null; then
if [ "$MVNW_VERBOSE" = true ]; then
echo "Found wget ... using wget"
fi
if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then
wget "$jarUrl" -O "$wrapperJarPath" || rm -f "$wrapperJarPath"
else
wget --http-user=$MVNW_USERNAME --http-password=$MVNW_PASSWORD "$jarUrl" -O "$wrapperJarPath" || rm -f "$wrapperJarPath"
fi
elif command -v curl > /dev/null; then
if [ "$MVNW_VERBOSE" = true ]; then
echo "Found curl ... using curl"
fi
if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then
curl -o "$wrapperJarPath" "$jarUrl" -f
else
curl --user $MVNW_USERNAME:$MVNW_PASSWORD -o "$wrapperJarPath" "$jarUrl" -f
fi
else
if [ "$MVNW_VERBOSE" = true ]; then
echo "Falling back to using Java to download"
fi
javaClass="$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.java"
# For Cygwin, switch paths to Windows format before running javac
if $cygwin; then
javaClass=`cygpath --path --windows "$javaClass"`
fi
if [ -e "$javaClass" ]; then
if [ ! -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then
if [ "$MVNW_VERBOSE" = true ]; then
echo " - Compiling MavenWrapperDownloader.java ..."
fi
# Compiling the Java class
("$JAVA_HOME/bin/javac" "$javaClass")
fi
if [ -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then
# Running the downloader
if [ "$MVNW_VERBOSE" = true ]; then
echo " - Running MavenWrapperDownloader.java ..."
fi
("$JAVA_HOME/bin/java" -cp .mvn/wrapper MavenWrapperDownloader "$MAVEN_PROJECTBASEDIR")
fi
fi
fi
fi
##########################################################################################
# End of extension
##########################################################################################
export MAVEN_PROJECTBASEDIR=${MAVEN_BASEDIR:-"$BASE_DIR"}
if [ "$MVNW_VERBOSE" = true ]; then
echo $MAVEN_PROJECTBASEDIR
fi
MAVEN_OPTS="$(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 "$MAVEN_PROJECTBASEDIR"`
fi
# Provide a "standardized" way to retrieve the CLI args that will
# work with both Windows and non-Windows executions.
MAVEN_CMD_LINE_ARGS="$MAVEN_CONFIG $@"
export MAVEN_CMD_LINE_ARGS
WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain
exec "$JAVACMD" \
$MAVEN_OPTS \
$MAVEN_DEBUG_OPTS \
-classpath "$MAVEN_PROJECTBASEDIR/.mvn/wrapper/maven-wrapper.jar" \
"-Dmaven.home=${M2_HOME}" \
"-Dmaven.multiModuleProjectDirectory=${MAVEN_PROJECTBASEDIR}" \
${WRAPPER_LAUNCHER} $MAVEN_CONFIG "$@"

188
spring-reactive-architecture/reporting-service/mvnw.cmd vendored Normal file
View File

@@ -0,0 +1,188 @@
@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 Maven 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 keystroke 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 set title of command window
title %0
@REM enable echoing by 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 "%USERPROFILE%\mavenrc_pre.bat" call "%USERPROFILE%\mavenrc_pre.bat" %*
if exist "%USERPROFILE%\mavenrc_pre.cmd" call "%USERPROFILE%\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
@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="%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.jar"
set WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain
set DOWNLOAD_URL="https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar"
FOR /F "usebackq tokens=1,2 delims==" %%A IN ("%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.properties") DO (
IF "%%A"=="wrapperUrl" SET DOWNLOAD_URL=%%B
)
@REM Extension to allow automatically downloading the maven-wrapper.jar from Maven-central
@REM This allows using the maven wrapper in projects that prohibit checking in binary data.
if exist %WRAPPER_JAR% (
if "%MVNW_VERBOSE%" == "true" (
echo Found %WRAPPER_JAR%
)
) else (
if not "%MVNW_REPOURL%" == "" (
SET DOWNLOAD_URL="%MVNW_REPOURL%/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar"
)
if "%MVNW_VERBOSE%" == "true" (
echo Couldn't find %WRAPPER_JAR%, downloading it ...
echo Downloading from: %DOWNLOAD_URL%
)
powershell -Command "&{"^
"$webclient = new-object System.Net.WebClient;"^
"if (-not ([string]::IsNullOrEmpty('%MVNW_USERNAME%') -and [string]::IsNullOrEmpty('%MVNW_PASSWORD%'))) {"^
"$webclient.Credentials = new-object System.Net.NetworkCredential('%MVNW_USERNAME%', '%MVNW_PASSWORD%');"^
"}"^
"[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12; $webclient.DownloadFile('%DOWNLOAD_URL%', '%WRAPPER_JAR%')"^
"}"
if "%MVNW_VERBOSE%" == "true" (
echo Finished downloading %WRAPPER_JAR%
)
)
@REM End of extension
@REM Provide a "standardized" way to retrieve the CLI args that will
@REM work with both Windows and non-Windows executions.
set MAVEN_CMD_LINE_ARGS=%*
%MAVEN_JAVA_EXE% ^
%JVM_CONFIG_MAVEN_PROPS% ^
%MAVEN_OPTS% ^
%MAVEN_DEBUG_OPTS% ^
-classpath %WRAPPER_JAR% ^
"-Dmaven.multiModuleProjectDirectory=%MAVEN_PROJECTBASEDIR%" ^
%WRAPPER_LAUNCHER% %MAVEN_CONFIG% %*
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 "%USERPROFILE%\mavenrc_post.bat" call "%USERPROFILE%\mavenrc_post.bat"
if exist "%USERPROFILE%\mavenrc_post.cmd" call "%USERPROFILE%\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%
cmd /C exit /B %ERROR_CODE%

97
spring-reactive-architecture/reporting-service/pom.xml Normal file
View File

@@ -0,0 +1,97 @@
<?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">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.5.3</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>io.reflectoring</groupId>
<artifactId>reporting-service</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>reporting-service</name>
<description>Spring Boot to generate reports for different kind of transactions and alert Bank</description>
<properties>
<java.version>1.8</java.version>
<spring-cloud.version>2020.0.3</spring-cloud.version>
</properties>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>${spring-cloud.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-webflux</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-stream-kafka</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-mongodb-reactive</artifactId>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>io.projectreactor</groupId>
<artifactId>reactor-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.kafka</groupId>
<artifactId>spring-kafka-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<excludes>
<exclude>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</exclude>
</excludes>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-resources-plugin</artifactId>
<version>3.1.0</version>
</plugin>
</plugins>
</build>
</project>

13
spring-reactive-architecture/reporting-service/src/main/java/io/reflectoring/reporting_service/ReportingServiceApplication.java Normal file
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@@ -0,0 +1,13 @@
package io.reflectoring.reporting_service;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class ReportingServiceApplication {
public static void main(String[] args) {
SpringApplication.run(ReportingServiceApplication.class, args);
}
}

15
spring-reactive-architecture/reporting-service/src/main/java/io/reflectoring/reporting_service/constant/TransactionStatus.java Normal file
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@@ -0,0 +1,15 @@
package io.reflectoring.reporting_service.constant;
public enum TransactionStatus {
INITIATED,
SUCCESS,
FAILURE,
CANCELLED,
VALID,
ACCOUNT_BLOCKED,
CARD_INVALID,
FUNDS_UNAVAILABLE,
FRAUDULENT,
FRAUDULENT_NOTIFY_SUCCESS,
FRAUDULENT_NOTIFY_FAILURE
}

26
spring-reactive-architecture/reporting-service/src/main/java/io/reflectoring/reporting_service/controller/ReportingController.java Normal file
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@@ -0,0 +1,26 @@
package io.reflectoring.reporting_service.controller;
import io.reflectoring.reporting_service.model.Transaction;
import io.reflectoring.reporting_service.service.ReportingService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import reactor.core.publisher.Mono;
@Slf4j
@RestController
@RequestMapping("/report")
public class ReportingController {
@Autowired
private ReportingService reportingService;
@PostMapping("/")
public Mono<Transaction> report(@RequestBody Transaction transaction) {
log.info("Process transaction with details in reporting service: {}", transaction);
return reportingService.report(transaction);
}
}

19
spring-reactive-architecture/reporting-service/src/main/java/io/reflectoring/reporting_service/kafka/consumer/TransactionConsumer.java Normal file
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@@ -0,0 +1,19 @@
package io.reflectoring.reporting_service.kafka.consumer;
import io.reflectoring.reporting_service.model.Transaction;
import io.reflectoring.reporting_service.service.ReportingService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import java.util.function.Consumer;
@Slf4j
@Configuration
public class TransactionConsumer {
@Bean
public Consumer<Transaction> consumeTransaction(ReportingService reportingService) {
return reportingService::asyncProcess;
}
}

29
spring-reactive-architecture/reporting-service/src/main/java/io/reflectoring/reporting_service/kafka/producer/TransactionProducer.java Normal file
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@@ -0,0 +1,29 @@
package io.reflectoring.reporting_service.kafka.producer;
import io.reflectoring.reporting_service.model.Transaction;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cloud.stream.function.StreamBridge;
import org.springframework.kafka.support.KafkaHeaders;
import org.springframework.messaging.Message;
import org.springframework.messaging.support.MessageBuilder;
import org.springframework.stereotype.Service;
import java.nio.charset.StandardCharsets;
@Slf4j
@Service
public class TransactionProducer {
@Autowired
private StreamBridge streamBridge;
public void sendMessage(Transaction transaction) {
Message<Transaction> msg = MessageBuilder.withPayload(transaction)
.setHeader(KafkaHeaders.MESSAGE_KEY, transaction.getTransactionId().getBytes(StandardCharsets.UTF_8))
.build();
log.info("Transaction processed to dispatch: {}; Message dispatch successful: {}",
msg,
streamBridge.send("transaction-out-0", msg));
}
}

37
spring-reactive-architecture/reporting-service/src/main/java/io/reflectoring/reporting_service/model/Transaction.java Normal file
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@@ -0,0 +1,37 @@
package io.reflectoring.reporting_service.model;
import com.fasterxml.jackson.annotation.JsonProperty;
import io.reflectoring.reporting_service.constant.TransactionStatus;
import lombok.Data;
import lombok.NoArgsConstructor;
import lombok.ToString;
import org.springframework.data.annotation.Id;
import org.springframework.data.mongodb.core.mapping.Document;
@Data
@Document
@ToString
@NoArgsConstructor
public class Transaction {
@Id
@JsonProperty("transaction_id")
private String transactionId;
private String date;
@JsonProperty("amount_deducted")
private double amountDeducted;
@JsonProperty("store_name")
private String storeName;
@JsonProperty("store_id")
private String storeId;
@JsonProperty("card_id")
private String cardId;
@JsonProperty("transaction_location")
private String transactionLocation;
private TransactionStatus status;
}

57
spring-reactive-architecture/reporting-service/src/main/java/io/reflectoring/reporting_service/model/User.java Normal file
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@@ -0,0 +1,57 @@
package io.reflectoring.reporting_service.model;
import com.fasterxml.jackson.annotation.JsonProperty;
import lombok.Data;
import lombok.NoArgsConstructor;
import lombok.ToString;
import org.springframework.data.annotation.Id;
import org.springframework.data.annotation.Transient;
import org.springframework.data.mongodb.core.mapping.Document;
import java.util.List;
@Data
@Document
@ToString
@NoArgsConstructor
public class User {
@Id
private String id;
@JsonProperty("first_name")
private String firstName;
@JsonProperty("last_name")
private String lastName;
private String email;
private String address;
@JsonProperty("home_country")
private String homeCountry;
private String gender;
private String mobile;
@JsonProperty("card_id")
private String cardId;
@JsonProperty("account_number")
private String accountNumber;
@JsonProperty("account_type")
private String accountType;
@JsonProperty("account_locked")
private boolean accountLocked;
@JsonProperty("fraudulent_activity_attempt_count")
private Long fraudulentActivityAttemptCount;
@Transient
@JsonProperty("valid_transactions")
private List<Transaction> validTransactions;
@Transient
@JsonProperty("fraudulent_transactions")
private List<Transaction> fraudulentTransactions;
}

7
spring-reactive-architecture/reporting-service/src/main/java/io/reflectoring/reporting_service/repository/TransactionRepository.java Normal file
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@@ -0,0 +1,7 @@
package io.reflectoring.reporting_service.repository;
import io.reflectoring.reporting_service.model.Transaction;
import org.springframework.data.mongodb.repository.ReactiveMongoRepository;
public interface TransactionRepository extends ReactiveMongoRepository<Transaction, String> {
}

10
spring-reactive-architecture/reporting-service/src/main/java/io/reflectoring/reporting_service/repository/UserRepository.java Normal file
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@@ -0,0 +1,10 @@
package io.reflectoring.reporting_service.repository;
import io.reflectoring.reporting_service.model.User;
import org.springframework.data.mongodb.repository.ReactiveMongoRepository;
import reactor.core.publisher.Mono;
public interface UserRepository extends ReactiveMongoRepository<User, String> {
Mono<User> findByCardId(String cardId);
}

99
spring-reactive-architecture/reporting-service/src/main/java/io/reflectoring/reporting_service/service/ReportingService.java Normal file
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@@ -0,0 +1,99 @@
package io.reflectoring.reporting_service.service;
import io.reflectoring.reporting_service.constant.TransactionStatus;
import io.reflectoring.reporting_service.kafka.producer.TransactionProducer;
import io.reflectoring.reporting_service.model.Transaction;
import io.reflectoring.reporting_service.model.User;
import io.reflectoring.reporting_service.repository.TransactionRepository;
import io.reflectoring.reporting_service.repository.UserRepository;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import reactor.core.publisher.Mono;
import java.util.ArrayList;
import java.util.List;
import java.util.Objects;
@Slf4j
@Service
public class ReportingService {
@Autowired
private TransactionRepository transactionRepo;
@Autowired
private UserRepository userRepo;
@Autowired
private TransactionProducer producer;
public Mono<Transaction> report(Transaction transaction) {
return userRepo.findByCardId(transaction.getCardId())
.map(u -> {
if (transaction.getStatus().equals(TransactionStatus.FRAUDULENT)
|| transaction.getStatus().equals(TransactionStatus.FRAUDULENT_NOTIFY_SUCCESS)
|| transaction.getStatus().equals(TransactionStatus.FRAUDULENT_NOTIFY_FAILURE)) {
// Report the User's account and take automatic action against User's account or card
u.setFraudulentActivityAttemptCount(u.getFraudulentActivityAttemptCount() + 1);
u.setAccountLocked(u.getFraudulentActivityAttemptCount() > 3);
List<Transaction> newList = new ArrayList<>();
newList.add(transaction);
if (Objects.isNull(u.getFraudulentTransactions()) || u.getFraudulentTransactions().isEmpty()) {
u.setFraudulentTransactions(newList);
} else {
u.getFraudulentTransactions().add(transaction);
}
}
log.info("User details: {}", u);
return u;
})
.flatMap(userRepo::save)
.map(u -> {
if (!transaction.getStatus().equals(TransactionStatus.VALID)) {
transaction.setStatus(u.isAccountLocked()
? TransactionStatus.ACCOUNT_BLOCKED : TransactionStatus.FAILURE);
}
return transaction;
})
.flatMap(transactionRepo::save);
}
public void asyncProcess(Transaction transaction) {
userRepo.findByCardId(transaction.getCardId())
.map(u -> {
if (transaction.getStatus().equals(TransactionStatus.FRAUDULENT)
|| transaction.getStatus().equals(TransactionStatus.FRAUDULENT_NOTIFY_SUCCESS)
|| transaction.getStatus().equals(TransactionStatus.FRAUDULENT_NOTIFY_FAILURE)) {
// Report the User's account and take automatic action against User's account or card
u.setFraudulentActivityAttemptCount(u.getFraudulentActivityAttemptCount() + 1);
u.setAccountLocked(u.getFraudulentActivityAttemptCount() > 3);
List<Transaction> newList = new ArrayList<>();
newList.add(transaction);
if (Objects.isNull(u.getFraudulentTransactions()) || u.getFraudulentTransactions().isEmpty()) {
u.setFraudulentTransactions(newList);
} else {
u.getFraudulentTransactions().add(transaction);
}
}
log.info("User details: {}", u);
return u;
})
.flatMap(userRepo::save)
.map(u -> {
if (!transaction.getStatus().equals(TransactionStatus.VALID)) {
transaction.setStatus(u.isAccountLocked()
? TransactionStatus.ACCOUNT_BLOCKED : TransactionStatus.FAILURE);
producer.sendMessage(transaction);
}
return transaction;
})
.filter(t -> t.getStatus().equals(TransactionStatus.FAILURE)
|| t.getStatus().equals(TransactionStatus.ACCOUNT_BLOCKED)
)
.flatMap(transactionRepo::save)
.subscribe();
}
}

38
spring-reactive-architecture/reporting-service/src/main/resources/application.yml Normal file
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@@ -0,0 +1,38 @@
server:
port: 8082
# Configure Spring specific properties
spring:
# Enable/Disable hot swapping
devtools:
restart:
enabled: true
log-condition-evaluation-delta: false
# Datasource Configurations
data:
mongodb:
authentication-database: admin
uri: mongodb://vlab045701.dom045700.lab:27017/reactive
database: reactive
# Kafka Configuration
cloud:
function:
definition: consumeTransaction
stream:
kafka:
binder:
brokers: vlab045701.dom045700.lab:9092
autoCreateTopics: false
bindings:
consumeTransaction-in-0:
consumer:
max-attempts: 3
back-off-initial-interval: 100
destination: transactions
group: reporting
concurrency: 1
transaction-out-0:
destination: transactions

13
spring-reactive-architecture/reporting-service/src/test/java/io/reflectoring/reporting_service/ReportingServiceApplicationTests.java Normal file
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@@ -0,0 +1,13 @@
package io.reflectoring.reporting_service;
import org.junit.jupiter.api.Test;
import org.springframework.boot.test.context.SpringBootTest;
@SpringBootTest
class ReportingServiceApplicationTests {
@Test
void contextLoads() {
}
}

33
spring-reactive-architecture/user-notification-service/.gitignore vendored Normal file
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@@ -0,0 +1,33 @@
HELP.md
target/
!.mvn/wrapper/maven-wrapper.jar
!**/src/main/**/target/
!**/src/test/**/target/
### STS ###
.apt_generated
.classpath
.factorypath
.project
.settings
.springBeans
.sts4-cache
### IntelliJ IDEA ###
.idea
*.iws
*.iml
*.ipr
### NetBeans ###
/nbproject/private/
/nbbuild/
/dist/
/nbdist/
/.nb-gradle/
build/
!**/src/main/**/build/
!**/src/test/**/build/
### VS Code ###
.vscode/

BIN
spring-reactive-architecture/user-notification-service/.mvn/wrapper/maven-wrapper.jar vendored Normal file
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Binary file not shown.

2
spring-reactive-architecture/user-notification-service/.mvn/wrapper/maven-wrapper.properties vendored Normal file
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@@ -0,0 +1,2 @@
distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.8.4/apache-maven-3.8.4-bin.zip
wrapperUrl=https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar

3
spring-reactive-architecture/user-notification-service/Dockerfile Normal file
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@@ -0,0 +1,3 @@
FROM openjdk:8-jdk-alpine
COPY target/user-notification-service-0.0.1-SNAPSHOT.jar app.jar
ENTRYPOINT ["java","-jar","/app.jar"]

316
spring-reactive-architecture/user-notification-service/mvnw vendored Normal file
View File

@@ -0,0 +1,316 @@
#!/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.
# ----------------------------------------------------------------------------
# ----------------------------------------------------------------------------
# Maven 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 "$MAVEN_SKIP_RC" ] ; then
if [ -f /usr/local/etc/mavenrc ] ; then
. /usr/local/etc/mavenrc
fi
if [ -f /etc/mavenrc ] ; then
. /etc/mavenrc
fi
if [ -f "$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 Mingw, 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 "$JAVA_HOME"; pwd)`"
fi
if [ -z "$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="`\\unset -f command; \\command -v 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 "$BASE_DIR" ]; then
exit 1;
fi
##########################################################################################
# Extension to allow automatically downloading the maven-wrapper.jar from Maven-central
# This allows using the maven wrapper in projects that prohibit checking in binary data.
##########################################################################################
if [ -r "$BASE_DIR/.mvn/wrapper/maven-wrapper.jar" ]; then
if [ "$MVNW_VERBOSE" = true ]; then
echo "Found .mvn/wrapper/maven-wrapper.jar"
fi
else
if [ "$MVNW_VERBOSE" = true ]; then
echo "Couldn't find .mvn/wrapper/maven-wrapper.jar, downloading it ..."
fi
if [ -n "$MVNW_REPOURL" ]; then
jarUrl="$MVNW_REPOURL/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar"
else
jarUrl="https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar"
fi
while IFS="=" read key value; do
case "$key" in (wrapperUrl) jarUrl="$value"; break ;;
esac
done < "$BASE_DIR/.mvn/wrapper/maven-wrapper.properties"
if [ "$MVNW_VERBOSE" = true ]; then
echo "Downloading from: $jarUrl"
fi
wrapperJarPath="$BASE_DIR/.mvn/wrapper/maven-wrapper.jar"
if $cygwin; then
wrapperJarPath=`cygpath --path --windows "$wrapperJarPath"`
fi
if command -v wget > /dev/null; then
if [ "$MVNW_VERBOSE" = true ]; then
echo "Found wget ... using wget"
fi
if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then
wget "$jarUrl" -O "$wrapperJarPath" || rm -f "$wrapperJarPath"
else
wget --http-user=$MVNW_USERNAME --http-password=$MVNW_PASSWORD "$jarUrl" -O "$wrapperJarPath" || rm -f "$wrapperJarPath"
fi
elif command -v curl > /dev/null; then
if [ "$MVNW_VERBOSE" = true ]; then
echo "Found curl ... using curl"
fi
if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then
curl -o "$wrapperJarPath" "$jarUrl" -f
else
curl --user $MVNW_USERNAME:$MVNW_PASSWORD -o "$wrapperJarPath" "$jarUrl" -f
fi
else
if [ "$MVNW_VERBOSE" = true ]; then
echo "Falling back to using Java to download"
fi
javaClass="$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.java"
# For Cygwin, switch paths to Windows format before running javac
if $cygwin; then
javaClass=`cygpath --path --windows "$javaClass"`
fi
if [ -e "$javaClass" ]; then
if [ ! -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then
if [ "$MVNW_VERBOSE" = true ]; then
echo " - Compiling MavenWrapperDownloader.java ..."
fi
# Compiling the Java class
("$JAVA_HOME/bin/javac" "$javaClass")
fi
if [ -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then
# Running the downloader
if [ "$MVNW_VERBOSE" = true ]; then
echo " - Running MavenWrapperDownloader.java ..."
fi
("$JAVA_HOME/bin/java" -cp .mvn/wrapper MavenWrapperDownloader "$MAVEN_PROJECTBASEDIR")
fi
fi
fi
fi
##########################################################################################
# End of extension
##########################################################################################
export MAVEN_PROJECTBASEDIR=${MAVEN_BASEDIR:-"$BASE_DIR"}
if [ "$MVNW_VERBOSE" = true ]; then
echo $MAVEN_PROJECTBASEDIR
fi
MAVEN_OPTS="$(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 "$MAVEN_PROJECTBASEDIR"`
fi
# Provide a "standardized" way to retrieve the CLI args that will
# work with both Windows and non-Windows executions.
MAVEN_CMD_LINE_ARGS="$MAVEN_CONFIG $@"
export MAVEN_CMD_LINE_ARGS
WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain
exec "$JAVACMD" \
$MAVEN_OPTS \
$MAVEN_DEBUG_OPTS \
-classpath "$MAVEN_PROJECTBASEDIR/.mvn/wrapper/maven-wrapper.jar" \
"-Dmaven.home=${M2_HOME}" \
"-Dmaven.multiModuleProjectDirectory=${MAVEN_PROJECTBASEDIR}" \
${WRAPPER_LAUNCHER} $MAVEN_CONFIG "$@"

188
spring-reactive-architecture/user-notification-service/mvnw.cmd vendored Normal file
View File

@@ -0,0 +1,188 @@
@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 Maven 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 keystroke 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 set title of command window
title %0
@REM enable echoing by 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 "%USERPROFILE%\mavenrc_pre.bat" call "%USERPROFILE%\mavenrc_pre.bat" %*
if exist "%USERPROFILE%\mavenrc_pre.cmd" call "%USERPROFILE%\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
@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="%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.jar"
set WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain
set DOWNLOAD_URL="https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar"
FOR /F "usebackq tokens=1,2 delims==" %%A IN ("%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.properties") DO (
IF "%%A"=="wrapperUrl" SET DOWNLOAD_URL=%%B
)
@REM Extension to allow automatically downloading the maven-wrapper.jar from Maven-central
@REM This allows using the maven wrapper in projects that prohibit checking in binary data.
if exist %WRAPPER_JAR% (
if "%MVNW_VERBOSE%" == "true" (
echo Found %WRAPPER_JAR%
)
) else (
if not "%MVNW_REPOURL%" == "" (
SET DOWNLOAD_URL="%MVNW_REPOURL%/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar"
)
if "%MVNW_VERBOSE%" == "true" (
echo Couldn't find %WRAPPER_JAR%, downloading it ...
echo Downloading from: %DOWNLOAD_URL%
)
powershell -Command "&{"^
"$webclient = new-object System.Net.WebClient;"^
"if (-not ([string]::IsNullOrEmpty('%MVNW_USERNAME%') -and [string]::IsNullOrEmpty('%MVNW_PASSWORD%'))) {"^
"$webclient.Credentials = new-object System.Net.NetworkCredential('%MVNW_USERNAME%', '%MVNW_PASSWORD%');"^
"}"^
"[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12; $webclient.DownloadFile('%DOWNLOAD_URL%', '%WRAPPER_JAR%')"^
"}"
if "%MVNW_VERBOSE%" == "true" (
echo Finished downloading %WRAPPER_JAR%
)
)
@REM End of extension
@REM Provide a "standardized" way to retrieve the CLI args that will
@REM work with both Windows and non-Windows executions.
set MAVEN_CMD_LINE_ARGS=%*
%MAVEN_JAVA_EXE% ^
%JVM_CONFIG_MAVEN_PROPS% ^
%MAVEN_OPTS% ^
%MAVEN_DEBUG_OPTS% ^
-classpath %WRAPPER_JAR% ^
"-Dmaven.multiModuleProjectDirectory=%MAVEN_PROJECTBASEDIR%" ^
%WRAPPER_LAUNCHER% %MAVEN_CONFIG% %*
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 "%USERPROFILE%\mavenrc_post.bat" call "%USERPROFILE%\mavenrc_post.bat"
if exist "%USERPROFILE%\mavenrc_post.cmd" call "%USERPROFILE%\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%
cmd /C exit /B %ERROR_CODE%

101
spring-reactive-architecture/user-notification-service/pom.xml Normal file
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<?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">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.5.3</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>io.reflectoring</groupId>
<artifactId>user-notification-service</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>user-notification-service</name>
<description>Spring Boot microservice to notify Users on the transaction information</description>
<properties>
<java.version>1.8</java.version>
<spring-cloud.version>2020.0.3</spring-cloud.version>
</properties>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>${spring-cloud.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-webflux</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-stream-kafka</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-mail</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-mongodb-reactive</artifactId>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>io.projectreactor</groupId>
<artifactId>reactor-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.kafka</groupId>
<artifactId>spring-kafka-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<excludes>
<exclude>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</exclude>
</excludes>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-resources-plugin</artifactId>
<version>3.1.0</version>
</plugin>
</plugins>
</build>
</project>

13
spring-reactive-architecture/user-notification-service/src/main/java/io/reflectoring/user_notification_service/UserNotificationServiceApplication.java Normal file
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@@ -0,0 +1,13 @@
package io.reflectoring.user_notification_service;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class UserNotificationServiceApplication {
public static void main(String[] args) {
SpringApplication.run(UserNotificationServiceApplication.class, args);
}
}

30
spring-reactive-architecture/user-notification-service/src/main/java/io/reflectoring/user_notification_service/config/ApplicationConfiguration.java Normal file
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package io.reflectoring.user_notification_service.config;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.mail.javamail.JavaMailSenderImpl;
import java.util.Properties;
@Configuration
public class ApplicationConfiguration {
@Bean
public JavaMailSender getJavaMailSender() {
JavaMailSenderImpl mailSender = new JavaMailSenderImpl();
mailSender.setHost("smtp.gmail.com");
mailSender.setPort(587);
mailSender.setUsername("my.gmail@gmail.com");
mailSender.setPassword("password");
Properties props = mailSender.getJavaMailProperties();
props.put("mail.transport.protocol", "smtp");
props.put("mail.smtp.auth", "true");
props.put("mail.smtp.starttls.enable", "true");
props.put("mail.debug", "true");
return mailSender;
}
}

15
spring-reactive-architecture/user-notification-service/src/main/java/io/reflectoring/user_notification_service/constant/TransactionStatus.java Normal file
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@@ -0,0 +1,15 @@
package io.reflectoring.user_notification_service.constant;
public enum TransactionStatus {
INITIATED,
SUCCESS,
FAILURE,
CANCELLED,
VALID,
ACCOUNT_BLOCKED,
CARD_INVALID,
FUNDS_UNAVAILABLE,
FRAUDULENT,
FRAUDULENT_NOTIFY_SUCCESS,
FRAUDULENT_NOTIFY_FAILURE
}

26
spring-reactive-architecture/user-notification-service/src/main/java/io/reflectoring/user_notification_service/controller/UserNotificationController.java Normal file
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@@ -0,0 +1,26 @@
package io.reflectoring.user_notification_service.controller;
import io.reflectoring.user_notification_service.model.Transaction;
import io.reflectoring.user_notification_service.service.UserNotificationService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import reactor.core.publisher.Mono;
@Slf4j
@RestController
@RequestMapping("/notify")
public class UserNotificationController {
@Autowired
private UserNotificationService userNotificationService;
@PostMapping("/fraudulent-transaction")
public Mono<Transaction> notify(@RequestBody Transaction transaction) {
log.info("Process transaction with details and notify user: {}", transaction);
return userNotificationService.notify(transaction);
}
}

19
spring-reactive-architecture/user-notification-service/src/main/java/io/reflectoring/user_notification_service/kafka/consumer/TransactionConsumer.java Normal file
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@@ -0,0 +1,19 @@
package io.reflectoring.user_notification_service.kafka.consumer;
import io.reflectoring.user_notification_service.model.Transaction;
import io.reflectoring.user_notification_service.service.UserNotificationService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import java.util.function.Consumer;
@Slf4j
@Configuration
public class TransactionConsumer {
@Bean
public Consumer<Transaction> consumeTransaction(UserNotificationService userNotificationService) {
return userNotificationService::asyncProcess;
}
}

29
spring-reactive-architecture/user-notification-service/src/main/java/io/reflectoring/user_notification_service/kafka/producer/TransactionProducer.java Normal file
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@@ -0,0 +1,29 @@
package io.reflectoring.user_notification_service.kafka.producer;
import io.reflectoring.user_notification_service.model.Transaction;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cloud.stream.function.StreamBridge;
import org.springframework.kafka.support.KafkaHeaders;
import org.springframework.messaging.Message;
import org.springframework.messaging.support.MessageBuilder;
import org.springframework.stereotype.Service;
import java.nio.charset.StandardCharsets;
@Slf4j
@Service
public class TransactionProducer {
@Autowired
private StreamBridge streamBridge;
public void sendMessage(Transaction transaction) {
Message<Transaction> msg = MessageBuilder.withPayload(transaction)
.setHeader(KafkaHeaders.MESSAGE_KEY, transaction.getTransactionId().getBytes(StandardCharsets.UTF_8))
.build();
log.info("Transaction processed to dispatch: {}; Message dispatch successful: {}",
msg,
streamBridge.send("transaction-out-0", msg));
}
}

37
spring-reactive-architecture/user-notification-service/src/main/java/io/reflectoring/user_notification_service/model/Transaction.java Normal file
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@@ -0,0 +1,37 @@
package io.reflectoring.user_notification_service.model;
import com.fasterxml.jackson.annotation.JsonProperty;
import io.reflectoring.user_notification_service.constant.TransactionStatus;
import lombok.Data;
import lombok.NoArgsConstructor;
import lombok.ToString;
import org.springframework.data.annotation.Id;
import org.springframework.data.mongodb.core.mapping.Document;
@Data
@Document
@ToString
@NoArgsConstructor
public class Transaction {
@Id
@JsonProperty("transaction_id")
private String transactionId;
private String date;
@JsonProperty("amount_deducted")
private double amountDeducted;
@JsonProperty("store_name")
private String storeName;
@JsonProperty("store_id")
private String storeId;
@JsonProperty("card_id")
private String cardId;
@JsonProperty("transaction_location")
private String transactionLocation;
private TransactionStatus status;
}

57
spring-reactive-architecture/user-notification-service/src/main/java/io/reflectoring/user_notification_service/model/User.java Normal file
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@@ -0,0 +1,57 @@
package io.reflectoring.user_notification_service.model;
import com.fasterxml.jackson.annotation.JsonProperty;
import lombok.Data;
import lombok.NoArgsConstructor;
import lombok.ToString;
import org.springframework.data.annotation.Id;
import org.springframework.data.annotation.Transient;
import org.springframework.data.mongodb.core.mapping.Document;
import java.util.List;
@Data
@Document
@ToString
@NoArgsConstructor
public class User {
@Id
private String id;
@JsonProperty("first_name")
private String firstName;
@JsonProperty("last_name")
private String lastName;
private String email;
private String address;
@JsonProperty("home_country")
private String homeCountry;
private String gender;
private String mobile;
@JsonProperty("card_id")
private String cardId;
@JsonProperty("account_number")
private String accountNumber;
@JsonProperty("account_type")
private String accountType;
@JsonProperty("account_locked")
private boolean accountLocked;
@JsonProperty("fraudulent_activity_attempt_count")
private Long fraudulentActivityAttemptCount;
@Transient
@JsonProperty("valid_transactions")
private List<Transaction> validTransactions;
@Transient
@JsonProperty("fraudulent_transactions")
private List<Transaction> fraudulentTransactions;
}

7
spring-reactive-architecture/user-notification-service/src/main/java/io/reflectoring/user_notification_service/repository/TransactionRepository.java Normal file
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@@ -0,0 +1,7 @@
package io.reflectoring.user_notification_service.repository;
import io.reflectoring.user_notification_service.model.Transaction;
import org.springframework.data.mongodb.repository.ReactiveMongoRepository;
public interface TransactionRepository extends ReactiveMongoRepository<Transaction, String> {
}

10
spring-reactive-architecture/user-notification-service/src/main/java/io/reflectoring/user_notification_service/repository/UserRepository.java Normal file
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@@ -0,0 +1,10 @@
package io.reflectoring.user_notification_service.repository;
import io.reflectoring.user_notification_service.model.User;
import org.springframework.data.mongodb.repository.ReactiveMongoRepository;
import reactor.core.publisher.Mono;
public interface UserRepository extends ReactiveMongoRepository<User, String> {
Mono<User> findByCardId(String cardId);
}

92
spring-reactive-architecture/user-notification-service/src/main/java/io/reflectoring/user_notification_service/service/UserNotificationService.java Normal file
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@@ -0,0 +1,92 @@
package io.reflectoring.user_notification_service.service;
import io.reflectoring.user_notification_service.constant.TransactionStatus;
import io.reflectoring.user_notification_service.kafka.producer.TransactionProducer;
import io.reflectoring.user_notification_service.model.Transaction;
import io.reflectoring.user_notification_service.repository.TransactionRepository;
import io.reflectoring.user_notification_service.repository.UserRepository;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.mail.MailException;
import org.springframework.mail.SimpleMailMessage;
import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.stereotype.Service;
import reactor.core.publisher.Mono;
@Slf4j
@Service
public class UserNotificationService {
@Autowired
private TransactionRepository transactionRepo;
@Autowired
private UserRepository userRepo;
@Autowired
private JavaMailSender emailSender;
@Autowired
private TransactionProducer producer;
public Mono<Transaction> notify(Transaction transaction) {
return userRepo.findByCardId(transaction.getCardId())
.map(u -> {
if (transaction.getStatus().equals(TransactionStatus.FRAUDULENT)) {
// Notify user by sending email
SimpleMailMessage message = new SimpleMailMessage();
message.setFrom("noreply@baeldung.com");
message.setTo(u.getEmail());
message.setSubject("Fraudulent transaction attempt from your card");
message.setText("An attempt has been made to pay " + transaction.getStoreName()
+ " from card " + transaction.getCardId() + " in the country "
+ transaction.getTransactionLocation() + "." +
" Please report to your bank or block your card.");
emailSender.send(message);
transaction.setStatus(TransactionStatus.FRAUDULENT_NOTIFY_SUCCESS);
} else {
transaction.setStatus(TransactionStatus.FRAUDULENT_NOTIFY_FAILURE);
}
return transaction;
})
.onErrorReturn(transaction)
.flatMap(transactionRepo::save);
}
public void asyncProcess(Transaction transaction) {
userRepo.findByCardId(transaction.getCardId())
.map(u -> {
if (transaction.getStatus().equals(TransactionStatus.FRAUDULENT)) {
try {
// Notify user by sending email
SimpleMailMessage message = new SimpleMailMessage();
message.setFrom("noreply@baeldung.com");
message.setTo(u.getEmail());
message.setSubject("Fraudulent transaction attempt from your card");
message.setText("An attempt has been made to pay " + transaction.getStoreName()
+ " from card " + transaction.getCardId() + " in the country "
+ transaction.getTransactionLocation() + "." +
" Please report to your bank or block your card.");
emailSender.send(message);
transaction.setStatus(TransactionStatus.FRAUDULENT_NOTIFY_SUCCESS);
} catch (MailException e) {
transaction.setStatus(TransactionStatus.FRAUDULENT_NOTIFY_FAILURE);
}
}
return transaction;
})
.onErrorReturn(transaction)
.filter(t -> t.getStatus().equals(TransactionStatus.FRAUDULENT)
|| t.getStatus().equals(TransactionStatus.FRAUDULENT_NOTIFY_SUCCESS)
|| t.getStatus().equals(TransactionStatus.FRAUDULENT_NOTIFY_FAILURE)
)
.map(t -> {
producer.sendMessage(t);
return t;
})
.flatMap(transactionRepo::save)
.subscribe();
}
}

38
spring-reactive-architecture/user-notification-service/src/main/resources/application.yml Normal file
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@@ -0,0 +1,38 @@
server:
port: 8081
# Configure Spring specific properties
spring:
# Enable/Disable hot swapping
devtools:
restart:
enabled: true
log-condition-evaluation-delta: false
# Datasource Configurations
data:
mongodb:
authentication-database: admin
uri: mongodb://vlab045701.dom045700.lab:27017/reactive
database: reactive
# Kafka Configuration
cloud:
function:
definition: consumeTransaction
stream:
kafka:
binder:
brokers: vlab045701.dom045700.lab:9092
autoCreateTopics: false
bindings:
consumeTransaction-in-0:
consumer:
max-attempts: 3
back-off-initial-interval: 100
destination: transactions
group: user-notification
concurrency: 1
transaction-out-0:
destination: transactions

13
spring-reactive-architecture/user-notification-service/src/test/java/io/reflectoring/user_notification_service/UserNotificationServiceApplicationTests.java Normal file
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@@ -0,0 +1,13 @@
package io.reflectoring.user_notification_service;
import org.junit.jupiter.api.Test;
import org.springframework.boot.test.context.SpringBootTest;
@SpringBootTest
class UserNotificationServiceApplicationTests {
@Test
void contextLoads() {
}
}