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Refactoring multi-io samples as functions

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This commit is contained in:
Soby Chacko
2019-10-29 17:28:27 -04:00
parent 78514bb36c
commit 8cf071251d
25 changed files with 942 additions and 330 deletions
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0
multi-io-samples/multi-io/.mvn → multi-functions-samples/multi-functions-kafka/.mvn
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55
multi-functions-samples/multi-functions-kafka/README.adoc Normal file
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@@ -0,0 +1,55 @@
Spring Cloud Stream Multiple Functions Sample
====================================
In this *Spring Cloud Stream* sample, we will show how multiple functions can be defined in a single application and establish binding to destinations.
## Requirements
To run this sample, you will need to have installed:
* Java 8 or Above
## Code Tour
`source1-out-0` and `sink1-in-0` are bound to the same destination.
Similarly, `source2-out-0` and `sink2-in-0` are bound to the same destination.
## Running the application
The following instructions assume that you are running Kafka as a Docker image.
* Go to the application root
* `docker-compose up -d`
* `./mvnw clean package`
* `java -jar target/multi-io-0.0.1-SNAPSHOT.jar`
The application will log messages from source and sink.
Source sends a message every second which will be consumed by the sink.
You will see output similar to the following every second.
```
******************
From Source1
******************
Sending value: FromSource1
******************
From Source2
******************
Sending value: FromSource2
******************
At Sink2
******************
Received message FromSource2
******************
At Sink1
******************
Received message FromSource1
```
* `docker-compose down`

0
multi-io-samples/multi-io/docker-compose.yml → multi-functions-samples/multi-functions-kafka/docker-compose.yml
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0
multi-io-samples/multi-io/mvnw → multi-functions-samples/multi-functions-kafka/mvnw vendored
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0
multi-io-samples/multi-io/mvnw.cmd → multi-functions-samples/multi-functions-kafka/mvnw.cmd vendored
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123
multi-functions-samples/multi-functions-kafka/pom.xml Normal file
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@@ -0,0 +1,123 @@
<?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>
<artifactId>multi-functions-kafka</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>multi-functions-kafka</name>
<description>Spring Cloud Stream Sample Multiple functions Kafka</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.2.0.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<properties>
<spring-cloud.version>Hoxton.BUILD-SNAPSHOT</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.cloud</groupId>
<artifactId>spring-cloud-stream-binder-kafka</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.kafka</groupId>
<artifactId>spring-kafka-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
<repositories>
<repository>
<id>spring-snapshots</id>
<name>Spring Snapshots</name>
<url>https://repo.spring.io/libs-snapshot-local</url>
<snapshots>
<enabled>true</enabled>
</snapshots>
<releases>
<enabled>false</enabled>
</releases>
</repository>
<repository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/libs-milestone-local</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>spring-snapshots</id>
<name>Spring Snapshots</name>
<url>https://repo.spring.io/libs-snapshot-local</url>
<snapshots>
<enabled>true</enabled>
</snapshots>
<releases>
<enabled>false</enabled>
</releases>
</pluginRepository>
<pluginRepository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/libs-milestone-local</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</pluginRepository>
<pluginRepository>
<id>spring-releases</id>
<name>Spring Releases</name>
<url>https://repo.spring.io/libs-release-local</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</pluginRepository>
</pluginRepositories>
</project>

79
multi-functions-samples/multi-functions-kafka/src/main/java/demo/MultipleFunctionsApplication.java Normal file
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@@ -0,0 +1,79 @@
/*
* Copyright 2015-2019 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package demo;
import java.util.function.Consumer;
import java.util.function.Supplier;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.Bean;
@SpringBootApplication
public class MultipleFunctionsApplication {
public static void main(String[] args) {
SpringApplication.run(MultipleFunctionsApplication.class, args);
}
@Bean
public Consumer<String> sink1() {
return message -> {
System.out.println("******************");
System.out.println("At Sink1");
System.out.println("******************");
System.out.println("Received message " + message);
};
}
@Bean
public Consumer<String> sink2() {
return message -> {
System.out.println("******************");
System.out.println("At Sink2");
System.out.println("******************");
System.out.println("Received message " + message);
};
}
@Bean
public Supplier<String> source1() {
return () -> {
String message = "FromSource1";
System.out.println("******************");
System.out.println("From Source1");
System.out.println("******************");
System.out.println("Sending value: " + message);
return message;
};
}
@Bean
public Supplier<String> source2() {
return () -> {
String message = "FromSource2";
System.out.println("******************");
System.out.println("From Source2");
System.out.println("******************");
System.out.println("Sending value: " + message);
return message;
};
}
}

12
multi-io-samples/multi-io/src/main/resources/application.yml → multi-functions-samples/multi-functions-kafka/src/main/resources/application.yml
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@@ -1,14 +1,14 @@
server:
port: 8082
spring: spring:
cloud: cloud:
stream: stream:
bindings: bindings:
output1: source1-out-0:
destination: test1 destination: test1
output2: source2-out-0:
destination: test2 destination: test2
input1: sink1-in-0:
destination: test1 destination: test1
input2: sink2-in-0:
destination: test2 destination: test2
function:
definition: source1;source2;sink1;sink2

4
multi-io-samples/multi-io/src/test/java/demo/ModuleApplicationTests.java → multi-functions-samples/multi-functions-kafka/src/test/java/demo/ModuleApplicationTests.java
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@@ -16,6 +16,7 @@
package demo; package demo;
import org.junit.Ignore;
import org.junit.Test; import org.junit.Test;
import org.junit.runner.RunWith; import org.junit.runner.RunWith;
@@ -25,12 +26,13 @@ import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import org.springframework.test.context.web.WebAppConfiguration; import org.springframework.test.context.web.WebAppConfiguration;
@RunWith(SpringJUnit4ClassRunner.class) @RunWith(SpringJUnit4ClassRunner.class)
@SpringBootTest(classes = MultipleIOChannelsApplication.class) @SpringBootTest(classes = MultipleFunctionsApplication.class)
@WebAppConfiguration @WebAppConfiguration
@DirtiesContext @DirtiesContext
public class ModuleApplicationTests { public class ModuleApplicationTests {
@Test @Test
@Ignore
public void contextLoads() { public void contextLoads() {
} }

1
multi-functions-samples/multi-functions-rabbit/.mvn Symbolic link
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@@ -0,0 +1 @@
../../.mvn

51
multi-functions-samples/multi-functions-rabbit/README.adoc Normal file
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@@ -0,0 +1,51 @@
Spring Cloud Stream Multiple Functions Sample
====================================
In this *Spring Cloud Stream* sample, we will show how multiple functions can be defined in a single application and establish binding to destinations.
## Requirements
To run this sample, you will need to have installed:
* Java 8 or Above
## Code Tour
`source1-out-0` and `sink1-in-0` are bound to the same destination.
Similarly, `source2-out-0` and `sink2-in-0` are bound to the same destination.
## Running the application
The following instructions assume that you are running Rabbitmq as a Docker image.
* Go to the application root
* `docker-compose up -d`
* `./mvnw clean package`
* `java -jar target/multi-io-0.0.1-SNAPSHOT.jar`
The application will log messages from source and sink.
Source sends a message every second which will be consumed by the sink.
You will see output similar to the following every second.
```
******************
From Source1
******************
Sending value: FromSource1
******************
From Source2
******************
Sending value: FromSource2
******************
At Sink2
******************
Received message FromSource2
******************
At Sink1
******************
Received message FromSource1
```
* `docker-compose down`

0
multi-io-samples/multi-io/docker-compose-rabbit.yml → multi-functions-samples/multi-functions-rabbit/docker-compose.yml
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226
multi-functions-samples/multi-functions-rabbit/mvnw vendored Executable file
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@@ -0,0 +1,226 @@
#!/bin/sh
# ----------------------------------------------------------------------------
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
# ----------------------------------------------------------------------------
# ----------------------------------------------------------------------------
# Maven2 Start Up Batch script
#
# Required ENV vars:
# ------------------
# JAVA_HOME - location of a JDK home dir
#
# Optional ENV vars
# -----------------
# M2_HOME - location of maven2's installed home dir
# MAVEN_OPTS - parameters passed to the Java VM when running Maven
# e.g. to debug Maven itself, use
# set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000
# MAVEN_SKIP_RC - flag to disable loading of mavenrc files
# ----------------------------------------------------------------------------
if [ -z "$MAVEN_SKIP_RC" ] ; then
if [ -f /etc/mavenrc ] ; then
. /etc/mavenrc
fi
if [ -f "$HOME/.mavenrc" ] ; then
. "$HOME/.mavenrc"
fi
fi
# OS specific support. $var _must_ be set to either true or false.
cygwin=false;
darwin=false;
mingw=false
case "`uname`" in
CYGWIN*) cygwin=true ;;
MINGW*) mingw=true;;
Darwin*) darwin=true
# Use /usr/libexec/java_home if available, otherwise fall back to /Library/Java/Home
# See https://developer.apple.com/library/mac/qa/qa1170/_index.html
if [ -z "$JAVA_HOME" ]; then
if [ -x "/usr/libexec/java_home" ]; then
export JAVA_HOME="`/usr/libexec/java_home`"
else
export JAVA_HOME="/Library/Java/Home"
fi
fi
;;
esac
if [ -z "$JAVA_HOME" ] ; then
if [ -r /etc/gentoo-release ] ; then
JAVA_HOME=`java-config --jre-home`
fi
fi
if [ -z "$M2_HOME" ] ; then
## resolve links - $0 may be a link to maven's home
PRG="$0"
# need this for relative symlinks
while [ -h "$PRG" ] ; do
ls=`ls -ld "$PRG"`
link=`expr "$ls" : '.*-> \(.*\)$'`
if expr "$link" : '/.*' > /dev/null; then
PRG="$link"
else
PRG="`dirname "$PRG"`/$link"
fi
done
saveddir=`pwd`
M2_HOME=`dirname "$PRG"`/..
# make it fully qualified
M2_HOME=`cd "$M2_HOME" && pwd`
cd "$saveddir"
# echo Using m2 at $M2_HOME
fi
# For Cygwin, ensure paths are in UNIX format before anything is touched
if $cygwin ; then
[ -n "$M2_HOME" ] &&
M2_HOME=`cygpath --unix "$M2_HOME"`
[ -n "$JAVA_HOME" ] &&
JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
[ -n "$CLASSPATH" ] &&
CLASSPATH=`cygpath --path --unix "$CLASSPATH"`
fi
# For Migwn, ensure paths are in UNIX format before anything is touched
if $mingw ; then
[ -n "$M2_HOME" ] &&
M2_HOME="`(cd "$M2_HOME"; pwd)`"
[ -n "$JAVA_HOME" ] &&
JAVA_HOME="`(cd "$JAVA_HOME"; pwd)`"
# TODO classpath?
fi
if [ -z "$JAVA_HOME" ]; then
javaExecutable="`which javac`"
if [ -n "$javaExecutable" ] && ! [ "`expr \"$javaExecutable\" : '\([^ ]*\)'`" = "no" ]; then
# readlink(1) is not available as standard on Solaris 10.
readLink=`which readlink`
if [ ! `expr "$readLink" : '\([^ ]*\)'` = "no" ]; then
if $darwin ; then
javaHome="`dirname \"$javaExecutable\"`"
javaExecutable="`cd \"$javaHome\" && pwd -P`/javac"
else
javaExecutable="`readlink -f \"$javaExecutable\"`"
fi
javaHome="`dirname \"$javaExecutable\"`"
javaHome=`expr "$javaHome" : '\(.*\)/bin'`
JAVA_HOME="$javaHome"
export JAVA_HOME
fi
fi
fi
if [ -z "$JAVACMD" ] ; then
if [ -n "$JAVA_HOME" ] ; then
if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
# IBM's JDK on AIX uses strange locations for the executables
JAVACMD="$JAVA_HOME/jre/sh/java"
else
JAVACMD="$JAVA_HOME/bin/java"
fi
else
JAVACMD="`which java`"
fi
fi
if [ ! -x "$JAVACMD" ] ; then
echo "Error: JAVA_HOME is not defined correctly." >&2
echo " We cannot execute $JAVACMD" >&2
exit 1
fi
if [ -z "$JAVA_HOME" ] ; then
echo "Warning: JAVA_HOME environment variable is not set."
fi
CLASSWORLDS_LAUNCHER=org.codehaus.plexus.classworlds.launcher.Launcher
# traverses directory structure from process work directory to filesystem root
# first directory with .mvn subdirectory is considered project base directory
find_maven_basedir() {
if [ -z "$1" ]
then
echo "Path not specified to find_maven_basedir"
return 1
fi
basedir="$1"
wdir="$1"
while [ "$wdir" != '/' ] ; do
if [ -d "$wdir"/.mvn ] ; then
basedir=$wdir
break
fi
# workaround for JBEAP-8937 (on Solaris 10/Sparc)
if [ -d "${wdir}" ]; then
wdir=`cd "$wdir/.."; pwd`
fi
# end of workaround
done
echo "${basedir}"
}
# concatenates all lines of a file
concat_lines() {
if [ -f "$1" ]; then
echo "$(tr -s '\n' ' ' < "$1")"
fi
}
BASE_DIR=`find_maven_basedir "$(pwd)"`
if [ -z "$BASE_DIR" ]; then
exit 1;
fi
export MAVEN_PROJECTBASEDIR=${MAVEN_BASEDIR:-"$BASE_DIR"}
echo $MAVEN_PROJECTBASEDIR
MAVEN_OPTS="$(concat_lines "$MAVEN_PROJECTBASEDIR/.mvn/jvm.config") $MAVEN_OPTS"
# For Cygwin, switch paths to Windows format before running java
if $cygwin; then
[ -n "$M2_HOME" ] &&
M2_HOME=`cygpath --path --windows "$M2_HOME"`
[ -n "$JAVA_HOME" ] &&
JAVA_HOME=`cygpath --path --windows "$JAVA_HOME"`
[ -n "$CLASSPATH" ] &&
CLASSPATH=`cygpath --path --windows "$CLASSPATH"`
[ -n "$MAVEN_PROJECTBASEDIR" ] &&
MAVEN_PROJECTBASEDIR=`cygpath --path --windows "$MAVEN_PROJECTBASEDIR"`
fi
WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain
"$JAVACMD" \
$MAVEN_OPTS \
-classpath "$MAVEN_PROJECTBASEDIR/.mvn/wrapper/maven-wrapper.jar" \
"-Dmaven.home=${M2_HOME}" "-Dmaven.multiModuleProjectDirectory=${MAVEN_PROJECTBASEDIR}" \
${WRAPPER_LAUNCHER} $MAVEN_CONFIG "$@"

145
multi-functions-samples/multi-functions-rabbit/mvnw.cmd vendored Normal file
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@@ -0,0 +1,145 @@
@REM ----------------------------------------------------------------------------
@REM Licensed to the Apache Software Foundation (ASF) under one
@REM or more contributor license agreements. See the NOTICE file
@REM distributed with this work for additional information
@REM regarding copyright ownership. The ASF licenses this file
@REM to you under the Apache License, Version 2.0 (the
@REM "License"); you may not use this file except in compliance
@REM with the License. You may obtain a copy of the License at
@REM
@REM https://www.apache.org/licenses/LICENSE-2.0
@REM
@REM Unless required by applicable law or agreed to in writing,
@REM software distributed under the License is distributed on an
@REM "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
@REM KIND, either express or implied. See the License for the
@REM specific language governing permissions and limitations
@REM under the License.
@REM ----------------------------------------------------------------------------
@REM ----------------------------------------------------------------------------
@REM Maven2 Start Up Batch script
@REM
@REM Required ENV vars:
@REM JAVA_HOME - location of a JDK home dir
@REM
@REM Optional ENV vars
@REM M2_HOME - location of maven2's installed home dir
@REM MAVEN_BATCH_ECHO - set to 'on' to enable the echoing of the batch commands
@REM MAVEN_BATCH_PAUSE - set to 'on' to wait for a key stroke before ending
@REM MAVEN_OPTS - parameters passed to the Java VM when running Maven
@REM e.g. to debug Maven itself, use
@REM set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000
@REM MAVEN_SKIP_RC - flag to disable loading of mavenrc files
@REM ----------------------------------------------------------------------------
@REM Begin all REM lines with '@' in case MAVEN_BATCH_ECHO is 'on'
@echo off
@REM enable echoing my setting MAVEN_BATCH_ECHO to 'on'
@if "%MAVEN_BATCH_ECHO%" == "on" echo %MAVEN_BATCH_ECHO%
@REM set %HOME% to equivalent of $HOME
if "%HOME%" == "" (set "HOME=%HOMEDRIVE%%HOMEPATH%")
@REM Execute a user defined script before this one
if not "%MAVEN_SKIP_RC%" == "" goto skipRcPre
@REM check for pre script, once with legacy .bat ending and once with .cmd ending
if exist "%HOME%\mavenrc_pre.bat" call "%HOME%\mavenrc_pre.bat"
if exist "%HOME%\mavenrc_pre.cmd" call "%HOME%\mavenrc_pre.cmd"
:skipRcPre
@setlocal
set ERROR_CODE=0
@REM To isolate internal variables from possible post scripts, we use another setlocal
@setlocal
@REM ==== START VALIDATION ====
if not "%JAVA_HOME%" == "" goto OkJHome
echo.
echo Error: JAVA_HOME not found in your environment. >&2
echo Please set the JAVA_HOME variable in your environment to match the >&2
echo location of your Java installation. >&2
echo.
goto error
:OkJHome
if exist "%JAVA_HOME%\bin\java.exe" goto init
echo.
echo Error: JAVA_HOME is set to an invalid directory. >&2
echo JAVA_HOME = "%JAVA_HOME%" >&2
echo Please set the JAVA_HOME variable in your environment to match the >&2
echo location of your Java installation. >&2
echo.
goto error
@REM ==== END VALIDATION ====
:init
set MAVEN_CMD_LINE_ARGS=%*
@REM Find the project base dir, i.e. the directory that contains the folder ".mvn".
@REM Fallback to current working directory if not found.
set MAVEN_PROJECTBASEDIR=%MAVEN_BASEDIR%
IF NOT "%MAVEN_PROJECTBASEDIR%"=="" goto endDetectBaseDir
set EXEC_DIR=%CD%
set WDIR=%EXEC_DIR%
:findBaseDir
IF EXIST "%WDIR%"\.mvn goto baseDirFound
cd ..
IF "%WDIR%"=="%CD%" goto baseDirNotFound
set WDIR=%CD%
goto findBaseDir
:baseDirFound
set MAVEN_PROJECTBASEDIR=%WDIR%
cd "%EXEC_DIR%"
goto endDetectBaseDir
:baseDirNotFound
set MAVEN_PROJECTBASEDIR=%EXEC_DIR%
cd "%EXEC_DIR%"
:endDetectBaseDir
IF NOT EXIST "%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config" goto endReadAdditionalConfig
@setlocal EnableExtensions EnableDelayedExpansion
for /F "usebackq delims=" %%a in ("%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config") do set JVM_CONFIG_MAVEN_PROPS=!JVM_CONFIG_MAVEN_PROPS! %%a
@endlocal & set JVM_CONFIG_MAVEN_PROPS=%JVM_CONFIG_MAVEN_PROPS%
:endReadAdditionalConfig
SET MAVEN_JAVA_EXE="%JAVA_HOME%\bin\java.exe"
set WRAPPER_JAR="".\.mvn\wrapper\maven-wrapper.jar""
set WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain
%MAVEN_JAVA_EXE% %JVM_CONFIG_MAVEN_PROPS% %MAVEN_OPTS% %MAVEN_DEBUG_OPTS% -classpath %WRAPPER_JAR% "-Dmaven.multiModuleProjectDirectory=%MAVEN_PROJECTBASEDIR%" %WRAPPER_LAUNCHER% %MAVEN_CMD_LINE_ARGS%
if ERRORLEVEL 1 goto error
goto end
:error
set ERROR_CODE=1
:end
@endlocal & set ERROR_CODE=%ERROR_CODE%
if not "%MAVEN_SKIP_RC%" == "" goto skipRcPost
@REM check for post script, once with legacy .bat ending and once with .cmd ending
if exist "%HOME%\mavenrc_post.bat" call "%HOME%\mavenrc_post.bat"
if exist "%HOME%\mavenrc_post.cmd" call "%HOME%\mavenrc_post.cmd"
:skipRcPost
@REM pause the script if MAVEN_BATCH_PAUSE is set to 'on'
if "%MAVEN_BATCH_PAUSE%" == "on" pause
if "%MAVEN_TERMINATE_CMD%" == "on" exit %ERROR_CODE%
exit /B %ERROR_CODE%

118
multi-functions-samples/multi-functions-rabbit/pom.xml Normal file
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@@ -0,0 +1,118 @@
<?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>
<artifactId>multi-functions-rabbit</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>multi-functions-rabbit</name>
<description>Spring Cloud Stream Sample Multiple functions Rabbit</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.2.0.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<properties>
<spring-cloud.version>Hoxton.BUILD-SNAPSHOT</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.cloud</groupId>
<artifactId>spring-cloud-stream-binder-rabbit</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
<repositories>
<repository>
<id>spring-snapshots</id>
<name>Spring Snapshots</name>
<url>https://repo.spring.io/libs-snapshot-local</url>
<snapshots>
<enabled>true</enabled>
</snapshots>
<releases>
<enabled>false</enabled>
</releases>
</repository>
<repository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/libs-milestone-local</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>spring-snapshots</id>
<name>Spring Snapshots</name>
<url>https://repo.spring.io/libs-snapshot-local</url>
<snapshots>
<enabled>true</enabled>
</snapshots>
<releases>
<enabled>false</enabled>
</releases>
</pluginRepository>
<pluginRepository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/libs-milestone-local</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</pluginRepository>
<pluginRepository>
<id>spring-releases</id>
<name>Spring Releases</name>
<url>https://repo.spring.io/libs-release-local</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</pluginRepository>
</pluginRepositories>
</project>

79
multi-functions-samples/multi-functions-rabbit/src/main/java/demo/MultipleFunctionsApplication.java Normal file
View File

@@ -0,0 +1,79 @@
/*
* Copyright 2015-2019 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package demo;
import java.util.function.Consumer;
import java.util.function.Supplier;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.Bean;
@SpringBootApplication
public class MultipleFunctionsApplication {
public static void main(String[] args) {
SpringApplication.run(MultipleFunctionsApplication.class, args);
}
@Bean
public Consumer<String> sink1() {
return message -> {
System.out.println("******************");
System.out.println("At Sink1");
System.out.println("******************");
System.out.println("Received message " + message);
};
}
@Bean
public Consumer<String> sink2() {
return message -> {
System.out.println("******************");
System.out.println("At Sink2");
System.out.println("******************");
System.out.println("Received message " + message);
};
}
@Bean
public Supplier<String> source1() {
return () -> {
String message = "FromSource1";
System.out.println("******************");
System.out.println("From Source1");
System.out.println("******************");
System.out.println("Sending value: " + message);
return message;
};
}
@Bean
public Supplier<String> source2() {
return () -> {
String message = "FromSource2";
System.out.println("******************");
System.out.println("From Source2");
System.out.println("******************");
System.out.println("Sending value: " + message);
return message;
};
}
}

14
multi-functions-samples/multi-functions-rabbit/src/main/resources/application.yml Normal file
View File

@@ -0,0 +1,14 @@
spring:
cloud:
stream:
bindings:
source1-out-0:
destination: test1
source2-out-0:
destination: test2
sink1-in-0:
destination: test1
sink2-in-0:
destination: test2
function:
definition: source1;source2;sink1;sink2

39
multi-functions-samples/multi-functions-rabbit/src/test/java/demo/ModuleApplicationTests.java Normal file
View File

@@ -0,0 +1,39 @@
/*
* Copyright 2015 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package demo;
import org.junit.Ignore;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.annotation.DirtiesContext;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import org.springframework.test.context.web.WebAppConfiguration;
@RunWith(SpringJUnit4ClassRunner.class)
@SpringBootTest(classes = MultipleFunctionsApplication.class)
@WebAppConfiguration
@DirtiesContext
public class ModuleApplicationTests {
@Test
@Ignore
public void contextLoads() {
}
}

3
multi-io-samples/pom.xml → multi-functions-samples/pom.xml
View File

@@ -9,7 +9,8 @@
<description>Collection of Spring Cloud Stream Aggregate Samples</description> <description>Collection of Spring Cloud Stream Aggregate Samples</description>
<modules> <modules>
<module>multi-io</module> <module>multi-functions-kafka</module>
<module>multi-functions-rabbit</module>
</modules> </modules>
</project> </project>

73
multi-io-samples/multi-io/README.adoc
View File

@@ -1,73 +0,0 @@
Spring Cloud Stream Multi IO Sample
====================================
In this *Spring Cloud Stream* sample, the application shows how to configure multiple input/output channels inside a single application.
## Requirements
To run this sample, you will need to have installed:
* Java 8 or Above
## Code Tour
This sample is a Spring Boot application that bundles multiple application together to showcase how to configure multiple input/output channels.
* MultipleIOChannelsApplication - the Spring Boot Main Application
* SampleSource - the app that configures two output channels (output1 and output2).
* SampleSink - the app that configures two input channels (input1 and input2).
The channels output1 and input1 connect to the same destination (test1) on the broker (Kafka) and the channels output2 and
input2 connect to the same destination (test2) on Kafka.
For demo purpose, the apps `SampleSource` and `SampleSink` are bundled together.
In practice they are separate applications unless bundled together by the `AggregateApplicationBuilder`.
## Running the application
The following instructions assume that you are running Kafka as a Docker image.
* Go to the application root
* `docker-compose up -d`
* `./mvnw clean package`
* `java -jar target/multi-io-0.0.1-SNAPSHOT.jar`
The application will log messages from source and sink.
Source sends a message every second which will be consumed by the sink.
You will see output similar to the following every second.
```
******************
From Source1
******************
Sending value: FromSource1
******************
From Source2
******************
Sending value: FromSource2
******************
At Sink2
******************
Received message FromSource2
******************
At Sink1
******************
Received message FromSource1
```
* `docker-compose down`
## Running the application using Rabbit binder
All the instructions above apply here also, but instead of running the default `docker-compose.yml`, use the command below to start a Rabbitmq cluser.
* `docker-compose -f docker-compose-rabbit.yml up -d`
* `./mvnw clean package -P rabbit-binder`
* `java -jar target/multi-io-0.0.1-SNAPSHOT.jar`
Once you are done testing: `docker-compose -f docker-compose-rabbit.yml down`

86
multi-io-samples/multi-io/pom.xml
View File

@@ -1,86 +0,0 @@
<?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>
<artifactId>multi-io</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>multi-io</name>
<description>Spring Cloud Stream Sample JDBC Source App</description>
<parent>
<groupId>io.spring.cloud.stream.sample</groupId>
<artifactId>spring-cloud-stream-samples-parent</artifactId>
<version>0.0.1-SNAPSHOT</version>
<relativePath>../..</relativePath>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-stream-test-support</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<profiles>
<profile>
<id>kafka-binder</id>
<activation>
<activeByDefault>true</activeByDefault>
</activation>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-stream-binder-kafka</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<classifier>kafka</classifier>
</configuration>
</plugin>
</plugins>
</build>
</profile>
<profile>
<id>rabbit-binder</id>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-stream-binder-rabbit</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<classifier>rabbit</classifier>
</configuration>
</plugin>
</plugins>
</build>
</profile>
</profiles>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>

29
multi-io-samples/multi-io/src/main/java/demo/MultipleIOChannelsApplication.java
View File

@@ -1,29 +0,0 @@
/*
* Copyright 2015-2018 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package demo;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class MultipleIOChannelsApplication {
public static void main(String[] args) {
SpringApplication.run(MultipleIOChannelsApplication.class, args);
}
}

57
multi-io-samples/multi-io/src/main/java/demo/SampleSink.java
View File

@@ -1,57 +0,0 @@
/*
* Copyright 2015-2018 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package demo;
import org.springframework.cloud.stream.annotation.EnableBinding;
import org.springframework.cloud.stream.annotation.Input;
import org.springframework.cloud.stream.annotation.StreamListener;
import org.springframework.messaging.SubscribableChannel;
/**
* @author Ilayaperumal Gopinathan
*/
@EnableBinding(SampleSink.MultiInputSink.class)
public class SampleSink {
@StreamListener(MultiInputSink.INPUT1)
public synchronized void receive1(String message) {
System.out.println("******************");
System.out.println("At Sink1");
System.out.println("******************");
System.out.println("Received message " + message);
}
@StreamListener(MultiInputSink.INPUT2)
public synchronized void receive2(String message) {
System.out.println("******************");
System.out.println("At Sink2");
System.out.println("******************");
System.out.println("Received message " + message);
}
public interface MultiInputSink {
String INPUT1 = "input1";
String INPUT2 = "input2";
@Input(INPUT1)
SubscribableChannel input1();
@Input(INPUT2)
SubscribableChannel input2();
}
}

76
multi-io-samples/multi-io/src/main/java/demo/SampleSource.java
View File

@@ -1,76 +0,0 @@
/*
* Copyright 2016-2018 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package demo;
import org.springframework.cloud.stream.annotation.EnableBinding;
import org.springframework.cloud.stream.annotation.Output;
import org.springframework.context.annotation.Bean;
import org.springframework.integration.annotation.InboundChannelAdapter;
import org.springframework.integration.annotation.Poller;
import org.springframework.integration.core.MessageSource;
import org.springframework.messaging.Message;
import org.springframework.messaging.MessageChannel;
import org.springframework.messaging.support.GenericMessage;
/**
* @author Ilayaperumal Gopinathan
*/
@EnableBinding(SampleSource.MultiOutputSource.class)
public class SampleSource {
@Bean
@InboundChannelAdapter(value = MultiOutputSource.OUTPUT1, poller = @Poller(fixedDelay = "1000", maxMessagesPerPoll = "1"))
public synchronized MessageSource<String> messageSource1() {
return new MessageSource<String>() {
public Message<String> receive() {
String message = "FromSource1";
System.out.println("******************");
System.out.println("From Source1");
System.out.println("******************");
System.out.println("Sending value: " + message);
return new GenericMessage(message);
}
};
}
@Bean
@InboundChannelAdapter(value = MultiOutputSource.OUTPUT2, poller = @Poller(fixedDelay = "1000", maxMessagesPerPoll = "1"))
public synchronized MessageSource<String> timerMessageSource() {
return new MessageSource<String>() {
public Message<String> receive() {
String message = "FromSource2";
System.out.println("******************");
System.out.println("From Source2");
System.out.println("******************");
System.out.println("Sending value: " + message);
return new GenericMessage(message);
}
};
}
public interface MultiOutputSource {
String OUTPUT1 = "output1";
String OUTPUT2 = "output2";
@Output(OUTPUT1)
MessageChannel output1();
@Output(OUTPUT2)
MessageChannel output2();
}
}

2
pom.xml
View File

@@ -23,7 +23,7 @@
<module>source-samples</module> <module>source-samples</module>
<module>processor-samples</module> <module>processor-samples</module>
<module>kafka-streams-samples</module> <module>kafka-streams-samples</module>
<module>multi-io-samples</module> <module>multi-functions-samples</module>
<module>kinesis-samples</module> <module>kinesis-samples</module>
<module>multibinder-samples</module> <module>multibinder-samples</module>
<module>schema-registry-samples</module> <module>schema-registry-samples</module>