diff --git a/dynamic-destination-source/.mvn b/dynamic-destination-source/.mvn new file mode 120000 index 0000000..19172e1 --- /dev/null +++ b/dynamic-destination-source/.mvn @@ -0,0 +1 @@ +../.mvn \ No newline at end of file diff --git a/dynamic-destination-source/README.adoc b/dynamic-destination-source/README.adoc new file mode 100644 index 0000000..5ad62cf --- /dev/null +++ b/dynamic-destination-source/README.adoc @@ -0,0 +1,37 @@ +Spring Cloud Stream Source with Dynamic Destinations +==================================================== + +In this *Spring Cloud Stream* sample, a source application publishes messages to dynamically created destinations. + +## Requirements + +To run this sample, you will need to have installed: + +* Java 8 or Above + +## Code Tour + +The class `SourceWithDynamicDestination` is a REST controller that registers the 'POST' request mapping for '/'. +When a payload is sent to 'http://localhost:8080/' by a POST request (port 8080 is the default), this application uses a router that is SpEL based which usea a `BinderAwareChannelResolver` to resolve the destination dynamically at runtime. +Currently, this router uses `payload.id` as the SpEL expression for its resolver to resolve the destination name. + +## 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/dynamic-destination-source-0.0.1-SNAPSHOT.jar` + +Upon starting the application on the default port 8080, if the following data are sent: + +curl -H "Content-Type: application/json" -X POST -d '{"id":"customerId-1","bill-pay":"100"}' http://localhost:8080 + +curl -H "Content-Type: application/json" -X POST -d '{"id":"customerId-2","bill-pay":"150"}' http://localhost:8080 + +The destinations 'customerId-1' and 'customerId-2' are created at the broker (for example: topic in case of Kafka (exchange in case of Rabbit) with the names 'customerId-1' and 'customerId-2') and the data are published to the appropriate destinations dynamically. + +Do the above HTTP post a few times and watch the output appear on the corresponding dynamically created topics. diff --git a/dynamic-destination-source/docker-compose.yml b/dynamic-destination-source/docker-compose.yml new file mode 100644 index 0000000..d47d783 --- /dev/null +++ b/dynamic-destination-source/docker-compose.yml @@ -0,0 +1,18 @@ +version: '2' +services: + kafka: + image: wurstmeister/kafka + ports: + - "9092:9092" + environment: + - KAFKA_ADVERTISED_HOST_NAME=127.0.0.1 + - KAFKA_ADVERTISED_PORT=9092 + - KAFKA_ZOOKEEPER_CONNECT=zookeeper:2181 + depends_on: + - zookeeper + zookeeper: + image: wurstmeister/zookeeper + ports: + - "2181:2181" + environment: + - KAFKA_ADVERTISED_HOST_NAME=zookeeper \ No newline at end of file diff --git a/dynamic-destination-source/mvnw b/dynamic-destination-source/mvnw new file mode 100755 index 0000000..6efc7bd --- /dev/null +++ b/dynamic-destination-source/mvnw @@ -0,0 +1,226 @@ +#!/bin/sh +# ---------------------------------------------------------------------------- +# Licensed to the Apache Software Foundation (ASF) under one +# or more contributor license agreements. See the NOTICE file +# distributed with this work for additional information +# regarding copyright ownership. The ASF licenses this file +# to you under the Apache License, Version 2.0 (the +# "License"); you may not use this file except in compliance +# with the License. You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, +# software distributed under the License is distributed on an +# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +# KIND, either express or implied. See the License for the +# specific language governing permissions and limitations +# under the License. +# ---------------------------------------------------------------------------- + +# ---------------------------------------------------------------------------- +# Maven2 Start Up Batch script +# +# Required ENV vars: +# ------------------ +# JAVA_HOME - location of a JDK home dir +# +# Optional ENV vars +# ----------------- +# M2_HOME - location of maven2's installed home dir +# MAVEN_OPTS - parameters passed to the Java VM when running Maven +# e.g. to debug Maven itself, use +# set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000 +# MAVEN_SKIP_RC - flag to disable loading of mavenrc files +# ---------------------------------------------------------------------------- + +if [ -z "$MAVEN_SKIP_RC" ] ; then + + if [ -f /etc/mavenrc ] ; then + . /etc/mavenrc + fi + + if [ -f "$HOME/.mavenrc" ] ; then + . "$HOME/.mavenrc" + fi + +fi + +# OS specific support. $var _must_ be set to either true or false. +cygwin=false; +darwin=false; +mingw=false +case "`uname`" in + CYGWIN*) cygwin=true ;; + MINGW*) mingw=true;; + Darwin*) darwin=true + # Use /usr/libexec/java_home if available, otherwise fall back to /Library/Java/Home + # See https://developer.apple.com/library/mac/qa/qa1170/_index.html + if [ -z "$JAVA_HOME" ]; then + if [ -x "/usr/libexec/java_home" ]; then + export JAVA_HOME="`/usr/libexec/java_home`" + else + export JAVA_HOME="/Library/Java/Home" + fi + fi + ;; +esac + +if [ -z "$JAVA_HOME" ] ; then + if [ -r /etc/gentoo-release ] ; then + JAVA_HOME=`java-config --jre-home` + fi +fi + +if [ -z "$M2_HOME" ] ; then + ## resolve links - $0 may be a link to maven's home + PRG="$0" + + # need this for relative symlinks + while [ -h "$PRG" ] ; do + ls=`ls -ld "$PRG"` + link=`expr "$ls" : '.*-> \(.*\)$'` + if expr "$link" : '/.*' > /dev/null; then + PRG="$link" + else + PRG="`dirname "$PRG"`/$link" + fi + done + + saveddir=`pwd` + + M2_HOME=`dirname "$PRG"`/.. + + # make it fully qualified + M2_HOME=`cd "$M2_HOME" && pwd` + + cd "$saveddir" + # echo Using m2 at $M2_HOME +fi + +# For Cygwin, ensure paths are in UNIX format before anything is touched +if $cygwin ; then + [ -n "$M2_HOME" ] && + M2_HOME=`cygpath --unix "$M2_HOME"` + [ -n "$JAVA_HOME" ] && + JAVA_HOME=`cygpath --unix "$JAVA_HOME"` + [ -n "$CLASSPATH" ] && + CLASSPATH=`cygpath --path --unix "$CLASSPATH"` +fi + +# For Migwn, ensure paths are in UNIX format before anything is touched +if $mingw ; then + [ -n "$M2_HOME" ] && + M2_HOME="`(cd "$M2_HOME"; pwd)`" + [ -n "$JAVA_HOME" ] && + JAVA_HOME="`(cd "$JAVA_HOME"; pwd)`" + # TODO classpath? +fi + +if [ -z "$JAVA_HOME" ]; then + javaExecutable="`which javac`" + if [ -n "$javaExecutable" ] && ! [ "`expr \"$javaExecutable\" : '\([^ ]*\)'`" = "no" ]; then + # readlink(1) is not available as standard on Solaris 10. + readLink=`which readlink` + if [ ! `expr "$readLink" : '\([^ ]*\)'` = "no" ]; then + if $darwin ; then + javaHome="`dirname \"$javaExecutable\"`" + javaExecutable="`cd \"$javaHome\" && pwd -P`/javac" + else + javaExecutable="`readlink -f \"$javaExecutable\"`" + fi + javaHome="`dirname \"$javaExecutable\"`" + javaHome=`expr "$javaHome" : '\(.*\)/bin'` + JAVA_HOME="$javaHome" + export JAVA_HOME + fi + fi +fi + +if [ -z "$JAVACMD" ] ; then + if [ -n "$JAVA_HOME" ] ; then + if [ -x "$JAVA_HOME/jre/sh/java" ] ; then + # IBM's JDK on AIX uses strange locations for the executables + JAVACMD="$JAVA_HOME/jre/sh/java" + else + JAVACMD="$JAVA_HOME/bin/java" + fi + else + JAVACMD="`which java`" + fi +fi + +if [ ! -x "$JAVACMD" ] ; then + echo "Error: JAVA_HOME is not defined correctly." >&2 + echo " We cannot execute $JAVACMD" >&2 + exit 1 +fi + +if [ -z "$JAVA_HOME" ] ; then + echo "Warning: JAVA_HOME environment variable is not set." +fi + +CLASSWORLDS_LAUNCHER=org.codehaus.plexus.classworlds.launcher.Launcher + +# traverses directory structure from process work directory to filesystem root +# first directory with .mvn subdirectory is considered project base directory +find_maven_basedir() { + + if [ -z "$1" ] + then + echo "Path not specified to find_maven_basedir" + return 1 + fi + + basedir="$1" + wdir="$1" + while [ "$wdir" != '/' ] ; do + if [ -d "$wdir"/.mvn ] ; then + basedir=$wdir + break + fi + # workaround for JBEAP-8937 (on Solaris 10/Sparc) + if [ -d "${wdir}" ]; then + wdir=`cd "$wdir/.."; pwd` + fi + # end of workaround + done + echo "${basedir}" +} + +# concatenates all lines of a file +concat_lines() { + if [ -f "$1" ]; then + echo "$(tr -s '\n' ' ' < "$1")" + fi +} + +BASE_DIR=`find_maven_basedir "$(pwd)"` +if [ -z "$BASE_DIR" ]; then + exit 1; +fi + +export MAVEN_PROJECTBASEDIR=${MAVEN_BASEDIR:-"$BASE_DIR"} +echo $MAVEN_PROJECTBASEDIR +MAVEN_OPTS="$(concat_lines "$MAVEN_PROJECTBASEDIR/.mvn/jvm.config") $MAVEN_OPTS" + +# For Cygwin, switch paths to Windows format before running java +if $cygwin; then + [ -n "$M2_HOME" ] && + M2_HOME=`cygpath --path --windows "$M2_HOME"` + [ -n "$JAVA_HOME" ] && + JAVA_HOME=`cygpath --path --windows "$JAVA_HOME"` + [ -n "$CLASSPATH" ] && + CLASSPATH=`cygpath --path --windows "$CLASSPATH"` + [ -n "$MAVEN_PROJECTBASEDIR" ] && + MAVEN_PROJECTBASEDIR=`cygpath --path --windows "$MAVEN_PROJECTBASEDIR"` +fi + +WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain + +"$JAVACMD" \ + $MAVEN_OPTS \ + -classpath "$MAVEN_PROJECTBASEDIR/.mvn/wrapper/maven-wrapper.jar" \ + "-Dmaven.home=${M2_HOME}" "-Dmaven.multiModuleProjectDirectory=${MAVEN_PROJECTBASEDIR}" \ + ${WRAPPER_LAUNCHER} $MAVEN_CONFIG "$@" + diff --git a/dynamic-destination-source/mvnw.cmd b/dynamic-destination-source/mvnw.cmd new file mode 100644 index 0000000..b0dc0e7 --- /dev/null +++ b/dynamic-destination-source/mvnw.cmd @@ -0,0 +1,145 @@ +@REM ---------------------------------------------------------------------------- +@REM Licensed to the Apache Software Foundation (ASF) under one +@REM or more contributor license agreements. See the NOTICE file +@REM distributed with this work for additional information +@REM regarding copyright ownership. The ASF licenses this file +@REM to you under the Apache License, Version 2.0 (the +@REM "License"); you may not use this file except in compliance +@REM with the License. You may obtain a copy of the License at +@REM +@REM http://www.apache.org/licenses/LICENSE-2.0 +@REM +@REM Unless required by applicable law or agreed to in writing, +@REM software distributed under the License is distributed on an +@REM "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +@REM KIND, either express or implied. See the License for the +@REM specific language governing permissions and limitations +@REM under the License. +@REM ---------------------------------------------------------------------------- + +@REM ---------------------------------------------------------------------------- +@REM Maven2 Start Up Batch script +@REM +@REM Required ENV vars: +@REM JAVA_HOME - location of a JDK home dir +@REM +@REM Optional ENV vars +@REM M2_HOME - location of maven2's installed home dir +@REM MAVEN_BATCH_ECHO - set to 'on' to enable the echoing of the batch commands +@REM MAVEN_BATCH_PAUSE - set to 'on' to wait for a key stroke before ending +@REM MAVEN_OPTS - parameters passed to the Java VM when running Maven +@REM e.g. to debug Maven itself, use +@REM set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000 +@REM MAVEN_SKIP_RC - flag to disable loading of mavenrc files +@REM ---------------------------------------------------------------------------- + +@REM Begin all REM lines with '@' in case MAVEN_BATCH_ECHO is 'on' +@echo off +@REM enable echoing my setting MAVEN_BATCH_ECHO to 'on' +@if "%MAVEN_BATCH_ECHO%" == "on" echo %MAVEN_BATCH_ECHO% + +@REM set %HOME% to equivalent of $HOME +if "%HOME%" == "" (set "HOME=%HOMEDRIVE%%HOMEPATH%") + +@REM Execute a user defined script before this one +if not "%MAVEN_SKIP_RC%" == "" goto skipRcPre +@REM check for pre script, once with legacy .bat ending and once with .cmd ending +if exist "%HOME%\mavenrc_pre.bat" call "%HOME%\mavenrc_pre.bat" +if exist "%HOME%\mavenrc_pre.cmd" call "%HOME%\mavenrc_pre.cmd" +:skipRcPre + +@setlocal + +set ERROR_CODE=0 + +@REM To isolate internal variables from possible post scripts, we use another setlocal +@setlocal + +@REM ==== START VALIDATION ==== +if not "%JAVA_HOME%" == "" goto OkJHome + +echo. +echo Error: JAVA_HOME not found in your environment. >&2 +echo Please set the JAVA_HOME variable in your environment to match the >&2 +echo location of your Java installation. >&2 +echo. +goto error + +:OkJHome +if exist "%JAVA_HOME%\bin\java.exe" goto init + +echo. +echo Error: JAVA_HOME is set to an invalid directory. >&2 +echo JAVA_HOME = "%JAVA_HOME%" >&2 +echo Please set the JAVA_HOME variable in your environment to match the >&2 +echo location of your Java installation. >&2 +echo. +goto error + +@REM ==== END VALIDATION ==== + +:init + +set MAVEN_CMD_LINE_ARGS=%* + +@REM Find the project base dir, i.e. the directory that contains the folder ".mvn". +@REM Fallback to current working directory if not found. + +set MAVEN_PROJECTBASEDIR=%MAVEN_BASEDIR% +IF NOT "%MAVEN_PROJECTBASEDIR%"=="" goto endDetectBaseDir + +set EXEC_DIR=%CD% +set WDIR=%EXEC_DIR% +:findBaseDir +IF EXIST "%WDIR%"\.mvn goto baseDirFound +cd .. +IF "%WDIR%"=="%CD%" goto baseDirNotFound +set WDIR=%CD% +goto findBaseDir + +:baseDirFound +set MAVEN_PROJECTBASEDIR=%WDIR% +cd "%EXEC_DIR%" +goto endDetectBaseDir + +:baseDirNotFound +set MAVEN_PROJECTBASEDIR=%EXEC_DIR% +cd "%EXEC_DIR%" + +:endDetectBaseDir + +IF NOT EXIST "%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config" goto endReadAdditionalConfig + +@setlocal EnableExtensions EnableDelayedExpansion +for /F "usebackq delims=" %%a in ("%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config") do set JVM_CONFIG_MAVEN_PROPS=!JVM_CONFIG_MAVEN_PROPS! %%a +@endlocal & set JVM_CONFIG_MAVEN_PROPS=%JVM_CONFIG_MAVEN_PROPS% + +:endReadAdditionalConfig + +SET MAVEN_JAVA_EXE="%JAVA_HOME%\bin\java.exe" + +set WRAPPER_JAR="".\.mvn\wrapper\maven-wrapper.jar"" +set WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain + +%MAVEN_JAVA_EXE% %JVM_CONFIG_MAVEN_PROPS% %MAVEN_OPTS% %MAVEN_DEBUG_OPTS% -classpath %WRAPPER_JAR% "-Dmaven.multiModuleProjectDirectory=%MAVEN_PROJECTBASEDIR%" %WRAPPER_LAUNCHER% %MAVEN_CMD_LINE_ARGS% +if ERRORLEVEL 1 goto error +goto end + +:error +set ERROR_CODE=1 + +:end +@endlocal & set ERROR_CODE=%ERROR_CODE% + +if not "%MAVEN_SKIP_RC%" == "" goto skipRcPost +@REM check for post script, once with legacy .bat ending and once with .cmd ending +if exist "%HOME%\mavenrc_post.bat" call "%HOME%\mavenrc_post.bat" +if exist "%HOME%\mavenrc_post.cmd" call "%HOME%\mavenrc_post.cmd" +:skipRcPost + +@REM pause the script if MAVEN_BATCH_PAUSE is set to 'on' +if "%MAVEN_BATCH_PAUSE%" == "on" pause + +if "%MAVEN_TERMINATE_CMD%" == "on" exit %ERROR_CODE% + +exit /B %ERROR_CODE% diff --git a/dynamic-destination-source/pom.xml b/dynamic-destination-source/pom.xml new file mode 100644 index 0000000..06302de --- /dev/null +++ b/dynamic-destination-source/pom.xml @@ -0,0 +1,94 @@ + + + 4.0.0 + + spring.cloud.stream.samples + dynamic-destination-source + 0.0.1-SNAPSHOT + jar + + dynamic-destination-source + Demo project for Spring Boot + + + org.springframework.boot + spring-boot-starter-parent + 2.0.0.BUILD-SNAPSHOT + + + + + UTF-8 + UTF-8 + 1.8 + Finchley.BUILD-SNAPSHOT + + + + + org.springframework.boot + spring-boot-starter-actuator + + + org.springframework.boot + spring-boot-starter + + + org.springframework.cloud + spring-cloud-stream-binder-kafka + + + org.springframework.boot + spring-boot-starter-web + + + org.springframework.boot + spring-boot-starter-test + test + + + + + + + org.springframework.cloud + spring-cloud-dependencies + ${spring-cloud.version} + pom + import + + + + + + + + org.springframework.boot + spring-boot-maven-plugin + + + + + + + spring-snapshots + Spring Snapshots + http://repo.spring.io/libs-snapshot-local + + true + + + false + + + + spring-milestones + Spring Milestones + http://repo.spring.io/libs-milestone-local + + false + + + + + diff --git a/dynamic-source/src/main/java/demo/SourceApplication.java b/dynamic-destination-source/src/main/java/demo/SourceApplication.java similarity index 100% rename from dynamic-source/src/main/java/demo/SourceApplication.java rename to dynamic-destination-source/src/main/java/demo/SourceApplication.java diff --git a/dynamic-source/src/main/java/demo/SourceWithDynamicDestination.java b/dynamic-destination-source/src/main/java/demo/SourceWithDynamicDestination.java similarity index 89% rename from dynamic-source/src/main/java/demo/SourceWithDynamicDestination.java rename to dynamic-destination-source/src/main/java/demo/SourceWithDynamicDestination.java index c29691a..ed74b72 100644 --- a/dynamic-source/src/main/java/demo/SourceWithDynamicDestination.java +++ b/dynamic-destination-source/src/main/java/demo/SourceWithDynamicDestination.java @@ -16,25 +16,17 @@ package demo; -import java.util.Collections; - import org.springframework.beans.factory.annotation.Autowired; import org.springframework.beans.factory.annotation.Qualifier; import org.springframework.cloud.stream.annotation.EnableBinding; import org.springframework.cloud.stream.binding.BinderAwareChannelResolver; import org.springframework.context.annotation.Bean; -import org.springframework.expression.Expression; -import org.springframework.expression.common.LiteralExpression; import org.springframework.expression.spel.standard.SpelExpressionParser; import org.springframework.http.HttpHeaders; import org.springframework.http.HttpStatus; import org.springframework.integration.annotation.ServiceActivator; import org.springframework.integration.channel.DirectChannel; -import org.springframework.integration.dsl.support.Function; -import org.springframework.integration.dsl.support.FunctionExpression; -import org.springframework.integration.router.AbstractMappingMessageRouter; import org.springframework.integration.router.ExpressionEvaluatingRouter; -import org.springframework.messaging.Message; import org.springframework.messaging.MessageChannel; import org.springframework.messaging.MessageHeaders; import org.springframework.messaging.support.MessageBuilder; @@ -44,6 +36,8 @@ import org.springframework.web.bind.annotation.RequestHeader; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.ResponseStatus; +import java.util.Collections; + import static org.springframework.web.bind.annotation.RequestMethod.POST; /** diff --git a/dynamic-source/src/test/java/demo/ModuleApplicationTests.java b/dynamic-destination-source/src/test/java/demo/ModuleApplicationTests.java similarity index 100% rename from dynamic-source/src/test/java/demo/ModuleApplicationTests.java rename to dynamic-destination-source/src/test/java/demo/ModuleApplicationTests.java diff --git a/dynamic-destination-source/start-kafka-shell.sh b/dynamic-destination-source/start-kafka-shell.sh new file mode 100755 index 0000000..62663e4 --- /dev/null +++ b/dynamic-destination-source/start-kafka-shell.sh @@ -0,0 +1,2 @@ +#!/bin/bash +docker run --rm -v /var/run/docker.sock:/var/run/docker.sock -e HOST_IP=$1 -e ZK=$2 -i -t wurstmeister/kafka /bin/bash diff --git a/dynamic-source/README.md b/dynamic-source/README.md deleted file mode 100644 index 211bc06..0000000 --- a/dynamic-source/README.md +++ /dev/null @@ -1,43 +0,0 @@ -Spring Cloud Stream Source Sample -============================= - -In this *Spring Cloud Stream* sample, a source application publishes messages to dynamically created destinations. - -## Requirements - -To run this sample, you will need to have installed: - -* Java 8 or Above - -This example requires RabbitMQ to be running on localhost. - -## Code Tour - -The class `SourceWithDynamicDestination` is a REST controller that registers the 'POST' request mapping for '/'. -When a payload is sent to 'http://localhost:8080/' by a POST request (port 8080 is the default), this application -then uses `BinderAwareChannelResolver` to resolve the destination dynamically at runtime. Currently, this resolver uses -`payload` as the SpEL expression to resolve the destination name. Hence, if a payload `testing` is sent to the app, then -this source application sends the message `testing` into the Rabbit exchange `testing`. This exchange or topic (in case -of Kafka if Kafka binder is used) is created dynamically and bound to send the payload. - - -Upon starting the application on the default port 8080, if the following data are sent: - -curl -H "Content-Type: application/json" -X POST -d '{"id":"customerId-1","bill-pay":"100"}' http://localhost:8080 - -curl -H "Content-Type: application/json" -X POST -d '{"id":"customerId-2","bill-pay":"150"}' http://localhost:8080 - -The destinations 'customerId-1' and 'customerId-2' are created at the broker (for example: exchange in case of Rabbit or topic in case of Kafka with the names 'customerId-1' and 'customerId-2') and the data are published to the appropriate destinations dynamically. - -## Building with Maven - -Build the sample by executing: - - source>$ mvn clean package - -## Running the Sample - -To start the source module execute the following: - - source>$ java -jar target/spring-cloud-stream-sample-dynamic-source-1.1.0.BUILD-SNAPSHOT-exec.jar - diff --git a/dynamic-source/pom.xml b/dynamic-source/pom.xml deleted file mode 100644 index 2029c64..0000000 --- a/dynamic-source/pom.xml +++ /dev/null @@ -1,62 +0,0 @@ - - - 4.0.0 - - spring-cloud-stream-sample-dynamic-source - jar - spring-cloud-stream-sample-dynamic-source - Demo project for source module - - - org.springframework.cloud - spring-cloud-stream-samples - 1.2.0.BUILD-SNAPSHOT - - - - demo.SourceApplication - - - - - org.springframework.cloud - spring-cloud-stream - - - org.springframework.cloud - spring-cloud-stream-codec - - - org.springframework.integration - spring-integration-java-dsl - 1.2.1.RELEASE - - - org.springframework.cloud - spring-cloud-stream-binder-rabbit - - - org.springframework.boot - spring-boot-configuration-processor - true - - - org.springframework.boot - spring-boot-starter-test - test - - - - - - - org.springframework.boot - spring-boot-maven-plugin - - exec - - - - - - diff --git a/multi-io/.mvn b/multi-io/.mvn new file mode 120000 index 0000000..19172e1 --- /dev/null +++ b/multi-io/.mvn @@ -0,0 +1 @@ +../.mvn \ No newline at end of file diff --git a/multi-io/README.adoc b/multi-io/README.adoc new file mode 100644 index 0000000..5aa1f2b --- /dev/null +++ b/multi-io/README.adoc @@ -0,0 +1,59 @@ +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 + +This example requires Redis to be running on localhost. + +## 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 +``` \ No newline at end of file diff --git a/multi-io/README.md b/multi-io/README.md deleted file mode 100644 index d038901..0000000 --- a/multi-io/README.md +++ /dev/null @@ -1,40 +0,0 @@ -Spring Cloud Stream Stream Listener Sample -============================= - -In this *Spring Cloud Stream* sample, the application shows how to use configure multiple input/output channels inside -a single application. - -## Requirements - -To run this sample, you will need to have installed: - -* Java 8 or Above - -This example requires Redis to be running on localhost. - -## 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 (Rabbit) and the channels output2 and -input2 connect to the same destination (test2) on Rabbit. -For demo purpose, the apps `SampleSource` and `SampleSink` are bundled together. In practice they are separate applications -unless bundled together by the `AggregateApplicationBuilder`. - -## Building with Maven - -Build the sample by executing: - - >$ mvn clean package - -## Running the Sample - -To start the source module execute the following: - - >$ java -jar target/spring-cloud-stream-sample-multi-io-1.0.0.BUILD-SNAPSHOT-exec.jar - diff --git a/multi-io/docker-compose.yml b/multi-io/docker-compose.yml new file mode 100644 index 0000000..d47d783 --- /dev/null +++ b/multi-io/docker-compose.yml @@ -0,0 +1,18 @@ +version: '2' +services: + kafka: + image: wurstmeister/kafka + ports: + - "9092:9092" + environment: + - KAFKA_ADVERTISED_HOST_NAME=127.0.0.1 + - KAFKA_ADVERTISED_PORT=9092 + - KAFKA_ZOOKEEPER_CONNECT=zookeeper:2181 + depends_on: + - zookeeper + zookeeper: + image: wurstmeister/zookeeper + ports: + - "2181:2181" + environment: + - KAFKA_ADVERTISED_HOST_NAME=zookeeper \ No newline at end of file diff --git a/multi-io/mvnw b/multi-io/mvnw new file mode 100755 index 0000000..6efc7bd --- /dev/null +++ b/multi-io/mvnw @@ -0,0 +1,226 @@ +#!/bin/sh +# ---------------------------------------------------------------------------- +# Licensed to the Apache Software Foundation (ASF) under one +# or more contributor license agreements. See the NOTICE file +# distributed with this work for additional information +# regarding copyright ownership. The ASF licenses this file +# to you under the Apache License, Version 2.0 (the +# "License"); you may not use this file except in compliance +# with the License. You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, +# software distributed under the License is distributed on an +# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +# KIND, either express or implied. See the License for the +# specific language governing permissions and limitations +# under the License. +# ---------------------------------------------------------------------------- + +# ---------------------------------------------------------------------------- +# Maven2 Start Up Batch script +# +# Required ENV vars: +# ------------------ +# JAVA_HOME - location of a JDK home dir +# +# Optional ENV vars +# ----------------- +# M2_HOME - location of maven2's installed home dir +# MAVEN_OPTS - parameters passed to the Java VM when running Maven +# e.g. to debug Maven itself, use +# set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000 +# MAVEN_SKIP_RC - flag to disable loading of mavenrc files +# ---------------------------------------------------------------------------- + +if [ -z "$MAVEN_SKIP_RC" ] ; then + + if [ -f /etc/mavenrc ] ; then + . /etc/mavenrc + fi + + if [ -f "$HOME/.mavenrc" ] ; then + . "$HOME/.mavenrc" + fi + +fi + +# OS specific support. $var _must_ be set to either true or false. +cygwin=false; +darwin=false; +mingw=false +case "`uname`" in + CYGWIN*) cygwin=true ;; + MINGW*) mingw=true;; + Darwin*) darwin=true + # Use /usr/libexec/java_home if available, otherwise fall back to /Library/Java/Home + # See https://developer.apple.com/library/mac/qa/qa1170/_index.html + if [ -z "$JAVA_HOME" ]; then + if [ -x "/usr/libexec/java_home" ]; then + export JAVA_HOME="`/usr/libexec/java_home`" + else + export JAVA_HOME="/Library/Java/Home" + fi + fi + ;; +esac + +if [ -z "$JAVA_HOME" ] ; then + if [ -r /etc/gentoo-release ] ; then + JAVA_HOME=`java-config --jre-home` + fi +fi + +if [ -z "$M2_HOME" ] ; then + ## resolve links - $0 may be a link to maven's home + PRG="$0" + + # need this for relative symlinks + while [ -h "$PRG" ] ; do + ls=`ls -ld "$PRG"` + link=`expr "$ls" : '.*-> \(.*\)$'` + if expr "$link" : '/.*' > /dev/null; then + PRG="$link" + else + PRG="`dirname "$PRG"`/$link" + fi + done + + saveddir=`pwd` + + M2_HOME=`dirname "$PRG"`/.. + + # make it fully qualified + M2_HOME=`cd "$M2_HOME" && pwd` + + cd "$saveddir" + # echo Using m2 at $M2_HOME +fi + +# For Cygwin, ensure paths are in UNIX format before anything is touched +if $cygwin ; then + [ -n "$M2_HOME" ] && + M2_HOME=`cygpath --unix "$M2_HOME"` + [ -n "$JAVA_HOME" ] && + JAVA_HOME=`cygpath --unix "$JAVA_HOME"` + [ -n "$CLASSPATH" ] && + CLASSPATH=`cygpath --path --unix "$CLASSPATH"` +fi + +# For Migwn, ensure paths are in UNIX format before anything is touched +if $mingw ; then + [ -n "$M2_HOME" ] && + M2_HOME="`(cd "$M2_HOME"; pwd)`" + [ -n "$JAVA_HOME" ] && + JAVA_HOME="`(cd "$JAVA_HOME"; pwd)`" + # TODO classpath? +fi + +if [ -z "$JAVA_HOME" ]; then + javaExecutable="`which javac`" + if [ -n "$javaExecutable" ] && ! [ "`expr \"$javaExecutable\" : '\([^ ]*\)'`" = "no" ]; then + # readlink(1) is not available as standard on Solaris 10. + readLink=`which readlink` + if [ ! `expr "$readLink" : '\([^ ]*\)'` = "no" ]; then + if $darwin ; then + javaHome="`dirname \"$javaExecutable\"`" + javaExecutable="`cd \"$javaHome\" && pwd -P`/javac" + else + javaExecutable="`readlink -f \"$javaExecutable\"`" + fi + javaHome="`dirname \"$javaExecutable\"`" + javaHome=`expr "$javaHome" : '\(.*\)/bin'` + JAVA_HOME="$javaHome" + export JAVA_HOME + fi + fi +fi + +if [ -z "$JAVACMD" ] ; then + if [ -n "$JAVA_HOME" ] ; then + if [ -x "$JAVA_HOME/jre/sh/java" ] ; then + # IBM's JDK on AIX uses strange locations for the executables + JAVACMD="$JAVA_HOME/jre/sh/java" + else + JAVACMD="$JAVA_HOME/bin/java" + fi + else + JAVACMD="`which java`" + fi +fi + +if [ ! -x "$JAVACMD" ] ; then + echo "Error: JAVA_HOME is not defined correctly." >&2 + echo " We cannot execute $JAVACMD" >&2 + exit 1 +fi + +if [ -z "$JAVA_HOME" ] ; then + echo "Warning: JAVA_HOME environment variable is not set." +fi + +CLASSWORLDS_LAUNCHER=org.codehaus.plexus.classworlds.launcher.Launcher + +# traverses directory structure from process work directory to filesystem root +# first directory with .mvn subdirectory is considered project base directory +find_maven_basedir() { + + if [ -z "$1" ] + then + echo "Path not specified to find_maven_basedir" + return 1 + fi + + basedir="$1" + wdir="$1" + while [ "$wdir" != '/' ] ; do + if [ -d "$wdir"/.mvn ] ; then + basedir=$wdir + break + fi + # workaround for JBEAP-8937 (on Solaris 10/Sparc) + if [ -d "${wdir}" ]; then + wdir=`cd "$wdir/.."; pwd` + fi + # end of workaround + done + echo "${basedir}" +} + +# concatenates all lines of a file +concat_lines() { + if [ -f "$1" ]; then + echo "$(tr -s '\n' ' ' < "$1")" + fi +} + +BASE_DIR=`find_maven_basedir "$(pwd)"` +if [ -z "$BASE_DIR" ]; then + exit 1; +fi + +export MAVEN_PROJECTBASEDIR=${MAVEN_BASEDIR:-"$BASE_DIR"} +echo $MAVEN_PROJECTBASEDIR +MAVEN_OPTS="$(concat_lines "$MAVEN_PROJECTBASEDIR/.mvn/jvm.config") $MAVEN_OPTS" + +# For Cygwin, switch paths to Windows format before running java +if $cygwin; then + [ -n "$M2_HOME" ] && + M2_HOME=`cygpath --path --windows "$M2_HOME"` + [ -n "$JAVA_HOME" ] && + JAVA_HOME=`cygpath --path --windows "$JAVA_HOME"` + [ -n "$CLASSPATH" ] && + CLASSPATH=`cygpath --path --windows "$CLASSPATH"` + [ -n "$MAVEN_PROJECTBASEDIR" ] && + MAVEN_PROJECTBASEDIR=`cygpath --path --windows "$MAVEN_PROJECTBASEDIR"` +fi + +WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain + +"$JAVACMD" \ + $MAVEN_OPTS \ + -classpath "$MAVEN_PROJECTBASEDIR/.mvn/wrapper/maven-wrapper.jar" \ + "-Dmaven.home=${M2_HOME}" "-Dmaven.multiModuleProjectDirectory=${MAVEN_PROJECTBASEDIR}" \ + ${WRAPPER_LAUNCHER} $MAVEN_CONFIG "$@" + diff --git a/multi-io/mvnw.cmd b/multi-io/mvnw.cmd new file mode 100644 index 0000000..b0dc0e7 --- /dev/null +++ b/multi-io/mvnw.cmd @@ -0,0 +1,145 @@ +@REM ---------------------------------------------------------------------------- +@REM Licensed to the Apache Software Foundation (ASF) under one +@REM or more contributor license agreements. See the NOTICE file +@REM distributed with this work for additional information +@REM regarding copyright ownership. The ASF licenses this file +@REM to you under the Apache License, Version 2.0 (the +@REM "License"); you may not use this file except in compliance +@REM with the License. You may obtain a copy of the License at +@REM +@REM http://www.apache.org/licenses/LICENSE-2.0 +@REM +@REM Unless required by applicable law or agreed to in writing, +@REM software distributed under the License is distributed on an +@REM "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +@REM KIND, either express or implied. See the License for the +@REM specific language governing permissions and limitations +@REM under the License. +@REM ---------------------------------------------------------------------------- + +@REM ---------------------------------------------------------------------------- +@REM Maven2 Start Up Batch script +@REM +@REM Required ENV vars: +@REM JAVA_HOME - location of a JDK home dir +@REM +@REM Optional ENV vars +@REM M2_HOME - location of maven2's installed home dir +@REM MAVEN_BATCH_ECHO - set to 'on' to enable the echoing of the batch commands +@REM MAVEN_BATCH_PAUSE - set to 'on' to wait for a key stroke before ending +@REM MAVEN_OPTS - parameters passed to the Java VM when running Maven +@REM e.g. to debug Maven itself, use +@REM set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000 +@REM MAVEN_SKIP_RC - flag to disable loading of mavenrc files +@REM ---------------------------------------------------------------------------- + +@REM Begin all REM lines with '@' in case MAVEN_BATCH_ECHO is 'on' +@echo off +@REM enable echoing my setting MAVEN_BATCH_ECHO to 'on' +@if "%MAVEN_BATCH_ECHO%" == "on" echo %MAVEN_BATCH_ECHO% + +@REM set %HOME% to equivalent of $HOME +if "%HOME%" == "" (set "HOME=%HOMEDRIVE%%HOMEPATH%") + +@REM Execute a user defined script before this one +if not "%MAVEN_SKIP_RC%" == "" goto skipRcPre +@REM check for pre script, once with legacy .bat ending and once with .cmd ending +if exist "%HOME%\mavenrc_pre.bat" call "%HOME%\mavenrc_pre.bat" +if exist "%HOME%\mavenrc_pre.cmd" call "%HOME%\mavenrc_pre.cmd" +:skipRcPre + +@setlocal + +set ERROR_CODE=0 + +@REM To isolate internal variables from possible post scripts, we use another setlocal +@setlocal + +@REM ==== START VALIDATION ==== +if not "%JAVA_HOME%" == "" goto OkJHome + +echo. +echo Error: JAVA_HOME not found in your environment. >&2 +echo Please set the JAVA_HOME variable in your environment to match the >&2 +echo location of your Java installation. >&2 +echo. +goto error + +:OkJHome +if exist "%JAVA_HOME%\bin\java.exe" goto init + +echo. +echo Error: JAVA_HOME is set to an invalid directory. >&2 +echo JAVA_HOME = "%JAVA_HOME%" >&2 +echo Please set the JAVA_HOME variable in your environment to match the >&2 +echo location of your Java installation. >&2 +echo. +goto error + +@REM ==== END VALIDATION ==== + +:init + +set MAVEN_CMD_LINE_ARGS=%* + +@REM Find the project base dir, i.e. the directory that contains the folder ".mvn". +@REM Fallback to current working directory if not found. + +set MAVEN_PROJECTBASEDIR=%MAVEN_BASEDIR% +IF NOT "%MAVEN_PROJECTBASEDIR%"=="" goto endDetectBaseDir + +set EXEC_DIR=%CD% +set WDIR=%EXEC_DIR% +:findBaseDir +IF EXIST "%WDIR%"\.mvn goto baseDirFound +cd .. +IF "%WDIR%"=="%CD%" goto baseDirNotFound +set WDIR=%CD% +goto findBaseDir + +:baseDirFound +set MAVEN_PROJECTBASEDIR=%WDIR% +cd "%EXEC_DIR%" +goto endDetectBaseDir + +:baseDirNotFound +set MAVEN_PROJECTBASEDIR=%EXEC_DIR% +cd "%EXEC_DIR%" + +:endDetectBaseDir + +IF NOT EXIST "%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config" goto endReadAdditionalConfig + +@setlocal EnableExtensions EnableDelayedExpansion +for /F "usebackq delims=" %%a in ("%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config") do set JVM_CONFIG_MAVEN_PROPS=!JVM_CONFIG_MAVEN_PROPS! %%a +@endlocal & set JVM_CONFIG_MAVEN_PROPS=%JVM_CONFIG_MAVEN_PROPS% + +:endReadAdditionalConfig + +SET MAVEN_JAVA_EXE="%JAVA_HOME%\bin\java.exe" + +set WRAPPER_JAR="".\.mvn\wrapper\maven-wrapper.jar"" +set WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain + +%MAVEN_JAVA_EXE% %JVM_CONFIG_MAVEN_PROPS% %MAVEN_OPTS% %MAVEN_DEBUG_OPTS% -classpath %WRAPPER_JAR% "-Dmaven.multiModuleProjectDirectory=%MAVEN_PROJECTBASEDIR%" %WRAPPER_LAUNCHER% %MAVEN_CMD_LINE_ARGS% +if ERRORLEVEL 1 goto error +goto end + +:error +set ERROR_CODE=1 + +:end +@endlocal & set ERROR_CODE=%ERROR_CODE% + +if not "%MAVEN_SKIP_RC%" == "" goto skipRcPost +@REM check for post script, once with legacy .bat ending and once with .cmd ending +if exist "%HOME%\mavenrc_post.bat" call "%HOME%\mavenrc_post.bat" +if exist "%HOME%\mavenrc_post.cmd" call "%HOME%\mavenrc_post.cmd" +:skipRcPost + +@REM pause the script if MAVEN_BATCH_PAUSE is set to 'on' +if "%MAVEN_BATCH_PAUSE%" == "on" pause + +if "%MAVEN_TERMINATE_CMD%" == "on" exit %ERROR_CODE% + +exit /B %ERROR_CODE% diff --git a/multi-io/pom.xml b/multi-io/pom.xml index 33ea0b3..1358257 100644 --- a/multi-io/pom.xml +++ b/multi-io/pom.xml @@ -2,37 +2,41 @@ 4.0.0 - spring-cloud-stream-sample-multi-io + spring.cloud.stream.samples + multi-io + 0.0.1-SNAPSHOT jar - spring-cloud-stream-sample-multi-io - Demo project for multiple input/output channels binding + multi-io + Demo project for Spring Boot - org.springframework.cloud - spring-cloud-stream-samples - 1.2.0.BUILD-SNAPSHOT + org.springframework.boot + spring-boot-starter-parent + 2.0.0.BUILD-SNAPSHOT + - demo.MultipleIOChannelsApplication + UTF-8 + UTF-8 + 1.8 + Finchley.BUILD-SNAPSHOT - org.springframework.cloud - spring-cloud-stream - - - org.springframework.cloud - spring-cloud-stream-binder-rabbit + org.springframework.boot + spring-boot-starter-actuator org.springframework.boot - spring-boot-configuration-processor - true + spring-boot-starter + + + org.springframework.cloud + spring-cloud-stream-binder-kafka - org.springframework.boot spring-boot-starter-test @@ -40,16 +44,46 @@ + + + + org.springframework.cloud + spring-cloud-dependencies + ${spring-cloud.version} + pom + import + + + + org.springframework.boot spring-boot-maven-plugin - - exec - + + + spring-snapshots + Spring Snapshots + http://repo.spring.io/libs-snapshot-local + + true + + + false + + + + spring-milestones + Spring Milestones + http://repo.spring.io/libs-milestone-local + + false + + + diff --git a/multi-io/src/main/java/demo/MultipleIOChannelsApplication.java b/multi-io/src/main/java/demo/MultipleIOChannelsApplication.java index bee0236..6f9a1cb 100644 --- a/multi-io/src/main/java/demo/MultipleIOChannelsApplication.java +++ b/multi-io/src/main/java/demo/MultipleIOChannelsApplication.java @@ -1,5 +1,5 @@ /* - * Copyright 2015 the original author or authors. + * 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. diff --git a/multi-io/src/main/java/demo/SampleSink.java b/multi-io/src/main/java/demo/SampleSink.java index b61b5ee..76300fd 100644 --- a/multi-io/src/main/java/demo/SampleSink.java +++ b/multi-io/src/main/java/demo/SampleSink.java @@ -1,5 +1,5 @@ /* - * Copyright 2015 the original author or authors. + * 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. diff --git a/multi-io/src/main/java/demo/SampleSource.java b/multi-io/src/main/java/demo/SampleSource.java index 238d02e..2f82d93 100644 --- a/multi-io/src/main/java/demo/SampleSource.java +++ b/multi-io/src/main/java/demo/SampleSource.java @@ -1,5 +1,5 @@ /* - * Copyright 2016 the original author or authors. + * 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. diff --git a/multi-io/start-kafka-shell.sh b/multi-io/start-kafka-shell.sh new file mode 100755 index 0000000..62663e4 --- /dev/null +++ b/multi-io/start-kafka-shell.sh @@ -0,0 +1,2 @@ +#!/bin/bash +docker run --rm -v /var/run/docker.sock:/var/run/docker.sock -e HOST_IP=$1 -e ZK=$2 -i -t wurstmeister/kafka /bin/bash diff --git a/pom.xml b/pom.xml index 60d9239..50f3b34 100644 --- a/pom.xml +++ b/pom.xml @@ -29,10 +29,10 @@ uppercase-transformer reactive-processor kafka-streams - - dynamic-source - multibinder-differentsystems multi-io + dynamic-destination-source + + multibinder-differentsystems test-embedded-kafka kinesis-produce-consume testing