Refactor reactive processor sample application
This commit is contained in:
Soby Chacko
0
processor-samples/reactive-processor-rabbit/.jdk8
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0
processor-samples/reactive-processor-rabbit/.jdk8
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1
processor-samples/reactive-processor-rabbit/.mvn
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processor-samples/reactive-processor-rabbit/.mvn
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../../.mvn
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52
processor-samples/reactive-processor-rabbit/README.adoc
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52
processor-samples/reactive-processor-rabbit/README.adoc
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Spring Cloud Stream Reactive Processor Basic Sample
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==================================================
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This is a Spring Cloud Stream reactive processor sample.
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## Requirements
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To run this sample, you will need to have installed:
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* Java 8 or Above
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## Running the application
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The following instructions assume that you are running Kafka as a Docker image.
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* Go to the application root (not the repository root, but this application)
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* `docker-compose up -d`
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* `./mvnw clean package`
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* `java -jar target/reactive-processor-0.0.1-SNAPSHOT-kafka.jar`
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The main application contains the reactive processor that receives textual data for a duration and aggregates them.
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It then sends the aggregated data through the outbound destination of the processor.
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The application also provides a source and sink for testing.
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Test source will generate some text every second and the test sink will verify that the processor has accumulated the text over a duration.
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Test source is bound to the same broker destination where the processor is listening from.
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Similarly test sink is bound to the same broker destination where the processor is producing to.
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You will see output similar to the following on the console every 5 seconds.
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```
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Data received: foobarfoobarfoo
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Data received: barfoobarfoobar
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Data received: foobarfoobarfoo
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Data received: foobarfoobarfoo
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```
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* `docker-compose down`
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## Running the application using Rabbit binder
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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.
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* `docker-compose -f docker-compose-rabbit.yml up -d`
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* `./mvnw clean package -P rabbit-binder`
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* `java -jar target/reactive-processor-0.0.1-SNAPSHOT-rabbit.jar`
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Once you are done testing: `docker-compose -f docker-compose-rabbit.yml down`
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@@ -0,0 +1,7 @@
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version: '3'
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services:
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rabbitmq:
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image: rabbitmq:management
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ports:
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- 5672:5672
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- 15672:15672
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226
processor-samples/reactive-processor-rabbit/mvnw
vendored
Executable file
226
processor-samples/reactive-processor-rabbit/mvnw
vendored
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#!/bin/sh
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# ----------------------------------------------------------------------------
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# Licensed to the Apache Software Foundation (ASF) under one
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# 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
|
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#
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# https://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing,
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# 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.
|
||||
# ----------------------------------------------------------------------------
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|
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# ----------------------------------------------------------------------------
|
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# Maven2 Start Up Batch script
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#
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# Required ENV vars:
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# ------------------
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# JAVA_HOME - location of a JDK home dir
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#
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# Optional ENV vars
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# -----------------
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# M2_HOME - location of maven2's installed home dir
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# MAVEN_OPTS - parameters passed to the Java VM when running Maven
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# e.g. to debug Maven itself, use
|
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# set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000
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# MAVEN_SKIP_RC - flag to disable loading of mavenrc files
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# ----------------------------------------------------------------------------
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if [ -z "$MAVEN_SKIP_RC" ] ; then
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if [ -f /etc/mavenrc ] ; then
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. /etc/mavenrc
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fi
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if [ -f "$HOME/.mavenrc" ] ; then
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. "$HOME/.mavenrc"
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fi
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|
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fi
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# OS specific support. $var _must_ be set to either true or false.
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cygwin=false;
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darwin=false;
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mingw=false
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case "`uname`" in
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CYGWIN*) cygwin=true ;;
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MINGW*) mingw=true;;
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Darwin*) darwin=true
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# Use /usr/libexec/java_home if available, otherwise fall back to /Library/Java/Home
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# See https://developer.apple.com/library/mac/qa/qa1170/_index.html
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if [ -z "$JAVA_HOME" ]; then
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if [ -x "/usr/libexec/java_home" ]; then
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export JAVA_HOME="`/usr/libexec/java_home`"
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else
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export JAVA_HOME="/Library/Java/Home"
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fi
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fi
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;;
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esac
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if [ -z "$JAVA_HOME" ] ; then
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if [ -r /etc/gentoo-release ] ; then
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JAVA_HOME=`java-config --jre-home`
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fi
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fi
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if [ -z "$M2_HOME" ] ; then
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## resolve links - $0 may be a link to maven's home
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PRG="$0"
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# need this for relative symlinks
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while [ -h "$PRG" ] ; do
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ls=`ls -ld "$PRG"`
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link=`expr "$ls" : '.*-> \(.*\)$'`
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if expr "$link" : '/.*' > /dev/null; then
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PRG="$link"
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else
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PRG="`dirname "$PRG"`/$link"
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fi
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done
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saveddir=`pwd`
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M2_HOME=`dirname "$PRG"`/..
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# make it fully qualified
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M2_HOME=`cd "$M2_HOME" && pwd`
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cd "$saveddir"
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# echo Using m2 at $M2_HOME
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fi
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|
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# For Cygwin, ensure paths are in UNIX format before anything is touched
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if $cygwin ; then
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[ -n "$M2_HOME" ] &&
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M2_HOME=`cygpath --unix "$M2_HOME"`
|
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[ -n "$JAVA_HOME" ] &&
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JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
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[ -n "$CLASSPATH" ] &&
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CLASSPATH=`cygpath --path --unix "$CLASSPATH"`
|
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fi
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|
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# For Migwn, ensure paths are in UNIX format before anything is touched
|
||||
if $mingw ; then
|
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[ -n "$M2_HOME" ] &&
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M2_HOME="`(cd "$M2_HOME"; pwd)`"
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[ -n "$JAVA_HOME" ] &&
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JAVA_HOME="`(cd "$JAVA_HOME"; pwd)`"
|
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# TODO classpath?
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fi
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if [ -z "$JAVA_HOME" ]; then
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javaExecutable="`which javac`"
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if [ -n "$javaExecutable" ] && ! [ "`expr \"$javaExecutable\" : '\([^ ]*\)'`" = "no" ]; then
|
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# readlink(1) is not available as standard on Solaris 10.
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readLink=`which readlink`
|
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if [ ! `expr "$readLink" : '\([^ ]*\)'` = "no" ]; then
|
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if $darwin ; then
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javaHome="`dirname \"$javaExecutable\"`"
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javaExecutable="`cd \"$javaHome\" && pwd -P`/javac"
|
||||
else
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javaExecutable="`readlink -f \"$javaExecutable\"`"
|
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fi
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javaHome="`dirname \"$javaExecutable\"`"
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javaHome=`expr "$javaHome" : '\(.*\)/bin'`
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JAVA_HOME="$javaHome"
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export JAVA_HOME
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fi
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fi
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fi
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|
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if [ -z "$JAVACMD" ] ; then
|
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if [ -n "$JAVA_HOME" ] ; then
|
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if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
|
||||
# IBM's JDK on AIX uses strange locations for the executables
|
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JAVACMD="$JAVA_HOME/jre/sh/java"
|
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else
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JAVACMD="$JAVA_HOME/bin/java"
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fi
|
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else
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JAVACMD="`which java`"
|
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fi
|
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fi
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|
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if [ ! -x "$JAVACMD" ] ; then
|
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echo "Error: JAVA_HOME is not defined correctly." >&2
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echo " We cannot execute $JAVACMD" >&2
|
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exit 1
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fi
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|
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if [ -z "$JAVA_HOME" ] ; then
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echo "Warning: JAVA_HOME environment variable is not set."
|
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fi
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CLASSWORLDS_LAUNCHER=org.codehaus.plexus.classworlds.launcher.Launcher
|
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|
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# traverses directory structure from process work directory to filesystem root
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# first directory with .mvn subdirectory is considered project base directory
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find_maven_basedir() {
|
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|
||||
if [ -z "$1" ]
|
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then
|
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echo "Path not specified to find_maven_basedir"
|
||||
return 1
|
||||
fi
|
||||
|
||||
basedir="$1"
|
||||
wdir="$1"
|
||||
while [ "$wdir" != '/' ] ; do
|
||||
if [ -d "$wdir"/.mvn ] ; then
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basedir=$wdir
|
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break
|
||||
fi
|
||||
# workaround for JBEAP-8937 (on Solaris 10/Sparc)
|
||||
if [ -d "${wdir}" ]; then
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wdir=`cd "$wdir/.."; pwd`
|
||||
fi
|
||||
# end of workaround
|
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done
|
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echo "${basedir}"
|
||||
}
|
||||
|
||||
# concatenates all lines of a file
|
||||
concat_lines() {
|
||||
if [ -f "$1" ]; then
|
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echo "$(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 $MAVEN_PROJECTBASEDIR
|
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MAVEN_OPTS="$(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
processor-samples/reactive-processor-rabbit/mvnw.cmd
vendored
Normal file
145
processor-samples/reactive-processor-rabbit/mvnw.cmd
vendored
Normal file
@@ -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%
|
||||
119
processor-samples/reactive-processor-rabbit/pom.xml
Normal file
119
processor-samples/reactive-processor-rabbit/pom.xml
Normal file
@@ -0,0 +1,119 @@
|
||||
<?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>reactive-processor</artifactId>
|
||||
<version>0.0.1-SNAPSHOT</version>
|
||||
<packaging>jar</packaging>
|
||||
<name>reactive-processor-kafka</name>
|
||||
<description>Spring Cloud Stream Reactive Processor 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-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>
|
||||
@@ -0,0 +1,62 @@
|
||||
package reactive.kafka;
|
||||
|
||||
import org.apache.commons.logging.Log;
|
||||
import org.apache.commons.logging.LogFactory;
|
||||
import org.springframework.boot.SpringApplication;
|
||||
import org.springframework.boot.autoconfigure.SpringBootApplication;
|
||||
import org.springframework.cloud.stream.annotation.EnableBinding;
|
||||
import org.springframework.cloud.stream.annotation.Input;
|
||||
import org.springframework.cloud.stream.annotation.Output;
|
||||
import org.springframework.cloud.stream.annotation.StreamListener;
|
||||
import org.springframework.cloud.stream.messaging.Processor;
|
||||
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.MessageChannel;
|
||||
import org.springframework.messaging.SubscribableChannel;
|
||||
import org.springframework.messaging.support.GenericMessage;
|
||||
import reactor.core.publisher.Flux;
|
||||
|
||||
import java.time.Duration;
|
||||
import java.util.concurrent.atomic.AtomicBoolean;
|
||||
import java.util.function.Consumer;
|
||||
import java.util.function.Function;
|
||||
import java.util.function.Supplier;
|
||||
|
||||
@SpringBootApplication
|
||||
public class ReactiveProcessorApplication {
|
||||
|
||||
private final Log logger = LogFactory.getLog(getClass());
|
||||
|
||||
private AtomicBoolean semaphore = new AtomicBoolean(true);
|
||||
|
||||
public static void main(String[] args) {
|
||||
SpringApplication.run(ReactiveProcessorApplication.class, args);
|
||||
}
|
||||
|
||||
@Bean
|
||||
public Function<Flux<String>, Flux<String>> aggregate() {
|
||||
return inbound -> inbound.
|
||||
log()
|
||||
.window(Duration.ofSeconds(30), Duration.ofSeconds(5))
|
||||
.flatMap(w -> w.reduce("", (s1,s2)->s1+s2))
|
||||
.log();
|
||||
}
|
||||
|
||||
//Following source and sinks are used for testing only.
|
||||
//Test source will send data to the same destination where the processor receives data
|
||||
//Test sink will consume data from the same destination where the processor produces data
|
||||
|
||||
@Bean
|
||||
public Supplier<String> testSource() {
|
||||
return () -> this.semaphore.getAndSet(!this.semaphore.get()) ? "foo" : "bar";
|
||||
|
||||
}
|
||||
|
||||
@Bean
|
||||
public Consumer<String> testSink() {
|
||||
return payload -> logger.info("Data received: " + payload);
|
||||
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,13 @@
|
||||
spring:
|
||||
cloud:
|
||||
stream:
|
||||
function.definition: aggregate;testSource;testSink
|
||||
bindings:
|
||||
aggregate-out-0:
|
||||
destination: transformed
|
||||
testSink-in-0:
|
||||
destination: transformed
|
||||
aggregate-in-0:
|
||||
destination: testtock
|
||||
testSource-out-0:
|
||||
destination: testtock
|
||||
Reference in New Issue
Block a user