Add Data Flow Load Generator Example
The `dataflow-template-load-generator` will be able to create a parameterized amount of task applications and generate a definable amount of task/batch executions.
This commit is contained in:
Gunnar Hillert
22
dataflow-template-load-generator/README.adoc
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22
dataflow-template-load-generator/README.adoc
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= Data Flow Template Load Generator
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This example uses the Spring Cloud Data Flow Template to generator a set of Task- and Batch Executions.
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This examples, will:
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- Import https://cloud.spring.io/spring-cloud-task-app-starters/[Task App Starter applications]
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- Import https://cloud.spring.io/spring-cloud-stream-app-starters/[Stream App Starter applications]
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- Create several Task Applications
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- Execute each Task Application several times
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In order to get everything running we need to setup the following server instances:
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* Spring Cloud Skipper
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* Spring Cloud Data Flow
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== Build + Run
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Configure the example application in `DataflowTemplateApplication.java`. Then build
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using `$ mvn clean package` and run using
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`$ java -jar target/dataflow-template-load-generator-1.0.0.BUILD-SNAPSHOT.jar`
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143
dataflow-template-load-generator/mvnw.cmd
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dataflow-template-load-generator/mvnw.cmd
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@REM ----------------------------------------------------------------------------
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@REM Licensed to the Apache Software Foundation (ASF) under one
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@REM or more contributor license agreements. See the NOTICE file
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@REM distributed with this work for additional information
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@REM regarding copyright ownership. The ASF licenses this file
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@REM to you under the Apache License, Version 2.0 (the
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@REM "License"); you may not use this file except in compliance
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@REM with the License. You may obtain a copy of the License at
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@REM
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@REM https://www.apache.org/licenses/LICENSE-2.0
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@REM
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@REM Unless required by applicable law or agreed to in writing,
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@REM software distributed under the License is distributed on an
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@REM "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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@REM KIND, either express or implied. See the License for the
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@REM specific language governing permissions and limitations
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@REM under the License.
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@REM ----------------------------------------------------------------------------
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@REM ----------------------------------------------------------------------------
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@REM Maven2 Start Up Batch script
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@REM
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@REM Required ENV vars:
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@REM JAVA_HOME - location of a JDK home dir
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@REM
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@REM Optional ENV vars
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@REM M2_HOME - location of maven2's installed home dir
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@REM MAVEN_BATCH_ECHO - set to 'on' to enable the echoing of the batch commands
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@REM MAVEN_BATCH_PAUSE - set to 'on' to wait for a key stroke before ending
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@REM MAVEN_OPTS - parameters passed to the Java VM when running Maven
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@REM e.g. to debug Maven itself, use
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@REM set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000
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@REM MAVEN_SKIP_RC - flag to disable loading of mavenrc files
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@REM ----------------------------------------------------------------------------
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@REM Begin all REM lines with '@' in case MAVEN_BATCH_ECHO is 'on'
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@echo off
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@REM enable echoing my setting MAVEN_BATCH_ECHO to 'on'
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@if "%MAVEN_BATCH_ECHO%" == "on" echo %MAVEN_BATCH_ECHO%
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@REM set %HOME% to equivalent of $HOME
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if "%HOME%" == "" (set "HOME=%HOMEDRIVE%%HOMEPATH%")
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@REM Execute a user defined script before this one
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if not "%MAVEN_SKIP_RC%" == "" goto skipRcPre
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@REM check for pre script, once with legacy .bat ending and once with .cmd ending
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if exist "%HOME%\mavenrc_pre.bat" call "%HOME%\mavenrc_pre.bat"
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if exist "%HOME%\mavenrc_pre.cmd" call "%HOME%\mavenrc_pre.cmd"
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:skipRcPre
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@setlocal
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set ERROR_CODE=0
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@REM To isolate internal variables from possible post scripts, we use another setlocal
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@setlocal
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@REM ==== START VALIDATION ====
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if not "%JAVA_HOME%" == "" goto OkJHome
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echo.
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echo Error: JAVA_HOME not found in your environment. >&2
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echo Please set the JAVA_HOME variable in your environment to match the >&2
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echo location of your Java installation. >&2
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echo.
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goto error
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:OkJHome
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if exist "%JAVA_HOME%\bin\java.exe" goto init
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echo.
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echo Error: JAVA_HOME is set to an invalid directory. >&2
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echo JAVA_HOME = "%JAVA_HOME%" >&2
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echo Please set the JAVA_HOME variable in your environment to match the >&2
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echo location of your Java installation. >&2
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echo.
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goto error
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@REM ==== END VALIDATION ====
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:init
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@REM Find the project base dir, i.e. the directory that contains the folder ".mvn".
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@REM Fallback to current working directory if not found.
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set MAVEN_PROJECTBASEDIR=%MAVEN_BASEDIR%
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IF NOT "%MAVEN_PROJECTBASEDIR%"=="" goto endDetectBaseDir
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set EXEC_DIR=%CD%
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set WDIR=%EXEC_DIR%
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:findBaseDir
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IF EXIST "%WDIR%"\.mvn goto baseDirFound
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cd ..
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IF "%WDIR%"=="%CD%" goto baseDirNotFound
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set WDIR=%CD%
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goto findBaseDir
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:baseDirFound
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set MAVEN_PROJECTBASEDIR=%WDIR%
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cd "%EXEC_DIR%"
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goto endDetectBaseDir
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:baseDirNotFound
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set MAVEN_PROJECTBASEDIR=%EXEC_DIR%
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cd "%EXEC_DIR%"
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:endDetectBaseDir
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IF NOT EXIST "%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config" goto endReadAdditionalConfig
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@setlocal EnableExtensions EnableDelayedExpansion
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for /F "usebackq delims=" %%a in ("%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config") do set JVM_CONFIG_MAVEN_PROPS=!JVM_CONFIG_MAVEN_PROPS! %%a
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@endlocal & set JVM_CONFIG_MAVEN_PROPS=%JVM_CONFIG_MAVEN_PROPS%
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:endReadAdditionalConfig
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SET MAVEN_JAVA_EXE="%JAVA_HOME%\bin\java.exe"
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set WRAPPER_JAR="%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.jar"
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set WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain
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%MAVEN_JAVA_EXE% %JVM_CONFIG_MAVEN_PROPS% %MAVEN_OPTS% %MAVEN_DEBUG_OPTS% -classpath %WRAPPER_JAR% "-Dmaven.multiModuleProjectDirectory=%MAVEN_PROJECTBASEDIR%" %WRAPPER_LAUNCHER% %MAVEN_CONFIG% %*
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if ERRORLEVEL 1 goto error
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goto end
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:error
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set ERROR_CODE=1
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:end
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@endlocal & set ERROR_CODE=%ERROR_CODE%
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if not "%MAVEN_SKIP_RC%" == "" goto skipRcPost
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@REM check for post script, once with legacy .bat ending and once with .cmd ending
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if exist "%HOME%\mavenrc_post.bat" call "%HOME%\mavenrc_post.bat"
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if exist "%HOME%\mavenrc_post.cmd" call "%HOME%\mavenrc_post.cmd"
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:skipRcPost
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@REM pause the script if MAVEN_BATCH_PAUSE is set to 'on'
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if "%MAVEN_BATCH_PAUSE%" == "on" pause
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if "%MAVEN_TERMINATE_CMD%" == "on" exit %ERROR_CODE%
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exit /B %ERROR_CODE%
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90
dataflow-template-load-generator/pom.xml
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dataflow-template-load-generator/pom.xml
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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<groupId>org.springframework.cloud.samples</groupId>
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<artifactId>dataflow-template-load-generator</artifactId>
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<version>1.0.0.BUILD-SNAPSHOT</version>
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<packaging>jar</packaging>
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<name>ldapserver</name>
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<description>Utility app to generate Task and Batch Execution data for Spring Cloud Data Flow</description>
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<parent>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-parent</artifactId>
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<version>2.1.0.RELEASE</version>
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<relativePath/> <!-- lookup parent from repository -->
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</parent>
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<properties>
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<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
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<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
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<java.version>1.8</java.version>
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</properties>
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<dependencies>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter</artifactId>
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</dependency>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-test</artifactId>
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<scope>test</scope>
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</dependency>
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<dependency>
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<groupId>org.springframework.cloud</groupId>
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<artifactId>spring-cloud-dataflow-rest-client</artifactId>
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<version>2.1.0.RELEASE</version>
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</dependency>
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</dependencies>
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<build>
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<plugins>
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<plugin>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-maven-plugin</artifactId>
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</plugin>
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</plugins>
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</build>
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<repositories>
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<repository>
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<id>spring-snapshots</id>
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<name>Spring Snapshots</name>
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<url>https://repo.spring.io/snapshot</url>
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<snapshots>
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<enabled>true</enabled>
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</snapshots>
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</repository>
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<repository>
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<id>spring-milestones</id>
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<name>Spring Milestones</name>
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<url>https://repo.spring.io/milestone</url>
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<snapshots>
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<enabled>false</enabled>
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</snapshots>
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</repository>
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</repositories>
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<pluginRepositories>
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<pluginRepository>
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<id>spring-snapshots</id>
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<name>Spring Snapshots</name>
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<url>https://repo.spring.io/snapshot</url>
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<snapshots>
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<enabled>true</enabled>
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</snapshots>
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</pluginRepository>
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<pluginRepository>
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<id>spring-milestones</id>
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<name>Spring Milestones</name>
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<url>https://repo.spring.io/milestone</url>
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<snapshots>
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<enabled>false</enabled>
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</snapshots>
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</pluginRepository>
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</pluginRepositories>
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</project>
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@@ -0,0 +1,152 @@
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/*
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* Copyright 2019 the original author or authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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||||||
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* You may obtain a copy of the License at
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*
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* http://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, software
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||||||
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||||
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* See the License for the specific language governing permissions and
|
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* limitations under the License.
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*/
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package org.springframework.cloud.samples.dataflowtemplate;
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import java.net.URI;
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import java.util.ArrayList;
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import java.util.HashMap;
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import java.util.HashSet;
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import java.util.Map;
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import java.util.Set;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import org.springframework.boot.ApplicationArguments;
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import org.springframework.boot.ApplicationRunner;
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import org.springframework.boot.SpringApplication;
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import org.springframework.boot.autoconfigure.SpringBootApplication;
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import org.springframework.cloud.dataflow.rest.client.DataFlowTemplate;
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import org.springframework.cloud.dataflow.rest.client.TaskOperations;
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import org.springframework.cloud.dataflow.rest.client.config.DataFlowClientAutoConfiguration;
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import org.springframework.cloud.dataflow.rest.resource.AppRegistrationResource;
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import org.springframework.cloud.dataflow.rest.resource.CurrentTaskExecutionsResource;
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import org.springframework.cloud.dataflow.rest.resource.TaskDefinitionResource;
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import org.springframework.cloud.dataflow.rest.util.HttpClientConfigurer;
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import org.springframework.hateoas.PagedResources;
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import org.springframework.web.client.RestTemplate;
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/**
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*
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* @author Gunnar Hillert
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*
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*/
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@SpringBootApplication(exclude = { DataFlowClientAutoConfiguration.class })
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public class LoadGeneratorApplication implements ApplicationRunner {
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public static void main(String[] args) {
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SpringApplication.run(LoadGeneratorApplication.class, args);
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}
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private final Logger logger = LoggerFactory.getLogger(LoadGeneratorApplication.class);
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@Override
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public void run(ApplicationArguments applicationArguments) throws Exception {
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final DataFlowTemplate dataFlowTemplate = getDataFlowTemplate(null, null, "http://localhost:9393");
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importApps(dataFlowTemplate);
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final Map<String, String> templateTaskDefinitions = new HashMap<>();
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templateTaskDefinitions.put("timestamp", "timestamp");
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templateTaskDefinitions.put("timestamp-batch", "timestamp-batch");
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final TaskOperations taskOperations = dataFlowTemplate.taskOperations();
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final int numberOfDesiredTaskDefinitions = 100;
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final Set<TaskDefinitionResource> taskDefinitions = new HashSet<>(numberOfDesiredTaskDefinitions*templateTaskDefinitions.size());
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||||||
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for (java.util.Map.Entry<String, String> entry : templateTaskDefinitions.entrySet()) {
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for (int i = 1; i <= numberOfDesiredTaskDefinitions; i++) {
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final TaskDefinitionResource createdTaskDefinition = taskOperations.create(entry.getKey() + "_" + i, entry.getValue());
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taskDefinitions.add(createdTaskDefinition);
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}
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}
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||||||
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logger.info("\n\nCreated a total of {} Task Definitions.\n", taskDefinitions.size());
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||||||
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final Set<Long> executions = new HashSet<>(0);
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int numberOfDesiredExecutions = 20;
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||||||
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for (TaskDefinitionResource taskDefinition : taskDefinitions) {
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final Set<Long> executionsPerTaskDefinition = new HashSet<>(0);
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||||||
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while (executionsPerTaskDefinition.size() < numberOfDesiredExecutions) {
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CurrentTaskExecutionsResource c = taskOperations.currentTaskExecutions().iterator().next();
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long runningExecutions = c.getRunningExecutionCount();
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||||||
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long maxExecutions = c.getMaximumTaskExecutions();
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||||||
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long delta = maxExecutions - runningExecutions;
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||||||
|
|
||||||
|
if (delta > 0) {
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||||||
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long executionId = taskOperations.launch(taskDefinition.getName(), new HashMap<>(), new ArrayList<>());
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||||||
|
executionsPerTaskDefinition.add(executionId);
|
||||||
|
}
|
||||||
|
|
||||||
|
Thread.sleep(200);
|
||||||
|
}
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||||||
|
executions.addAll(executionsPerTaskDefinition);
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||||||
|
}
|
||||||
|
|
||||||
|
logger.info("\n\nCreated a total of {} task executions.", executions.size());
|
||||||
|
}
|
||||||
|
|
||||||
|
private void importApps(DataFlowTemplate dataFlowTemplate) {
|
||||||
|
final String taskAppRegistrationUrl = "https://dataflow.spring.io/Elston-GA-task-applications-maven";
|
||||||
|
final String appRegistrationUrl = "https://dataflow.spring.io/Einstein-SR3-stream-applications-rabbit-maven";
|
||||||
|
logger.info("\n\nImporting Stream Applications from: {}.\n", appRegistrationUrl);
|
||||||
|
logger.info("\n\nImporting Task Applications from: {}.\n", taskAppRegistrationUrl);
|
||||||
|
|
||||||
|
final PagedResources<AppRegistrationResource> appRegistrations =
|
||||||
|
dataFlowTemplate.appRegistryOperations().importFromResource(appRegistrationUrl, false);
|
||||||
|
|
||||||
|
final PagedResources<AppRegistrationResource> taskAppRegistrations =
|
||||||
|
dataFlowTemplate.appRegistryOperations().importFromResource(taskAppRegistrationUrl, false);
|
||||||
|
|
||||||
|
logger.info("Imported {} Stream Applications. Showing the first {} from page {}",
|
||||||
|
appRegistrations.getMetadata().getTotalElements(),
|
||||||
|
appRegistrations.getMetadata().getSize(),
|
||||||
|
appRegistrations.getMetadata().getNumber());
|
||||||
|
|
||||||
|
for (AppRegistrationResource app : appRegistrations.getContent()) {
|
||||||
|
logger.info("{} (type: {})", app.getName(), app.getType());
|
||||||
|
}
|
||||||
|
|
||||||
|
logger.info("Imported {} Task Applications. Showing the first {} from page {}",
|
||||||
|
taskAppRegistrations.getMetadata().getTotalElements(),
|
||||||
|
taskAppRegistrations.getMetadata().getSize(),
|
||||||
|
taskAppRegistrations.getMetadata().getNumber());
|
||||||
|
|
||||||
|
for (AppRegistrationResource app : taskAppRegistrations.getContent()) {
|
||||||
|
logger.info("{} (type: {})", app.getName(), app.getType());
|
||||||
|
}
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
private static DataFlowTemplate getDataFlowTemplate(String username, String password, String target) {
|
||||||
|
final URI targetUri = URI.create(target);
|
||||||
|
|
||||||
|
final RestTemplate restTemplate = DataFlowTemplate.getDefaultDataflowRestTemplate();
|
||||||
|
|
||||||
|
if (username != null && password != null) {
|
||||||
|
final HttpClientConfigurer httpClientConfigurer = HttpClientConfigurer.create(targetUri);
|
||||||
|
httpClientConfigurer.basicAuthCredentials(username, password);
|
||||||
|
restTemplate.setRequestFactory(httpClientConfigurer.buildClientHttpRequestFactory());
|
||||||
|
}
|
||||||
|
|
||||||
|
final DataFlowTemplate dataFlowTemplate = new DataFlowTemplate(targetUri, restTemplate);
|
||||||
|
|
||||||
|
return dataFlowTemplate;
|
||||||
|
}
|
||||||
|
}
|
||||||
Reference in New Issue
Block a user