├── .gitignore ├── README.adoc ├── RabbitMQFlow.graffle ├── build.gradle ├── gradle └── wrapper │ ├── gradle-wrapper.jar │ └── gradle-wrapper.properties ├── gradlew ├── gradlew.bat ├── settings.gradle ├── work-dispatcher ├── build.gradle └── src │ ├── main │ ├── kotlin │ │ └── works │ │ │ └── service │ │ │ ├── IntegrationConfiguration.kt │ │ │ ├── SampleWorkController.kt │ │ │ ├── WorkDispatcherApplication.kt │ │ │ ├── WorkUnitGateway.kt │ │ │ ├── WorkUnitsSource.kt │ │ │ └── domain │ │ │ └── WorkUnit.kt │ └── resources │ │ └── application.yml │ └── test │ └── kotlin │ └── works │ └── service │ └── DispatcherTest.kt └── work-handler ├── build.gradle └── src ├── main ├── kotlin │ └── works │ │ └── processor │ │ ├── IntegrationConfiguration.kt │ │ ├── WorkHandler.kt │ │ ├── WorkHandlerApplication.kt │ │ ├── WorkUnitService.kt │ │ ├── WorkUnitsSink.kt │ │ └── domain │ │ └── WorkUnit.kt └── resources │ └── application.yml └── test └── kotlin └── works └── processor └── WorkProcessorTest.kt /.gitignore: -------------------------------------------------------------------------------- 1 | target/ 2 | .settings/ 3 | .springBeans 4 | .classpath 5 | .project 6 | .idea/ 7 | *.iml 8 | 9 | build/ 10 | out/ 11 | .gradle/ -------------------------------------------------------------------------------- /README.adoc: -------------------------------------------------------------------------------- 1 | Sample Spring Cloud Stream code to send and process "Work Units" with a RabbitMQ broker mediating the transfer 2 | 3 | == Steps 4 | 5 | * Start RabbitMQ server: 6 | 7 | [source] 8 | ---- 9 | rabbitmq-server 10 | ---- 11 | 12 | 13 | * Start the Work Handler: 14 | 15 | [source] 16 | ---- 17 | cd work-handler 18 | ../gradlew bootRun 19 | ---- 20 | 21 | * Start the Work Dispatcher: 22 | 23 | [source] 24 | ---- 25 | cd work-dispatcher 26 | ../gradlew bootRun 27 | ---- 28 | 29 | 30 | * Create dummy work units by calling a controller endpoint: 31 | 32 | [source] 33 | ---- 34 | http://localhost:8080/generateWork?definition=test 35 | ---- -------------------------------------------------------------------------------- /RabbitMQFlow.graffle: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/bijukunjummen/spring-cloud-stream-rabbit-sample/c227719e44082f3bd58ed38f52b84e8b12c634f8/RabbitMQFlow.graffle -------------------------------------------------------------------------------- /build.gradle: -------------------------------------------------------------------------------- 1 | buildscript { 2 | ext { 3 | kotlinVersion = '1.1.4-3' 4 | springBootVersion = '2.0.0.M3' 5 | } 6 | repositories { 7 | mavenCentral() 8 | maven { url "https://repo.spring.io/snapshot" } 9 | maven { url "https://repo.spring.io/milestone" } 10 | } 11 | dependencies { 12 | classpath("org.springframework.boot:spring-boot-gradle-plugin:${springBootVersion}") 13 | classpath("org.jetbrains.kotlin:kotlin-gradle-plugin:${kotlinVersion}") 14 | classpath("org.jetbrains.kotlin:kotlin-allopen:${kotlinVersion}") 15 | } 16 | } 17 | 18 | subprojects { 19 | apply plugin: 'kotlin' 20 | apply plugin: 'kotlin-spring' 21 | apply plugin: 'org.springframework.boot' 22 | apply plugin: 'io.spring.dependency-management' 23 | 24 | group = 'com.example' 25 | version = '0.0.1-SNAPSHOT' 26 | sourceCompatibility = 1.8 27 | compileKotlin { 28 | kotlinOptions.jvmTarget = "1.8" 29 | } 30 | compileTestKotlin { 31 | kotlinOptions.jvmTarget = "1.8" 32 | } 33 | 34 | repositories { 35 | mavenCentral() 36 | maven { url "https://repo.spring.io/snapshot" } 37 | maven { url "https://repo.spring.io/milestone" } 38 | } 39 | 40 | 41 | ext { 42 | springCloudVersion = 'Finchley.M2' 43 | } 44 | 45 | dependencies { 46 | compile('org.springframework.cloud:spring-cloud-starter-stream-rabbit') 47 | compile('org.springframework.boot:spring-boot-starter-web') 48 | compile("org.jetbrains.kotlin:kotlin-stdlib-jre8:${kotlinVersion}") 49 | compile("org.jetbrains.kotlin:kotlin-reflect:${kotlinVersion}") 50 | testCompile('org.springframework.boot:spring-boot-starter-test') 51 | testCompile("org.springframework.cloud:spring-cloud-stream-test-support") 52 | } 53 | 54 | dependencyManagement { 55 | imports { 56 | mavenBom "org.springframework.cloud:spring-cloud-dependencies:${springCloudVersion}" 57 | } 58 | } 59 | 60 | } -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.jar: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/bijukunjummen/spring-cloud-stream-rabbit-sample/c227719e44082f3bd58ed38f52b84e8b12c634f8/gradle/wrapper/gradle-wrapper.jar -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.properties: -------------------------------------------------------------------------------- 1 | #Tue Sep 19 17:33:12 PDT 2017 2 | distributionBase=GRADLE_USER_HOME 3 | distributionPath=wrapper/dists 4 | zipStoreBase=GRADLE_USER_HOME 5 | zipStorePath=wrapper/dists 6 | distributionUrl=https\://services.gradle.org/distributions/gradle-4.0.2-all.zip 7 | -------------------------------------------------------------------------------- /gradlew: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env sh 2 | 3 | ############################################################################## 4 | ## 5 | ## Gradle start up script for UN*X 6 | ## 7 | ############################################################################## 8 | 9 | # Attempt to set APP_HOME 10 | # Resolve links: $0 may be a link 11 | PRG="$0" 12 | # Need this for relative symlinks. 13 | while [ -h "$PRG" ] ; do 14 | ls=`ls -ld "$PRG"` 15 | link=`expr "$ls" : '.*-> \(.*\)$'` 16 | if expr "$link" : '/.*' > /dev/null; then 17 | PRG="$link" 18 | else 19 | PRG=`dirname "$PRG"`"/$link" 20 | fi 21 | done 22 | SAVED="`pwd`" 23 | cd "`dirname \"$PRG\"`/" >/dev/null 24 | APP_HOME="`pwd -P`" 25 | cd "$SAVED" >/dev/null 26 | 27 | APP_NAME="Gradle" 28 | APP_BASE_NAME=`basename "$0"` 29 | 30 | # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 31 | DEFAULT_JVM_OPTS="" 32 | 33 | # Use the maximum available, or set MAX_FD != -1 to use that value. 34 | MAX_FD="maximum" 35 | 36 | warn ( ) { 37 | echo "$*" 38 | } 39 | 40 | die ( ) { 41 | echo 42 | echo "$*" 43 | echo 44 | exit 1 45 | } 46 | 47 | # OS specific support (must be 'true' or 'false'). 48 | cygwin=false 49 | msys=false 50 | darwin=false 51 | nonstop=false 52 | case "`uname`" in 53 | CYGWIN* ) 54 | cygwin=true 55 | ;; 56 | Darwin* ) 57 | darwin=true 58 | ;; 59 | MINGW* ) 60 | msys=true 61 | ;; 62 | NONSTOP* ) 63 | nonstop=true 64 | ;; 65 | esac 66 | 67 | CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar 68 | 69 | # Determine the Java command to use to start the JVM. 70 | if [ -n "$JAVA_HOME" ] ; then 71 | if [ -x "$JAVA_HOME/jre/sh/java" ] ; then 72 | # IBM's JDK on AIX uses strange locations for the executables 73 | JAVACMD="$JAVA_HOME/jre/sh/java" 74 | else 75 | JAVACMD="$JAVA_HOME/bin/java" 76 | fi 77 | if [ ! -x "$JAVACMD" ] ; then 78 | die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME 79 | 80 | Please set the JAVA_HOME variable in your environment to match the 81 | location of your Java installation." 82 | fi 83 | else 84 | JAVACMD="java" 85 | which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 86 | 87 | Please set the JAVA_HOME variable in your environment to match the 88 | location of your Java installation." 89 | fi 90 | 91 | # Increase the maximum file descriptors if we can. 92 | if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then 93 | MAX_FD_LIMIT=`ulimit -H -n` 94 | if [ $? -eq 0 ] ; then 95 | if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then 96 | MAX_FD="$MAX_FD_LIMIT" 97 | fi 98 | ulimit -n $MAX_FD 99 | if [ $? -ne 0 ] ; then 100 | warn "Could not set maximum file descriptor limit: $MAX_FD" 101 | fi 102 | else 103 | warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT" 104 | fi 105 | fi 106 | 107 | # For Darwin, add options to specify how the application appears in the dock 108 | if $darwin; then 109 | GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\"" 110 | fi 111 | 112 | # For Cygwin, switch paths to Windows format before running java 113 | if $cygwin ; then 114 | APP_HOME=`cygpath --path --mixed "$APP_HOME"` 115 | CLASSPATH=`cygpath --path --mixed "$CLASSPATH"` 116 | JAVACMD=`cygpath --unix "$JAVACMD"` 117 | 118 | # We build the pattern for arguments to be converted via cygpath 119 | ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null` 120 | SEP="" 121 | for dir in $ROOTDIRSRAW ; do 122 | ROOTDIRS="$ROOTDIRS$SEP$dir" 123 | SEP="|" 124 | done 125 | OURCYGPATTERN="(^($ROOTDIRS))" 126 | # Add a user-defined pattern to the cygpath arguments 127 | if [ "$GRADLE_CYGPATTERN" != "" ] ; then 128 | OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)" 129 | fi 130 | # Now convert the arguments - kludge to limit ourselves to /bin/sh 131 | i=0 132 | for arg in "$@" ; do 133 | CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -` 134 | CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option 135 | 136 | if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition 137 | eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"` 138 | else 139 | eval `echo args$i`="\"$arg\"" 140 | fi 141 | i=$((i+1)) 142 | done 143 | case $i in 144 | (0) set -- ;; 145 | (1) set -- "$args0" ;; 146 | (2) set -- "$args0" "$args1" ;; 147 | (3) set -- "$args0" "$args1" "$args2" ;; 148 | (4) set -- "$args0" "$args1" "$args2" "$args3" ;; 149 | (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;; 150 | (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;; 151 | (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;; 152 | (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;; 153 | (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;; 154 | esac 155 | fi 156 | 157 | # Escape application args 158 | save ( ) { 159 | for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done 160 | echo " " 161 | } 162 | APP_ARGS=$(save "$@") 163 | 164 | # Collect all arguments for the java command, following the shell quoting and substitution rules 165 | eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS" 166 | 167 | # by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong 168 | if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then 169 | cd "$(dirname "$0")" 170 | fi 171 | 172 | exec "$JAVACMD" "$@" 173 | -------------------------------------------------------------------------------- /gradlew.bat: -------------------------------------------------------------------------------- 1 | @if "%DEBUG%" == "" @echo off 2 | @rem ########################################################################## 3 | @rem 4 | @rem Gradle startup script for Windows 5 | @rem 6 | @rem ########################################################################## 7 | 8 | @rem Set local scope for the variables with windows NT shell 9 | if "%OS%"=="Windows_NT" setlocal 10 | 11 | set DIRNAME=%~dp0 12 | if "%DIRNAME%" == "" set DIRNAME=. 13 | set APP_BASE_NAME=%~n0 14 | set APP_HOME=%DIRNAME% 15 | 16 | @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 17 | set DEFAULT_JVM_OPTS= 18 | 19 | @rem Find java.exe 20 | if defined JAVA_HOME goto findJavaFromJavaHome 21 | 22 | set JAVA_EXE=java.exe 23 | %JAVA_EXE% -version >NUL 2>&1 24 | if "%ERRORLEVEL%" == "0" goto init 25 | 26 | echo. 27 | echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 28 | echo. 29 | echo Please set the JAVA_HOME variable in your environment to match the 30 | echo location of your Java installation. 31 | 32 | goto fail 33 | 34 | :findJavaFromJavaHome 35 | set JAVA_HOME=%JAVA_HOME:"=% 36 | set JAVA_EXE=%JAVA_HOME%/bin/java.exe 37 | 38 | if exist "%JAVA_EXE%" goto init 39 | 40 | echo. 41 | echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 42 | echo. 43 | echo Please set the JAVA_HOME variable in your environment to match the 44 | echo location of your Java installation. 45 | 46 | goto fail 47 | 48 | :init 49 | @rem Get command-line arguments, handling Windows variants 50 | 51 | if not "%OS%" == "Windows_NT" goto win9xME_args 52 | 53 | :win9xME_args 54 | @rem Slurp the command line arguments. 55 | set CMD_LINE_ARGS= 56 | set _SKIP=2 57 | 58 | :win9xME_args_slurp 59 | if "x%~1" == "x" goto execute 60 | 61 | set CMD_LINE_ARGS=%* 62 | 63 | :execute 64 | @rem Setup the command line 65 | 66 | set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar 67 | 68 | @rem Execute Gradle 69 | "%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS% 70 | 71 | :end 72 | @rem End local scope for the variables with windows NT shell 73 | if "%ERRORLEVEL%"=="0" goto mainEnd 74 | 75 | :fail 76 | rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of 77 | rem the _cmd.exe /c_ return code! 78 | if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1 79 | exit /b 1 80 | 81 | :mainEnd 82 | if "%OS%"=="Windows_NT" endlocal 83 | 84 | :omega 85 | -------------------------------------------------------------------------------- /settings.gradle: -------------------------------------------------------------------------------- 1 | include "work-dispatcher" 2 | include "work-handler" -------------------------------------------------------------------------------- /work-dispatcher/build.gradle: -------------------------------------------------------------------------------- 1 | dependencies { 2 | } 3 | 4 | -------------------------------------------------------------------------------- /work-dispatcher/src/main/kotlin/works/service/IntegrationConfiguration.kt: -------------------------------------------------------------------------------- 1 | package works.service 2 | 3 | import org.springframework.cloud.stream.annotation.EnableBinding 4 | import org.springframework.context.annotation.Configuration 5 | import org.springframework.integration.annotation.IntegrationComponentScan 6 | 7 | @Configuration 8 | @EnableBinding(WorkUnitsSource::class) 9 | @IntegrationComponentScan 10 | class IntegrationConfiguration 11 | -------------------------------------------------------------------------------- /work-dispatcher/src/main/kotlin/works/service/SampleWorkController.kt: -------------------------------------------------------------------------------- 1 | package works.service 2 | 3 | import org.springframework.beans.factory.annotation.Autowired 4 | import org.springframework.stereotype.Controller 5 | import org.springframework.web.bind.annotation.RequestMapping 6 | import org.springframework.web.bind.annotation.RequestParam 7 | import org.springframework.web.bind.annotation.ResponseBody 8 | import works.service.domain.WorkUnit 9 | 10 | import java.util.UUID 11 | 12 | @Controller 13 | class SampleWorkController { 14 | 15 | @Autowired 16 | private lateinit var workUnitGateway: WorkUnitGateway 17 | 18 | @RequestMapping("/generateWork") 19 | @ResponseBody 20 | fun generateWork(@RequestParam("definition") definition: String): WorkUnit { 21 | val sampleWorkUnit = WorkUnit(UUID.randomUUID().toString(), definition) 22 | workUnitGateway.generate(sampleWorkUnit) 23 | return sampleWorkUnit 24 | } 25 | } 26 | -------------------------------------------------------------------------------- /work-dispatcher/src/main/kotlin/works/service/WorkDispatcherApplication.kt: -------------------------------------------------------------------------------- 1 | package works.service 2 | 3 | import org.springframework.boot.SpringApplication 4 | import org.springframework.boot.autoconfigure.SpringBootApplication 5 | 6 | @SpringBootApplication 7 | class WorkDispatcherApplication 8 | 9 | fun main(args: Array) { 10 | SpringApplication.run(WorkDispatcherApplication::class.java, *args) 11 | } 12 | -------------------------------------------------------------------------------- /work-dispatcher/src/main/kotlin/works/service/WorkUnitGateway.kt: -------------------------------------------------------------------------------- 1 | package works.service 2 | 3 | import org.springframework.integration.annotation.Gateway 4 | import org.springframework.integration.annotation.MessagingGateway 5 | import works.service.domain.WorkUnit 6 | 7 | @MessagingGateway 8 | interface WorkUnitGateway { 9 | @Gateway(requestChannel = WorkUnitsSource.CHANNEL_NAME) 10 | fun generate(workUnit: WorkUnit) 11 | 12 | } 13 | -------------------------------------------------------------------------------- /work-dispatcher/src/main/kotlin/works/service/WorkUnitsSource.kt: -------------------------------------------------------------------------------- 1 | package works.service 2 | 3 | import org.springframework.cloud.stream.annotation.Output 4 | import org.springframework.messaging.MessageChannel 5 | 6 | interface WorkUnitsSource { 7 | 8 | @Output 9 | fun worksChannel(): MessageChannel 10 | 11 | companion object { 12 | const val CHANNEL_NAME = "worksChannel" 13 | } 14 | } 15 | -------------------------------------------------------------------------------- /work-dispatcher/src/main/kotlin/works/service/domain/WorkUnit.kt: -------------------------------------------------------------------------------- 1 | package works.service.domain 2 | 3 | data class WorkUnit(val id: String? = null, 4 | val definition: String? = null) 5 | -------------------------------------------------------------------------------- /work-dispatcher/src/main/resources/application.yml: -------------------------------------------------------------------------------- 1 | server: 2 | port: 8080 3 | 4 | spring: 5 | cloud: 6 | stream: 7 | bindings: 8 | worksChannel: 9 | binder: rabbit 10 | destination: work.exchange 11 | contentType: application/json 12 | group: testgroup -------------------------------------------------------------------------------- /work-dispatcher/src/test/kotlin/works/service/DispatcherTest.kt: -------------------------------------------------------------------------------- 1 | package works.service 2 | 3 | import org.assertj.core.api.Assertions.assertThat 4 | import org.junit.Test 5 | import org.junit.runner.RunWith 6 | import org.skyscreamer.jsonassert.JSONAssert 7 | import org.springframework.beans.factory.annotation.Autowired 8 | import org.springframework.boot.test.context.SpringBootTest 9 | import org.springframework.cloud.stream.test.binder.MessageCollector 10 | import org.springframework.messaging.Message 11 | import org.springframework.test.context.junit4.SpringRunner 12 | import works.service.domain.WorkUnit 13 | 14 | @RunWith(SpringRunner::class) 15 | @SpringBootTest 16 | class DispatcherTest { 17 | 18 | @Autowired 19 | private lateinit var workUnitsSource: WorkUnitsSource 20 | 21 | @Autowired 22 | private lateinit var gateway: WorkUnitGateway 23 | 24 | @Autowired 25 | private lateinit var messageCollector: MessageCollector 26 | 27 | @Test 28 | fun shouldBeDispatched() { 29 | gateway.generate(WorkUnit("id", "definition")) 30 | val message: Message<*> = messageCollector.forChannel(workUnitsSource.worksChannel()).poll() 31 | assertThat(message).isNotNull() 32 | JSONAssert.assertEquals(""" 33 | |{ 34 | | "id": "id", 35 | | "definition":"definition" 36 | |} """.trimMargin(), message.payload as String, true 37 | ) 38 | } 39 | } -------------------------------------------------------------------------------- /work-handler/build.gradle: -------------------------------------------------------------------------------- 1 | dependencies { 2 | } 3 | 4 | -------------------------------------------------------------------------------- /work-handler/src/main/kotlin/works/processor/IntegrationConfiguration.kt: -------------------------------------------------------------------------------- 1 | package works.processor 2 | 3 | import org.springframework.cloud.stream.annotation.EnableBinding 4 | import org.springframework.context.annotation.Configuration 5 | 6 | @Configuration 7 | @EnableBinding(WorkUnitsSink::class) 8 | class IntegrationConfiguration 9 | -------------------------------------------------------------------------------- /work-handler/src/main/kotlin/works/processor/WorkHandler.kt: -------------------------------------------------------------------------------- 1 | package works.processor 2 | 3 | import org.slf4j.LoggerFactory 4 | import org.springframework.cloud.stream.annotation.StreamListener 5 | import org.springframework.stereotype.Service 6 | import works.processor.domain.WorkUnit 7 | 8 | @Service 9 | class WorkHandler(val workUnitService: WorkUnitService) { 10 | 11 | @StreamListener(WorkUnitsSink.CHANNEL_NAME) 12 | fun process(workUnit: WorkUnit) { 13 | workUnitService.process(workUnit) 14 | } 15 | 16 | } 17 | -------------------------------------------------------------------------------- /work-handler/src/main/kotlin/works/processor/WorkHandlerApplication.kt: -------------------------------------------------------------------------------- 1 | package works.processor 2 | 3 | import org.springframework.boot.SpringApplication 4 | import org.springframework.boot.autoconfigure.SpringBootApplication 5 | 6 | @SpringBootApplication 7 | class WorkHandlerApplication 8 | 9 | fun main(args: Array) { 10 | SpringApplication.run(WorkHandlerApplication::class.java, *args) 11 | } -------------------------------------------------------------------------------- /work-handler/src/main/kotlin/works/processor/WorkUnitService.kt: -------------------------------------------------------------------------------- 1 | package works.processor 2 | 3 | import org.slf4j.LoggerFactory 4 | import org.springframework.stereotype.Service 5 | import works.processor.domain.WorkUnit 6 | 7 | @Service 8 | class WorkUnitService { 9 | 10 | fun process(workUnit: WorkUnit) { 11 | LOGGER.info("Handling work unit - id: {}, definition: {}", workUnit.id, workUnit.definition) 12 | } 13 | 14 | companion object { 15 | private val LOGGER = LoggerFactory.getLogger(WorkHandler::class.java) 16 | } 17 | } -------------------------------------------------------------------------------- /work-handler/src/main/kotlin/works/processor/WorkUnitsSink.kt: -------------------------------------------------------------------------------- 1 | package works.processor 2 | 3 | import org.springframework.cloud.stream.annotation.Input 4 | import org.springframework.messaging.SubscribableChannel 5 | 6 | interface WorkUnitsSink { 7 | 8 | @Input 9 | fun worksChannel(): SubscribableChannel 10 | 11 | companion object { 12 | const val CHANNEL_NAME = "worksChannel" 13 | } 14 | } 15 | -------------------------------------------------------------------------------- /work-handler/src/main/kotlin/works/processor/domain/WorkUnit.kt: -------------------------------------------------------------------------------- 1 | package works.processor.domain 2 | 3 | data class WorkUnit(val id: String? = null, 4 | val definition: String? = null) 5 | -------------------------------------------------------------------------------- /work-handler/src/main/resources/application.yml: -------------------------------------------------------------------------------- 1 | server: 2 | port: 8081 3 | 4 | spring: 5 | cloud: 6 | stream: 7 | bindings: 8 | worksChannel: 9 | binder: rabbit 10 | destination: work.exchange 11 | group: testgroup 12 | -------------------------------------------------------------------------------- /work-handler/src/test/kotlin/works/processor/WorkProcessorTest.kt: -------------------------------------------------------------------------------- 1 | package works.processor 2 | 3 | import org.junit.Test 4 | import org.junit.runner.RunWith 5 | import org.mockito.Mockito 6 | import org.springframework.beans.factory.annotation.Autowired 7 | import org.springframework.boot.test.context.SpringBootTest 8 | import org.springframework.boot.test.mock.mockito.MockBean 9 | import org.springframework.messaging.support.MessageBuilder 10 | import org.springframework.test.context.junit4.SpringRunner 11 | import works.processor.domain.WorkUnit 12 | 13 | @RunWith(SpringRunner::class) 14 | @SpringBootTest 15 | class WorkProcessorTest { 16 | 17 | @Autowired 18 | private lateinit var sink: WorkUnitsSink 19 | 20 | @MockBean 21 | private lateinit var workUnitService: WorkUnitService 22 | 23 | @Test 24 | fun testProcessAWorkUnit() { 25 | sink.worksChannel().send(MessageBuilder.withPayload(WorkUnit("id", "definition")).build()) 26 | 27 | Mockito.verify(workUnitService).process(WorkUnit("id", "definition")) 28 | } 29 | 30 | } --------------------------------------------------------------------------------