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package com.example.jet; | |
import com.hazelcast.core.ManagedContext; | |
import com.hazelcast.function.FunctionEx; | |
import com.hazelcast.jet.Jet; | |
import com.hazelcast.jet.JetInstance; | |
import com.hazelcast.jet.config.JetConfig; | |
import com.hazelcast.jet.config.JobConfig; | |
import com.hazelcast.jet.pipeline.Pipeline; | |
import com.hazelcast.jet.pipeline.Sinks; | |
import com.hazelcast.jet.pipeline.test.TestSources; | |
import com.hazelcast.spring.context.SpringManagedContext; | |
import org.junit.jupiter.api.Test; | |
import org.springframework.beans.factory.annotation.Value; | |
import org.springframework.context.annotation.AnnotationConfigApplicationContext; | |
import org.springframework.context.annotation.Bean; | |
import org.springframework.context.annotation.Configuration; | |
import org.springframework.context.annotation.PropertySource; | |
import java.util.Map; | |
import static com.hazelcast.jet.spring.JetSpringServiceFactories.bean; | |
public class LocalJetTest { | |
@Test | |
public void test1() throws Exception { | |
AnnotationConfigApplicationContext appContext = new AnnotationConfigApplicationContext(Config1.class, Config2.class); | |
appContext.start(); | |
Thread.sleep(10_000); | |
} | |
public static class MyService { | |
public String toLowerCase(String s) { | |
return s.toLowerCase(); | |
} | |
} | |
@Configuration | |
@PropertySource("classpath:spring.properties") | |
public static class Config1 { | |
@Bean | |
public MyService myService() { | |
return new MyService(); | |
} | |
} | |
@Configuration | |
public static class Config2 { | |
@Bean | |
public ManagedContext managedContext() { | |
return new SpringManagedContext(); | |
} | |
@Bean | |
public Pipeline samplePipeline(@Value("${token}") String token, @Value("${replacement}") String replacement) { | |
FunctionEx<String, String> inlineFunction = s -> s.equals(token) ? replacement : s; | |
Pipeline p = Pipeline.create(); | |
p.readFrom(TestSources.items("TEN", "TWENTY", "THIRTY")) | |
.map(inlineFunction) | |
.mapUsingService(bean(MyService.class), (myService, s) -> myService.toLowerCase(s)) | |
.writeTo(Sinks.logger()); | |
return p; | |
} | |
@Bean(destroyMethod = "shutdown") | |
public JetInstance jet(ManagedContext managedContext, Map<String, Pipeline> pipelines) { | |
JetConfig jetConfig = new JetConfig() | |
.configureHazelcast(hz -> hz.setManagedContext(managedContext)); | |
JetInstance jet = Jet.newJetInstance(jetConfig); | |
pipelines.forEach((name, pipeline) -> { | |
jet.newJob(pipeline, new JobConfig().setName(name)); | |
}); | |
return jet; | |
} | |
} | |
} |
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22:33:10.564 [ INFO] [c.h.j.i.MasterJobContext] Start executing job 'samplePipeline', execution 06fe-b9dd-9581-0001, execution graph in DOT format: | |
digraph DAG { | |
"items" [localParallelism=1]; | |
"map" [localParallelism=4]; | |
"mapUsingService" [localParallelism=4]; | |
"loggerSink" [localParallelism=1]; | |
"items" -> "map" [queueSize=1024]; | |
"map" -> "mapUsingService" [queueSize=1024]; | |
"mapUsingService" -> "loggerSink" [queueSize=1024]; | |
} | |
HINT: You can use graphviz or http://viz-js.com to visualize the printed graph. | |
22:33:10.700 [ INFO] [c.h.j.i.JobExecutionService] Execution plan for jobId=06fe-b9dd-9580-0001, jobName='samplePipeline', executionId=06fe-b9dd-9581-0001 initialized | |
22:33:10.700 [ INFO] [c.h.j.i.JobExecutionService] Start execution of job 'samplePipeline', execution 06fe-b9dd-9581-0001 from coordinator [192.168.0.33]:5701 | |
22:33:10.767 [ INFO] [c.h.j.i.c.WriteLoggerP] [samplePipeline/loggerSink#0] fifty | |
22:33:10.800 [ INFO] [c.h.j.i.c.WriteLoggerP] [samplePipeline/loggerSink#0] ten | |
22:33:10.800 [ INFO] [c.h.j.i.c.WriteLoggerP] [samplePipeline/loggerSink#0] thirty | |
22:33:10.826 [ INFO] [c.h.j.i.MasterJobContext] Execution of job 'samplePipeline', execution 06fe-b9dd-9581-0001 completed successfully |
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<?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> | |
<groupId>com.example</groupId> | |
<artifactId>demo</artifactId> | |
<version>0.0.1-SNAPSHOT</version> | |
<build> | |
<plugins> | |
<plugin> | |
<groupId>org.apache.maven.plugins</groupId> | |
<artifactId>maven-compiler-plugin</artifactId> | |
<configuration> | |
<source>8</source> | |
<target>8</target> | |
</configuration> | |
</plugin> | |
</plugins> | |
</build> | |
<name>${artifactId}</name> | |
<description>${artifactId}</description> | |
<properties> | |
<java.version>11</java.version> | |
</properties> | |
<dependencies> | |
<dependency> | |
<groupId>org.springframework</groupId> | |
<artifactId>spring-context</artifactId> | |
<version>5.3.11</version> | |
</dependency> | |
<dependency> | |
<groupId>com.hazelcast.jet</groupId> | |
<artifactId>hazelcast-jet-spring</artifactId> | |
<version>4.5.1</version> | |
</dependency> | |
<dependency> | |
<groupId>org.junit.jupiter</groupId> | |
<artifactId>junit-jupiter-api</artifactId> | |
<version>5.8.1</version> | |
<scope>test</scope> | |
</dependency> | |
</dependencies> | |
</project> |
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token=TWENTY | |
replacement=FIFTY |
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