Examples of org.springframework.batch.core.partition.support.TaskExecutorPartitionHandler

Package org.springframework.batch.core.partition.support

Examples of org.springframework.batch.core.partition.support.TaskExecutorPartitionHandler

org.springframework.batch.core.partition.support.TaskExecutorPartitionHandler
A {@link PartitionHandler} that uses a {@link TaskExecutor} to execute thepartitioned {@link Step} locally in multiple threads. This can be aneffective approach for scaling batch steps that are IO intensive, like directory and filesystem scanning and copying.
By default, the thread pool is synchronous. @author Sebastien Gerard @author Dave Syer @since 2.0


    if (partitionHandler != null) {
      step.setPartitionHandler(partitionHandler);
    }
    else {
      TaskExecutorPartitionHandler partitionHandler = new TaskExecutorPartitionHandler();
      partitionHandler.setStep(this.step);
      if (taskExecutor == null) {
        taskExecutor = new SyncTaskExecutor();
      }
      partitionHandler.setGridSize(gridSize);
      partitionHandler.setTaskExecutor(taskExecutor);
      step.setPartitionHandler(partitionHandler);
    }


    if (splitter != null) {
      step.setStepExecutionSplitter(splitter);

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      // the partitioned step
      if (stepExecutionName.equalsIgnoreCase("j3s1")) {
        PartitionStep partitionStep = (PartitionStep) this.applicationContext.getBean(stepExecutionName);
        // prove that the reference in the {@link
        // TaskExecutorPartitionHandler} is the step configured inline
        TaskExecutorPartitionHandler taskExecutorPartitionHandler = accessPrivateField(partitionStep,
            "partitionHandler");
        TaskletStep taskletStep = accessPrivateField(taskExecutorPartitionHandler, "step");


        assertNotNull("the taskletStep wasn't configured with a step. "
            + "We're trusting that the factory ensured " + "a reference was given.", taskletStep);

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        // step
        PartitionStep partitionStep = (PartitionStep) this.applicationContext.getBean(stepExecutionName);


        // prove that the reference in the {@link
        // TaskExecutorPartitionHandler} is the step configured inline
        TaskExecutorPartitionHandler taskExecutorPartitionHandler = accessPrivateField(partitionStep,
            "partitionHandler");
        TaskletStep taskletStep = accessPrivateField(taskExecutorPartitionHandler, "step");


        assertNotNull("the taskletStep wasn't configured with a step. "
            + "We're trusting that the factory ensured " + "a reference was given.", taskletStep);

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    fb.setListeners(new StepListener[] { new StepExecutionListenerSupport() });
    fb.setTaskExecutor(new SyncTaskExecutor());


    SimplePartitioner partitioner = new SimplePartitioner();
    fb.setPartitioner(partitioner);
    TaskExecutorPartitionHandler partitionHandler = new TaskExecutorPartitionHandler();
    partitionHandler.setStep(new StepSupport("foo"));
    ProxyFactory factory = new ProxyFactory(partitionHandler);
    fb.setPartitionHandler((PartitionHandler) factory.getProxy());


    Object step = fb.getObject();
    assertTrue(step instanceof PartitionStep);

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    if (getPartitionHandler() != null) {
      step.setPartitionHandler(getPartitionHandler());
    }
    else {
      TaskExecutorPartitionHandler partitionHandler = new TaskExecutorPartitionHandler();
      partitionHandler.setStep(getStep());
      if (getTaskExecutor() == null) {
        taskExecutor(new SyncTaskExecutor());
      }
      partitionHandler.setGridSize(getGridSize());
      partitionHandler.setTaskExecutor(getTaskExecutor());
      step.setPartitionHandler(partitionHandler);
    }


    if (getSplitter() != null) {
      step.setStepExecutionSplitter(getSplitter());

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Related Classes of org.springframework.batch.core.partition.support.TaskExecutorPartitionHandler

org.springframework.batch.core.configuration.xml.PartitionStepParserTests

org.springframework.batch.core.configuration.xml.StepParserStepFactoryBeanTests

org.springframework.batch.core.ExitStatus

org.springframework.batch.core.jsr.step.builder.JsrPartitionStepBuilder

org.springframework.batch.core.step.builder.PartitionStepBuilder

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