Examples of org.springframework.batch.core.step.tasklet.TaskletStep

Package org.springframework.batch.core.step.tasklet

Examples of org.springframework.batch.core.step.tasklet.TaskletStep

org.springframework.batch.core.step.tasklet.TaskletStep
Simple implementation of executing the step as a call to a {@link Tasklet}, possibly repeated, and each call surrounded by a transaction. The structure is therefore that of a loop with transaction boundary inside the loop. The loop is controlled by the step operations ( {@link #setStepOperations(RepeatOperations)}).

Clients can use interceptors in the step operations to intercept or listen to the iteration on a step-wide basis, for instance to get a callback when the step is complete. Those that want callbacks at the level of an individual tasks, can specify interceptors for the chunk operations. @author Dave Syer @author Lucas Ward @author Ben Hale @author Robert Kasanicky @author Michael Minella @author Will Schipp

  }


  @Test
  public void testGetStepNamesFromStepLocator() throws Exception {
    SimpleJob job = new SimpleJob("job");
    job.addStep(new TaskletStep("foo"));
    EasyMock.expect(jobLocator.getJob("job")).andReturn(job);
    EasyMock.replay(jobLocator);
    Collection<String> result = service.getStepNamesForJob("job");
    assertNotNull(result);
    assertEquals("[foo]", result.toString());

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   */
  public TaskletStep build() {


    registerStepListenerAsChunkListener();


    TaskletStep step = new TaskletStep(getName());


    super.enhance(step);


    step.setChunkListeners(chunkListeners.toArray(new ChunkListener[0]));


    if (transactionAttribute != null) {
      step.setTransactionAttribute(transactionAttribute);
    }


    if (stepOperations == null) {


      stepOperations = new RepeatTemplate();


      if (taskExecutor != null) {
        TaskExecutorRepeatTemplate repeatTemplate = new TaskExecutorRepeatTemplate();
        repeatTemplate.setTaskExecutor(taskExecutor);
        repeatTemplate.setThrottleLimit(throttleLimit);
        stepOperations = repeatTemplate;
      }


      ((RepeatTemplate) stepOperations).setExceptionHandler(exceptionHandler);


    }
    step.setStepOperations(stepOperations);
    step.setTasklet(createTasklet());


    step.setStreams(streams.toArray(new ItemStream[0]));


    try {
      step.afterPropertiesSet();
    }
    catch (Exception e) {
      throw new StepBuilderException(e);
    }

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  @Test
  public void testStopTasklet() throws Exception {
    JobInstance jobInstance = new JobInstance(123L, job.getName());
    JobExecution jobExecution = new JobExecution(jobInstance, 111L, jobParameters, null);
    StoppableTasklet tasklet = mock(StoppableTasklet.class);
    TaskletStep taskletStep = new TaskletStep();
    taskletStep.setTasklet(tasklet);
    MockJob job = new MockJob();
    job.taskletStep = taskletStep;


    JobRegistry jobRegistry = mock(JobRegistry.class);
    TaskletStep step = mock(TaskletStep.class);


    when(step.getTasklet()).thenReturn(tasklet);
    when(step.getName()).thenReturn("test_job.step1");
    when(jobRegistry.getJob(anyString())).thenReturn(job);
    when(jobExplorer.getJobExecution(111L)).thenReturn(jobExecution);


    jobOperator.setJobRegistry(jobRegistry);
    jobExplorer.getJobExecution(111L);

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      @Override
      public void stop() {
        throw new IllegalStateException();
      }};
      TaskletStep taskletStep = new TaskletStep();
      taskletStep.setTasklet(tasklet);
      MockJob job = new MockJob();
      job.taskletStep = taskletStep;


      JobRegistry jobRegistry = mock(JobRegistry.class);
      TaskletStep step = mock(TaskletStep.class);


      when(step.getTasklet()).thenReturn(tasklet);
      when(step.getName()).thenReturn("test_job.step1");
      when(jobRegistry.getJob(anyString())).thenReturn(job);
      when(jobExplorer.getJobExecution(111L)).thenReturn(jobExecution);


      jobOperator.setJobRegistry(jobRegistry);
      jobExplorer.getJobExecution(111L);

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        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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        // 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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    protected StepRegistry createRegistry() {
        return new MapStepRegistry();
    }


    protected Step createStep(String stepName) {
        return new TaskletStep(stepName);
    }

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    @SuppressWarnings({ "rawtypes" })
    Map<String, StepParserStepFactoryBean> beans = ctx.getBeansOfType(StepParserStepFactoryBean.class);
    String factoryName = (String) beans.keySet().toArray()[0];
    @SuppressWarnings("unchecked")
    StepParserStepFactoryBean<Object, Object> factory = beans.get(factoryName);
    TaskletStep bean = (TaskletStep) factory.getObject();
    assertEquals("wrong start-limit:", 25, bean.getStartLimit());
    Object throttleLimit = ReflectionTestUtils.getField(factory, "throttleLimit");
    assertEquals(new Integer(10), throttleLimit);
  }

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  static JobInterruptedException interruptedException = new JobInterruptedException("");


  @Before
  public void init() {
    taskletStep = new TaskletStep();
    taskletStep.setTasklet(new ExceptionTasklet());
    jobRepository = new UpdateCountingJobRepository();
    taskletStep.setJobRepository(jobRepository);
    taskletStep.setTransactionManager(new ResourcelessTransactionManager());

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    jobLauncher.setJobRepository(jobRepository);
    jobLauncher.setTaskExecutor(new SimpleAsyncTaskExecutor());
    jobLauncher.afterPropertiesSet();


    SimpleJob job = new SimpleJob("job");
    TaskletStep step = new TaskletStep("step");
    step.setTasklet(new Tasklet() {
      @Override
      public RepeatStatus execute(StepContribution contribution, ChunkContext chunkContext) throws Exception {
        while (block) {
          Thread.sleep(100L);
        }
        return RepeatStatus.FINISHED;
      }
    });
    step.setTransactionManager(repositoryFactory.getTransactionManager());
    step.setJobRepository(jobRepository);
    step.afterPropertiesSet();
    job.addStep(step);
    job.setJobRepository(jobRepository);
    job.afterPropertiesSet();


    jobLauncher.run(job, new JobParametersBuilder().addString("test", getClass().getName()).toJobParameters());

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Related Classes of org.springframework.batch.core.step.tasklet.TaskletStep

org.springframework.batch.admin.service.SimpleJobServiceTests

org.springframework.batch.core.configuration.support.MapStepRegistryTests

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

org.springframework.batch.core.configuration.xml.StepParserTests

org.springframework.batch.core.explore.support.MapJobExplorerIntegrationTests

org.springframework.batch.core.launch.support.SimpleJobOperatorTests

org.springframework.batch.core.partition.support.SimpleStepExecutionSplitterTests

org.springframework.batch.core.scope.context.StepContextRepeatCallback

org.springframework.batch.core.step.builder.AbstractTaskletStepBuilder

org.springframework.batch.core.step.builder.StepBuilderHelper

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