Example usage for org.springframework.batch.core.step.tasklet TaskletStep TaskletStep

Introduction

In this page you can find the example usage for org.springframework.batch.core.step.tasklet TaskletStep TaskletStep.

Prototype

public TaskletStep(String name) 

Source Link

Usage

From source file:org.springframework.batch.core.step.item.SimpleStepFactoryBean.java

/**
 * Create a {@link Step} from the configuration provided.
 * /*from ww  w  . j a v  a  2s  . c om*/
 * @see FactoryBean#getObject()
 */
public final Object getObject() throws Exception {
    TaskletStep step = new TaskletStep(getName());
    applyConfiguration(step);
    step.afterPropertiesSet();
    return step;
}

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From source file:org.springframework.batch.core.step.tasklet.AsyncChunkOrientedStepIntegrationTests.java

@Before
public void init() throws Exception {

    maxActive = dataSource.getMaxActive();
    maxIdle = dataSource.getMaxIdle();/*from   www .ja v a 2 s.  co  m*/

    // Force deadlock with batch waiting for DB pool and vice versa
    dataSource.setMaxActive(1);
    dataSource.setMaxIdle(1);

    step = new TaskletStep("stepName");
    step.setJobRepository(jobRepository);
    step.setTransactionManager(transactionManager);

    // Only process one item:
    chunkOperations = new RepeatTemplate();
    chunkOperations.setCompletionPolicy(new SimpleCompletionPolicy(1));

    job = new JobSupport("FOO");

    TaskExecutorRepeatTemplate repeatTemplate = new TaskExecutorRepeatTemplate();
    repeatTemplate.setThrottleLimit(2);
    repeatTemplate.setTaskExecutor(new SimpleAsyncTaskExecutor());
    step.setStepOperations(repeatTemplate);
    step.setTransactionManager(transactionManager);
}

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From source file:org.springframework.batch.core.step.tasklet.AsyncTaskletStepTests.java

private void setUp() throws Exception {

    step = new TaskletStep("stepName");

    ResourcelessTransactionManager transactionManager = new ResourcelessTransactionManager();
    step.setTransactionManager(transactionManager);

    RepeatTemplate chunkTemplate = new RepeatTemplate();
    chunkTemplate.setCompletionPolicy(new SimpleCompletionPolicy(2));
    step.setTasklet(new TestingChunkOrientedTasklet<String>(new ListItemReader<String>(items), itemProcessor,
            itemWriter, chunkTemplate));

    jobRepository = new JobRepositorySupport();
    step.setJobRepository(jobRepository);

    TaskExecutorRepeatTemplate template = new TaskExecutorRepeatTemplate();
    template.setThrottleLimit(throttleLimit);
    SimpleAsyncTaskExecutor taskExecutor = new SimpleAsyncTaskExecutor();
    taskExecutor.setConcurrencyLimit(concurrencyLimit);
    template.setTaskExecutor(taskExecutor);
    step.setStepOperations(template);//from  w  ww  .j a v  a  2 s. c  o  m

    step.registerStream(new ItemStreamSupport() {
        private int count = 0;

        @Override
        public void update(ExecutionContext executionContext) {
            super.update(executionContext);
            executionContext.putInt("counter", count++);
        }
    });

}

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From source file:org.springframework.data.hadoop.admin.util.HadoopWorkflowUtils.java

/**
 * create and register Spring Batch job//from w  ww  .ja  v a 2s  .c  o  m
 * 
 * @param context root application context
 * @param artifacts workflow artifacts which include workflow descriptor and class loader information.
 * @throws Exception
 */
public static void createAndRegisterSpringBatchJob(ApplicationContext context,
        final WorkflowArtifacts artifacts) throws SpringHadoopAdminWorkflowException {
    if (context == null) {
        logger.warn("root applicaton context is null");
        throw new SpringHadoopAdminWorkflowException("root applicaton context is null");
    }
    String workflowDescriptor = getWorkflowDescriptor(artifacts);
    logger.info("create spring batch job:" + workflowDescriptor + ", classloader:"
            + artifacts.getWorkflowClassLoader());

    final FileSystemXmlApplicationContext ctx = new FileSystemXmlApplicationContext();
    ctx.setClassLoader(artifacts.getWorkflowClassLoader());
    ctx.setConfigLocation(HadoopWorkflowUtils.fileURLPrefix + workflowDescriptor);

    try {
        SimpleJob job = new SimpleJob(generateSpringBatchJobName(artifacts));
        TaskletStep step = new TaskletStep(springHadoopTaskName);
        SimpleSpringHadoopTasklet tasklet = new SimpleSpringHadoopTasklet();
        tasklet.setContext(ctx);
        step.setTasklet(tasklet);
        JobRepository jobRepository = context.getBean(JobRepository.class);
        DataSourceTransactionManager transactionManager = context.getBean("transactionManager",
                DataSourceTransactionManager.class);
        step.setTransactionManager(transactionManager);
        step.setJobRepository(jobRepository);
        step.afterPropertiesSet();
        job.addStep(step);
        JobRegistry jobRegistry = context.getBean("jobRegistry", JobRegistry.class);
        job.setJobRepository(jobRepository);
        job.afterPropertiesSet();
        JobFactory jobFactory = new ReferenceJobFactory(job);
        jobRegistry.register(jobFactory);
    } catch (Exception e) {
        logger.warn("create and register Spring Batch Job failed");
        throw new SpringHadoopAdminWorkflowException("create and register Spring Batch Job failed", e);
    }
}

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