Examples of org.springframework.batch.core.Step

org.springframework.batch.core.Step
Batch domain interface representing the configuration of a step. As with the {@link Job}, a {@link Step} is meant toexplicitly represent the configuration of a step by a developer, but also the ability to execute the step. @author Dave Syer

  public void testVanillaIteration() throws Exception {


    factory.setItemReader(new ListItemReader<String>(Arrays.asList(StringUtils
        .commaDelimitedListToStringArray("1,2,3,4,5,6"))));


    Step step = (Step) factory.getObject();


    StepExecution stepExecution = getStepExecution(step);
    step.execute(stepExecution);


    waitForResults(6, 10);


    assertEquals(6, TestItemWriter.count);
    assertEquals(6, stepExecution.getReadCount());

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  public void testSimulatedRestart() throws Exception {


    factory.setItemReader(new ListItemReader<String>(Arrays.asList(StringUtils
        .commaDelimitedListToStringArray("1,2,3,4,5,6"))));


    Step step = (Step) factory.getObject();


    StepExecution stepExecution = getStepExecution(step);


    // Set up context with two messages (chunks) in the backlog
    stepExecution.getExecutionContext().putInt(ChunkMessageChannelItemWriter.EXPECTED, 6);
    stepExecution.getExecutionContext().putInt(ChunkMessageChannelItemWriter.ACTUAL, 4);
    // And make the back log real
    requests.send(getSimpleMessage("foo", stepExecution.getJobExecution().getJobId()));
    requests.send(getSimpleMessage("bar", stepExecution.getJobExecution().getJobId()));
    step.execute(stepExecution);


    waitForResults(8, 10);


    assertEquals(8, TestItemWriter.count);
    assertEquals(6, stepExecution.getReadCount());

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  public void testSimulatedRestartWithBadMessagesFromAnotherJob() throws Exception {


    factory.setItemReader(new ListItemReader<String>(Arrays.asList(StringUtils
        .commaDelimitedListToStringArray("1,2,3,4,5,6"))));


    Step step = (Step) factory.getObject();


    StepExecution stepExecution = getStepExecution(step);


    // Set up context with two messages (chunks) in the backlog
    stepExecution.getExecutionContext().putInt(ChunkMessageChannelItemWriter.EXPECTED, 3);
    stepExecution.getExecutionContext().putInt(ChunkMessageChannelItemWriter.ACTUAL, 2);


    // Speed up the eventual failure
    writer.setMaxWaitTimeouts(2);


    // And make the back log real
    requests.send(getSimpleMessage("foo", 4321L));
    step.execute(stepExecution);
    assertEquals(BatchStatus.FAILED, stepExecution.getStatus());
    assertEquals(ExitStatus.FAILED.getExitCode(), stepExecution.getExitStatus().getExitCode());
    String message = stepExecution.getExitStatus().getExitDescription();
    assertTrue("Message does not contain 'wrong job': " + message, message.contains("wrong job"));

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    factory.setItemReader(new ListItemReader<String>(Arrays.asList(StringUtils
        .commaDelimitedListToStringArray("1,fail,3,4,5,6"))));
    factory.setCommitInterval(2);


    Step step = (Step) factory.getObject();


    StepExecution stepExecution = getStepExecution(step);
    step.execute(stepExecution);
    assertEquals(BatchStatus.FAILED, stepExecution.getStatus());
    assertEquals(ExitStatus.FAILED.getExitCode(), stepExecution.getExitStatus().getExitCode());
    String message = stepExecution.getExitStatus().getExitDescription();
    assertTrue("Message does not contain 'fail': " + message, message.contains("fail"));

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  public void testSimulatedRestartWithNoBacklog() throws Exception {


    factory.setItemReader(new ListItemReader<String>(Arrays.asList(StringUtils
        .commaDelimitedListToStringArray("1,2,3,4,5,6"))));


    Step step = (Step) factory.getObject();


    StepExecution stepExecution = getStepExecution(step);


    // Set up expectation of three messages (chunks) in the backlog
    stepExecution.getExecutionContext().putInt(ChunkMessageChannelItemWriter.EXPECTED, 6);
    stepExecution.getExecutionContext().putInt(ChunkMessageChannelItemWriter.ACTUAL, 3);


    writer.setMaxWaitTimeouts(2);


    /*
     * With no backlog we process all the items, but the listener can't
     * reconcile the expected number of items with the actual. An infinite
     * loop would be bad, so the best we can do is fail as fast as possible.
     */
    step.execute(stepExecution);
    assertEquals(BatchStatus.FAILED, stepExecution.getStatus());
    assertEquals(ExitStatus.FAILED.getExitCode(), stepExecution.getExitStatus().getExitCode());
    String message = stepExecution.getExitStatus().getExitDescription();
    assertTrue("Message did not contain 'timed out': " + message, message.toLowerCase().contains("timed out"));

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  public void testFailureInStepListener() throws Exception {


    factory.setItemReader(new ListItemReader<String>(Arrays.asList(StringUtils
        .commaDelimitedListToStringArray("wait,fail,3,4,5,6"))));


    Step step = (Step) factory.getObject();


    StepExecution stepExecution = getStepExecution(step);
    step.execute(stepExecution);


    waitForResults(2, 10);


    // The number of items processed is actually between 1 and 6, because
    // the one that failed might have been processed out of order.

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  public void testVanillaIteration() throws Exception {


    factory.setItemReader(new ListItemReader<String>(Arrays.asList(StringUtils
        .commaDelimitedListToStringArray("1,2,3,4,5,6"))));


    Step step = factory.getObject();


    StepExecution stepExecution = getStepExecution(step);
    step.execute(stepExecution);


    waitForResults(6, 10);


    assertEquals(6, TestItemWriter.count);
    assertEquals(6, stepExecution.getReadCount());

View Full Code Here

  public void testSimulatedRestart() throws Exception {


    factory.setItemReader(new ListItemReader<String>(Arrays.asList(StringUtils
        .commaDelimitedListToStringArray("1,2,3,4,5,6"))));


    Step step = factory.getObject();


    StepExecution stepExecution = getStepExecution(step);


    // Set up context with two messages (chunks) in the backlog
    stepExecution.getExecutionContext().putInt(ChunkMessageChannelItemWriter.EXPECTED, 6);
    stepExecution.getExecutionContext().putInt(ChunkMessageChannelItemWriter.ACTUAL, 4);
    // And make the back log real
    requests.send(getSimpleMessage("foo", stepExecution.getJobExecution().getJobId()));
    requests.send(getSimpleMessage("bar", stepExecution.getJobExecution().getJobId()));
    step.execute(stepExecution);


    waitForResults(8, 10);


    assertEquals(8, TestItemWriter.count);
    assertEquals(6, stepExecution.getReadCount());

View Full Code Here

  public void testSimulatedRestartWithBadMessagesFromAnotherJob() throws Exception {


    factory.setItemReader(new ListItemReader<String>(Arrays.asList(StringUtils
        .commaDelimitedListToStringArray("1,2,3,4,5,6"))));


    Step step = factory.getObject();


    StepExecution stepExecution = getStepExecution(step);


    // Set up context with two messages (chunks) in the backlog
    stepExecution.getExecutionContext().putInt(ChunkMessageChannelItemWriter.EXPECTED, 3);
    stepExecution.getExecutionContext().putInt(ChunkMessageChannelItemWriter.ACTUAL, 2);


    // Speed up the eventual failure
    writer.setMaxWaitTimeouts(2);


    // And make the back log real
    requests.send(getSimpleMessage("foo", 4321L));
    step.execute(stepExecution);
    assertEquals(BatchStatus.FAILED, stepExecution.getStatus());
    assertEquals(ExitStatus.FAILED.getExitCode(), stepExecution.getExitStatus().getExitCode());
    String message = stepExecution.getExitStatus().getExitDescription();
    assertTrue("Message does not contain 'wrong job': " + message, message.contains("wrong job"));

View Full Code Here


    factory.setItemReader(new ListItemReader<String>(Arrays.asList(StringUtils
        .commaDelimitedListToStringArray("1,fail,3,4,5,6"))));
    factory.setCommitInterval(2);


    Step step = factory.getObject();


    StepExecution stepExecution = getStepExecution(step);
    step.execute(stepExecution);
    assertEquals(BatchStatus.FAILED, stepExecution.getStatus());
    assertEquals(ExitStatus.FAILED.getExitCode(), stepExecution.getExitStatus().getExitCode());
    String message = stepExecution.getExitStatus().getExitDescription();
    assertTrue("Message does not contain 'fail': " + message, message.contains("fail"));

View Full Code Here

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