Example usage for org.springframework.batch.integration.chunk ChunkResponse getStepContribution

Introduction

In this page you can find the example usage for org.springframework.batch.integration.chunk ChunkResponse getStepContribution.

Prototype

public StepContribution getStepContribution() 

Source Link

Usage

From source file:es.fcs.batch.integration.chunk.MyChunkMessageChannelItemWriter.java

/**
 * Get the next result if it is available (within the timeout specified in the gateway), otherwise do nothing.
 * //from  w  ww  .j a v  a  2 s. com
 * @throws AsynchronousFailureException If there is a response and it contains a failed chunk response.
 * 
 * @throws IllegalStateException if the result contains the wrong job instance id (maybe we are sharing a channel
 * and we shouldn't be)
 */
private void getNextResult() throws AsynchronousFailureException {
    ChunkResponse payload = (ChunkResponse) messagingGateway.receive();
    if (payload != null) {
        if (logger.isDebugEnabled()) {
            logger.debug("Found result: " + payload);
        }
        Long jobInstanceId = payload.getJobId();
        Assert.state(jobInstanceId != null, "Message did not contain job instance id.");
        Assert.state(jobInstanceId.equals(localState.getJobId()), "Message contained wrong job instance id ["
                + jobInstanceId + "] should have been [" + localState.getJobId() + "].");
        if (payload.isRedelivered()) {
            logger.warn(
                    "Redelivered result detected, which may indicate stale state. In the best case, we just picked up a timed out message "
                            + "from a previous failed execution. In the worst case (and if this is not a restart), "
                            + "the step may now timeout.  In that case if you believe that all messages "
                            + "from workers have been sent, the business state "
                            + "is probably inconsistent, and the step will fail.");
            localState.incrementRedelivered();
        }
        localState.pushStepContribution(payload.getStepContribution());
        localState.incrementActual();
        if (!payload.isSuccessful()) {
            throw new AsynchronousFailureException(
                    "Failure or interrupt detected in handler: " + payload.getMessage());
        }
    }
}

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From source file:org.springframework.batch.integration.chunk.ChunkMessageChannelItemWriter.java

public Collection<StepContribution> getStepContributions() {
    List<StepContribution> contributions = new ArrayList<StepContribution>();
    for (ChunkResponse response : localState.pollChunkResponses()) {
        StepContribution contribution = response.getStepContribution();
        if (logger.isDebugEnabled()) {
            logger.debug("Applying: " + response);
        }//from  w  w w  .  j a v a  2  s .  com
        contributions.add(contribution);
    }
    return contributions;
}

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From source file:org.springframework.batch.integration.chunk.ChunkResponseTests.java

@Test
public void testSerializable() throws Exception {
    ChunkResponse result = (ChunkResponse) SerializationUtils
            .deserialize(SerializationUtils.serialize(response));
    assertNotNull(result.getStepContribution());
    assertEquals(new Long(111L), result.getJobId());
}

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