Example usage for org.springframework.integration.store MessageGroup getLastReleasedMessageSequenceNumber

Introduction

In this page you can find the example usage for org.springframework.integration.store MessageGroup getLastReleasedMessageSequenceNumber.

Prototype

int getLastReleasedMessageSequenceNumber();

Source Link

Usage

From source file:org.springframework.integration.aggregator.SequenceSizeReleaseStrategy.java

public boolean canRelease(MessageGroup messageGroup) {

    boolean canRelease = false;

    Collection<Message<?>> messages = messageGroup.getMessages();

    if (releasePartialSequences && !messages.isEmpty()) {

        if (logger.isTraceEnabled()) {
            logger.trace("Considering partial release of group [" + messageGroup + "]");
        }/* w  w w  .  j  av  a  2 s . co  m*/
        List<Message<?>> sorted = new ArrayList<Message<?>>(messages);
        Collections.sort(sorted, comparator);

        int nextSequenceNumber = sorted.get(0).getHeaders().getSequenceNumber();
        int lastReleasedMessageSequence = messageGroup.getLastReleasedMessageSequenceNumber();

        if (nextSequenceNumber - lastReleasedMessageSequence == 1) {
            canRelease = true;
            ;
        }
    } else {
        int size = messages.size();

        if (size == 0) {
            canRelease = true;
        } else {
            int sequenceSize = messageGroup.getOne().getHeaders().getSequenceSize();
            // If there is no sequence then it must be incomplete....
            if (sequenceSize == size) {
                canRelease = true;
            }
        }
    }
    return canRelease;
}

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From source file:org.springframework.integration.jdbc.JdbcMessageStoreTests.java

@Test
@Transactional//www. ja v a2  s .c  om
public void testUpdateLastReleasedSequence() throws Exception {
    String groupId = "X";
    Message<String> message = MessageBuilder.withPayload("foo").setCorrelationId(groupId).build();
    messageStore.addMessageToGroup(groupId, message);
    messageStore.setLastReleasedSequenceNumberForGroup(groupId, 5);
    MessageGroup group = messageStore.getMessageGroup(groupId);
    assertEquals(5, group.getLastReleasedMessageSequenceNumber());
}

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