/*
* (non-Javadoc)
*
* @see org.mule.umo.provider.UMOConnector#registerListener(org.mule.umo.UMOSession,
* org.mule.umo.endpoint.UMOEndpoint)
*/
public UMOMessageReceiver createReceiver(UMOComponent component, UMOEndpoint endpoint)
throws Exception {
if (queueEvents) {
queueProfile.configureQueue(endpoint.getEndpointURI().getAddress());
}
return serviceDescriptor.createMessageReceiver(this, component, endpoint);
}
@Override
protected void doSetUp() throws Exception {
super.doSetUp();
queueProfile = QueueProfile.newInstancePersistingToDefaultMemoryQueueStore(muleContext);
queueStatistics = new TestQueueStatistics();
queueTimeout = muleContext.getConfiguration().getDefaultQueueTimeout();
lifeCycleState = new TestLifeCycleState();
super.doSetUp();
((Initialisable) messageProcessor).initialise();
((Startable) messageProcessor).start();
lifeCycleState.start();
}
@Test
public void customQueueSize() throws Exception {
int queueSize = 100;
queueProfile.setMaxOutstandingMessages(queueSize);
SedaStageInterceptingMessageProcessor mp;
mp =
new SedaStageInterceptingMessageProcessor(
"name",
"name",
queueProfile,
queueTimeout,
muleContext.getDefaultThreadingProfile(),
queueStatistics,
muleContext);
assertThat(mp.queueProfile.getMaxOutstandingMessages(), is(equalTo(queueSize)));
}
/**
* Initialise the service. The service will first create a Mule UMO from the UMODescriptor and
* then initialise a pool based on the attributes in the UMODescriptor.
*
* @throws org.mule.api.lifecycle.InitialisationException if the service fails to initialise
* @see org.mule.api.UMODescriptor
*/
protected synchronized void doInitialise() throws InitialisationException {
MuleConfiguration config = muleContext.getConfiguration();
if (threadingProfile == null) {
// TODO MULE-2102 This should be configured in the default template.
threadingProfile = muleContext.getDefaultComponentThreadingProfile();
}
// Create thread pool
workManager = threadingProfile.createWorkManager(getName());
if (queueProfile == null) {
// TODO MULE-2102 This should be configured in the default template.
queueProfile = ((SedaModel) model).getQueueProfile();
}
if (queueTimeout == null) {
// TODO MULE-2102 This should be configured in the default template.
setQueueTimeout(new Integer(((SedaModel) model).getQueueTimeout()));
}
try {
if (name == null) {
throw new InitialisationException(
MessageFactory.createStaticMessage("Service has no name to identify it"), this);
}
// Setup event Queue (used for VM execution). The queue has the same name as the service.
queueProfile.configureQueue(name, muleContext.getQueueManager());
queue = muleContext.getQueueManager().getQueueSession().getQueue(name);
if (queue == null) {
throw new InitialisationException(
MessageFactory.createStaticMessage(
"Queue " + name + " not created for service " + name),
this);
}
} catch (InitialisationException e) {
throw e;
} catch (Throwable e) {
throw new InitialisationException(
CoreMessages.objectFailedToInitialise("Service Queue"), e, this);
}
}
/**
* While the service isn't stopped this runs a continuous loop checking for new events in the
* queue.
*/
public void run() {
DefaultMuleEvent event = null;
QueueSession queueSession = muleContext.getQueueManager().getQueueSession();
while (!stopped.get()) {
try {
// Wait if the service is paused
if (paused.get()) {
paused.whenFalse(null);
// If service is resumed as part of stopping
if (stopping.get()) {
if (!queueProfile.isPersistent() && (queueSession != null && getQueueSize() > 0)) {
// Any messages in a non-persistent queue went paused service is stopped are lost
logger.warn(
CoreMessages.stopPausedSedaServiceNonPeristentQueueMessageLoss(
getQueueSize(), this));
}
stopping.set(false);
break;
}
}
// If we're doing a draining stop, read all events from the queue
// before stopping
if (stopping.get()) {
if (queueProfile.isPersistent() || (queueSession == null || getQueueSize() <= 0)) {
stopping.set(false);
break;
}
}
if (stats.isEnabled()) {
synchronized (queueStatsGuard) {
event = (DefaultMuleEvent) dequeue();
if (event != null) {
stats.decQueuedEvent();
}
}
} else {
// just dequeue without any hit for synchronization
event = (DefaultMuleEvent) dequeue();
}
if (event != null) {
if (logger.isDebugEnabled()) {
logger.debug(
MessageFormat.format(
"Service: {0} dequeued event on: {1}",
name, event.getEndpoint().getEndpointURI()));
}
workManager.scheduleWork(
new ComponentStageWorker(event), WorkManager.INDEFINITE, null, this);
}
} catch (Exception e) {
if (e instanceof InterruptedException) {
stopping.set(false);
break;
}
if (e instanceof MuleException) {
handleException(e);
} else {
handleException(
new ServiceException(
CoreMessages.eventProcessingFailedFor(name),
(event == null ? null : event.getMessage()),
this,
e));
}
}
}
}