protected List getMessages() throws Exception {
QueueSession qs = connector.getQueueSession();
Queue queue = qs.getQueue(endpoint.getEndpointURI().getAddress());
UMOEvent event = (UMOEvent) queue.poll(connector.getQueueTimeout());
if (event != null) {
routeMessage(new MuleMessage(event.getTransformedMessage(), event.getMessage()));
}
return null;
}
protected void enqueue(MuleEvent event) throws Exception {
QueueSession session = muleContext.getQueueManager().getQueueSession();
Queue queue = session.getQueue(name);
if (queue == null) {
throw new InitialisationException(
MessageFactory.createStaticMessage("Queue " + name + " not created for service " + name),
this);
}
if (logger.isDebugEnabled()) {
logger.debug("Service " + name + " putting event on queue " + name + ": " + event);
}
queue.put(event);
}
public int getQueueSize() {
QueueSession session = muleContext.getQueueManager().getQueueSession();
Queue queue = session.getQueue(name);
if (queue == null) {
logger.warn(
new InitialisationException(
MessageFactory.createStaticMessage(
"Queue " + name + " not created for service " + name),
this));
return -1;
}
return queue.size();
}
protected void doConnect() throws Exception {
if (connector.isQueueEvents()) {
// Ensure we can create a vm queue
QueueSession queueSession = connector.getQueueSession();
Queue q = queueSession.getQueue(endpoint.getEndpointURI().getAddress());
if (logger.isDebugEnabled()) {
logger.debug(
"Current queue depth for queue: "
+ endpoint.getEndpointURI().getAddress()
+ " is: "
+ q.size());
}
}
}
public MessageExchange accept(long timeout) throws MessagingException {
if (this.closed) {
throw new MessagingException("Channel is closed");
}
try {
QueueSession qs = container.getQueueSession();
Queue queue = qs.getQueue(componentName);
MessageExchange me = (MessageExchange) queue.poll(timeout);
if (me != null) {
handleReceive(me);
}
return me;
} catch (InterruptedException e) {
throw new MessagingException(e);
}
}
/*
* (non-Javadoc)
*
* @see org.mule.umo.UMOEventListener#onEvent(org.mule.umo.UMOEvent)
*/
public void onEvent(UMOEvent event) throws UMOException {
if (connector.isQueueEvents()) {
QueueSession queueSession = connector.getQueueSession();
Queue queue = queueSession.getQueue(endpoint.getEndpointURI().getAddress());
try {
queue.put(event);
} catch (InterruptedException e) {
throw new MuleException(
CoreMessages.interruptedQueuingEventFor(this.endpoint.getEndpointURI()), e);
}
} else {
UMOMessage msg = new MuleMessage(event.getTransformedMessage(), event.getMessage());
synchronized (lock) {
routeMessage(msg);
}
}
}
protected void doRollback() throws TransactionException {
try {
if (resource != null) {
((QueueSession) resource).rollback();
}
} catch (ResourceManagerException e) {
throw new TransactionException(CoreMessages.transactionRollbackFailed(), e);
}
}
public void enqueue(MessageExchange exchange) throws MessagingException {
if (!(exchange instanceof MessageExchangeProxy)) {
throw new MessagingException("exchange should be created with MessageExchangeFactory");
}
MessageExchangeProxy me = (MessageExchangeProxy) exchange;
if (me.getSyncState() == MessageExchangeProxy.SYNC_STATE_SYNC_SENT) {
synchronized (me) {
me.setSyncState(MessageExchangeProxy.SYNC_STATE_SYNC_RECEIVED);
me.notify();
}
} else {
try {
QueueSession qs = container.getQueueSession();
Queue queue = qs.getQueue(componentName);
queue.put(me);
} catch (InterruptedException e) {
logger.error(e);
}
}
}
public void bindResource(Object key, Object resource) throws TransactionException {
if (!(key instanceof QueueManager) || !(resource instanceof QueueSession)) {
throw new IllegalTransactionStateException(
CoreMessages.transactionCanOnlyBindToResources("QueueManager/QueueSession"));
}
super.bindResource(key, resource);
try {
((QueueSession) resource).begin();
} catch (ResourceManagerException e) {
throw new TransactionException(CoreMessages.cannotStartTransaction("VMTransaction"), e);
}
}
