public HandleStatus handle(final MessageReference ref) throws Exception {
if (availableCredits != null && availableCredits.get() <= 0) {
if (HornetQServerLogger.LOGGER.isDebugEnabled()) {
HornetQServerLogger.LOGGER.debug(
this
+ " is busy for the lack of credits. Current credits = "
+ availableCredits
+ " Can't receive reference "
+ ref);
}
return HandleStatus.BUSY;
}
// TODO - https://jira.jboss.org/browse/HORNETQ-533
// if (!writeReady.get())
// {
// return HandleStatus.BUSY;
// }
synchronized (lock) {
// If the consumer is stopped then we don't accept the message, it
// should go back into the
// queue for delivery later.
if (!started || transferring) {
return HandleStatus.BUSY;
}
// If there is a pendingLargeMessage we can't take another message
// This has to be checked inside the lock as the set to null is done inside the lock
if (largeMessageDeliverer != null) {
if (HornetQServerLogger.LOGGER.isDebugEnabled()) {
HornetQServerLogger.LOGGER.debug(
this
+ " is busy delivering large message "
+ largeMessageDeliverer
+ ", can't deliver reference "
+ ref);
}
return HandleStatus.BUSY;
}
final ServerMessage message = ref.getMessage();
if (filter != null && !filter.match(message)) {
if (HornetQServerLogger.LOGGER.isTraceEnabled()) {
HornetQServerLogger.LOGGER.trace(
"Reference " + ref + " is a noMatch on consumer " + this);
}
return HandleStatus.NO_MATCH;
}
if (HornetQServerLogger.LOGGER.isTraceEnabled()) {
HornetQServerLogger.LOGGER.trace("Handling reference " + ref);
}
if (!browseOnly) {
if (!preAcknowledge) {
deliveringRefs.add(ref);
}
ref.handled();
ref.incrementDeliveryCount();
// If updateDeliveries = false (set by strict-update),
// the updateDeliveryCount would still be updated after c
if (strictUpdateDeliveryCount && !ref.isPaged()) {
if (ref.getMessage().isDurable()
&& ref.getQueue().isDurable()
&& !ref.getQueue().isInternalQueue()
&& !ref.isPaged()) {
storageManager.updateDeliveryCount(ref);
}
}
if (preAcknowledge) {
if (message.isLargeMessage()) {
// we must hold one reference, or the file will be deleted before it could be delivered
((LargeServerMessage) message).incrementDelayDeletionCount();
}
// With pre-ack, we ack *before* sending to the client
ref.getQueue().acknowledge(ref);
}
}
if (message.isLargeMessage()) {
largeMessageDeliverer = new LargeMessageDeliverer((LargeServerMessage) message, ref);
}
lockDelivery.readLock().lock();
return HandleStatus.HANDLED;
}
}
