@Override
public void publish(EventMessage... events) {
final Channel channel = connectionFactory.createConnection().createChannel(isTransactional);
try {
for (EventMessage event : events) {
doSendMessage(
channel,
routingKeyResolver.resolveRoutingKey(event),
asByteArray(event),
isDurable ? DURABLE : null);
}
if (CurrentUnitOfWork.isStarted()) {
CurrentUnitOfWork.get().registerListener(new ChannelTransactionUnitOfWorkListener(channel));
} else if (isTransactional) {
channel.txCommit();
}
} catch (IOException e) {
if (isTransactional) {
tryRollback(channel);
}
throw new EventPublicationFailedException(
"Failed to dispatch Events to the Message Broker.", e);
} catch (ShutdownSignalException e) {
throw new EventPublicationFailedException(
"Failed to dispatch Events to the Message Broker.", e);
} finally {
if (!CurrentUnitOfWork.isStarted()) {
tryClose(channel);
}
}
}
@Override
public void afterCommit() {
if (isOpen) {
try {
if (isTransactional) {
channel.txCommit();
}
} catch (IOException e) {
logger.warn("Unable to commit transaction on channel.", e);
}
tryClose(channel);
}
}
@Override
protected <E> boolean transactionalPublishImpl(
Collection<E> messageBundles, TransportPublishProperties properties)
throws IOException, TimeoutException, InterruptedException {
channel.txSelect();
boolean rollback = true;
try {
for (E messageBundle : messageBundles) {
if (!publishImpl((AMQPMessageBundle) messageBundle, properties)) return false;
}
rollback = false;
} finally {
// ! Explicitly roll back.
if (rollback) channel.txRollback();
else channel.txCommit();
}
return !rollback;
}