protected String getId(Object obj) {
UMOEvent event = (UMOEvent) obj;
return event.getId();
}
private UMOMessage dispatchMessage(UMOEvent event) throws Exception {
Session session = null;
MessageProducer producer = null;
MessageConsumer consumer = null;
Destination replyTo = null;
boolean transacted = false;
boolean cached = false;
boolean remoteSync = useRemoteSync(event);
if (logger.isDebugEnabled()) {
logger.debug(
"dispatching on endpoint: "
+ event.getEndpoint().getEndpointURI()
+ ". Event id is: "
+ event.getId());
}
try {
// Retrieve the session from the current transaction.
session = connector.getSessionFromTransaction();
if (session != null) {
transacted = true;
// If a transaction is running, we can not receive any messages
// in the same transaction.
if (remoteSync) {
throw new IllegalTransactionStateException(new org.mule.config.i18n.Message("jms", 2));
}
}
// Should we be caching sessions? Note this is not part of the JMS spec.
// and is turned off by default.
else if (event
.getMessage()
.getBooleanProperty(
JmsConstants.CACHE_JMS_SESSIONS_PROPERTY, connector.isCacheJmsSessions())) {
cached = true;
if (cachedSession != null) {
session = cachedSession;
} else {
// Retrieve a session from the connector
session = connector.getSession(event.getEndpoint());
cachedSession = session;
}
} else {
// Retrieve a session from the connector
session = connector.getSession(event.getEndpoint());
if (event.getEndpoint().getTransactionConfig().isTransacted()) {
transacted = true;
}
}
// Add a reference to the JMS session used so that an EventAwareTransformer
// can later retrieve it.
// TODO Figure out a better way to accomplish this: MULE-1079
// event.getMessage().setProperty(MuleProperties.MULE_JMS_SESSION, session);
UMOEndpointURI endpointUri = event.getEndpoint().getEndpointURI();
// determine if endpointUri is a queue or topic
// the format is topic:destination
boolean topic = false;
String resourceInfo = endpointUri.getResourceInfo();
topic = (resourceInfo != null && JmsConstants.TOPIC_PROPERTY.equalsIgnoreCase(resourceInfo));
// TODO MULE20 remove resource info support
if (!topic) {
topic =
MapUtils.getBooleanValue(
event.getEndpoint().getProperties(), JmsConstants.TOPIC_PROPERTY, false);
}
Destination dest =
connector.getJmsSupport().createDestination(session, endpointUri.getAddress(), topic);
producer = connector.getJmsSupport().createProducer(session, dest, topic);
Object message = event.getTransformedMessage();
if (!(message instanceof Message)) {
throw new DispatchException(
new org.mule.config.i18n.Message(
Messages.MESSAGE_NOT_X_IT_IS_TYPE_X_CHECK_TRANSFORMER_ON_X,
"JMS message",
message.getClass().getName(),
connector.getName()),
event.getMessage(),
event.getEndpoint());
}
Message msg = (Message) message;
if (event.getMessage().getCorrelationId() != null) {
msg.setJMSCorrelationID(event.getMessage().getCorrelationId());
}
UMOMessage eventMsg = event.getMessage();
// Some JMS implementations might not support the ReplyTo property.
if (connector.supportsProperty(JmsConstants.JMS_REPLY_TO)) {
Object tempReplyTo = eventMsg.removeProperty(JmsConstants.JMS_REPLY_TO);
if (tempReplyTo != null) {
if (tempReplyTo instanceof Destination) {
replyTo = (Destination) tempReplyTo;
} else {
boolean replyToTopic = false;
String reply = tempReplyTo.toString();
int i = reply.indexOf(":");
if (i > -1) {
String qtype = reply.substring(0, i);
replyToTopic = "topic".equalsIgnoreCase(qtype);
reply = reply.substring(i + 1);
}
replyTo = connector.getJmsSupport().createDestination(session, reply, replyToTopic);
}
}
// Are we going to wait for a return event ?
if (remoteSync && replyTo == null) {
replyTo = connector.getJmsSupport().createTemporaryDestination(session, topic);
}
// Set the replyTo property
if (replyTo != null) {
msg.setJMSReplyTo(replyTo);
}
// Are we going to wait for a return event ?
if (remoteSync) {
consumer = connector.getJmsSupport().createConsumer(session, replyTo, topic);
}
}
// QoS support
String ttlString = (String) eventMsg.removeProperty(JmsConstants.TIME_TO_LIVE_PROPERTY);
String priorityString = (String) eventMsg.removeProperty(JmsConstants.PRIORITY_PROPERTY);
String persistentDeliveryString =
(String) eventMsg.removeProperty(JmsConstants.PERSISTENT_DELIVERY_PROPERTY);
long ttl = Message.DEFAULT_TIME_TO_LIVE;
int priority = Message.DEFAULT_PRIORITY;
boolean persistent = Message.DEFAULT_DELIVERY_MODE == DeliveryMode.PERSISTENT;
if (ttlString != null) {
ttl = Long.parseLong(ttlString);
}
if (priorityString != null) {
priority = Integer.parseInt(priorityString);
}
if (persistentDeliveryString != null) {
persistent = Boolean.valueOf(persistentDeliveryString).booleanValue();
}
logger.debug("Sending message of type " + msg.getClass().getName());
if (consumer != null && topic) {
// need to register a listener for a topic
Latch l = new Latch();
ReplyToListener listener = new ReplyToListener(l);
consumer.setMessageListener(listener);
connector.getJmsSupport().send(producer, msg, persistent, priority, ttl, topic);
int timeout = event.getTimeout();
logger.debug("Waiting for return event for: " + timeout + " ms on " + replyTo);
l.await(timeout, TimeUnit.MILLISECONDS);
consumer.setMessageListener(null);
listener.release();
Message result = listener.getMessage();
if (result == null) {
logger.debug("No message was returned via replyTo destination");
return null;
} else {
UMOMessageAdapter adapter = connector.getMessageAdapter(result);
return new MuleMessage(JmsMessageUtils.getObjectForMessage(result), adapter);
}
} else {
connector.getJmsSupport().send(producer, msg, persistent, priority, ttl, topic);
if (consumer != null) {
int timeout = event.getTimeout();
logger.debug("Waiting for return event for: " + timeout + " ms on " + replyTo);
Message result = consumer.receive(timeout);
if (result == null) {
logger.debug("No message was returned via replyTo destination");
return null;
} else {
UMOMessageAdapter adapter = connector.getMessageAdapter(result);
return new MuleMessage(JmsMessageUtils.getObjectForMessage(result), adapter);
}
}
}
return null;
} finally {
connector.closeQuietly(consumer);
connector.closeQuietly(producer);
// TODO I wonder if those temporary destinations also implement BOTH interfaces...
// keep it 'simple' for now
if (replyTo != null
&& (replyTo instanceof TemporaryQueue || replyTo instanceof TemporaryTopic)) {
if (replyTo instanceof TemporaryQueue) {
connector.closeQuietly((TemporaryQueue) replyTo);
} else {
// hope there are no more non-standard tricks from jms vendors here ;)
connector.closeQuietly((TemporaryTopic) replyTo);
}
}
// If the session is from the current transaction, it is up to the
// transaction to close it.
if (session != null && !cached && !transacted) {
connector.closeQuietly(session);
}
}
}
