private MuleMessage dispatchMessage(MuleEvent event) throws Exception {
Session session = null;
MessageProducer producer = null;
MessageConsumer consumer = null;
Destination replyTo = null;
boolean transacted = false;
boolean cached = false;
boolean useReplyToDestination;
final Transaction muleTx = TransactionCoordination.getInstance().getTransaction();
if (logger.isDebugEnabled()) {
logger.debug(
"dispatching on endpoint: "
+ event.getEndpoint().getEndpointURI()
+ ". MuleEvent id is: "
+ event.getId()
+ ". Outbound transformers are: "
+ event.getEndpoint().getTransformers());
}
// assume session is transacted first, and thus, managed
boolean sessionManaged = true;
try {
session = connector.getSessionFromTransaction();
if (session != null) {
transacted = true;
}
// 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())) {
sessionManaged = false;
cached = true;
if (cachedSession != null) {
session = cachedSession;
} else {
session = connector.getSession(event.getEndpoint());
cachedSession = session;
}
} else {
// by now we're running with a different connector and connection
sessionManaged = muleTx != null && muleTx.isXA();
session = connector.getSession(event.getEndpoint());
if (event.getEndpoint().getTransactionConfig().isTransacted()) {
transacted = true;
}
}
// If a transaction is running, we can not receive any messages
// in the same transaction using a replyTo destination
useReplyToDestination = returnResponse(event) && !transacted;
boolean topic = connector.getTopicResolver().isTopic(event.getEndpoint(), true);
Destination dest = connector.getJmsSupport().createDestination(session, endpoint);
producer = connector.getJmsSupport().createProducer(session, dest, topic);
preTransformMessage(event.getMessage());
Object message = event.transformMessage();
if (!(message instanceof Message)) {
throw new DispatchException(
JmsMessages.checkTransformer("JMS message", message.getClass(), connector.getName()),
event.getMessage(),
event.getEndpoint());
}
Message msg = (Message) message;
MuleMessage eventMsg = event.getMessage();
replyTo = getReplyToDestination(msg, session, event, useReplyToDestination, topic);
// Set the replyTo property
if (replyTo != null) {
msg.setJMSReplyTo(replyTo);
}
// Allow overrides to alter the message if necessary
processMessage(msg, event);
// 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 =
StringUtils.isNotBlank(ttlString)
? NumberUtils.toLong(ttlString)
: Message.DEFAULT_TIME_TO_LIVE;
int priority =
StringUtils.isNotBlank(priorityString)
? NumberUtils.toInt(priorityString)
: Message.DEFAULT_PRIORITY;
boolean persistent =
StringUtils.isNotBlank(persistentDeliveryString)
? BooleanUtils.toBoolean(persistentDeliveryString)
: connector.isPersistentDelivery();
// If we are honouring the current QoS message headers we need to use the ones set on the
// current message
if (connector.isHonorQosHeaders()) {
Object priorityProp = eventMsg.getProperty(JmsConstants.JMS_PRIORITY);
Object deliveryModeProp = eventMsg.getProperty(JmsConstants.JMS_DELIVERY_MODE);
if (priorityProp != null) {
priority = NumberUtils.toInt(priorityProp);
}
if (deliveryModeProp != null) {
persistent = NumberUtils.toInt(deliveryModeProp) == DeliveryMode.PERSISTENT;
}
}
if (logger.isDebugEnabled()) {
logger.debug("Sending message of type " + ClassUtils.getSimpleName(msg.getClass()));
logger.debug(
"Sending JMS Message type "
+ msg.getJMSType()
+ "\n JMSMessageID="
+ msg.getJMSMessageID()
+ "\n JMSCorrelationID="
+ msg.getJMSCorrelationID()
+ "\n JMSDeliveryMode="
+ (persistent ? DeliveryMode.PERSISTENT : DeliveryMode.NON_PERSISTENT)
+ "\n JMSPriority="
+ priority
+ "\n JMSReplyTo="
+ msg.getJMSReplyTo());
}
connector.getJmsSupport().send(producer, msg, persistent, priority, ttl, topic, endpoint);
if (useReplyToDestination && replyTo != null) {
consumer = createReplyToConsumer(msg, event, session, replyTo, topic);
if (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, endpoint);
int timeout = event.getTimeout();
if (logger.isDebugEnabled()) {
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 new DefaultMuleMessage(NullPayload.getInstance(), connector.getMuleContext());
} else {
MessageAdapter adapter = connector.getMessageAdapter(result);
return new DefaultMuleMessage(
JmsMessageUtils.toObject(
result, connector.getSpecification(), endpoint.getEncoding()),
adapter,
connector.getMuleContext());
}
} else {
int timeout = event.getTimeout();
if (logger.isDebugEnabled()) {
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 " + replyTo);
return new DefaultMuleMessage(NullPayload.getInstance(), connector.getMuleContext());
} else {
MessageAdapter adapter = connector.getMessageAdapter(result);
return new DefaultMuleMessage(
JmsMessageUtils.toObject(
result, connector.getSpecification(), endpoint.getEncoding()),
adapter,
connector.getMuleContext());
}
}
}
return new DefaultMuleMessage(
returnOriginalMessageAsReply ? msg : NullPayload.getInstance(),
connector.getMuleContext());
} finally {
connector.closeQuietly(producer);
connector.closeQuietly(consumer);
// TODO AP check if TopicResolver is to be utilized for temp destinations as well
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 (!sessionManaged && transacted && muleTx instanceof TransactionCollection) {
handleMultiTx(session);
}
// 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);
}
}
}
private MuleMessage dispatchMessage(MuleEvent 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()
+ ". MuleEvent id is: "
+ event.getId()
+ ". Outbound transformers are: "
+ event.getEndpoint().getTransformers());
}
try {
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(
JmsMessages.connectorDoesNotSupportSyncReceiveWhenTransacted());
}
}
// 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 {
session = connector.getSession(event.getEndpoint());
cachedSession = session;
}
} else {
session = connector.getSession(event.getEndpoint());
if (event.getEndpoint().getTransactionConfig().isTransacted()) {
transacted = true;
}
}
boolean topic = connector.getTopicResolver().isTopic(event.getEndpoint(), true);
Destination dest = connector.createDestinationMule3858Backport(session, endpoint);
producer = connector.getJmsSupport().createProducer(session, dest, topic);
Object message = event.transformMessage();
if (!(message instanceof Message)) {
throw new DispatchException(
JmsMessages.checkTransformer("JMS message", message.getClass(), connector.getName()),
event.getMessage(),
event.getEndpoint());
}
Message msg = (Message) message;
if (event.getMessage().getCorrelationId() != null) {
msg.setJMSCorrelationID(event.getMessage().getCorrelationId());
}
MuleMessage 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) {
// It may be a Mule URI or global endpoint Ref
tempReplyTo = eventMsg.removeProperty(MuleProperties.MULE_REPLY_TO_PROPERTY);
if (tempReplyTo != null) {
if (tempReplyTo.toString().startsWith("jms://")) {
tempReplyTo = tempReplyTo.toString().substring(6);
} else {
EndpointBuilder epb =
event
.getMuleContext()
.getRegistry()
.lookupEndpointBuilder(tempReplyTo.toString());
if (epb != null) {
tempReplyTo = epb.buildOutboundEndpoint().getEndpointURI().getAddress();
}
}
}
}
if (tempReplyTo != null) {
if (tempReplyTo instanceof Destination) {
replyTo = (Destination) tempReplyTo;
} else {
// TODO AP should this drill-down be moved into the resolver as well?
boolean replyToTopic = false;
String reply = tempReplyTo.toString();
int i = reply.indexOf(":");
if (i > -1) {
// TODO MULE-1409 this check will not work for ActiveMQ 4.x,
// as they have temp-queue://<destination> and temp-topic://<destination> URIs
// Extract to a custom resolver for ActiveMQ4.x
// The code path can be exercised, e.g. by a LoanBrokerESBTestCase
String qtype = reply.substring(0, i);
replyToTopic = JmsConstants.TOPIC_PROPERTY.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) {
try {
consumer = connector.getJmsSupport().createConsumer(session, replyTo, topic);
} catch (Exception e) {
logger.warn(e);
}
}
}
// 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 =
StringUtils.isNotBlank(ttlString)
? NumberUtils.toLong(ttlString)
: Message.DEFAULT_TIME_TO_LIVE;
int priority =
StringUtils.isNotBlank(priorityString)
? NumberUtils.toInt(priorityString)
: Message.DEFAULT_PRIORITY;
boolean persistent =
StringUtils.isNotBlank(persistentDeliveryString)
? BooleanUtils.toBoolean(persistentDeliveryString)
: connector.isPersistentDelivery();
if (connector.isHonorQosHeaders()) {
int priorityProp =
eventMsg.getIntProperty(JmsConstants.JMS_PRIORITY, Connector.INT_VALUE_NOT_SET);
int deliveryModeProp =
eventMsg.getIntProperty(JmsConstants.JMS_DELIVERY_MODE, Connector.INT_VALUE_NOT_SET);
if (priorityProp != Connector.INT_VALUE_NOT_SET) {
priority = priorityProp;
}
if (deliveryModeProp != Connector.INT_VALUE_NOT_SET) {
persistent = deliveryModeProp == DeliveryMode.PERSISTENT;
}
}
if (logger.isDebugEnabled()) {
logger.debug("Sending message of type " + ClassUtils.getSimpleName(msg.getClass()));
}
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();
if (logger.isDebugEnabled()) {
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 {
MessageAdapter adapter = connector.getMessageAdapter(result);
return new DefaultMuleMessage(
JmsMessageUtils.toObject(
result, connector.getSpecification(), endpoint.getEncoding()),
adapter);
}
} else {
connector.getJmsSupport().send(producer, msg, persistent, priority, ttl, topic);
if (consumer != null) {
int timeout = event.getTimeout();
if (logger.isDebugEnabled()) {
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 {
MessageAdapter adapter = connector.getMessageAdapter(result);
return new DefaultMuleMessage(
JmsMessageUtils.toObject(
result, connector.getSpecification(), endpoint.getEncoding()),
adapter);
}
}
}
return null;
} finally {
connector.closeQuietly(producer);
connector.closeQuietly(consumer);
// TODO AP check if TopicResolver is to be utilized for temp destinations as well
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);
}
}
}