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/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.cxf.transport.jms;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.UnsupportedEncodingException;
import java.util.Map;
import java.util.UUID;
import java.util.concurrent.ConcurrentHashMap;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.jms.JMSException;
import javax.jms.MessageListener;
import javax.jms.Session;
import org.apache.cxf.common.logging.LogUtils;
import org.apache.cxf.message.Exchange;
import org.apache.cxf.message.Message;
import org.apache.cxf.message.MessageImpl;
import org.apache.cxf.service.model.EndpointInfo;
import org.apache.cxf.transport.AbstractConduit;
import org.apache.cxf.ws.addressing.EndpointReferenceType;
import org.springframework.jms.core.JmsTemplate;
import org.springframework.jms.core.MessageCreator;
import org.springframework.jms.listener.DefaultMessageListenerContainer;
import org.springframework.jms.support.JmsUtils;
/**
* JMSConduit is instantiated by the JMSTransportfactory which is selected by a client if the transport
* protocol starts with jms:// JMSConduit converts CXF Messages to JMS Messages and sends the request by using
* a JMS destination. If the Exchange is not oneway it then recevies the response and converts it to a CXF
* Message. This is then provided in the Exchange and also sent to the incomingObserver
*/
public class JMSConduit extends AbstractConduit implements JMSExchangeSender, MessageListener {
static final Logger LOG = LogUtils.getL7dLogger(JMSConduit.class);
private static final String CORRELATED = JMSConduit.class.getName() + ".correlated";
private EndpointInfo endpointInfo;
private JMSConfiguration jmsConfig;
private Map correlationMap;
private DefaultMessageListenerContainer jmsListener;
private String conduitId;
private int messageCount;
public JMSConduit(EndpointInfo endpointInfo, EndpointReferenceType target, JMSConfiguration jmsConfig) {
super(target);
this.jmsConfig = jmsConfig;
this.endpointInfo = endpointInfo;
correlationMap = new ConcurrentHashMap();
conduitId = UUID.randomUUID().toString();
messageCount = 0;
}
private synchronized String createCorrelationId() {
messageCount++;
return conduitId + "_" + messageCount;
}
/**
* Prepare the message for send out. The message will be sent after the caller has written the payload to
* the OutputStream of the message and calls the close method of the stream. In the JMS case the
* JMSOutputStream will then call back the sendExchange method of this class. {@inheritDoc}
*/
public void prepare(Message message) throws IOException {
String name = endpointInfo.getName().toString() + ".jms-conduit";
org.apache.cxf.common.i18n.Message msg =
new org.apache.cxf.common.i18n.Message("INSUFFICIENT_CONFIGURATION_CONDUIT", LOG, name);
jmsConfig.ensureProperlyConfigured(msg);
boolean isTextPayload = JMSConstants.TEXT_MESSAGE_TYPE.equals(jmsConfig.getMessageType());
JMSOutputStream out = new JMSOutputStream(this, message.getExchange(), isTextPayload);
message.setContent(OutputStream.class, out);
}
/**
* Send the JMS Request out and if not oneWay receive the response
*
* @param outMessage
* @param request
* @return inMessage
*/
public void sendExchange(final Exchange exchange, final Object request) {
LOG.log(Level.FINE, "JMSConduit send message");
final Message outMessage = exchange.getOutMessage();
if (outMessage == null) {
throw new RuntimeException("Exchange to be sent has no outMessage");
}
JMSMessageHeadersType headers = (JMSMessageHeadersType)outMessage
.get(JMSConstants.JMS_CLIENT_REQUEST_HEADERS);
JmsTemplate jmsTemplate = JMSFactory.createJmsTemplate(jmsConfig, headers);
if (!exchange.isOneWay() && jmsListener == null) {
jmsListener = JMSFactory.createJmsListener(jmsConfig, this, jmsConfig.getReplyDestination(),
conduitId);
}
final javax.jms.Destination replyTo = exchange.isOneWay() ? null : jmsListener.getDestination();
final String correlationId = (headers != null && headers.isSetJMSCorrelationID()) ? headers
.getJMSCorrelationID() : createCorrelationId();
MessageCreator messageCreator = new MessageCreator() {
public javax.jms.Message createMessage(Session session) throws JMSException {
String messageType = jmsConfig.getMessageType();
final javax.jms.Message jmsMessage;
jmsMessage = JMSUtils.buildJMSMessageFromCXFMessage(outMessage, request, messageType,
session, replyTo,
correlationId);
LOG.log(Level.FINE, "client sending request: ", jmsMessage);
return jmsMessage;
}
};
/**
* If the message is not oneWay we will expect to receive a reply on the listener. To receive this
* reply we add the correlationId and an empty CXF Message to the correlationMap. The listener will
* fill to Message and notify this thread
*/
if (!exchange.isOneWay()) {
synchronized (exchange) {
correlationMap.put(correlationId, exchange);
jmsTemplate.send(jmsConfig.getTargetDestination(), messageCreator);
if (exchange.isSynchronous()) {
try {
exchange.wait(jmsTemplate.getReceiveTimeout());
} catch (InterruptedException e) {
correlationMap.remove(correlationId);
throw new RuntimeException(e);
}
correlationMap.remove(correlationId);
if (exchange.get(CORRELATED) == null) {
throw new RuntimeException("Timeout receiving message with correlationId "
+ correlationId);
}
}
}
} else {
jmsTemplate.send(jmsConfig.getTargetDestination(), messageCreator);
}
}
/**
* When a message is received on the reply destination the correlation map is searched for the
* correlationId. If it is found the message is converted to a CXF message and the thread sending the
* request is notified {@inheritDoc}
*/
public void onMessage(javax.jms.Message jmsMessage) {
String correlationId;
try {
correlationId = jmsMessage.getJMSCorrelationID();
} catch (JMSException e) {
throw JmsUtils.convertJmsAccessException(e);
}
Exchange exchange = correlationMap.remove(correlationId);
if (exchange == null) {
LOG.log(Level.WARNING, "Could not correlate message with correlationId " + correlationId);
return;
}
Message inMessage = new MessageImpl();
exchange.setInMessage(inMessage);
LOG.log(Level.FINE, "client received reply: ", jmsMessage);
try {
JMSUtils.populateIncomingContext(jmsMessage, inMessage, JMSConstants.JMS_CLIENT_RESPONSE_HEADERS);
byte[] response = JMSUtils.retrievePayload(jmsMessage, (String)inMessage.get(Message.ENCODING));
LOG.log(Level.FINE, "The Response Message payload is : [" + response + "]");
inMessage.setContent(InputStream.class, new ByteArrayInputStream(response));
if (exchange.isSynchronous()) {
synchronized (exchange) {
exchange.put(CORRELATED, Boolean.TRUE);
exchange.notifyAll();
}
}
//REVISIT: put on a workqueue?
if (incomingObserver != null) {
incomingObserver.onMessage(exchange.getInMessage());
}
} catch (UnsupportedEncodingException ex) {
getLogger().log(Level.WARNING, "can't get the right encoding information " + ex);
}
}
public void close() {
if (jmsListener != null) {
jmsListener.shutdown();
}
LOG.log(Level.FINE, "JMSConduit closed ");
}
protected Logger getLogger() {
return LOG;
}
public JMSConfiguration getJmsConfig() {
return jmsConfig;
}
public void setJmsConfig(JMSConfiguration jmsConfig) {
this.jmsConfig = jmsConfig;
}
@Override
protected void finalize() throws Throwable {
if (jmsListener != null) {
jmsListener.shutdown();
}
super.finalize();
}
}
