org.springframework.jms.listener.adapter.MessageListenerAdapter102 Maven / Gradle / Ivy
/*
* Copyright 2002-2006 the original author or authors.
*
* Licensed 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.springframework.jms.listener.adapter;
import javax.jms.Destination;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.MessageProducer;
import javax.jms.Queue;
import javax.jms.QueueSender;
import javax.jms.QueueSession;
import javax.jms.Session;
import javax.jms.Topic;
import javax.jms.TopicPublisher;
import javax.jms.TopicSession;
import org.springframework.jms.support.JmsUtils;
import org.springframework.jms.support.converter.SimpleMessageConverter102;
/**
* A {@link MessageListenerAdapter} subclass that uses the JMS 1.0.2 specification,
* rather than the JMS 1.1 methods used by MessageListenerAdapter itself.
*
* This class can be used for JMS 1.0.2 providers, offering the same facility
* as MessageListenerAdapter does for JMS 1.1 providers.
* @author Juergen Hoeller
* @author Rick Evans
* @since 2.0
*/
public class MessageListenerAdapter102 extends MessageListenerAdapter {
/**
* Create a new instance of the {@link MessageListenerAdapter102} class
* with the default settings.
*/
public MessageListenerAdapter102() {
}
/**
* Create a new instance of the {@link MessageListenerAdapter102} class
* for the given delegate.
* @param delegate the target object to delegate message listening to
*/
public MessageListenerAdapter102(Object delegate) {
super(delegate);
}
/**
* Initialize the default implementations for the adapter's strategies:
* SimpleMessageConverter102.
* @see #setMessageConverter
* @see org.springframework.jms.support.converter.SimpleMessageConverter102
*/
protected void initDefaultStrategies() {
setMessageConverter(new SimpleMessageConverter102());
}
/**
* Overrides the superclass method to use the JMS 1.0.2 API to send a response.
*
Uses the JMS pub-sub API if the given destination is a topic,
* else uses the JMS queue API.
*/
protected void sendResponse(Session session, Destination destination, Message response) throws JMSException {
MessageProducer producer = null;
try {
if (destination instanceof Topic) {
producer = ((TopicSession) session).createPublisher((Topic) destination);
postProcessProducer(producer, response);
((TopicPublisher) producer).publish(response);
}
else {
producer = ((QueueSession) session).createSender((Queue) destination);
postProcessProducer(producer, response);
((QueueSender) producer).send(response);
}
}
finally {
JmsUtils.closeMessageProducer(producer);
}
}
}