org.springframework.jms.support.destination.DynamicDestinationResolver 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.support.destination;
import javax.jms.Destination;
import javax.jms.JMSException;
import javax.jms.Queue;
import javax.jms.QueueSession;
import javax.jms.Session;
import javax.jms.Topic;
import javax.jms.TopicSession;
import org.springframework.util.Assert;
/**
* Simple {@link DestinationResolver} implementation resolving destination names
* as dynamic destinations.
*
* This implementation will work on both JMS 1.1 and JMS 1.0.2,
* because it uses the {@link javax.jms.QueueSession} or {@link javax.jms.TopicSession}
* methods if possible, falling back to JMS 1.1's generic {@link javax.jms.Session}
* methods.
*
* @author Juergen Hoeller
* @since 1.1
* @see javax.jms.QueueSession#createQueue
* @see javax.jms.TopicSession#createTopic
* @see javax.jms.Session#createQueue
* @see javax.jms.Session#createTopic
*/
public class DynamicDestinationResolver implements DestinationResolver {
/**
* Resolve the specified destination name as a dynamic destination.
* @param session the current JMS Session
* @param destinationName the name of the destination
* @param pubSubDomain true if the domain is pub-sub, false if P2P
* @return the JMS destination (either a topic or a queue)
* @throws javax.jms.JMSException if resolution failed
* @see #resolveTopic(javax.jms.Session, String)
* @see #resolveQueue(javax.jms.Session, String)
*/
public Destination resolveDestinationName(Session session, String destinationName, boolean pubSubDomain)
throws JMSException {
Assert.notNull(session, "Session must not be null");
Assert.notNull(destinationName, "Destination name must not be null");
if (pubSubDomain) {
return resolveTopic(session, destinationName);
}
else {
return resolveQueue(session, destinationName);
}
}
/**
* Resolve the given destination name to a {@link Topic}.
* @param session the current JMS Session
* @param topicName the name of the desired {@link Topic}
* @return the JMS {@link Topic}
* @throws javax.jms.JMSException if resolution failed
* @see Session#createTopic(String)
*/
protected Topic resolveTopic(Session session, String topicName) throws JMSException {
if (session instanceof TopicSession) {
// Cast to TopicSession: will work on both JMS 1.1 and 1.0.2
return ((TopicSession) session).createTopic(topicName);
}
else {
// Fall back to generic JMS Session: will only work on JMS 1.1
return session.createTopic(topicName);
}
}
/**
* Resolve the given destination name to a {@link Queue}.
* @param session the current JMS Session
* @param queueName the name of the desired {@link Queue}
* @return the JMS {@link Queue}
* @throws javax.jms.JMSException if resolution failed
* @see Session#createQueue(String)
*/
protected Queue resolveQueue(Session session, String queueName) throws JMSException {
if (session instanceof QueueSession) {
// Cast to QueueSession: will work on both JMS 1.1 and 1.0.2
return ((QueueSession) session).createQueue(queueName);
}
else {
// Fall back to generic JMS Session: will only work on JMS 1.1
return session.createQueue(queueName);
}
}
}