/**
*
* Copyright 2004 Protique Ltd
*
* 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.activemq.jca;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.aop.TargetSource;
import javax.jms.MessageListener;
import javax.jms.Message;
/**
* Represents a pool of MessageListener instances using Spring's
* TargetSource for the underlying pool.
*
* @version $Revision: 1.1.1.1 $
*/
public class TargetSourceMessageListener implements MessageListener, InitializingBean {
private TargetSource targetSource;
public void onMessage(Message message) {
MessageListener delegate = null;
try {
delegate = (MessageListener) targetSource.getTarget();
}
catch (Exception e) {
handleException(e);
}
try {
delegate.onMessage(message);
}
finally {
try {
targetSource.releaseTarget(delegate);
}
catch (Exception e) {
handleException(e);
}
}
}
public void afterPropertiesSet() throws Exception {
if (targetSource == null) {
throw new IllegalArgumentException("targetSource must be set");
}
}
public TargetSource getTargetSource() {
return targetSource;
}
public void setTargetSource(TargetSource targetSource) {
this.targetSource = targetSource;
}
protected void handleException(Exception e) {
throw new RuntimeException(e);
}
}