/**
* Licensed to the Austrian Association for Software Tool Integration (AASTI)
* under one or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information regarding copyright
* ownership. The AASTI 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.openengsb.ports.jms;
import java.util.HashMap;
import java.util.Map;
import javax.jms.ConnectionFactory;
import org.apache.activemq.ActiveMQConnectionFactory;
import org.springframework.jms.connection.SingleConnectionFactory;
import org.springframework.jms.core.JmsTemplate;
import org.springframework.jms.listener.SimpleMessageListenerContainer;
public class JMSTemplateFactoryImpl implements JMSTemplateFactory {
/** This one can be overwritten whenever required */
private static final Long DEFAULT_TIMEOUT = 3000L;
/** Shares single connection factories to avoid the extended effort of creating one */
private Map<String, ConnectionFactory> connections = new HashMap<String, ConnectionFactory>();
@Override
public JmsTemplate createJMSTemplate(DestinationUrl destination) {
ConnectionFactory connectionFactory = retrieveJmsConnectionFactory(destination.getHost());
JmsTemplate template = retrieveJmsTemplate(destination.getJmsDestination(), connectionFactory);
return template;
}
private synchronized ConnectionFactory retrieveJmsConnectionFactory(String host) {
if (!connections.containsKey(host)) {
connections.put(host, new SingleConnectionFactory(new ActiveMQConnectionFactory(host)));
}
return connections.get(host);
}
private JmsTemplate retrieveJmsTemplate(String jmsDestination, ConnectionFactory connectionFactory) {
JmsTemplate template = new JmsTemplate(connectionFactory);
template.setDefaultDestinationName(jmsDestination);
template.setReceiveTimeout(DEFAULT_TIMEOUT);
return template;
}
@Override
public SimpleMessageListenerContainer createMessageListenerContainer() {
return new SimpleMessageListenerContainer();
}
}