| /******************************************************************************* |
| * 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.ofbiz.service.jms; |
| |
| import javax.jms.JMSException; |
| import javax.jms.Session; |
| import javax.jms.Topic; |
| import javax.jms.TopicConnection; |
| import javax.jms.TopicConnectionFactory; |
| import javax.jms.TopicSession; |
| import javax.jms.TopicSubscriber; |
| import javax.naming.InitialContext; |
| import javax.naming.NamingException; |
| |
| import org.apache.ofbiz.service.GenericServiceException; |
| import org.apache.ofbiz.base.util.Debug; |
| import org.apache.ofbiz.base.util.GeneralException; |
| import org.apache.ofbiz.base.util.JNDIContextFactory; |
| import org.apache.ofbiz.entity.Delegator; |
| |
| /** |
| * JmsTopicListener - Topic (Pub/Sub) Message Listener. |
| */ |
| public class JmsTopicListener extends AbstractJmsListener { |
| |
| public static final String module = JmsTopicListener.class.getName(); |
| |
| private TopicConnection con = null; |
| private TopicSession session = null; |
| private Topic topic = null; |
| |
| private String jndiServer, jndiName, topicName, userName, password; |
| |
| /** |
| * Creates a new JmsTopicListener - Should only be called by the JmsListenerFactory. |
| */ |
| public JmsTopicListener(Delegator delegator, String jndiServer, String jndiName, String topicName, String userName, String password) { |
| super(delegator); |
| this.jndiServer = jndiServer; |
| this.jndiName = jndiName; |
| this.topicName = topicName; |
| this.userName = userName; |
| this.password = password; |
| } |
| |
| public void close() throws GenericServiceException { |
| try { |
| if (session != null) |
| session.close(); |
| if (con != null) |
| con.close(); |
| } catch (JMSException e) { |
| throw new GenericServiceException("Cannot close connection(s).", e); |
| } |
| } |
| |
| public synchronized void load() throws GenericServiceException { |
| try { |
| InitialContext jndi = JNDIContextFactory.getInitialContext(jndiServer); |
| TopicConnectionFactory factory = (TopicConnectionFactory) jndi.lookup(jndiName); |
| |
| if (factory != null) { |
| con = factory.createTopicConnection(userName, password); |
| con.setExceptionListener(this); |
| session = con.createTopicSession(false, Session.AUTO_ACKNOWLEDGE); |
| topic = (Topic) jndi.lookup(topicName); |
| if (topic != null) { |
| TopicSubscriber subscriber = session.createSubscriber(topic); |
| subscriber.setMessageListener(this); |
| con.start(); |
| this.setConnected(true); |
| if (Debug.infoOn()) Debug.logInfo("Listening to topic [" + topicName + "] on [" + jndiServer + "]...", module); |
| } else { |
| throw new GenericServiceException("Topic lookup failed."); |
| } |
| } else { |
| throw new GenericServiceException("Factory (broker) lookup failed."); |
| } |
| } catch (NamingException ne) { |
| throw new GenericServiceException("JNDI lookup problems; listener not running.", ne); |
| } catch (JMSException je) { |
| throw new GenericServiceException("JMS internal error; listener not running.", je); |
| } catch (GeneralException ge) { |
| throw new GenericServiceException("Problems with InitialContext; listener not running.", ge); |
| } |
| } |
| } |