| /** |
| * 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. |
| */ |
| //START SNIPPET: code |
| package org.superbiz.mdb; |
| |
| import javax.annotation.Resource; |
| import javax.ejb.MessageDriven; |
| import javax.jms.Connection; |
| import javax.jms.ConnectionFactory; |
| import javax.jms.DeliveryMode; |
| import javax.jms.JMSException; |
| import javax.jms.Message; |
| import javax.jms.MessageListener; |
| import javax.jms.MessageProducer; |
| import javax.jms.Queue; |
| import javax.jms.Session; |
| import javax.jms.TextMessage; |
| |
| @MessageDriven |
| public class ChatBean implements MessageListener { |
| |
| @Resource |
| private ConnectionFactory connectionFactory; |
| |
| @Resource(name = "AnswerQueue") |
| private Queue answerQueue; |
| |
| public void onMessage(Message message) { |
| try { |
| |
| final TextMessage textMessage = (TextMessage) message; |
| final String question = textMessage.getText(); |
| |
| if ("Hello World!".equals(question)) { |
| |
| respond("Hello, Test Case!"); |
| |
| } else if ("How are you?".equals(question)) { |
| |
| respond("I'm doing well."); |
| |
| } else if ("Still spinning?".equals(question)) { |
| |
| respond("Once every day, as usual."); |
| |
| } |
| } catch (JMSException e) { |
| throw new IllegalStateException(e); |
| } |
| } |
| |
| private void respond(String text) throws JMSException { |
| |
| Connection connection = null; |
| Session session = null; |
| |
| try { |
| connection = connectionFactory.createConnection(); |
| connection.start(); |
| |
| // Create a Session |
| session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE); |
| |
| // Create a MessageProducer from the Session to the Topic or Queue |
| MessageProducer producer = session.createProducer(answerQueue); |
| producer.setDeliveryMode(DeliveryMode.NON_PERSISTENT); |
| |
| // Create a message |
| TextMessage message = session.createTextMessage(text); |
| |
| // Tell the producer to send the message |
| producer.send(message); |
| } finally { |
| // Clean up |
| if (session != null) { |
| session.close(); |
| } |
| if (connection != null) { |
| connection.close(); |
| } |
| } |
| } |
| } |
| //END SNIPPET: code |