| /* |
| * |
| * 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.qpid.example.jmsexample.requestResponse; |
| |
| import javax.jms.*; |
| import javax.naming.Context; |
| import javax.naming.InitialContext; |
| import java.util.Properties; |
| |
| /** |
| * The example creates a MessageConsumer on the specified |
| * Destination which is used to synchronously consume messages. If a |
| * received message has a ReplyTo header then a new response message is sent |
| * to that specified destination. |
| */ |
| public class Server |
| { |
| /* Used in log output. */ |
| private static final String CLASS="Server"; |
| |
| |
| /** |
| * Run the message mirror example. |
| * |
| * @param args Command line arguments. |
| */ |
| public static void main(String[] args) |
| { |
| Server server=new Server(); |
| server.runTest(); |
| } |
| |
| /** |
| * Start the example. |
| */ |
| private void runTest() |
| { |
| try |
| { |
| // Load JNDI properties |
| Properties properties=new Properties(); |
| properties.load(this.getClass().getResourceAsStream("requestResponse.properties")); |
| |
| //Create the initial context |
| Context ctx=new InitialContext(properties); |
| |
| // Lookup the connection factory |
| ConnectionFactory conFac=(ConnectionFactory) ctx.lookup("qpidConnectionfactory"); |
| |
| // create the connection |
| Connection connection=conFac.createConnection(); |
| |
| // As this application is using a MessageConsumer we need to set an ExceptionListener on the connection |
| // so that errors raised within the JMS client library can be reported to the application |
| System.out.println( |
| CLASS + ": Setting an ExceptionListener on the connection as sample uses a MessageConsumer"); |
| |
| connection.setExceptionListener(new ExceptionListener() |
| { |
| public void onException(JMSException jmse) |
| { |
| // The connection may have broken invoke reconnect code if available. |
| // The connection may have broken invoke reconnect code if available. |
| System.err.println(CLASS + ": The sample received an exception through the ExceptionListener"); |
| System.exit(0); |
| } |
| }); |
| |
| // Create a session on the connection |
| // This session is a default choice of non-transacted and uses |
| // the auto acknowledge feature of a session. |
| System.out.println(CLASS + ": Creating a non-transacted, auto-acknowledged session"); |
| |
| Session session=connection.createSession(false, Session.AUTO_ACKNOWLEDGE); |
| |
| // Lookup the destination |
| Queue destination = (Queue) ctx.lookup("requestQueue"); |
| |
| |
| // Create a MessageConsumer |
| System.out.println(CLASS + ": Creating a MessageConsumer"); |
| MessageConsumer messageConsumer=session.createConsumer(destination); |
| |
| /** |
| * Create a MessageProducer |
| */ |
| System.out.println(CLASS + ": Creating a MessageProducer"); |
| MessageProducer messageProducer; |
| |
| // Now the messageConsumer is set up we can start the connection |
| System.out.println(CLASS + ": Starting connection so MessageConsumer can receive messages"); |
| connection.start(); |
| |
| // Cycle round until all the messages are consumed. |
| Message requestMessage; |
| TextMessage responseMessage; |
| boolean end=false; |
| while (!end) |
| { |
| System.out.println(CLASS + ": Receiving the message"); |
| |
| requestMessage=messageConsumer.receive(); |
| |
| String text; |
| if (requestMessage instanceof TextMessage) |
| { |
| text=((TextMessage) requestMessage).getText(); |
| } |
| else |
| { |
| byte[] body=new byte[(int) ((BytesMessage) requestMessage).getBodyLength()]; |
| ((BytesMessage) requestMessage).readBytes(body); |
| text=new String(body); |
| } |
| |
| // Now bounce the message if a ReplyTo header was set. |
| if (requestMessage.getJMSReplyTo() != null) |
| { |
| System.out.println(CLASS + ": Activating response queue listener"); |
| responseMessage=session.createTextMessage(); |
| |
| responseMessage.setText(text.toUpperCase()); |
| System.out.println(CLASS + ": \tResponse = " + responseMessage.getText()); |
| |
| messageProducer=session.createProducer(requestMessage.getJMSReplyTo()); |
| messageProducer.send(responseMessage); |
| } |
| System.out.println(); |
| } |
| |
| // Close the connection to the server |
| System.out.println(CLASS + ": Closing connection"); |
| connection.close(); |
| |
| // Close the JNDI reference |
| System.out.println(CLASS + ": Closing JNDI context"); |
| ctx.close(); |
| } |
| catch (Exception exp) |
| { |
| exp.printStackTrace(); |
| System.err.println(CLASS + ": Caught an Exception: " + exp); |
| } |
| } |
| } |