| /* |
| * |
| * 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.topic; |
| |
| import javax.jms.Connection; |
| import javax.jms.Message; |
| import javax.jms.MessageListener; |
| import javax.jms.MessageProducer; |
| import javax.jms.Session; |
| |
| public class Listener implements MessageListener |
| { |
| private final Connection _connection; |
| private final MessageProducer _controller; |
| private final javax.jms.Session _session; |
| private final MessageFactory _factory; |
| private boolean init; |
| private int count; |
| private long start; |
| |
| Listener(Connection connection, int ackMode) throws Exception |
| { |
| this(connection, ackMode, null); |
| } |
| |
| Listener(Connection connection, int ackMode, String name) throws Exception |
| { |
| _connection = connection; |
| _session = connection.createSession(false, ackMode); |
| _factory = new MessageFactory(_session); |
| |
| //register for events |
| if(name == null) |
| { |
| _factory.createTopicConsumer().setMessageListener(this); |
| } |
| else |
| { |
| _factory.createDurableTopicConsumer(name).setMessageListener(this); |
| } |
| |
| _connection.start(); |
| |
| _controller = _factory.createControlPublisher(); |
| System.out.println("Waiting for messages " + |
| Config.getAckModeDescription(ackMode) |
| + (name == null ? "" : " (subscribed with name " + name + " and client id " + connection.getClientID() + ")") |
| + "..."); |
| |
| } |
| |
| private void shutdown() |
| { |
| try |
| { |
| _session.close(); |
| _connection.stop(); |
| _connection.close(); |
| } |
| catch(Exception e) |
| { |
| e.printStackTrace(System.out); |
| } |
| } |
| |
| private void report() |
| { |
| try |
| { |
| String msg = getReport(); |
| _controller.send(_factory.createReportResponseMessage(msg)); |
| System.out.println("Sent report: " + msg); |
| } |
| catch(Exception e) |
| { |
| e.printStackTrace(System.out); |
| } |
| } |
| |
| private String getReport() |
| { |
| long time = (System.currentTimeMillis() - start); |
| return "Received " + count + " in " + time + "ms"; |
| } |
| |
| public void onMessage(Message message) |
| { |
| if(!init) |
| { |
| start = System.currentTimeMillis(); |
| count = 0; |
| init = true; |
| } |
| |
| if(_factory.isShutdown(message)) |
| { |
| shutdown(); |
| } |
| else if(_factory.isReport(message)) |
| { |
| //send a report: |
| report(); |
| init = false; |
| } |
| else if (++count % 100 == 0) |
| { |
| System.out.println("Received " + count + " messages."); |
| } |
| } |
| |
| public static void main(String[] argv) throws Exception |
| { |
| Config config = new Config(); |
| config.setOptions(argv); |
| |
| Connection con = config.createConnection(); |
| if(config.getClientId() != null) |
| { |
| con.setClientID(config.getClientId()); |
| } |
| new Listener(con, config.getAckMode(), config.getSubscriptionId()); |
| } |
| } |