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/*
*
* 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.oldtopic;
import org.apache.log4j.*;
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());
}
}
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