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* 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.
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*/
package org.apache.qpid.test.unit.basic;
import org.apache.qpid.framing.AMQShortString;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.apache.qpid.client.AMQConnection;
import org.apache.qpid.client.AMQDestination;
import org.apache.qpid.client.AMQSession;
import org.apache.qpid.client.AMQTopic;
import org.apache.qpid.exchange.ExchangeDefaults;
import org.apache.qpid.test.utils.QpidBrokerTestCase;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.MessageListener;
import javax.jms.MessageProducer;
import javax.jms.Session;
public class MultipleConnectionTest extends QpidBrokerTestCase
{
private static final Logger _logger = LoggerFactory.getLogger(MultipleConnectionTest.class);
public static final String _defaultBroker = "vm://:1";
public String _connectionString = _defaultBroker;
private class Receiver
{
private AMQConnection _connection;
private Session[] _sessions;
private MessageCounter[] _counters;
Receiver(String broker, AMQDestination dest, int sessions) throws Exception
{
this((AMQConnection) getConnection("guest", "guest"), dest, sessions);
}
Receiver(AMQConnection connection, AMQDestination dest, int sessions) throws Exception
{
_connection = connection;
_sessions = new AMQSession[sessions];
_counters = new MessageCounter[sessions];
for (int i = 0; i < sessions; i++)
{
_sessions[i] = _connection.createSession(false, AMQSession.NO_ACKNOWLEDGE);
_counters[i] = new MessageCounter(_sessions[i].toString());
_sessions[i].createConsumer(dest).setMessageListener(_counters[i]);
}
_connection.start();
}
void close() throws JMSException
{
_connection.close();
}
public MessageCounter[] getCounters()
{
return _counters;
}
}
private class Publisher
{
private AMQConnection _connection;
private Session _session;
private MessageProducer _producer;
Publisher(String broker, AMQDestination dest) throws Exception
{
this((AMQConnection) getConnection("guest", "guest"), dest);
}
Publisher(AMQConnection connection, AMQDestination dest) throws Exception
{
_connection = connection;
_session = _connection.createSession(false, AMQSession.NO_ACKNOWLEDGE);
_producer = _session.createProducer(dest);
}
void send(String msg) throws JMSException
{
_producer.send(_session.createTextMessage(msg));
}
void close() throws JMSException
{
_connection.close();
}
}
private static class MessageCounter implements MessageListener
{
private final String _name;
private int _count;
MessageCounter(String name)
{
_name = name;
}
public synchronized void onMessage(Message message)
{
_count++;
notify();
}
synchronized boolean waitUntil(int expected, long maxWait) throws InterruptedException
{
long start = System.currentTimeMillis();
while (expected > _count)
{
long timeLeft = maxWait - timeSince(start);
if (timeLeft <= 0)
{
break;
}
wait(timeLeft);
}
return expected <= _count;
}
private long timeSince(long start)
{
return System.currentTimeMillis() - start;
}
public synchronized String toString()
{
return _name + ": " + _count;
}
}
private static void waitForCompletion(int expected, long wait, Receiver[] receivers) throws InterruptedException
{
for (int i = 0; i < receivers.length; i++)
{
waitForCompletion(expected, wait, receivers[i].getCounters());
}
}
private static void waitForCompletion(int expected, long wait, MessageCounter[] counters) throws InterruptedException
{
for (int i = 0; i < counters.length; i++)
{
if (!counters[i].waitUntil(expected, wait))
{
throw new RuntimeException("Expected: " + expected + " got " + counters[i]);
}
}
}
private static String randomize(String in)
{
return in + System.currentTimeMillis();
}
public static void main(String[] argv) throws Exception
{
String broker = (argv.length > 0) ? argv[0] : _defaultBroker;
MultipleConnectionTest test = new MultipleConnectionTest();
test._connectionString = broker;
test.test();
}
public void test() throws Exception
{
String broker = _connectionString;
int messages = 10;
AMQTopic topic = new AMQTopic(AMQShortString.valueOf(ExchangeDefaults.TOPIC_EXCHANGE_NAME), "amq.topic");
Receiver[] receivers = new Receiver[] { new Receiver(broker, topic, 2), new Receiver(broker, topic, 14) };
Publisher publisher = new Publisher(broker, topic);
for (int i = 0; i < messages; i++)
{
publisher.send("Message " + (i + 1));
}
try
{
waitForCompletion(messages, 5000, receivers);
_logger.info("All receivers received all expected messages");
}
finally
{
publisher.close();
for (int i = 0; i < receivers.length; i++)
{
receivers[i].close();
}
}
}
public static junit.framework.Test suite()
{
return new junit.framework.TestSuite(MultipleConnectionTest.class);
}
}