/*
*
* 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.
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*/
package org.apache.qpid.flow;
import org.apache.qpid.client.AMQConnection;
import org.apache.qpid.client.AMQDestination;
import org.apache.qpid.client.AMQQueue;
import org.apache.qpid.client.AMQSession;
import org.apache.qpid.exchange.ExchangeDefaults;
import org.apache.qpid.framing.AMQShortString;
import javax.jms.Message;
import javax.jms.MessageListener;
import javax.jms.MessageProducer;
public class ChannelFlowTest implements MessageListener
{
private int sent;
private int received;
ChannelFlowTest(String broker) throws Exception
{
this(new AMQConnection(broker, "guest", "guest", randomize("Client"), "/test"));
}
ChannelFlowTest(AMQConnection connection) throws Exception
{
this(connection, new AMQQueue(connection.getDefaultQueueExchangeName(), new AMQShortString(randomize("ChannelFlowTest")), true));
}
ChannelFlowTest(AMQConnection connection, AMQDestination destination) throws Exception
{
AMQSession session = (AMQSession) connection.createSession(false, AMQSession.NO_ACKNOWLEDGE, 50,25);
//set up a slow consumer
session.createConsumer(destination).setMessageListener(this);
connection.start();
//create a publisher
MessageProducer producer = session.createProducer(destination);
Message msg = session.createTextMessage("Message");
//publish in bursts that are fast enough to cause channel flow control
for(int i = 0; i < 10; i++)
{
for(int j = 0; j < 100; j++)
{
producer.send(msg);
sent++;
}
waitUntilReceived(sent - 40);
}
waitUntilReceived(sent);
session.close();
connection.close();
}
private synchronized void waitUntilReceived(int count) throws InterruptedException
{
while(received <count)
{
wait();
}
}
public synchronized void onMessage(Message message)
{
try
{
Thread.sleep(50);
received++;
notify();
}
catch (InterruptedException e)
{
e.printStackTrace();
}
}
private static String randomize(String in)
{
return in + System.currentTimeMillis();
}
public static void main(String[] argv) throws Exception
{
new ChannelFlowTest(argv.length == 0 ? "localhost:5672" : argv[0]);
}
}