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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
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* KIND, either express or implied. See the License for the
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package org.apache.qpid.disttest.jms;
import java.util.List;
import javax.jms.Connection;
import javax.jms.JMSException;
import javax.jms.MessageConsumer;
import javax.jms.Session;
import org.apache.qpid.AMQException;
import org.apache.qpid.client.AMQDestination;
import org.apache.qpid.client.AMQSession;
import org.apache.qpid.disttest.DistributedTestException;
import org.apache.qpid.disttest.controller.config.QueueConfig;
import org.apache.qpid.framing.AMQShortString;
import org.apache.qpid.framing.FieldTable;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class QpidQueueCreator implements QueueCreator
{
private static final Logger LOGGER = LoggerFactory.getLogger(QpidQueueCreator.class);
private static final FieldTable EMPTY_QUEUE_BIND_ARGUMENTS = new FieldTable();
private static final String QUEUE_CREATOR_DRAIN_POLL_TIMEOUT = "qpid.disttest.queue.creator.drainPollTime";
private static int _drainPollTimeout = Integer.getInteger(QUEUE_CREATOR_DRAIN_POLL_TIMEOUT, 5000);
@Override
public void createQueues(Connection connection, Session session, List<QueueConfig> configs)
{
AMQSession<?, ?> amqSession = (AMQSession<?, ?>)session;
for (QueueConfig queueConfig : configs)
{
createQueue(amqSession, queueConfig);
}
}
@Override
public void deleteQueues(Connection connection, Session session, List<QueueConfig> configs)
{
AMQSession<?, ?> amqSession = (AMQSession<?, ?>)session;
for (QueueConfig queueConfig : configs)
{
AMQDestination destination = createAMQDestination(amqSession, queueConfig);
// drainQueue method is added because deletion of queue with a lot
// of messages takes time and might cause the timeout exception
if (queueHasMessages(amqSession, destination))
{
drainQueue(connection, destination);
}
deleteQueue(amqSession, destination.getAMQQueueName());
}
}
private AMQDestination createAMQDestination(AMQSession<?, ?> amqSession, QueueConfig queueConfig)
{
try
{
return (AMQDestination) amqSession.createQueue(queueConfig.getName());
}
catch (Exception e)
{
throw new DistributedTestException("Failed to create amq destionation object:" + queueConfig, e);
}
}
private boolean queueHasMessages(AMQSession<?, ?> amqSession, AMQDestination destination)
{
try
{
long queueDepth = amqSession.getQueueDepth(destination);
LOGGER.info("Queue {} has {} message(s)", destination.getQueueName(), queueDepth);
return queueDepth > 0;
}
catch (Exception e)
{
throw new DistributedTestException("Failed to query queue depth:" + destination, e);
}
}
private void drainQueue(Connection connection, AMQDestination destination)
{
Session noAckSession = null;
try
{
LOGGER.debug("About to drain the queue {}", destination.getQueueName());
noAckSession = connection.createSession(false, org.apache.qpid.jms.Session.NO_ACKNOWLEDGE);
MessageConsumer messageConsumer = noAckSession.createConsumer(destination);
int counter = 0;
while(messageConsumer.receive(_drainPollTimeout) != null)
{
counter++;
}
LOGGER.info("Drained {} message(s) from queue {} ", counter, destination.getQueueName());
messageConsumer.close();
}
catch (Exception e)
{
throw new DistributedTestException("Failed to drain queue:" + destination, e);
}
finally
{
if (noAckSession != null)
{
try
{
noAckSession.close();
}
catch (JMSException e)
{
throw new DistributedTestException("Failed to close n/a session:" + noAckSession, e);
}
}
}
}
private void createQueue(AMQSession<?, ?> session, QueueConfig queueConfig)
{
try
{
AMQDestination destination = (AMQDestination) session.createQueue(queueConfig.getName());
boolean autoDelete = false;
boolean exclusive = false;
session.createQueue(destination.getAMQQueueName(), autoDelete,
queueConfig.isDurable(), exclusive, queueConfig.getAttributes());
session.bindQueue(destination.getAMQQueueName(), destination.getRoutingKey(),
EMPTY_QUEUE_BIND_ARGUMENTS, destination.getExchangeName(),
destination, autoDelete);
LOGGER.debug("Created queue {}", queueConfig);
}
catch (Exception e)
{
throw new DistributedTestException("Failed to create queue:" + queueConfig, e);
}
}
private void deleteQueue(AMQSession<?, ?> session, AMQShortString queueName)
{
try
{
// The Qpid AMQSession API currently makes the #deleteQueue method protected and the
// raw protocol method public. This should be changed then we should switch the below to
// use #deleteQueue.
session.sendQueueDelete(queueName);
LOGGER.debug("Deleted queue {}", queueName);
}
catch (Exception e)
{
throw new DistributedTestException("Failed to delete queue:" + queueName, e);
}
}
}