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/*
*
* Copyright (c) 2006 The Apache Software Foundation
*
* Licensed 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.server.handler;
import org.apache.log4j.Logger;
import org.apache.qpid.AMQException;
import org.apache.qpid.protocol.AMQConstant;
import org.apache.qpid.framing.AMQFrame;
import org.apache.qpid.framing.QueueBindBody;
import org.apache.qpid.framing.QueueBindOkBody;
import org.apache.qpid.server.exchange.Exchange;
import org.apache.qpid.server.exchange.ExchangeRegistry;
import org.apache.qpid.server.protocol.AMQMethodEvent;
import org.apache.qpid.server.protocol.AMQProtocolSession;
import org.apache.qpid.server.queue.AMQQueue;
import org.apache.qpid.server.queue.QueueRegistry;
import org.apache.qpid.server.state.AMQStateManager;
import org.apache.qpid.server.state.StateAwareMethodListener;
public class QueueBindHandler implements StateAwareMethodListener<QueueBindBody>
{
private static final Logger _log = Logger.getLogger(QueueBindHandler.class);
private static final QueueBindHandler _instance = new QueueBindHandler();
public static QueueBindHandler getInstance()
{
return _instance;
}
private QueueBindHandler()
{
}
public void methodReceived(AMQStateManager stateManager, QueueRegistry queueRegistry,
ExchangeRegistry exchangeRegistry, AMQProtocolSession protocolSession,
AMQMethodEvent<QueueBindBody> evt) throws AMQException
{
final QueueBindBody body = evt.getMethod();
final AMQQueue queue;
if (body.queue == null)
{
queue = protocolSession.getChannel(evt.getChannelId()).getDefaultQueue();
if (queue == null)
{
throw new AMQException("No default queue defined on channel and queue was null");
}
if (body.routingKey == null)
{
body.routingKey = queue.getName();
}
}
else
{
queue = queueRegistry.getQueue(body.queue);
}
if (queue == null)
{
throw body.getChannelException(AMQConstant.NOT_FOUND.getCode(), "Queue " + body.queue + " does not exist.");
}
final Exchange exch = exchangeRegistry.getExchange(body.exchange);
if (exch == null)
{
throw body.getChannelException(AMQConstant.NOT_FOUND.getCode(), "Exchange " + body.exchange + " does not exist.");
}
exch.registerQueue(body.routingKey, queue, body.arguments);
queue.bind(body.routingKey, exch);
if (_log.isInfoEnabled())
{
_log.info("Binding queue " + queue + " to exchange " + exch + " with routing key " + body.routingKey);
}
if (!body.nowait)
{
final AMQFrame response = QueueBindOkBody.createAMQFrame(evt.getChannelId());
protocolSession.writeFrame(response);
}
}
}
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