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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.
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*/
package org.apache.qpid.server.handler;
import org.apache.log4j.Logger;
import org.apache.qpid.AMQException;
import org.apache.qpid.AMQInvalidRoutingKeyException;
import org.apache.qpid.framing.*;
import org.apache.qpid.protocol.AMQConstant;
import org.apache.qpid.server.AMQChannel;
import org.apache.qpid.server.exchange.Exchange;
import org.apache.qpid.server.exchange.ExchangeRegistry;
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.security.access.Permission;
import org.apache.qpid.server.state.AMQStateManager;
import org.apache.qpid.server.state.StateAwareMethodListener;
import org.apache.qpid.server.virtualhost.VirtualHost;
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, QueueBindBody body, int channelId) throws AMQException
{
AMQProtocolSession session = stateManager.getProtocolSession();
VirtualHost virtualHost = session.getVirtualHost();
ExchangeRegistry exchangeRegistry = virtualHost.getExchangeRegistry();
QueueRegistry queueRegistry = virtualHost.getQueueRegistry();
final AMQQueue queue;
final AMQShortString routingKey;
if (body.getQueue() == null)
{
AMQChannel channel = session.getChannel(channelId);
if (channel == null)
{
throw body.getChannelNotFoundException(channelId);
}
queue = channel.getDefaultQueue();
if (queue == null)
{
throw body.getChannelException(AMQConstant.NOT_FOUND, "No default queue defined on channel and queue was null");
}
if (body.getRoutingKey() == null)
{
routingKey = queue.getName();
}
else
{
routingKey = body.getRoutingKey().intern();
}
}
else
{
queue = queueRegistry.getQueue(body.getQueue());
routingKey = body.getRoutingKey() == null ? AMQShortString.EMPTY_STRING : body.getRoutingKey().intern();
}
if (queue == null)
{
throw body.getChannelException(AMQConstant.NOT_FOUND, "Queue " + body.getQueue() + " does not exist.");
}
final Exchange exch = exchangeRegistry.getExchange(body.getExchange());
if (exch == null)
{
throw body.getChannelException(AMQConstant.NOT_FOUND, "Exchange " + body.getExchange() + " does not exist.");
}
try
{
//Perform ACLs
if (!virtualHost.getAccessManager().authoriseBind(session, exch,
queue, routingKey))
{
throw body.getConnectionException(AMQConstant.ACCESS_REFUSED, "Permission denied");
}
else if (queue.isExclusive() && !queue.isDurable() && queue.getExclusiveOwner() != session)
{
throw body.getConnectionException(AMQConstant.NOT_ALLOWED,
"Queue " + queue.getName() + " is exclusive, but not created on this Connection.");
}
if (!exch.isBound(routingKey, body.getArguments(), queue))
{
queue.bind(exch, routingKey, body.getArguments());
}
}
catch (AMQInvalidRoutingKeyException rke)
{
throw body.getChannelException(AMQConstant.INVALID_ROUTING_KEY, routingKey.toString());
}
catch (AMQException e)
{
throw body.getChannelException(AMQConstant.CHANNEL_ERROR, e.toString());
}
if (_log.isInfoEnabled())
{
_log.info("Binding queue " + queue + " to exchange " + exch + " with routing key " + routingKey);
}
if (!body.getNowait())
{
MethodRegistry methodRegistry = session.getMethodRegistry();
AMQMethodBody responseBody = methodRegistry.createQueueBindOkBody();
session.writeFrame(responseBody.generateFrame(channelId));
}
}
}