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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.
*
*/
package org.apache.qpid.server.handler;
import org.apache.qpid.AMQException;
import org.apache.qpid.framing.AMQFrame;
import org.apache.qpid.framing.ConnectionOpenBody;
import org.apache.qpid.framing.ConnectionOpenOkBody;
import org.apache.qpid.framing.AMQShortString;
import org.apache.qpid.server.exchange.ExchangeRegistry;
import org.apache.qpid.protocol.AMQMethodEvent;
import org.apache.qpid.protocol.AMQConstant;
import org.apache.qpid.server.protocol.AMQProtocolSession;
import org.apache.qpid.server.queue.QueueRegistry;
import org.apache.qpid.server.state.AMQState;
import org.apache.qpid.server.state.AMQStateManager;
import org.apache.qpid.server.state.StateAwareMethodListener;
import org.apache.qpid.server.virtualhost.VirtualHost;
public class ConnectionOpenMethodHandler implements StateAwareMethodListener<ConnectionOpenBody>
{
private static ConnectionOpenMethodHandler _instance = new ConnectionOpenMethodHandler();
public static ConnectionOpenMethodHandler getInstance()
{
return _instance;
}
private ConnectionOpenMethodHandler()
{
}
private static AMQShortString generateClientID()
{
return new AMQShortString(Long.toString(System.currentTimeMillis()));
}
public void methodReceived(AMQStateManager stateManager, AMQMethodEvent<ConnectionOpenBody> evt) throws AMQException
{
AMQProtocolSession session = stateManager.getProtocolSession();
ConnectionOpenBody body = evt.getMethod();
String virtualHostName = String.valueOf(body.virtualHost);
VirtualHost virtualHost = stateManager.getVirtualHostRegistry().getVirtualHost(virtualHostName);
if(virtualHost == null)
{
throw body.getConnectionException(AMQConstant.NOT_FOUND.getCode(), "Unknown virtual host: " + virtualHostName);
}
else
{
session.setVirtualHost( virtualHost );
// See Spec (0.8.2). Section 3.1.2 Virtual Hosts
if (session.getContextKey() == null)
{
session.setContextKey(generateClientID());
}
// AMQP version change: Hardwire the version to 0-8 (major=8, minor=0)
// TODO: Connect this to the session version obtained from ProtocolInitiation for this session.
// Be aware of possible changes to parameter order as versions change.
AMQFrame response = ConnectionOpenOkBody.createAMQFrame((short)0,
(byte)8, (byte)0, // AMQP version (major, minor)
body.virtualHost);
stateManager.changeState(AMQState.CONNECTION_OPEN);
session.writeFrame(response);
}
}
}
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