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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.client.handler;
import org.apache.log4j.Logger;
import org.apache.qpid.AMQException;
import org.apache.qpid.client.ConnectionTuneParameters;
import org.apache.qpid.client.protocol.AMQProtocolSession;
import org.apache.qpid.client.state.AMQState;
import org.apache.qpid.client.state.AMQStateManager;
import org.apache.qpid.client.state.StateAwareMethodListener;
import org.apache.qpid.framing.AMQFrame;
import org.apache.qpid.framing.AMQShortString;
import org.apache.qpid.framing.ConnectionOpenBody;
import org.apache.qpid.framing.ConnectionTuneBody;
import org.apache.qpid.framing.ConnectionTuneOkBody;
import org.apache.qpid.protocol.AMQMethodEvent;
public class ConnectionTuneMethodHandler implements StateAwareMethodListener
{
private static final Logger _logger = Logger.getLogger(ConnectionTuneMethodHandler.class);
private static final ConnectionTuneMethodHandler _instance = new ConnectionTuneMethodHandler();
public static ConnectionTuneMethodHandler getInstance()
{
return _instance;
}
protected ConnectionTuneMethodHandler()
{
}
public void methodReceived(AMQStateManager stateManager, AMQProtocolSession protocolSession, AMQMethodEvent evt) throws AMQException
{
_logger.debug("ConnectionTune frame received");
ConnectionTuneBody frame = (ConnectionTuneBody) evt.getMethod();
ConnectionTuneParameters params = protocolSession.getConnectionTuneParameters();
if (params == null)
{
params = new ConnectionTuneParameters();
}
params.setFrameMax(frame.frameMax);
params.setChannelMax(frame.channelMax);
params.setHeartbeat(Integer.getInteger("amqj.heartbeat.delay", frame.heartbeat));
protocolSession.setConnectionTuneParameters(params);
stateManager.changeState(AMQState.CONNECTION_NOT_OPENED);
protocolSession.writeFrame(createTuneOkFrame(evt.getChannelId(), params,frame.getMajor(), frame.getMinor()));
String host = protocolSession.getAMQConnection().getVirtualHost();
AMQShortString virtualHost = new AMQShortString("/" + host);
protocolSession.writeFrame(createConnectionOpenFrame(evt.getChannelId(), virtualHost, null, true,frame.getMajor(), frame.getMinor()));
}
protected AMQFrame createConnectionOpenFrame(int channel, AMQShortString path, AMQShortString capabilities, boolean insist, byte major, byte minor)
{
// Be aware of possible changes to parameter order as versions change.
return ConnectionOpenBody.createAMQFrame(channel,
major, minor, // AMQP version (major, minor)
capabilities, // capabilities
insist, // insist
path); // virtualHost
}
protected AMQFrame createTuneOkFrame(int channel, ConnectionTuneParameters params, byte major, byte minor)
{
// Be aware of possible changes to parameter order as versions change.
return ConnectionTuneOkBody.createAMQFrame(channel,
major, minor,
params.getChannelMax(), // channelMax
params.getFrameMax(), // frameMax
params.getHeartbeat()); // heartbeat
}
}
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