/*
*
* 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
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package org.apache.qpid.client.handler;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
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.StateAwareMethodListener;
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.framing.MethodRegistry;
public class ConnectionTuneMethodHandler implements StateAwareMethodListener<ConnectionTuneBody>
{
private static final Logger _logger = LoggerFactory.getLogger(ConnectionTuneMethodHandler.class);
private static final ConnectionTuneMethodHandler _instance = new ConnectionTuneMethodHandler();
public static ConnectionTuneMethodHandler getInstance()
{
return _instance;
}
protected ConnectionTuneMethodHandler()
{ }
public void methodReceived(AMQProtocolSession session, ConnectionTuneBody frame, int channelId)
{
_logger.debug("ConnectionTune frame received");
final MethodRegistry methodRegistry = session.getMethodRegistry();
ConnectionTuneParameters params = session.getConnectionTuneParameters();
int maxChannelNumber = frame.getChannelMax();
//0 implies no limit, except that forced by protocol limitations (0xFFFF)
params.setChannelMax(maxChannelNumber == 0 ? AMQProtocolSession.MAX_CHANNEL_MAX : maxChannelNumber);
params.setFrameMax(frame.getFrameMax());
//if the heart beat delay hasn't been configured, we use the broker-supplied value
if (params.getHeartbeat() == null)
{
params.setHeartbeat(frame.getHeartbeat());
}
session.tuneConnection(params);
session.getStateManager().changeState(AMQState.CONNECTION_NOT_OPENED);
ConnectionTuneOkBody tuneOkBody = methodRegistry.createConnectionTuneOkBody(params.getChannelMax(),
params.getFrameMax(),
params.getHeartbeat());
// Be aware of possible changes to parameter order as versions change.
session.writeFrame(tuneOkBody.generateFrame(channelId));
String host = session.getAMQConnection().getVirtualHost();
AMQShortString virtualHost = new AMQShortString("/" + host);
ConnectionOpenBody openBody = methodRegistry.createConnectionOpenBody(virtualHost,null,true);
// Be aware of possible changes to parameter order as versions change.
session.writeFrame(openBody.generateFrame(channelId));
}
}