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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.protocol.v0_8.handler;
import org.apache.log4j.Logger;
import org.apache.qpid.AMQConnectionException;
import org.apache.qpid.AMQException;
import org.apache.qpid.framing.ConnectionTuneOkBody;
import org.apache.qpid.protocol.AMQConstant;
import org.apache.qpid.server.model.Broker;
import org.apache.qpid.server.protocol.v0_8.AMQProtocolSession;
import org.apache.qpid.server.protocol.v0_8.state.AMQState;
import org.apache.qpid.server.protocol.v0_8.state.AMQStateManager;
import org.apache.qpid.server.protocol.v0_8.state.StateAwareMethodListener;
public class ConnectionTuneOkMethodHandler implements StateAwareMethodListener<ConnectionTuneOkBody>
{
private static final Logger _logger = Logger.getLogger(ConnectionTuneOkMethodHandler.class);
private static ConnectionTuneOkMethodHandler _instance = new ConnectionTuneOkMethodHandler();
public static ConnectionTuneOkMethodHandler getInstance()
{
return _instance;
}
public void methodReceived(AMQStateManager stateManager, ConnectionTuneOkBody body, int channelId) throws AMQException
{
AMQProtocolSession session = stateManager.getProtocolSession();
if (_logger.isDebugEnabled())
{
_logger.debug(body);
}
stateManager.changeState(AMQState.CONNECTION_NOT_OPENED);
session.initHeartbeats(body.getHeartbeat());
int brokerFrameMax = stateManager.getBroker().getContextValue(Integer.class,Broker.BROKER_FRAME_SIZE);
if(brokerFrameMax <= 0)
{
brokerFrameMax = Integer.MAX_VALUE;
}
if(body.getFrameMax() > (long) brokerFrameMax)
{
throw new AMQConnectionException(AMQConstant.SYNTAX_ERROR,
"Attempt to set max frame size to " + body.getFrameMax()
+ "greater than the broker will allow: "
+ brokerFrameMax,
body.getClazz(), body.getMethod(),
body.getMajor(), body.getMinor(),null);
}
else if(body.getFrameMax() > 0 && body.getFrameMax() < AMQConstant.FRAME_MIN_SIZE.getCode())
{
throw new AMQConnectionException(AMQConstant.SYNTAX_ERROR,
"Attempt to set max frame size to " + body.getFrameMax()
+ "which is smaller than the specification definined minimum: "
+ AMQConstant.FRAME_MIN_SIZE.getCode(),
body.getClazz(), body.getMethod(),
body.getMajor(), body.getMinor(),null);
}
int frameMax = body.getFrameMax() == 0 ? brokerFrameMax : (int) body.getFrameMax();
session.setMaxFrameSize(frameMax);
long maxChannelNumber = body.getChannelMax();
//0 means no implied limit, except that forced by protocol limitations (0xFFFF)
session.setMaximumNumberOfChannels( maxChannelNumber == 0 ? 0xFFFFL : maxChannelNumber);
}
}
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