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* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
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*
* 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
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package org.apache.qpid.client.handler;
import org.apache.qpid.AMQChannelClosedException;
import org.apache.qpid.AMQException;
import org.apache.qpid.AMQInvalidRoutingKeyException;
import org.apache.qpid.client.AMQNoConsumersException;
import org.apache.qpid.client.AMQNoRouteException;
import org.apache.qpid.client.protocol.AMQProtocolSession;
import org.apache.qpid.client.state.StateAwareMethodListener;
import org.apache.qpid.framing.AMQFrame;
import org.apache.qpid.framing.AMQShortString;
import org.apache.qpid.framing.ChannelCloseBody;
import org.apache.qpid.framing.ChannelCloseOkBody;
import org.apache.qpid.protocol.AMQConstant;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class ChannelCloseMethodHandler implements StateAwareMethodListener<ChannelCloseBody>
{
private static final Logger _logger = LoggerFactory.getLogger(ChannelCloseMethodHandler.class);
private static ChannelCloseMethodHandler _handler = new ChannelCloseMethodHandler();
public static ChannelCloseMethodHandler getInstance()
{
return _handler;
}
public void methodReceived(AMQProtocolSession session, ChannelCloseBody method, int channelId)
throws AMQException
{
_logger.debug("ChannelClose method received");
AMQConstant errorCode = AMQConstant.getConstant(method.getReplyCode());
AMQShortString reason = method.getReplyText();
if (_logger.isDebugEnabled())
{
_logger.debug("Channel close reply code: " + errorCode + ", reason: " + reason);
}
ChannelCloseOkBody body = session.getMethodRegistry().createChannelCloseOkBody();
AMQFrame frame = body.generateFrame(channelId);
session.writeFrame(frame);
try
{
if (errorCode != AMQConstant.REPLY_SUCCESS)
{
if (_logger.isDebugEnabled())
{
_logger.debug("Channel close received with errorCode " + errorCode + ", and reason " + reason);
}
if (errorCode == AMQConstant.NO_CONSUMERS)
{
throw new AMQNoConsumersException("Error: " + reason, null, null);
}
else if (errorCode == AMQConstant.NO_ROUTE)
{
throw new AMQNoRouteException("Error: " + reason, null, null);
}
else if (errorCode == AMQConstant.ARGUMENT_INVALID)
{
_logger.debug("Broker responded with Invalid Argument.");
throw new org.apache.qpid.AMQInvalidArgumentException(String.valueOf(reason), null);
}
else if (errorCode == AMQConstant.INVALID_ROUTING_KEY)
{
_logger.debug("Broker responded with Invalid Routing Key.");
throw new AMQInvalidRoutingKeyException(String.valueOf(reason), null);
}
else
{
throw new AMQChannelClosedException(errorCode, "Error: " + reason, null);
}
}
}
finally
{
// fixme why is this only done when the close is expected...
// should the above forced closes not also cause a close?
// ----------
// Closing the session only when it is expected allows the errors to be processed
// Calling this here will prevent failover. So we should do this for all exceptions
// that should never cause failover. Such as authentication errors.
// ----
// 2009-09-07 - ritchiem
// calling channelClosed will only close this session and will not
// prevent failover. If we don't close the session here then we will
// have problems during the session close as it will attempt to
// close the session that the broker has closed,
session.channelClosed(channelId, errorCode, String.valueOf(reason));
}
}
}