001 /*
002 *
003 * Licensed to the Apache Software Foundation (ASF) under one
004 * or more contributor license agreements. See the NOTICE file
005 * distributed with this work for additional information
006 * regarding copyright ownership. The ASF licenses this file
007 * to you under the Apache License, Version 2.0 (the
008 * "License"); you may not use this file except in compliance
009 * with the License. You may obtain a copy of the License at
010 *
011 * http://www.apache.org/licenses/LICENSE-2.0
012 *
013 * Unless required by applicable law or agreed to in writing,
014 * software distributed under the License is distributed on an
015 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
016 * KIND, either express or implied. See the License for the
017 * specific language governing permissions and limitations
018 * under the License.
019 *
020 */
021 package org.apache.qpid.client.handler;
022
023 import org.apache.qpid.AMQChannelClosedException;
024 import org.apache.qpid.AMQException;
025 import org.apache.qpid.AMQInvalidRoutingKeyException;
026 import org.apache.qpid.client.AMQNoConsumersException;
027 import org.apache.qpid.client.AMQNoRouteException;
028 import org.apache.qpid.client.protocol.AMQProtocolSession;
029 import org.apache.qpid.client.state.StateAwareMethodListener;
030 import org.apache.qpid.framing.AMQFrame;
031 import org.apache.qpid.framing.AMQShortString;
032 import org.apache.qpid.framing.ChannelCloseBody;
033 import org.apache.qpid.framing.ChannelCloseOkBody;
034 import org.apache.qpid.protocol.AMQConstant;
035
036 import org.slf4j.Logger;
037 import org.slf4j.LoggerFactory;
038
039 public class ChannelCloseMethodHandler implements StateAwareMethodListener<ChannelCloseBody>
040 {
041 private static final Logger _logger = LoggerFactory.getLogger(ChannelCloseMethodHandler.class);
042
043 private static ChannelCloseMethodHandler _handler = new ChannelCloseMethodHandler();
044
045 public static ChannelCloseMethodHandler getInstance()
046 {
047 return _handler;
048 }
049
050 public void methodReceived(AMQProtocolSession session, ChannelCloseBody method, int channelId)
051 throws AMQException
052 {
053 _logger.debug("ChannelClose method received");
054
055 AMQConstant errorCode = AMQConstant.getConstant(method.getReplyCode());
056 AMQShortString reason = method.getReplyText();
057 if (_logger.isDebugEnabled())
058 {
059 _logger.debug("Channel close reply code: " + errorCode + ", reason: " + reason);
060 }
061
062
063
064 ChannelCloseOkBody body = session.getMethodRegistry().createChannelCloseOkBody();
065 AMQFrame frame = body.generateFrame(channelId);
066 session.writeFrame(frame);
067
068 if (errorCode != AMQConstant.REPLY_SUCCESS)
069 {
070 if (_logger.isDebugEnabled())
071 {
072 _logger.debug("Channel close received with errorCode " + errorCode + ", and reason " + reason);
073 }
074
075 if (errorCode == AMQConstant.NO_CONSUMERS)
076 {
077 throw new AMQNoConsumersException("Error: " + reason, null, null);
078 }
079 else if (errorCode == AMQConstant.NO_ROUTE)
080 {
081 throw new AMQNoRouteException("Error: " + reason, null, null);
082 }
083 else if (errorCode == AMQConstant.INVALID_ARGUMENT)
084 {
085 _logger.debug("Broker responded with Invalid Argument.");
086
087 throw new org.apache.qpid.AMQInvalidArgumentException(String.valueOf(reason), null);
088 }
089 else if (errorCode == AMQConstant.INVALID_ROUTING_KEY)
090 {
091 _logger.debug("Broker responded with Invalid Routing Key.");
092
093 throw new AMQInvalidRoutingKeyException(String.valueOf(reason), null);
094 }
095 else
096 {
097 throw new AMQChannelClosedException(errorCode, "Error: " + reason, null);
098 }
099
100 }
101 // fixme why is this only done when the close is expected...
102 // should the above forced closes not also cause a close?
103 // ----------
104 // Closing the session only when it is expected allows the errors to be processed
105 // Calling this here will prevent failover. So we should do this for all exceptions
106 // that should never cause failover. Such as authentication errors.
107
108 session.channelClosed(channelId, errorCode, String.valueOf(reason));
109 }
110 }
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