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.server.handler;
022
023 import org.apache.qpid.AMQException;
024 import org.apache.qpid.framing.BasicRejectBody;
025 import org.apache.qpid.server.AMQChannel;
026 import org.apache.qpid.server.queue.QueueEntry;
027 import org.apache.qpid.server.protocol.AMQProtocolSession;
028 import org.apache.qpid.server.state.AMQStateManager;
029 import org.apache.qpid.server.state.StateAwareMethodListener;
030 import org.apache.log4j.Logger;
031
032 public class BasicRejectMethodHandler implements StateAwareMethodListener<BasicRejectBody>
033 {
034 private static final Logger _logger = Logger.getLogger(BasicRejectMethodHandler.class);
035
036 private static BasicRejectMethodHandler _instance = new BasicRejectMethodHandler();
037
038 public static BasicRejectMethodHandler getInstance()
039 {
040 return _instance;
041 }
042
043 private BasicRejectMethodHandler()
044 {
045 }
046
047 public void methodReceived(AMQStateManager stateManager, BasicRejectBody body, int channelId) throws AMQException
048 {
049 AMQProtocolSession session = stateManager.getProtocolSession();
050
051 AMQChannel channel = session.getChannel(channelId);
052
053 if (channel == null)
054 {
055 throw body.getChannelNotFoundException(channelId);
056 }
057
058 if (_logger.isDebugEnabled())
059 {
060 _logger.debug("Rejecting:" + body.getDeliveryTag() +
061 ": Requeue:" + body.getRequeue() +
062 //": Resend:" + evt.getMethod().resend +
063 " on channel:" + channel.debugIdentity());
064 }
065
066 long deliveryTag = body.getDeliveryTag();
067
068 QueueEntry queueEntry = channel.getUnacknowledgedMessageMap().get(deliveryTag);
069
070 if (queueEntry == null)
071 {
072 _logger.warn("Dropping reject request as message is null for tag:" + deliveryTag);
073 // throw evt.getMethod().getChannelException(AMQConstant.NOT_FOUND, "Delivery Tag(" + deliveryTag + ")not known");
074 }
075 else
076 {
077 if (queueEntry.isQueueDeleted())
078 {
079 _logger.warn("Message's Queue as already been purged, unable to Reject. " +
080 "Dropping message should use Dead Letter Queue");
081 queueEntry = channel.getUnacknowledgedMessageMap().remove(deliveryTag);
082 if(queueEntry != null)
083 {
084 queueEntry.dequeueAndDelete(channel.getStoreContext());
085 }
086 //sendtoDeadLetterQueue(msg)
087 return;
088 }
089
090 if (queueEntry.isDeleted())
091 {
092 _logger.warn("QueueEntry as already been deleted, unable to Reject.");
093 return;
094 }
095
096
097 if (_logger.isDebugEnabled())
098 {
099 _logger.debug("Rejecting: DT:" + deliveryTag + "-" + queueEntry.getMessage().debugIdentity() +
100 ": Requeue:" + body.getRequeue() +
101 //": Resend:" + evt.getMethod().resend +
102 " on channel:" + channel.debugIdentity());
103 }
104
105 // If we haven't requested message to be resent to this consumer then reject it from ever getting it.
106 //if (!evt.getMethod().resend)
107 {
108 queueEntry.reject();
109 }
110
111 if (body.getRequeue())
112 {
113 channel.requeue(deliveryTag);
114 }
115 else
116 {
117 _logger.warn("Dropping message as requeue not required and there is no dead letter queue");
118 queueEntry = channel.getUnacknowledgedMessageMap().remove(deliveryTag);
119 //sendtoDeadLetterQueue(AMQMessage message)
120 // message.queue = channel.getDefaultDeadLetterQueue();
121 // channel.requeue(deliveryTag);
122 }
123 }
124 }
125 }
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