01 /*
02 *
03 * Licensed to the Apache Software Foundation (ASF) under one
04 * or more contributor license agreements. See the NOTICE file
05 * distributed with this work for additional information
06 * regarding copyright ownership. The ASF licenses this file
07 * to you under the Apache License, Version 2.0 (the
08 * "License"); you may not use this file except in compliance
09 * with the License. You may obtain a copy of the License at
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing,
14 * software distributed under the License is distributed on an
15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16 * KIND, either express or implied. See the License for the
17 * specific language governing permissions and limitations
18 * under the License.
19 *
20 */
21 package org.apache.qpid.server.handler;
22
23 import org.apache.log4j.Logger;
24 import org.apache.qpid.AMQException;
25 import org.apache.qpid.framing.AMQFrame;
26 import org.apache.qpid.framing.ChannelCloseBody;
27 import org.apache.qpid.framing.ChannelCloseOkBody;
28 import org.apache.qpid.framing.MethodRegistry;
29 import org.apache.qpid.protocol.AMQMethodEvent;
30 import org.apache.qpid.protocol.AMQConstant;
31 import org.apache.qpid.server.protocol.AMQProtocolSession;
32 import org.apache.qpid.server.state.AMQStateManager;
33 import org.apache.qpid.server.state.StateAwareMethodListener;
34 import org.apache.qpid.server.AMQChannel;
35
36 public class ChannelCloseHandler implements StateAwareMethodListener<ChannelCloseBody>
37 {
38 private static final Logger _logger = Logger.getLogger(ChannelCloseHandler.class);
39
40 private static ChannelCloseHandler _instance = new ChannelCloseHandler();
41
42 public static ChannelCloseHandler getInstance()
43 {
44 return _instance;
45 }
46
47 private ChannelCloseHandler()
48 {
49 }
50
51 public void methodReceived(AMQStateManager stateManager, ChannelCloseBody body, int channelId) throws AMQException
52 {
53 AMQProtocolSession session = stateManager.getProtocolSession();
54
55 if (_logger.isInfoEnabled())
56 {
57 _logger.info("Received channel close for id " + channelId + " citing class " + body.getClassId() +
58 " and method " + body.getMethodId());
59 }
60
61
62 AMQChannel channel = session.getChannel(channelId);
63
64 if (channel == null)
65 {
66 throw body.getConnectionException(AMQConstant.CHANNEL_ERROR, "Trying to close unknown channel");
67 }
68
69 session.closeChannel(channelId);
70 // Client requested closure so we don't wait for ok we send it
71 stateManager.getProtocolSession().closeChannelOk(channelId);
72
73 MethodRegistry methodRegistry = session.getMethodRegistry();
74 ChannelCloseOkBody responseBody = methodRegistry.createChannelCloseOkBody();
75 session.writeFrame(responseBody.generateFrame(channelId));
76 }
77 }
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