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.TxCommitBody;
26 import org.apache.qpid.framing.MethodRegistry;
27 import org.apache.qpid.framing.AMQMethodBody;
28 import org.apache.qpid.server.AMQChannel;
29 import org.apache.qpid.server.protocol.AMQProtocolSession;
30 import org.apache.qpid.server.state.AMQStateManager;
31 import org.apache.qpid.server.state.StateAwareMethodListener;
32
33 public class TxCommitHandler implements StateAwareMethodListener<TxCommitBody>
34 {
35 private static final Logger _log = Logger.getLogger(TxCommitHandler.class);
36
37 private static TxCommitHandler _instance = new TxCommitHandler();
38
39 public static TxCommitHandler getInstance()
40 {
41 return _instance;
42 }
43
44 private TxCommitHandler()
45 {
46 }
47
48 public void methodReceived(AMQStateManager stateManager, TxCommitBody body, int channelId) throws AMQException
49 {
50 AMQProtocolSession session = stateManager.getProtocolSession();
51
52 try
53 {
54 if (_log.isDebugEnabled())
55 {
56 _log.debug("Commit received on channel " + channelId);
57 }
58 AMQChannel channel = session.getChannel(channelId);
59
60 if (channel == null)
61 {
62 throw body.getChannelNotFoundException(channelId);
63 }
64
65 channel.commit();
66
67 MethodRegistry methodRegistry = session.getMethodRegistry();
68 AMQMethodBody responseBody = methodRegistry.createTxCommitOkBody();
69 session.writeFrame(responseBody.generateFrame(channelId));
70
71 channel.processReturns();
72 }
73 catch (AMQException e)
74 {
75 throw body.getChannelException(e.getErrorCode(), "Failed to commit: " + e.getMessage());
76 }
77 }
78 }
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