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.qpid.AMQException;
24 import org.apache.qpid.framing.TxSelectBody;
25 import org.apache.qpid.framing.TxSelectOkBody;
26 import org.apache.qpid.framing.MethodRegistry;
27 import org.apache.qpid.protocol.AMQMethodEvent;
28 import org.apache.qpid.server.protocol.AMQProtocolSession;
29 import org.apache.qpid.server.state.AMQStateManager;
30 import org.apache.qpid.server.state.StateAwareMethodListener;
31 import org.apache.qpid.server.AMQChannel;
32
33 public class TxSelectHandler implements StateAwareMethodListener<TxSelectBody>
34 {
35 private static TxSelectHandler _instance = new TxSelectHandler();
36
37 public static TxSelectHandler getInstance()
38 {
39 return _instance;
40 }
41
42 private TxSelectHandler()
43 {
44 }
45
46 public void methodReceived(AMQStateManager stateManager, TxSelectBody body, int channelId) throws AMQException
47 {
48 AMQProtocolSession session = stateManager.getProtocolSession();
49
50 AMQChannel channel = session.getChannel(channelId);
51
52 if (channel == null)
53 {
54 throw body.getChannelNotFoundException(channelId);
55 }
56
57 channel.setLocalTransactional();
58
59 MethodRegistry methodRegistry = session.getMethodRegistry();
60 TxSelectOkBody responseBody = methodRegistry.createTxSelectOkBody();
61 session.writeFrame(responseBody.generateFrame(channelId));
62 }
63 }
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