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.BasicRecoverBody;
26 import org.apache.qpid.framing.BasicRecoverOkBody;
27 import org.apache.qpid.framing.ProtocolVersion;
28 import org.apache.qpid.framing.AMQMethodBody;
29 import org.apache.qpid.framing.amqp_8_0.MethodRegistry_8_0;
30 import org.apache.qpid.protocol.AMQMethodEvent;
31 import org.apache.qpid.server.AMQChannel;
32 import org.apache.qpid.server.protocol.AMQProtocolSession;
33 import org.apache.qpid.server.state.AMQStateManager;
34 import org.apache.qpid.server.state.StateAwareMethodListener;
35
36 public class BasicRecoverMethodHandler implements StateAwareMethodListener<BasicRecoverBody>
37 {
38 private static final Logger _logger = Logger.getLogger(BasicRecoverMethodHandler.class);
39
40 private static final BasicRecoverMethodHandler _instance = new BasicRecoverMethodHandler();
41
42 public static BasicRecoverMethodHandler getInstance()
43 {
44 return _instance;
45 }
46
47 public void methodReceived(AMQStateManager stateManager, BasicRecoverBody body, int channelId) throws AMQException
48 {
49 AMQProtocolSession session = stateManager.getProtocolSession();
50
51 _logger.debug("Recover received on protocol session " + session + " and channel " + channelId);
52 AMQChannel channel = session.getChannel(channelId);
53
54
55 if (channel == null)
56 {
57 throw body.getChannelNotFoundException(channelId);
58 }
59
60 channel.resend(body.getRequeue());
61
62 // Qpid 0-8 hacks a synchronous -ok onto recover.
63 // In Qpid 0-9 we create a separate sync-recover, sync-recover-ok pair to be "more" compliant
64 if(session.getProtocolVersion().equals(ProtocolVersion.v8_0))
65 {
66 MethodRegistry_8_0 methodRegistry = (MethodRegistry_8_0) session.getMethodRegistry();
67 AMQMethodBody recoverOk = methodRegistry.createBasicRecoverOkBody();
68 session.writeFrame(recoverOk.generateFrame(channelId));
69
70 }
71
72 }
73 }
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