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