1 | /* |
2 | * @(#) $Id: ResultMessageEncoder.java 332218 2005-11-10 03:52:42Z trustin $ |
3 | * |
4 | * Copyright 2004 The Apache Software Foundation |
5 | * |
6 | * Licensed under the Apache License, Version 2.0 (the "License"); |
7 | * you may not use this file except in compliance with the License. |
8 | * You may obtain a copy of the License at |
9 | * |
10 | * http://www.apache.org/licenses/LICENSE-2.0 |
11 | * |
12 | * Unless required by applicable law or agreed to in writing, software |
13 | * distributed under the License is distributed on an "AS IS" BASIS, |
14 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
15 | * See the License for the specific language governing permissions and |
16 | * limitations under the License. |
17 | * |
18 | */ |
19 | package org.apache.mina.examples.sumup.codec; |
20 | |
21 | import java.util.Collections; |
22 | import java.util.HashSet; |
23 | import java.util.Set; |
24 | |
25 | import org.apache.mina.common.ByteBuffer; |
26 | import org.apache.mina.examples.sumup.message.AbstractMessage; |
27 | import org.apache.mina.examples.sumup.message.ResultMessage; |
28 | import org.apache.mina.protocol.ProtocolSession; |
29 | import org.apache.mina.protocol.codec.MessageEncoder; |
30 | |
31 | /** |
32 | * A {@link MessageEncoder} that encodes {@link ResultMessage}. |
33 | * |
34 | * @author The Apache Directory Project |
35 | * @version $Rev: 332218 $, $Date: 2005-11-10 12:52:42 +0900 $ |
36 | */ |
37 | public class ResultMessageEncoder extends AbstractMessageEncoder |
38 | { |
39 | private static final Set TYPES; |
40 | |
41 | static |
42 | { |
43 | Set types = new HashSet(); |
44 | types.add( ResultMessage.class ); |
45 | TYPES = Collections.unmodifiableSet( types ); |
46 | } |
47 | |
48 | public ResultMessageEncoder() |
49 | { |
50 | super( Constants.RESULT ); |
51 | } |
52 | |
53 | protected void encodeBody( ProtocolSession session, AbstractMessage message, ByteBuffer out ) |
54 | { |
55 | ResultMessage m = ( ResultMessage ) message; |
56 | if( m.isOk() ) |
57 | { |
58 | out.putShort( ( short ) Constants.RESULT_OK ); |
59 | out.putInt( m.getValue() ); |
60 | } |
61 | else |
62 | { |
63 | out.putShort( ( short ) Constants.RESULT_ERROR ); |
64 | } |
65 | } |
66 | |
67 | public Set getMessageTypes() |
68 | { |
69 | return TYPES; |
70 | } |
71 | |
72 | } |