1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. 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,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 *
19 */
20 package org.apache.mina.example.imagine.step1.codec;
21
22 import org.apache.mina.core.buffer.IoBuffer;
23 import org.apache.mina.core.session.IoSession;
24 import org.apache.mina.example.imagine.step1.ImageRequest;
25 import org.apache.mina.filter.codec.ProtocolEncoder;
26 import org.apache.mina.filter.codec.ProtocolEncoderOutput;
27
28 /**
29 * an encoder for {@link ImageRequest} objects
30 *
31 * @author The Apache MINA Project (dev@mina.apache.org)
32 * @version $Rev$, $Date$
33 */
34
35 public class ImageRequestEncoder implements ProtocolEncoder {
36
37 public void encode(IoSession session, Object message, ProtocolEncoderOutput out) throws Exception {
38 ImageRequest request = (ImageRequest) message;
39 IoBuffer buffer = IoBuffer.allocate(12, false);
40 buffer.putInt(request.getWidth());
41 buffer.putInt(request.getHeight());
42 buffer.putInt(request.getNumberOfCharacters());
43 buffer.flip();
44 out.write(buffer);
45 }
46
47 public void dispose(IoSession session) throws Exception {
48 // nothing to dispose
49 }
50 }