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.http;
21
22 import org.apache.mina.core.filterchain.IoFilter;
23 import org.apache.mina.core.session.IoSession;
24 import org.apache.mina.filter.codec.ProtocolCodecFilter;
25 import org.apache.mina.filter.codec.ProtocolDecoder;
26 import org.apache.mina.filter.codec.ProtocolEncoder;
27
28 /**
29 * The HTTP server codec
30 *
31 * @author <a href="http://mina.apache.org">Apache MINA Project</a>
32 */
33 public class HttpServerCodec extends ProtocolCodecFilter {
34
35 /** Key for decoder current state */
36 private static final String DECODER_STATE_ATT = "http.ds";
37
38 /** Key for the partial HTTP requests head */
39 private static final String PARTIAL_HEAD_ATT = "http.ph";
40
41 /** The encoder instance */
42 private static ProtocolEncoder encoder = new HttpServerEncoder();
43
44 /** The decoder instance */
45 private static ProtocolDecoder decoder = new HttpServerDecoder();
46
47 /**
48 * Creates a new HttpServerCodec instance
49 */
50 public HttpServerCodec() {
51 super(encoder, decoder);
52 }
53
54 /**
55 * {@inheritDoc}
56 */
57 @Override
58 public void sessionClosed(IoFilter.NextFilter nextFilter, IoSession session) throws Exception {
59 super.sessionClosed(nextFilter, session);
60 session.removeAttribute(DECODER_STATE_ATT);
61 session.removeAttribute(PARTIAL_HEAD_ATT);
62 }
63 }