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 client codec
30 * @author <a href="http://mina.apache.org">Apache MINA Project</a>
31 */
32 public class HttpClientCodec extends ProtocolCodecFilter {
33
34 /** Key for decoder current state */
35 private static final String DECODER_STATE_ATT = "http.ds";
36
37 /** Key for the partial HTTP requests head */
38 private static final String PARTIAL_HEAD_ATT = "http.ph";
39
40 private static ProtocolEncoder encoder = new HttpClientEncoder();
41 private static ProtocolDecoder decoder = new HttpClientDecoder();
42
43 /**
44 * Creates a new HttpClientCodec instance
45 */
46 public HttpClientCodec() {
47 super(encoder, decoder);
48 }
49
50 /**
51 * {@inheritDoc}
52 */
53 @Override
54 public void sessionClosed(IoFilter.NextFilter nextFilter, IoSession session) throws Exception {
55 super.sessionClosed(nextFilter, session);
56 session.removeAttribute(DECODER_STATE_ATT);
57 session.removeAttribute(PARTIAL_HEAD_ATT);
58 }
59 }