Source code: org/apache/http/contrib/compress/ResponseGzipUncompress.java
1 /*
2 * $HeadURL: https://svn.apache.org/repos/asf/jakarta/httpcomponents/httpcore/tags/4.0-alpha2/src/contrib/org/apache/http/contrib/compress/ResponseGzipUncompress.java $
3 * $Revision: 378645 $
4 * $Date: 2006-02-17 23:34:54 +0100 (Fri, 17 Feb 2006) $
5 *
6 * ====================================================================
7 *
8 * Copyright 1999-2006 The Apache Software Foundation
9 *
10 * Licensed under the Apache License, Version 2.0 (the "License");
11 * you may not use this file except in compliance with the License.
12 * You may obtain a copy of the License at
13 *
14 * http://www.apache.org/licenses/LICENSE-2.0
15 *
16 * Unless required by applicable law or agreed to in writing, software
17 * distributed under the License is distributed on an "AS IS" BASIS,
18 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
19 * See the License for the specific language governing permissions and
20 * limitations under the License.
21 * ====================================================================
22 *
23 * This software consists of voluntary contributions made by many
24 * individuals on behalf of the Apache Software Foundation. For more
25 * information on the Apache Software Foundation, please see
26 * <http://www.apache.org/>.
27 *
28 */
29
30 package org.apache.http.contrib.compress;
31
32 import java.io.IOException;
33
34 import org.apache.http.Header;
35 import org.apache.http.HeaderElement;
36 import org.apache.http.HttpEntity;
37 import org.apache.http.HttpException;
38 import org.apache.http.HttpResponse;
39 import org.apache.http.HttpResponseInterceptor;
40 import org.apache.http.protocol.HttpContext;
41
42 /**
43 * <p>
44 * </p>
45 * @author <a href="mailto:oleg at ural.ru">Oleg Kalnichevski</a>
46 *
47 * @version $Revision: 378645 $
48 *
49 * @since 4.0
50 */
51 public class ResponseGzipUncompress implements HttpResponseInterceptor {
52
53 private static final String GZIP_CODEC = "gzip";
54
55 public void process(final HttpResponse response, final HttpContext context)
56 throws HttpException, IOException {
57 if (context == null) {
58 throw new IllegalArgumentException("HTTP context may not be null");
59 }
60 HttpEntity entity = response.getEntity();
61 Header ceheader = entity.getContentEncoding();
62 if (ceheader != null) {
63 HeaderElement[] codecs = ceheader.getElements();
64 for (int i = 0; i < codecs.length; i++) {
65 if (codecs[i].getName().equalsIgnoreCase(GZIP_CODEC)) {
66 response.setEntity(new GzipDecompressingEntity(response.getEntity()));
67 return;
68 }
69 }
70 }
71 }
72
73 }