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Java > Open Source Codes > org > archive > httpclient > HttpRecorderPostMethod


1 /* HttpRecorderPostMethod
2  *
3  * Created on Feb 24, 2004
4  *
5  * Copyright (C) 2003 Internet Archive.
6  *
7  * This file is part of the Heritrix web crawler (crawler.archive.org).
8  *
9  * Heritrix is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU Lesser Public License as published by
11  * the Free Software Foundation; either version 2.1 of the License, or
12  * any later version.
13  *
14  * Heritrix is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17  * GNU Lesser Public License for more details.
18  *
19  * You should have received a copy of the GNU Lesser Public License
20  * along with Heritrix; if not, write to the Free Software
21  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22  */
23 package org.archive.httpclient;
24
25 import java.io.IOException JavaDoc;
26
27 import org.apache.commons.httpclient.HttpConnection;
28 import org.apache.commons.httpclient.HttpException;
29 import org.apache.commons.httpclient.HttpState;
30 import org.apache.commons.httpclient.methods.PostMethod;
31 import org.archive.util.HttpRecorder;
32
33
34 /**
35  * Override of PostMethod that marks the passed HttpRecorder w/ the transition
36  * from HTTP head to body and that forces a close on the responseConnection.
37  *
38  * This is a copy of {@link HttpRecorderGetMethod}. Only difference is the
39  * parent subclass.
40  *
41  * @author stack
42  * @version $Date: 2005/04/07 21:44:47 $ $Revision: 1.7 $
43  */
44 public class HttpRecorderPostMethod extends PostMethod {
45     /**
46      * Instance of http recorder method.
47      */
48     protected HttpRecorderMethod httpRecorderMethod = null;
49     
50
51     public HttpRecorderPostMethod(String JavaDoc uri, HttpRecorder recorder) {
52         super(uri);
53         this.httpRecorderMethod = new HttpRecorderMethod(recorder);
54     }
55
56     protected void readResponseBody(HttpState state, HttpConnection connection)
57             throws IOException JavaDoc, HttpException {
58         // We're about to read the body. Mark transition in http recorder.
59 this.httpRecorderMethod.markContentBegin(connection);
60         super.readResponseBody(state, connection);
61     }
62
63     protected boolean shouldCloseConnection(HttpConnection conn) {
64         // Always close connection after each request. As best I can tell, this
65 // is superfluous -- we've set our client to be HTTP/1.0. Doing this
66 // out of paranoia.
67 return true;
68     }
69
70     public int execute(HttpState state, HttpConnection conn)
71             throws HttpException, IOException JavaDoc {
72         // Save off the connection so we can close it on our way out in case
73 // httpclient fails to (We're not supposed to have access to the
74 // underlying connection object; am only violating contract because
75 // see cases where httpclient is skipping out w/o cleaning up
76 // after itself).
77 this.httpRecorderMethod.setConnection(conn);
78         return super.execute(state, conn);
79     }
80     
81     protected void addProxyConnectionHeader(HttpState state, HttpConnection conn)
82             throws IOException JavaDoc, HttpException {
83         super.addProxyConnectionHeader(state, conn);
84         this.httpRecorderMethod.handleAddProxyConnectionHeader(this);
85     }
86 }
87
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