1 /*
2 * $Header: /home/jerenkrantz/tmp/commons/commons-convert/cvs/home/cvs/jakarta-commons//httpclient/src/java/org/apache/commons/httpclient/WireLogInputStream.java,v 1.15 2004/06/24 21:39:52 mbecke Exp $
3 * $Revision: 155418 $
4 * $Date: 2005-02-26 08:01:52 -0500 (Sat, 26 Feb 2005) $
5 *
6 * ====================================================================
7 *
8 * Copyright 1999-2004 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.commons.httpclient;
31
32 import java.io.FilterInputStream;
33 import java.io.IOException;
34 import java.io.InputStream;
35
36 /***
37 * Logs all data read to the wire LOG.
38 *
39 * @author Ortwin Gl�ck
40 * @author <a href="mailto:mbowler@GargoyleSoftware.com">Mike Bowler</a>
41 * @author <a href="mailto:oleg@ural.ru">Oleg Kalnichevski</a>
42 *
43 * @since 2.0
44 */
45 class WireLogInputStream extends FilterInputStream {
46
47 /*** Original input stream. */
48 private InputStream in;
49
50 /*** The wire log to use for writing. */
51 private Wire wire;
52
53 /***
54 * Create an instance that wraps the specified input stream.
55 * @param in The input stream.
56 * @param wire The wire log to use.
57 */
58 public WireLogInputStream(InputStream in, Wire wire) {
59 super(in);
60 this.in = in;
61 this.wire = wire;
62 }
63 /***
64 *
65 * @see java.io.InputStream#read(byte[], int, int)
66 */
67 public int read(byte[] b, int off, int len) throws IOException {
68 int l = this.in.read(b, off, len);
69 if (l > 0) {
70 wire.input(b, off, l);
71 }
72 return l;
73 }
74
75 /***
76 *
77 * @see java.io.InputStream#read()
78 */
79 public int read() throws IOException {
80 int l = this.in.read();
81 if (l > 0) {
82 wire.input(l);
83 }
84 return l;
85 }
86
87 /***
88 *
89 * @see java.io.InputStream#read(byte[])
90 */
91 public int read(byte[] b) throws IOException {
92 int l = this.in.read(b);
93 if (l > 0) {
94 wire.input(b, 0, l);
95 }
96 return l;
97 }
98 }