1 /*
2 * $Header: /home/cvs/jakarta-commons/httpclient/src/java/org/apache/commons/httpclient/WireLogInputStream.java,v 1.12.2.2 2004/06/25 03:27:40 mbecke Exp $
3 * $Revision: 1.12.2.2 $
4 * $Date: 2004/06/25 03:27:40 $
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 * [Additional notices, if required by prior licensing conditions]
29 *
30 */
31
32 package org.apache.commons.httpclient;
33
34 import java.io.FilterInputStream;
35 import java.io.IOException;
36 import java.io.InputStream;
37
38 /***
39 * Logs all data read to the wire LOG.
40 *
41 * @author Ortwin Gl�ck
42 * @author <a href="mailto:mbowler@GargoyleSoftware.com">Mike Bowler</a>
43 * @author <a href="mailto:oleg@ural.ru">Oleg Kalnichevski</a>
44 *
45 * @since 2.0
46 */
47
48 class WireLogInputStream extends FilterInputStream {
49
50 /*** Original input stream. */
51 private InputStream in;
52
53 /*** The wire log to use for writing. */
54 private Wire wire;
55
56 /***
57 * Create an instance that wraps the specified input stream.
58 * @param in The input stream.
59 * @param wire The wire log to use.
60 */
61 public WireLogInputStream(InputStream in, Wire wire) {
62 super(in);
63 this.in = in;
64 this.wire = wire;
65 }
66 /***
67 *
68 * @see java.io.InputStream#read(byte[], int, int)
69 */
70 public int read(byte[] b, int off, int len) throws IOException {
71 int l = this.in.read(b, off, len);
72 if (l > 0) {
73 wire.input(b, off, l);
74 }
75 return l;
76 }
77
78 /***
79 *
80 * @see java.io.InputStream#read()
81 */
82 public int read() throws IOException {
83 int l = this.in.read();
84 if (l > 0) {
85 wire.input(l);
86 }
87 return l;
88 }
89
90 /***
91 *
92 * @see java.io.InputStream#read(byte[])
93 */
94 public int read(byte[] b) throws IOException {
95 int l = this.in.read(b);
96 if (l > 0) {
97 wire.input(b, 0, l);
98 }
99 return l;
100 }
101 }