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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 }