KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > com > quadcap > io > TraceOutputStream


1 package com.quadcap.io;
2
3 /* Copyright 1997 - 2003 Quadcap Software. All rights reserved.
4  *
5  * This software is distributed under the Quadcap Free Software License.
6  * This software may be used or modified for any purpose, personal or
7  * commercial. Open Source redistributions are permitted. Commercial
8  * redistribution of larger works derived from, or works which bundle
9  * this software requires a "Commercial Redistribution License"; see
10  * http://www.quadcap.com/purchase.
11  *
12  * Redistributions qualify as "Open Source" under one of the following terms:
13  *
14  * Redistributions are made at no charge beyond the reasonable cost of
15  * materials and delivery.
16  *
17  * Redistributions are accompanied by a copy of the Source Code or by an
18  * irrevocable offer to provide a copy of the Source Code for up to three
19  * years at the cost of materials and delivery. Such redistributions
20  * must allow further use, modification, and redistribution of the Source
21  * Code under substantially the same terms as this license.
22  *
23  * Redistributions of source code must retain the copyright notices as they
24  * appear in each source code file, these license terms, and the
25  * disclaimer/limitation of liability set forth as paragraph 6 below.
26  *
27  * Redistributions in binary form must reproduce this Copyright Notice,
28  * these license terms, and the disclaimer/limitation of liability set
29  * forth as paragraph 6 below, in the documentation and/or other materials
30  * provided with the distribution.
31  *
32  * The Software is provided on an "AS IS" basis. No warranty is
33  * provided that the Software is free of defects, or fit for a
34  * particular purpose.
35  *
36  * Limitation of Liability. Quadcap Software shall not be liable
37  * for any damages suffered by the Licensee or any third party resulting
38  * from use of the Software.
39  */
40
41 import java.io.*;
42
43 import com.quadcap.util.Debug;
44 import com.quadcap.util.Util;
45
46 /**
47  * A filter output stream that simply keeps track of the count of bytes written.
48  *
49  * @author Stan Bailes
50  */
51
52 public class TraceOutputStream extends OutputStream {
53     OutputStream out;
54     
55     public TraceOutputStream(OutputStream os) {
56     this.out = os;
57     }
58
59     public void write(int b) throws IOException {
60     out.write(b);
61     Debug.println("write: " + b + " [" + Integer.toHexString(b) + "]");
62     }
63
64     public void write(byte[] buf, int offset, int len) throws IOException {
65     out.write(buf, offset, len);
66         Debug.println("write: " + Util.strBytes(buf, offset, len));
67     }
68
69     public void write(byte[] buf) throws IOException {
70     out.write(buf);
71         Debug.println("write: " + Util.strBytes(buf));
72     }
73
74     public void flush() throws IOException {
75         Debug.println("flush");
76     out.flush();
77     }
78     
79     public void close() throws IOException {
80     out.close();
81     }
82
83 }
84
Popular Tags