Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
FtellWriter |
|
| 1.0;1 |
1 | /* | |
2 | * $Source$ | |
3 | * $Revision$ | |
4 | * | |
5 | * Copyright (C) 2001 Myles Chippendale | |
6 | * | |
7 | * Part of Melati (http://melati.org), a framework for the rapid | |
8 | * development of clean, maintainable web applications. | |
9 | * | |
10 | * Melati is free software; Permission is granted to copy, distribute | |
11 | * and/or modify this software under the terms either: | |
12 | * | |
13 | * a) the GNU General Public License as published by the Free Software | |
14 | * Foundation; either version 2 of the License, or (at your option) | |
15 | * any later version, | |
16 | * | |
17 | * or | |
18 | * | |
19 | * b) any version of the Melati Software License, as published | |
20 | * at http://melati.org | |
21 | * | |
22 | * You should have received a copy of the GNU General Public License and | |
23 | * the Melati Software License along with this program; | |
24 | * if not, write to the Free Software Foundation, Inc., | |
25 | * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA to obtain the | |
26 | * GNU General Public License and visit http://melati.org to obtain the | |
27 | * Melati Software License. | |
28 | * | |
29 | * Feel free to contact the Developers of Melati (http://melati.org), | |
30 | * if you would like to work out a different arrangement than the options | |
31 | * outlined here. It is our intention to allow Melati to be used by as | |
32 | * wide an audience as possible. | |
33 | * | |
34 | * This program is distributed in the hope that it will be useful, | |
35 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
36 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
37 | * GNU General Public License for more details. | |
38 | * | |
39 | * Contact details for copyright holder: | |
40 | * | |
41 | * Myles Chippendale <mylesc At paneris.org> | |
42 | */ | |
43 | package org.melati.util; | |
44 | ||
45 | import java.io.Writer; | |
46 | import java.io.FilterWriter; | |
47 | import java.io.IOException; | |
48 | ||
49 | /** | |
50 | * A <code>FilterWriter</code> which knows how much it has written. | |
51 | */ | |
52 | public class FtellWriter extends FilterWriter { | |
53 | 0 | protected long position = 0; |
54 | ||
55 | /** | |
56 | * Constructor. | |
57 | * @param writer Underlying writer | |
58 | */ | |
59 | public FtellWriter(Writer writer) { | |
60 | 0 | super(writer); |
61 | 0 | } |
62 | ||
63 | /** | |
64 | * {@inheritDoc} | |
65 | * @see java.io.FilterWriter#write(int) | |
66 | */ | |
67 | public void write(int c) throws IOException { | |
68 | 0 | out.write(c); |
69 | 0 | ++position; |
70 | 0 | } |
71 | ||
72 | /** | |
73 | * {@inheritDoc} | |
74 | * @see java.io.FilterWriter#write(char[], int, int) | |
75 | */ | |
76 | public void write(char buf[], int off, int len) throws IOException { | |
77 | 0 | out.write(buf, off, len); |
78 | 0 | position += len; |
79 | 0 | } |
80 | ||
81 | /** | |
82 | * {@inheritDoc} | |
83 | * @see java.io.FilterWriter#write(java.lang.String, int, int) | |
84 | */ | |
85 | public void write(String buf, int off, int len) throws IOException { | |
86 | 0 | out.write(buf, off, len); |
87 | 0 | position += len; |
88 | 0 | } |
89 | ||
90 | /** | |
91 | * @return number of characters written | |
92 | */ | |
93 | public long ftell() { | |
94 | 0 | return position; |
95 | } | |
96 | } |