1 /********************************************************************************
2 *InternetCafe is a software solution that helps the management of Cybercafes
3 * according with the ITALIAN DECREE LAW ON ANTI-TERROR MEASURES, 27 JULY 2005.
4 * Copyright (C) 2006 Guido Angelo Ingenito
5
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version 2
9 * of the License, or (at your option) any later version.
10
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
19 *******************************************************************************/
20
21 package base.jdbs;
22
23 import java.io.File;
24
25 import org.apache.log4j.Logger;
26
27 import base.util.FileUtil;
28
29 /***
30 * @author skunk
31 *
32 */
33 public class FileDescriptor {
34
35 private static final transient Logger logger = Logger
36 .getLogger(FileDescriptor.class.getName());
37
38 private long lastModified = -1;
39
40 private long size = -1;
41
42 private final File file;
43
44 public FileDescriptor(File file) {
45 this.file = file;
46 this.lastModified = file.lastModified();
47 }
48
49 /***
50 * @return Returns the file.
51 */
52 public File getFile() {
53 return file;
54 }
55
56 /***
57 * @return Returns the size.
58 */
59 public long getSize() {
60 if (size == -1 || file.lastModified() > lastModified) {
61 this.size = FileUtil.fileSizeInKB(file);
62 lastModified = file.lastModified();
63 }
64 return size;
65 }
66 }