1 /* OpenLogViewer
2 *
3 * Copyright 2011
4 *
5 * This file is part of the OpenLogViewer project.
6 *
7 * OpenLogViewer software is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation, either version 3 of the License, or
10 * (at your option) any later version.
11 *
12 * OpenLogViewer software is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with any OpenLogViewer software. If not, see http://www.gnu.org/licenses/
19 *
20 * I ask that if you make any changes to this file you fork the code on github.com!
21 *
22 */
23
24 package org.diyefi.openlogviewer.utils;
25
26 import java.io.File;
27
28
29 public final class Utilities {
30 /**
31 * Prevent instantiation.
32 */
33 private Utilities() {
34 }
35
36 public static String getExtension(final File f) {
37 String ext = null;
38 final String s = f.getName();
39 final int i = s.lastIndexOf('.');
40
41 if (i > 0 && i < s.length() - 1) {
42 ext = s.substring(i + 1).toLowerCase();
43 }
44 return ext;
45 }
46 }