1 /*
2 Copyright (C) 2003 Grid Systems, S.A.
3
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License, version 2, as
6 published by the Free Software Foundation.
7
8 This program is distributed in the hope that it will be useful,
9 but WITHOUT ANY WARRANTY; without even the implied warranty of
10 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 GNU General Public License for more details.
12
13 You should have received a copy of the GNU General Public License
14 along with this program; if not, write to the Free Software
15 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
16 */
17 package com.gridsystems.systemutils;
18
19 /**
20 * Utility methods.
21 *
22 * @author Xmas
23 * @version 1.0
24 */
25 final class JNISystemUtils {
26
27 /** Private constructor. */
28 private JNISystemUtils() { }
29
30 static {
31 // Extract from the jar the shared library for the host OS
32 Class myclass = com.gridsystems.systemutils.SystemUtils.class;
33 String lib = "SystemUtils";
34 try {
35 com.gridsystems.utils.SystemUtils.extractDynamicLibrary(lib, myclass);
36 } catch (Exception ex) {
37 System.err.println("Cannot load SystemUtils dynamic library. Reason: \n");
38 ex.printStackTrace();
39 }
40 }
41
42 /**
43 * Gets the free disk space in the partition the specified file is located at.
44 *
45 * @param path File path
46 * @return Free disk space in MBytes
47 */
48 static native long getFreeDiskSpace(String path);
49
50 /**
51 * Gets the total disk space in the partition the specified file is located at.
52 *
53 * @param path File path
54 * @return Total disk space in MBytes
55 */
56 static native long getTotalDiskSpace(String path);
57
58 /**
59 * Gets the MAC Address of local machine.
60 *
61 * @return MAC address of local machine.
62 */
63 static native String getLocalMacAddress();
64
65 }