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Java > Open Source Codes > org > jsmtpd > tools > MeasureTool


1 /*
2  *
3  * Jsmtpd, Java SMTP daemon
4  * Copyright (C) 2005 Jean-Francois POUX, jf.poux@laposte.net
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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19  *
20  */
21 package org.jsmtpd.tools;
22
23 /**
24  * @author Jean-Francois POUX
25  * Jsmtp
26  */
27 public class MeasureTool {
28
29     private long start = 0;
30     private static MeasureTool instance = null;
31
32     private MeasureTool() {
33
34     }
35
36     public static MeasureTool getInstance() {
37         if (instance == null)
38             instance = new MeasureTool();
39         return instance;
40     }
41
42     public void start() {
43         start = System.currentTimeMillis();
44     }
45
46     public long getElapsed() {
47         return System.currentTimeMillis() - start;
48     }
49 }
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