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Java > Open Source Codes > stockonline > util > Timer


1 /*
2  * StockOnline: EJB 1.1 Benchmark.
3  *
4  * Copyright © Commonwealth Scientific and Industrial Research Organisation (CSIRO - www.csiro.au), Australia 2001, 2002, 2003.
5  *
6  * Contact: Paul.Brebner@csiro.au
7  *
8  * This library is free software; you can redistribute it and/or modify it
9  * under the terms of the GNU Lesser General Public License as published by
10  * the Free Software Foundation; either version 2.1 of the License, or any
11  * later version.
12  *
13  * This library is distributed in the hope that it will be useful, but WITHOUT
14  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
15  * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
16  * for more details.
17  *
18  * You should have received a copy of the GNU Lesser General Public License
19  * along with this library; if not, write to the Free Software Foundation,
20  * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
21  *
22  * Originally developed for the CSIRO Middleware Technology Evaluation (MTE) Project, by
23  * the Software Architectures and Component Technologies Group, CSIRO Mathematical and Information Sciences
24  * Canberra and Sydney, Australia
25  *
26  * www.cmis.csiro.au/sact/
27  * www.cmis.csiro.au/adsat/mte.htm
28  *
29  * Initial developer(s): Shiping Chen, Paul Brebner, Lei Hu, Shuping Ran, Ian Gorton, Anna Liu.
30  * Contributor(s): ______________________.
31  */
32
33
34 //
35 //
36 // History:
37 // 10/08/2001 Shiping Initial coding based on the existing code
38 //
39 //
40 //
41
42 package stockonline.util;
43
44 /** This class implements a simple timer
45 */
46 public class Timer
47 {
48     private boolean started;
49     
50     private long startTime;
51     private long endTime;
52     private long interval;
53
54     public Timer()
55     {
56         started = false;
57         startTime = 0L;
58         endTime = 0L;
59         interval = 0L;
60     }
61
62     public void start()
63     {
64         started = true;
65         startTime = System.currentTimeMillis();
66     }
67     
68     public void stop()
69     {
70         if(started)
71         {
72             endTime = System.currentTimeMillis();
73             interval = endTime - startTime;
74             started = false;
75         }
76         else
77         {
78             System.err.println("The timer has not been started.");
79         }
80     }
81
82     public long getTime()
83     {
84         return interval;
85     }
86
87     public void printTime()
88     {
89         System.out.println(interval);
90     }
91
92     public void printTime(String JavaDoc msg)
93     {
94         System.out.println(msg + "\t" + interval);
95     }
96 }
97
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