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Java > Open Source Codes > net > sourceforge > groboutils > codecoverage > v2 > util > ClassSignatureUtil


1 /*
2  * @(#)ClassSignatureUtil.java
3  *
4  * Copyright (C) 2002-2003 Matt Albrecht
5  * groboclown@users.sourceforge.net
6  * http://groboutils.sourceforge.net
7  *
8  * Permission is hereby granted, free of charge, to any person obtaining a
9  * copy of this software and associated documentation files (the "Software"),
10  * to deal in the Software without restriction, including without limitation
11  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
12  * and/or sell copies of the Software, and to permit persons to whom the
13  * Software is furnished to do so, subject to the following conditions:
14  *
15  * The above copyright notice and this permission notice shall be included in
16  * all copies or substantial portions of the Software.
17  *
18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
21  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
22  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
23  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
24  * DEALINGS IN THE SOFTWARE.
25  */
26
27 package net.sourceforge.groboutils.codecoverage.v2.util;
28
29
30 /**
31  * Knows how to create a class signature.
32  *
33  * @author Matt Albrecht <a HREF="mailto:groboclown@users.sourceforge.net">groboclown@users.sourceforge.net</a>
34  * @version $Date: 2003/02/10 22:51:29 $
35  * @since December 17, 2002
36  */
37 public class ClassSignatureUtil
38 {
39     protected static ClassSignatureUtil s_instance = new ClassSignatureUtil();
40     
41     
42     protected ClassSignatureUtil()
43     {
44         // do nothing
45 }
46     
47     
48     public static ClassSignatureUtil getInstance()
49     {
50         return s_instance;
51     }
52     
53     
54     public String JavaDoc createClassSignature( String JavaDoc className, long checksum )
55     {
56         if (className == null)
57         {
58             throw new IllegalArgumentException JavaDoc("no null args");
59         }
60         return className + '-' + checksum;
61     }
62     
63     
64     public String JavaDoc getClassName( String JavaDoc signature )
65     {
66         if (signature == null)
67         {
68             throw new IllegalArgumentException JavaDoc( "No null args." );
69         }
70         int pos = signature.indexOf( '-' );
71         if (pos < 0)
72         {
73             return signature;
74         }
75         return signature.substring( 0, pos );
76     }
77 }
78
79
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