01: /*
02: * @(#)ClassSignatureUtil.java
03: *
04: * Copyright (C) 2002-2003 Matt Albrecht
05: * groboclown@users.sourceforge.net
06: * http://groboutils.sourceforge.net
07: *
08: * Permission is hereby granted, free of charge, to any person obtaining a
09: * 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: * Knows how to create a class signature.
31: *
32: * @author Matt Albrecht <a href="mailto:groboclown@users.sourceforge.net">groboclown@users.sourceforge.net</a>
33: * @version $Date: 2003/02/10 22:51:29 $
34: * @since December 17, 2002
35: */
36: public class ClassSignatureUtil {
37: protected static ClassSignatureUtil s_instance = new ClassSignatureUtil();
38:
39: protected ClassSignatureUtil() {
40: // do nothing
41: }
42:
43: public static ClassSignatureUtil getInstance() {
44: return s_instance;
45: }
46:
47: public String createClassSignature(String className, long checksum) {
48: if (className == null) {
49: throw new IllegalArgumentException("no null args");
50: }
51: return className + '-' + checksum;
52: }
53:
54: public String getClassName(String signature) {
55: if (signature == null) {
56: throw new IllegalArgumentException("No null args.");
57: }
58: int pos = signature.indexOf('-');
59: if (pos < 0) {
60: return signature;
61: }
62: return signature.substring(0, pos);
63: }
64: }
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