1/*
2 * ProGuard -- shrinking, optimization, obfuscation, and preverification
3 *             of Java bytecode.
4 *
5 * Copyright (c) 2002-2009 Eric Lafortune (eric@graphics.cornell.edu)
6 *
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License as published by the Free
9 * Software Foundation; either version 2 of the License, or (at your option)
10 * any later version.
11 *
12 * This program is distributed in the hope that it will be useful, but WITHOUT
13 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
15 * more details.
16 *
17 * You should have received a copy of the GNU General Public License along
18 * with this program; if not, write to the Free Software Foundation, Inc.,
19 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 */
21package proguard.obfuscate;
22
23/**
24 * This <code>NameFactory</code> generates names that are special, by appending
25 * a suffix.
26 *
27 * @author Eric Lafortune
28 */
29public class SpecialNameFactory implements NameFactory
30{
31    private static final char SPECIAL_SUFFIX = '_';
32
33
34    private final NameFactory nameFactory;
35
36
37    /**
38     * Creates a new <code>SpecialNameFactory</code>.
39     * @param nameFactory the name factory from which original names will be
40     *                    retrieved.
41     */
42    public SpecialNameFactory(NameFactory nameFactory)
43    {
44        this.nameFactory = nameFactory;
45    }
46
47
48    // Implementations for NameFactory.
49
50    public void reset()
51    {
52        nameFactory.reset();
53    }
54
55
56    public String nextName()
57    {
58        return nameFactory.nextName() + SPECIAL_SUFFIX;
59    }
60
61
62    // Small utility methods.
63
64    /**
65     * Returns whether the given name is special.
66     */
67    static boolean isSpecialName(String name)
68    {
69        return name != null &&
70               name.charAt(name.length()-1) == SPECIAL_SUFFIX;
71    }
72
73
74    public static void main(String[] args)
75    {
76        SpecialNameFactory factory = new SpecialNameFactory(new SimpleNameFactory());
77
78        for (int counter = 0; counter < 50; counter++)
79        {
80            System.out.println("["+factory.nextName()+"]");
81        }
82    }
83}
84