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Java > Open Source Codes > net > sf > retrotranslator > transformer > MethodCounter


1 /***
2  * Retrotranslator: a Java bytecode transformer that translates Java classes
3  * compiled with JDK 5.0 into classes that can be run on JVM 1.4.
4  *
5  * Copyright (c) 2005 - 2007 Taras Puchko
6  * All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  * notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  * notice, this list of conditions and the following disclaimer in the
15  * documentation and/or other materials provided with the distribution.
16  * 3. Neither the name of the copyright holders nor the names of its
17  * contributors may be used to endorse or promote products derived from
18  * this software without specific prior written permission.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
21  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
24  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
30  * THE POSSIBILITY OF SUCH DAMAGE.
31  */

32 package net.sf.retrotranslator.transformer;
33
34 import java.util.*;
35
36 /**
37  * @author Taras Puchko
38  */

39 class MethodCounter {
40
41     private Map<String JavaDoc, Integer JavaDoc> methods = new HashMap<String JavaDoc, Integer JavaDoc>();
42
43     public void increment(String JavaDoc name, String JavaDoc desc) {
44         String JavaDoc key = name + desc;
45         Integer JavaDoc count = methods.get(key);
46         methods.put(key, (count == null ? 0 : count) + 1);
47     }
48
49     public boolean isRepetitive(String JavaDoc name, String JavaDoc desc) {
50         return methods.get(name + desc) > 1;
51     }
52
53     public void decrement(String JavaDoc name, String JavaDoc desc) {
54         String JavaDoc key = name + desc;
55         methods.put(key, methods.get(key) - 1);
56     }
57
58     public boolean containsDuplicates() {
59         for (Integer JavaDoc count : methods.values()) {
60             if (count > 1) return true;
61         }
62         return false;
63     }
64
65 }
66
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