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Java > Open Source Codes > net > sf > cglib > core > ClassNameReader


1 /*
2  * Copyright 2003 The Apache Software Foundation
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 package net.sf.cglib.core;
17
18 import org.objectweb.asm.ClassAdapter;
19 import org.objectweb.asm.ClassReader;
20 import java.util.*;
21
22 // TODO: optimize (ClassReader buffers entire class before accept)
23 public class ClassNameReader {
24     private ClassNameReader() {
25     }
26
27     private static final EarlyExitException EARLY_EXIT = new EarlyExitException();
28     private static class EarlyExitException extends RuntimeException JavaDoc { }
29     
30     public static String JavaDoc getClassName(ClassReader r) {
31     
32         return getClassInfo(r)[0];
33       
34     }
35     
36     public static String JavaDoc[] getClassInfo(ClassReader r) {
37         final List array = new ArrayList();
38         try {
39             r.accept(new ClassAdapter(null) {
40                 public void visit(int version,
41                                   int access,
42                                   String JavaDoc name,
43                                   String JavaDoc signature,
44                                   String JavaDoc superName,
45                                   String JavaDoc[] interfaces) {
46                     array.add( name.replace('/', '.') );
47                     if(superName != null){
48                       array.add( superName.replace('/', '.') );
49                     }
50                     for(int i = 0; i < interfaces.length; i++ ){
51                        array.add( interfaces[i].replace('/', '.') );
52                     }
53                     
54                     throw EARLY_EXIT;
55                 }
56             }, true);
57         } catch (EarlyExitException e) { }
58         
59         return (String JavaDoc[])array.toArray( new String JavaDoc[]{} );
60     }
61 }
62
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