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


1 /*
2  * Copyright 2003,2004 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 java.lang.reflect.*;
19 import org.objectweb.asm.Type;
20
21 public class VisibilityPredicate implements Predicate {
22     private boolean protectedOk;
23     private String JavaDoc pkg;
24
25     public VisibilityPredicate(Class JavaDoc source, boolean protectedOk) {
26         this.protectedOk = protectedOk;
27         pkg = TypeUtils.getPackageName(Type.getType(source));
28     }
29
30     public boolean evaluate(Object JavaDoc arg) {
31         int mod = (arg instanceof Member) ? ((Member)arg).getModifiers() : ((Integer JavaDoc)arg).intValue();
32         if (Modifier.isPrivate(mod)) {
33             return false;
34         } else if (Modifier.isPublic(mod)) {
35             return true;
36         } else if (Modifier.isProtected(mod)) {
37             return protectedOk;
38         } else {
39             return pkg.equals(TypeUtils.getPackageName(Type.getType(((Member)arg).getDeclaringClass())));
40         }
41     }
42 }
43
44
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