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Java > Open Source Codes > org > jboss > aop > util > Advisable


1 /*
2 * JBoss, Home of Professional Open Source
3 * Copyright 2005, JBoss Inc., and individual contributors as indicated
4 * by the @authors tag. See the copyright.txt in the distribution for a
5 * full listing of individual contributors.
6 *
7 * This is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU Lesser General Public License as
9 * published by the Free Software Foundation; either version 2.1 of
10 * the License, or (at your option) any later version.
11 *
12 * This software is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this software; if not, write to the Free
19 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
21 */
22 package org.jboss.aop.util;
23
24 import java.lang.reflect.Field JavaDoc;
25 import java.lang.reflect.Method JavaDoc;
26
27 import javassist.CtField;
28 import javassist.CtMethod;
29 import javassist.Modifier;
30
31 import org.jboss.aop.ClassAdvisor;
32
33 /**
34  *
35  * @author <a HREF="kabir.khan@jboss.com">Kabir Khan</a>
36  * @version $Revision: 46049 $
37  */
38 public class Advisable
39 {
40    /**
41     * Is the method advisable?
42     */
43    public static boolean isAdvisable(CtMethod method)
44    {
45       return isAdvisableMethod(method.getModifiers(), method.getName());
46    }
47
48    public static boolean isAdvisable(Method JavaDoc method)
49    {
50       return isAdvisableMethod(method.getModifiers(), method.getName());
51    }
52
53    public static boolean isAdvisableMethod(int modifiers, String JavaDoc name)
54    {
55       return
56       (modifiers & Modifier.ABSTRACT) == 0 &&
57       (modifiers & Modifier.NATIVE) == 0 &&
58       !name.endsWith(ClassAdvisor.NOT_TRANSFORMABLE_SUFFIX) &&
59       !name.equals("_getAdvisor") &&
60       !name.equals("_getClassAdvisor") &&
61       !name.equals("_getInstanceAdvisor") &&
62       !name.equals("_setInstanceAdvisor") &&
63       !name.equals("class$") &&
64       !name.equals("");
65    }
66    /**
67     * Is the field advisable?
68     */
69    public static boolean isAdvisable(CtField field)
70    {
71       return isAdvisableField(field.getModifiers(), field.getName());
72    }
73
74    public static boolean isAdvisable(Field JavaDoc field)
75    {
76       return isAdvisableField(field.getModifiers(), field.getName());
77    }
78
79    public static boolean isAdvisableField(int modifiers, String JavaDoc name)
80    {
81       return (modifiers & Modifier.FINAL) == 0 &&
82       (!name.endsWith(ClassAdvisor.NOT_TRANSFORMABLE_SUFFIX)) &&
83       !name.equals("_instanceAdvisor") &&
84       !name.endsWith("$aop$mixin") &&
85       (name.indexOf('$') == -1);
86    }
87 }
88
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