KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > org > jboss > aop > SecurityActions


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;
23
24 import java.lang.reflect.AccessibleObject JavaDoc;
25 import java.lang.reflect.Method JavaDoc;
26 import java.security.AccessController JavaDoc;
27 import java.security.PrivilegedActionException JavaDoc;
28 import java.security.PrivilegedExceptionAction JavaDoc;
29
30 /**
31  *
32  * @author <a HREF="kabir.khan@jboss.com">Kabir Khan</a>
33  * @version $Revision: 45976 $
34  */
35 class SecurityActions
36 {
37    interface SetAccessibleAction
38    {
39       void setAccessible(AccessibleObject JavaDoc accessibleObject);
40       
41       SetAccessibleAction PRIVILEGED = new SetAccessibleAction()
42       {
43          public void setAccessible(final AccessibleObject JavaDoc accessibleObject)
44          {
45             try
46             {
47                AccessController.doPrivileged(new PrivilegedExceptionAction JavaDoc()
48                {
49                   public Object JavaDoc run() throws Exception JavaDoc
50                   {
51                      accessibleObject.setAccessible(true);
52                      return null;
53                   }
54                });
55             }
56             catch (PrivilegedActionException JavaDoc e)
57             {
58                throw new RuntimeException JavaDoc("Error setting " + accessibleObject + " as accessible ", e.getException());
59             }
60          }
61       };
62
63       SetAccessibleAction NON_PRIVILEGED = new SetAccessibleAction()
64       {
65          public void setAccessible(AccessibleObject JavaDoc accessibleObject)
66          {
67             accessibleObject.setAccessible(true);
68          }
69       };
70    }
71
72    static void setAccessible(AccessibleObject JavaDoc accessibleObject)
73    {
74       if (System.getSecurityManager() == null)
75       {
76          SetAccessibleAction.NON_PRIVILEGED.setAccessible(accessibleObject);
77       }
78       else
79       {
80          SetAccessibleAction.PRIVILEGED.setAccessible(accessibleObject);
81       }
82    }
83
84 }
85
Popular Tags