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Java > Open Source Codes > org > jboss > ejb > plugins > jms > 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.ejb.plugins.jms;
23
24 import java.security.PrivilegedAction JavaDoc;
25 import java.security.AccessController JavaDoc;
26
27 import org.jboss.security.SecurityAssociation;
28
29 /** The priviledged actions in used in this package
30  *
31  * @author Scott.Stark@jboss.org
32  * @version $Revision: 37459 $
33  */
34 class SecurityActions
35 {
36    interface SubjectActions
37    {
38       SubjectActions PRIVILEGED = new SubjectActions()
39       {
40          private final PrivilegedAction JavaDoc clearAction = new PrivilegedAction JavaDoc()
41          {
42             public Object JavaDoc run()
43             {
44                SecurityAssociation.clear();
45                return null;
46             }
47          };
48
49          public void clear()
50          {
51             AccessController.doPrivileged(clearAction);
52          }
53       };
54
55       SubjectActions NON_PRIVILEGED = new SubjectActions()
56       {
57          public void clear()
58          {
59             SecurityAssociation.clear();
60          }
61       };
62
63       void clear();
64    }
65
66    static void clear()
67    {
68       if(System.getSecurityManager() == null)
69       {
70          SubjectActions.NON_PRIVILEGED.clear();
71       }
72       else
73       {
74          SubjectActions.PRIVILEGED.clear();
75       }
76    }
77 }
78
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