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Java > Open Source Codes > org > jboss > ejb > BeanMetaDataPolicyContextHandler


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;
23
24 import javax.security.jacc.PolicyContextException JavaDoc;
25 import javax.security.jacc.PolicyContextHandler JavaDoc;
26
27 /** A PolicyContextHandler for the active EnterpriseBean metadata.
28  * @author Scott.Stark@jboss.org
29  * @version $Revison:$
30  */
31 public class BeanMetaDataPolicyContextHandler implements PolicyContextHandler JavaDoc
32 {
33    public static final String JavaDoc METADATA_CONTEXT_KEY = "org.jboss.ejb.BeanMetaData";
34    private static ThreadLocal JavaDoc metaDataContext = new ThreadLocal JavaDoc();
35
36    static void setMetaData(Object JavaDoc metadata)
37    {
38       metaDataContext.set(metadata);
39    }
40
41    /** Access the current EJB context metadata.
42     * @param key - "org.jboss.ejb.BeanMetaData"
43     * @param data currently unused
44     * @return The active org.jboss.metadata.BeanMetaData subclass
45     * @throws javax.security.jacc.PolicyContextException
46     */
47    public Object JavaDoc getContext(String JavaDoc key, Object JavaDoc data)
48       throws PolicyContextException JavaDoc
49    {
50       Object JavaDoc context = null;
51       if( key.equalsIgnoreCase(METADATA_CONTEXT_KEY) == true )
52          context = metaDataContext.get();
53       return context;
54    }
55
56    public String JavaDoc[] getKeys()
57       throws PolicyContextException JavaDoc
58    {
59       String JavaDoc[] keys = {METADATA_CONTEXT_KEY};
60       return keys;
61    }
62
63    public boolean supports(String JavaDoc key)
64       throws PolicyContextException JavaDoc
65    {
66       return key.equalsIgnoreCase(METADATA_CONTEXT_KEY);
67    }
68 }
69
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