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Java > Open Source Codes > org > apache > geronimo > security > jaas > LoginUtils


1 /**
2  * Licensed to the Apache Software Foundation (ASF) under one or more
3  * contributor license agreements. See the NOTICE file distributed with
4  * this work for additional information regarding copyright ownership.
5  * The ASF licenses this file to You under the Apache License, Version 2.0
6  * (the "License"); you may not use this file except in compliance with
7  * the License. You may obtain a copy of the License at
8  *
9  * http://www.apache.org/licenses/LICENSE-2.0
10  *
11  * Unless required by applicable law or agreed to in writing, software
12  * distributed under the License is distributed on an "AS IS" BASIS,
13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  */
17 package org.apache.geronimo.security.jaas;
18
19 import java.io.Externalizable JavaDoc;
20 import java.io.Serializable JavaDoc;
21 import java.rmi.Remote JavaDoc;
22 import java.util.HashMap JavaDoc;
23 import java.util.HashSet JavaDoc;
24 import java.util.Iterator JavaDoc;
25 import java.util.Map JavaDoc;
26 import java.util.Set JavaDoc;
27 import javax.security.auth.Subject JavaDoc;
28
29 import org.apache.geronimo.security.jaas.server.JaasLoginModuleConfiguration;
30
31
32 /**
33  * Helper class the computes the login result across a number of separate
34  * login modules.
35  *
36  * @version $Rev: 476049 $ $Date: 2006-11-16 23:35:17 -0500 (Thu, 16 Nov 2006) $
37  */
38 public class LoginUtils {
39     public static void copyPrincipals(Subject JavaDoc to, Subject JavaDoc from) {
40         to.getPrincipals().addAll(from.getPrincipals());
41     }
42
43     public static Map JavaDoc getSerializableCopy(Map JavaDoc from) {
44         Map JavaDoc to = new HashMap JavaDoc();
45         for (Iterator JavaDoc it = from.keySet().iterator(); it.hasNext();) {
46             String JavaDoc key = (String JavaDoc) it.next();
47             Object JavaDoc value = from.get(key);
48             if (value instanceof Serializable JavaDoc || value instanceof Externalizable JavaDoc || value instanceof Remote JavaDoc) {
49                 to.put(key, value);
50             }
51         }
52         return to;
53     }
54
55     public static Set JavaDoc getSerializableCopy(Set JavaDoc from) {
56         Set JavaDoc to = new HashSet JavaDoc();
57         for (Iterator JavaDoc it = from.iterator(); it.hasNext();) {
58             Object JavaDoc value = it.next();
59             if (value instanceof Serializable JavaDoc || value instanceof Externalizable JavaDoc || value instanceof Remote JavaDoc) {
60                 to.add(value);
61             }
62         }
63         return to;
64     }
65
66     /**
67      * Strips out stuff that isn't serializable so this can be safely passed to
68      * a remote server.
69      */
70     public static JaasLoginModuleConfiguration getSerializableCopy(JaasLoginModuleConfiguration config) {
71         return new JaasLoginModuleConfiguration(config.getLoginModuleClassName(),
72                 config.getFlag(),
73                 LoginUtils.getSerializableCopy(config.getOptions()),
74                 config.isServerSide(),
75                 config.getLoginDomainName(),
76                 config.isWrapPrincipals(),
77                 null);
78     }
79 }
80
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