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Java > Open Source Codes > org > apache > ldap > server > schema > bootstrap > BootstrapStateFactoryRegistry


1 /*
2  * Copyright 2004 The Apache Software Foundation
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  *
16  */
17 package org.apache.ldap.server.schema.bootstrap;
18
19
20 import org.apache.ldap.server.jndi.ServerDirStateFactory;
21 import org.apache.ldap.server.schema.StateFactoryRegistry;
22
23 import javax.naming.NamingException JavaDoc;
24 import java.util.HashMap JavaDoc;
25
26
27 /**
28  * A bootstrap service implementation for a state factory registry.
29  *
30  * @author <a HREF="mailto:dev@directory.apache.org">Apache Directory Project</a>
31  * @version $Rev$
32  */
33 public class BootstrapStateFactoryRegistry implements StateFactoryRegistry
34 {
35     /** Used to lookup a state factory by class */
36     private final HashMap JavaDoc byClass = new HashMap JavaDoc();
37
38
39     public ServerDirStateFactory getStateFactories( Object JavaDoc obj ) throws NamingException JavaDoc
40     {
41         Class JavaDoc c = obj.getClass();
42
43         // if the class is mapped to a factory then this is most specific
44
45         if ( byClass.containsKey( c ) )
46         {
47             return ( ServerDirStateFactory ) byClass.get( c );
48         }
49
50         while ( ( c = c.getSuperclass() ) != null )
51         {
52             if ( byClass.containsKey( c ) )
53             {
54                 return ( ServerDirStateFactory ) byClass.get( c );
55             }
56         }
57
58         // if we get this far start searching interfaces for a factory
59
60         Class JavaDoc[] interfaces = c.getInterfaces();
61
62         for ( int ii = 0; ii < interfaces.length; ii++ )
63         {
64             if ( byClass.containsKey( interfaces[ii] ) )
65             {
66                 return ( ServerDirStateFactory ) byClass.get( interfaces[ii] );
67             }
68         }
69
70         return null;
71     }
72
73
74     public void register( ServerDirStateFactory factory )
75     {
76         byClass.put( factory.getAssociatedClass(), factory );
77     }
78 }
79
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