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


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.common.schema.SyntaxChecker;
21 import org.apache.ldap.server.schema.SyntaxCheckerRegistry;
22 import org.apache.ldap.server.schema.SyntaxCheckerRegistryMonitor;
23 import org.apache.ldap.server.schema.SyntaxCheckerRegistryMonitorAdapter;
24
25 import javax.naming.NamingException JavaDoc;
26 import java.util.HashMap JavaDoc;
27 import java.util.Map JavaDoc;
28
29
30 /**
31  * The POJO implementation for the SyntaxCheckerRegistry service.
32  *
33  * @author <a HREF="mailto:dev@directory.apache.org">Apache Directory Project</a>
34  * @version $Rev: 169198 $
35  */
36 public class BootstrapSyntaxCheckerRegistry implements SyntaxCheckerRegistry
37 {
38     /** a map by OID of SyntaxCheckers */
39     private final Map JavaDoc byOid;
40     /** maps an OID to a schema name*/
41     private final Map JavaDoc oidToSchema;
42     /** the monitor to use for callback event notifications */
43     private SyntaxCheckerRegistryMonitor monitor;
44
45
46     // ------------------------------------------------------------------------
47 // C O N S T R U C T O R S
48 // ------------------------------------------------------------------------
49
50
51     /**
52      * Creates an instance of a BootstrapSyntaxRegistry.
53      */
54     public BootstrapSyntaxCheckerRegistry()
55     {
56         this.byOid = new HashMap JavaDoc();
57         this.oidToSchema = new HashMap JavaDoc();
58         this.monitor = new SyntaxCheckerRegistryMonitorAdapter();
59     }
60
61
62     /**
63      * Sets the monitor used to deliver notification events to via callbacks.
64      *
65      * @param monitor the monitor to recieve callback events
66      */
67     public void setMonitor( SyntaxCheckerRegistryMonitor monitor )
68     {
69         this.monitor = monitor;
70     }
71
72
73     // ------------------------------------------------------------------------
74 // Service Methods
75 // ------------------------------------------------------------------------
76
77
78     public void register( String JavaDoc schema, String JavaDoc oid, SyntaxChecker syntaxChecker )
79         throws NamingException JavaDoc
80     {
81         if ( byOid.containsKey( oid ) )
82         {
83             NamingException JavaDoc e = new NamingException JavaDoc( "SyntaxChecker with OID " +
84                 oid + " already registered!" );
85             monitor.registerFailed( oid, syntaxChecker,e );
86             throw e;
87         }
88
89         byOid.put( oid, syntaxChecker );
90         oidToSchema.put( oid, schema );
91         monitor.registered( oid, syntaxChecker );
92     }
93
94
95     public SyntaxChecker lookup( String JavaDoc oid ) throws NamingException JavaDoc
96     {
97         if ( ! byOid.containsKey( oid ) )
98         {
99             NamingException JavaDoc e = new NamingException JavaDoc( "SyntaxChecker for OID "
100                 + oid + " not found!" );
101             monitor.lookupFailed( oid, e );
102             throw e;
103         }
104
105         SyntaxChecker syntaxChecker = ( SyntaxChecker ) byOid.get( oid );
106         monitor.lookedUp( oid, syntaxChecker );
107         return null;
108     }
109
110
111     public boolean hasSyntaxChecker( String JavaDoc oid )
112     {
113         return byOid.containsKey( oid );
114     }
115
116
117     public String JavaDoc getSchemaName( String JavaDoc oid ) throws NamingException JavaDoc
118     {
119         if ( Character.isDigit( oid.charAt( 0 ) ) )
120         {
121             throw new NamingException JavaDoc( "Looks like the arg is not a numeric OID" );
122         }
123
124         if ( oidToSchema.containsKey( oid ) )
125         {
126             return ( String JavaDoc ) oidToSchema.get( oid );
127         }
128
129         throw new NamingException JavaDoc( "OID " + oid + " not found in oid to " +
130             "schema name map!" );
131     }
132 }
133
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