1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 */
19 package org.apache.directory.server.core.integ;
20
21
22 import org.apache.directory.server.core.integ.annotations.*;
23
24
25 /**
26 * Various utility methods for dealing with annotations all over.
27 *
28 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
29 * @version $Rev$, $Date$
30 */
31 public class AnnotationUtils
32 {
33 public static SetupMode getMode( Mode modeAnnotation, SetupMode defaultMode )
34 {
35 if ( modeAnnotation != null && modeAnnotation.value() != null )
36 {
37 return modeAnnotation.value();
38 }
39 else
40 {
41 return defaultMode;
42 }
43 }
44
45
46 public static DirectoryServiceFactory newFactory( Factory factoryAnnotation,
47 DirectoryServiceFactory defaultFactory )
48 {
49 DirectoryServiceFactory factory = defaultFactory;
50
51 if ( factoryAnnotation != null )
52 {
53 try
54 {
55 factory = ( DirectoryServiceFactory ) factoryAnnotation.getClass().newInstance();
56 }
57 catch ( ClassCastException e )
58 {
59 throw new RuntimeException( "The specified factory '" +
60 factoryAnnotation.getClass() + "' does not implement DirectoryServiceFactory", e );
61 }
62 catch ( InstantiationException e )
63 {
64 throw new RuntimeException( "The specified factory '" +
65 factoryAnnotation.getClass() + "' does not contain a default constructor", e );
66 }
67 catch ( IllegalAccessException e )
68 {
69 throw new RuntimeException( "The specified factory '" +
70 factoryAnnotation.getClass() + "' does not contain a public default constructor", e );
71 }
72 }
73
74 return factory;
75 }
76 }