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1   /*
2    * Copyright (c) 2002-2022, City of Paris
3    * All rights reserved.
4    *
5    * Redistribution and use in source and binary forms, with or without
6    * modification, are permitted provided that the following conditions
7    * are met:
8    *
9    *  1. Redistributions of source code must retain the above copyright notice
10   *     and the following disclaimer.
11   *
12   *  2. Redistributions in binary form must reproduce the above copyright notice
13   *     and the following disclaimer in the documentation and/or other materials
14   *     provided with the distribution.
15   *
16   *  3. Neither the name of 'Mairie de Paris' nor 'Lutece' nor the names of its
17   *     contributors may be used to endorse or promote products derived from
18   *     this software without specific prior written permission.
19   *
20   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
21   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23   * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
24   * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25   * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26   * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27   * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28   * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30   * POSSIBILITY OF SUCH DAMAGE.
31   *
32   * License 1.0
33   */
34  package fr.paris.lutece.util.annotation;
35  
36  import fr.paris.lutece.portal.service.spring.SpringContextService;
37  import fr.paris.lutece.portal.service.util.AppException;
38  
39  import java.lang.annotation.Annotation;
40  
41  import java.util.Set;
42  
43  /**
44   *
45   * Allow classpath scanning for annotations
46   *
47   */
48  public final class AnnotationUtil
49  {
50      private static final IAnnotationDB ANNOTATION_DB = SpringContextService.getBean( "annotationDB" );
51  
52      static
53      {
54          // check annotation db
55          if ( ANNOTATION_DB == null )
56          {
57              throw new AppException( "Bean annotationDB is not correctly set. Please check you core_context.xml configuration." );
58          }
59  
60          ANNOTATION_DB.init( );
61      }
62  
63      /**
64       * Empty constructor
65       */
66      private AnnotationUtil( )
67      {
68          // nothing
69      }
70  
71      /**
72       * Finds all classes with the given annotation
73       * 
74       * @param annotationType
75       *            the annotation class
76       * @return all classes founds
77       */
78      public static Set<String> find( Class<? extends Annotation> annotationType )
79      {
80          return ANNOTATION_DB.getClassesName( annotationType );
81      }
82  
83      /**
84       * Finds all classes with the given annotation
85       * 
86       * @param strAnnotation
87       *            the annotation class name
88       * @return all classes founds
89       */
90      public static Set<String> find( String strAnnotation )
91      {
92          return ANNOTATION_DB.getClassesName( strAnnotation );
93      }
94  }