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1   /*
2    * Copyright (c) 2002-2014, Mairie de 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.plugins.crm.service.listener;
35  
36  import fr.paris.lutece.plugins.crm.business.user.CRMUser;
37  import fr.paris.lutece.plugins.crm.util.IListener;
38  import fr.paris.lutece.portal.service.spring.SpringContextService;
39  import fr.paris.lutece.portal.service.util.RemovalListenerService;
40  
41  import java.util.ArrayList;
42  import java.util.List;
43  
44  /**
45   * Service to manage listeners of modifications on CRMUsers objects
46   */
47  public class CRMUserModificationListenerService extends RemovalListenerService
48  {
49      private static final String BEAN_NAME = "crm.crmUserListenerService";
50      private static CRMUserModificationListenerService _instance;
51      private List<IListener<CRMUser>> _listRegisteredListeners = new ArrayList<IListener<CRMUser>>( );
52  
53      /**
54       * Private constructor
55       */
56      private CRMUserModificationListenerService( )
57      {
58      }
59  
60      /**
61       * Get the instance of the service
62       * 
63       * @return The instance of the service
64       */
65      public static CRMUserModificationListenerService getService( )
66      {
67          if ( _instance == null )
68          {
69              _instance = SpringContextService.getBean( BEAN_NAME );
70          }
71  
72          return _instance;
73      }
74  
75      /**
76       * Register a new Removal listener
77       * 
78       * @param listener
79       *            The listener to register
80       */
81      public void registerListener( IListener<CRMUser> listener )
82      {
83          if ( listener != null )
84          {
85              _listRegisteredListeners.add( listener );
86          }
87      }
88  
89      /**
90       * Notify listeners with a CRM user.
91       * 
92       * @param crmUser
93       *            The user to send to listeners
94       * @param strEventName
95       *            Name of the event that caused the notification
96       */
97      public void notifyListeners( CRMUser crmUser, String strEventName )
98      {
99          if ( ( _listRegisteredListeners != null ) && ( _listRegisteredListeners.size( ) > 0 ) )
100         {
101             for ( IListener<CRMUser> listener : _listRegisteredListeners )
102             {
103                 listener.notifyListener( crmUser, strEventName );
104             }
105         }
106     }
107 }