1 /*
2 * Copyright (c) 2002-2021, 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.plugins.extend.modules.favorite.service;
35
36 import java.util.ArrayList;
37 import java.util.HashMap;
38 import java.util.List;
39 import java.util.Map;
40
41 import javax.servlet.http.HttpServletRequest;
42
43 import fr.paris.lutece.plugins.extend.modules.favorite.service.IFavoriteListener;
44 import fr.paris.lutece.portal.service.security.LuteceUser;
45
46 public class FavoriteListenerService
47 {
48
49 private static Map<String, List<IFavoriteListener>> _mapListeners = new HashMap<String, List<IFavoriteListener>>( );
50 private static boolean _bHasListeners;
51
52 /**
53 * Register a comment listener.
54 *
55 * @param strExtendableResourceType
56 * The extendable resource type associated with the listener. Use {@link #CONSTANT_EVERY_EXTENDABLE_RESOURCE_TYPE} to associated the listener
57 * with every resource type.
58 * @param listener
59 * The listener to register
60 */
61 public static synchronized void registerListener( String strExtendableResourceType, IFavoriteListener listener )
62 {
63 List<IFavoriteListener> listListeners = _mapListeners.get( strExtendableResourceType );
64 if ( listListeners == null )
65 {
66 listListeners = new ArrayList<IFavoriteListener>( );
67 _mapListeners.put( strExtendableResourceType, listListeners );
68 }
69 listListeners.add( listener );
70 _bHasListeners = true;
71 }
72
73 /**
74 * Check if there is listeners to notify
75 *
76 * @return True if there is at last one listener, false otherwise
77 */
78 public static boolean hasListener( )
79 {
80 return _bHasListeners;
81 }
82
83 /**
84 * Notify to listeners new favorite. Only listeners associated with the extendable resource type of the comment are notified.
85 *
86 * @param strExtendableResourceType
87 * The extendable resource type
88 * @param strIdExtendableResource
89 * The extendable resource id of the comment
90 * @param request
91 * the HTTP request
92 */
93 public static void favorite( String strExtendableResourceType, String strIdExtendableResource, HttpServletRequest request )
94 {
95 List<IFavoriteListener> listListeners = _mapListeners.get( strExtendableResourceType );
96 if ( listListeners != null )
97 {
98 for ( IFavoriteListener listener : listListeners )
99 {
100 listener.favorite( strExtendableResourceType, strIdExtendableResource, request );
101 }
102 }
103
104 }
105
106 /**
107 * Notify to listeners canceled favorite. Only listeners associated with the extendable resource type of the comment are notified.
108 *
109 * @param strExtendableResourceType
110 * The extendable resource type
111 * @param strIdExtendableResource
112 * The extendable resource id of the comment
113 * @param request
114 * the HTTP request
115 */
116 public static void cancelFavorite( String strExtendableResourceType, String strIdExtendableResource, HttpServletRequest request )
117 {
118 List<IFavoriteListener> listListeners = _mapListeners.get( strExtendableResourceType );
119 if ( listListeners != null )
120 {
121 for ( IFavoriteListener listener : listListeners )
122 {
123 listener.cancelFavorite( strExtendableResourceType, strIdExtendableResource, request );
124 }
125 }
126
127 }
128
129 public static boolean canFavorite( String strExtendableResourceType, String strIdExtendableResource, LuteceUser user )
130 {
131 List<IFavoriteListener> listListeners = _mapListeners.get( strExtendableResourceType );
132 boolean res = false;
133 if ( listListeners != null )
134 {
135 for ( IFavoriteListener listener : listListeners )
136 {
137 return listener.canFavorite( strExtendableResourceType, strIdExtendableResource, user );
138 }
139 }
140 return res;
141 }
142
143 }