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1   /**
2    * This file Copyright (c) 2012-2018 Magnolia International
3    * Ltd.  (http://www.magnolia-cms.com). All rights reserved.
4    *
5    *
6    * This file is dual-licensed under both the Magnolia
7    * Network Agreement and the GNU General Public License.
8    * You may elect to use one or the other of these licenses.
9    *
10   * This file is distributed in the hope that it will be
11   * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the
12   * implied warranty of MERCHANTABILITY or FITNESS FOR A
13   * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT.
14   * Redistribution, except as permitted by whichever of the GPL
15   * or MNA you select, is prohibited.
16   *
17   * 1. For the GPL license (GPL), you can redistribute and/or
18   * modify this file under the terms of the GNU General
19   * Public License, Version 3, as published by the Free Software
20   * Foundation.  You should have received a copy of the GNU
21   * General Public License, Version 3 along with this program;
22   * if not, write to the Free Software Foundation, Inc., 51
23   * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
24   *
25   * 2. For the Magnolia Network Agreement (MNA), this file
26   * and the accompanying materials are made available under the
27   * terms of the MNA which accompanies this distribution, and
28   * is available at http://www.magnolia-cms.com/mna.html
29   *
30   * Any modifications to this file must keep this entire header
31   * intact.
32   *
33   */
34  package info.magnolia.ui.framework.message;
35  
36  import info.magnolia.ui.api.message.Message;
37  import info.magnolia.ui.api.message.MessageType;
38  
39  import java.util.List;
40  import java.util.Map;
41  
42  /**
43   * Manages users messages.
44   */
45  public interface MessagesManager {
46  
47      /**
48       * MessageListener.
49       */
50      public interface MessageListener {
51  
52          void messageSent(Message message);
53  
54          void messageCleared(Message message);
55  
56          void messageRemoved(String id);
57      }
58  
59      /**
60       * Beware: this method is for registering message listeners and should only be used by the entry point of our application AdmincentralUI where we register a dispatcher.
61       * If you'll use it to register your own MessageListeners this likely to introduce a memory leak. You should listen to the MessageEvent instead.
62       */
63      void registerMessagesListener(String userName, MessageListener listener);
64  
65      void unregisterMessagesListener(String userName, MessageListener listener);
66  
67      /**
68       * Returns the number of uncleared (unread) messages for this user.
69       *
70       * @param userName name of the user
71       * @return number of uncleared messages
72       */
73      int getNumberOfUnclearedMessagesForUser(String userName);
74  
75      /**
76       * Returns the number of uncleared (unread) messages for this user and for the specific message type.
77       */
78      int getNumberOfUnclearedMessagesForUserAndByType(String userName, MessageType type);
79  
80      /**
81       * Returns all messages kept for a specific user.
82       *
83       * @param userName name of the user
84       * @return list of messages kept for the user
85       * @deprecated since 5.3.9 - potentially dangerous since it returns the whole set of messages for the user which could be large.
86       *             The {@link #getMessageBatch(String, java.util.List, java.util.Map, int, int)} should be used instead because it allows to set the limit and offset parameters.
87       */
88      @Deprecated
89      List<Message> getMessagesForUser(String userName);
90  
91      /**
92       * More efficient way to query message objects - the amount of return payload is limited, pre-sorted and filtered by type.
93       *
94       * @param types message types to include in the batch
95       * @param sortCriteria properties to order by (true if ascending)
96       * @param limit max amount of entries to inclde in the batch
97       * @param offset first entry index to query
98       * @return list of <code>N = limit</code> {@link Message}'s starting from <code>index = offset</code>
99       */
100     List<Message> getMessageBatch(String userName, List<MessageType> types, Map<String, Boolean> sortCriteria, int limit, int offset);
101 
102     /**
103      * Get amount of messages of certain types.
104      *
105      * @param types types of messages to take in account
106      * @return amount of messages of certain types
107      */
108     long getMessagesAmount(String userName, List<MessageType> types);
109 
110     /**
111      * Returns a message.
112      *
113      * @param userName name of the user
114      * @return list of messages kept for the user
115      */
116     Message getMessageById(String userName, String messageId);
117 
118     /**
119      * Send message to a specific user.
120      *
121      * @param userName name of the user to receive the message
122      * @param message message to send
123      */
124     void sendMessage(String userName, Message message);
125 
126     /**
127      * Send message to a specific group.
128      *
129      * @param groupName name of the group to receive the message
130      * @param message message to send
131      */
132     void sendGroupMessage(String groupName, Message message);
133 
134     /**
135      * Send message to all users with specific role.
136      *
137      * @param roleName name of the role to receive the message
138      * @param message message to send
139      */
140     void sendRoleMessage(String roleName, Message message);
141 
142     /**
143      * Send message to the current user.
144      *
145      * @param message message to send
146      */
147     void sendLocalMessage(Message message);
148 
149     /**
150      * Sends a message to all users.
151      *
152      * @param message message to send
153      */
154     void broadcastMessage(Message message);
155 
156     /**
157      * Marks a message as cleared.
158      *
159      * @param userName name of the user the message belongs to
160      * @param messageId id of message
161      */
162     void clearMessage(String userName, String messageId);
163 
164     void removeMessage(String userName, String messageId);
165 
166     void saveMessage(String userName, Message message);
167 }