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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.portal.service.prefs;
35  
36  import fr.paris.lutece.portal.service.cache.AbstractCacheableService;
37  
38  import org.apache.commons.lang3.StringUtils;
39  
40  import java.util.ArrayList;
41  import java.util.List;
42  
43  /**
44   * Cache service for {@link BaseUserPreferencesServiceImpl}
45   */
46  public class BaseUserPreferencesCacheService extends AbstractCacheableService
47  {
48      private static final String CACHE_SERVICE_NAME = "BaseUserPreferencesCacheService";
49      private static final String CONSTANT_UNDERSCORE = "_";
50  
51      /**
52       * {@inheritDoc}
53       */
54      @Override
55      public String getName( )
56      {
57          return CACHE_SERVICE_NAME;
58      }
59  
60      /**
61       * Get the key in the cache of a preference of a user
62       * 
63       * @param strUserId
64       *            The id of the user
65       * @param strKey
66       *            The preference key
67       * @return The key in the cache of the preference of the user
68       */
69      public String getCacheKey( String strUserId, String strKey )
70      {
71          return strUserId + CONSTANT_UNDERSCORE + strKey;
72      }
73  
74      /**
75       * Remove every values stored in cache for a given user
76       * 
77       * @param strUserId
78       *            The user id to remove from cache
79       */
80      public void removeCacheValuesOfUser( String strUserId )
81      {
82          if ( StringUtils.isNotEmpty( strUserId ) )
83          {
84              String strPrefix = strUserId + CONSTANT_UNDERSCORE;
85              List<String> listKeysToRemove = new ArrayList<>( );
86  
87              for ( String strKey : getKeys( ) )
88              {
89                  if ( strKey.startsWith( strPrefix ) )
90                  {
91                      listKeysToRemove.add( strKey );
92                  }
93              }
94  
95              for ( String strKey : listKeysToRemove )
96              {
97                  removeKey( strKey );
98              }
99          }
100     }
101 }