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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.rss.service.type.atom;
35  
36  import com.sun.syndication.feed.atom.Entry;
37  
38  import fr.paris.lutece.portal.business.rss.IFeedResourceItem;
39  
40  import org.apache.commons.lang3.StringUtils;
41  
42  import java.util.ArrayList;
43  import java.util.Collections;
44  import java.util.List;
45  
46  
47  /**
48   *
49   * AtomFeedTypeProvider
50   *
51   */
52  public class DefaultAtomFeedTypeProvider extends AbstractAtomFeedTypeProvider
53  {
54      private static final String ATOM_PREFIX = "atom";
55  
56      /**
57       * {@inheritDoc}
58       */
59      public boolean isInvoked( String strFeedType )
60      {
61          return StringUtils.isNotBlank( strFeedType ) && strFeedType.startsWith( ATOM_PREFIX );
62      }
63  
64      /**
65      * {@inheritDoc}
66      */
67      public List<Entry> getATOMEntries( List<IFeedResourceItem> listItems, int nMaxItems )
68      {
69          List<Entry> listEntries = new ArrayList<Entry>(  );
70  
71          boolean bLimit = nMaxItems != MAX_ITEM_UNLIMITED;
72          int nIndex = 1;
73  
74          for ( IFeedResourceItem item : listItems )
75          {
76              listEntries.add( getATOMEntry( item ) );
77  
78              if ( bLimit )
79              {
80                  if ( nIndex < nMaxItems )
81                  {
82                      nIndex++;
83                  }
84                  else
85                  {
86                      break;
87                  }
88              }
89          }
90  
91          return listEntries;
92      }
93  
94      /**
95       * {@inheritDoc}
96       */
97      public Entry getATOMEntry( IFeedResourceItem resourceItem )
98      {
99          Entry entry = new Entry(  );
100 
101         entry.setTitle( resourceItem.getTitle(  ) );
102         entry.setPublished( resourceItem.getDate(  ) );
103 
104         com.sun.syndication.feed.atom.Content summary = new com.sun.syndication.feed.atom.Content(  );
105         summary.setValue( resourceItem.getTitle(  ) );
106         entry.setSummary( summary );
107 
108         com.sun.syndication.feed.atom.Content content = new com.sun.syndication.feed.atom.Content(  );
109         content.setValue( resourceItem.getDescription(  ) );
110         // we don't handle multi-content
111         entry.setContents( Collections.singletonList( content ) );
112 
113         return entry;
114     }
115 }