/*
    * Copyright (c) 2002-2014, Mairie de Paris
    * All rights reserved.
    *
    * Redistribution and use in source and binary forms, with or without
    * modification, are permitted provided that the following conditions
    * are met:
    *
    *  1. Redistributions of source code must retain the above copyright notice
   *     and the following disclaimer.
   *
   *  2. Redistributions in binary form must reproduce the above copyright notice
   *     and the following disclaimer in the documentation and/or other materials
   *     provided with the distribution.
   *
   *  3. Neither the name of 'Mairie de Paris' nor 'Lutece' nor the names of its
   *     contributors may be used to endorse or promote products derived from
   *     this software without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
   * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   * POSSIBILITY OF SUCH DAMAGE.
   *
   * License 1.0
   */
  package fr.paris.lutece.plugins.rss.service;
  
  import fr.paris.lutece.plugins.rss.business.RssFeed;
  import fr.paris.lutece.plugins.rss.business.RssFeedHome;
  import fr.paris.lutece.plugins.rss.business.RssGeneratedFile;
  import fr.paris.lutece.plugins.rss.business.resourceRss.IResourceRssFactory;
  import fr.paris.lutece.portal.business.rss.IResourceRss;
  import fr.paris.lutece.portal.business.rss.IResourceRssType;
  import fr.paris.lutece.portal.service.i18n.I18nService;
  import fr.paris.lutece.portal.service.spring.SpringContextService;
  import fr.paris.lutece.portal.service.util.AppLogService;
  import fr.paris.lutece.util.ReferenceList;
  
  import java.util.Collection;
  import java.util.List;
  import java.util.Locale;
  
  
  /**
   * The rss service
   *
   */
  public class RssService implements IRssService
  {
      private static RssServicervice/RssService.html#RssService">RssService _singleton = new RssService(  );
      private static final String BEAN_RESOURCE_RSS_FACTORY = "resourceRssFactory";
      private IResourceRssFactory _resourceRssFactory;
  
      /**
      * Initialize the Rss service
      *
      */
      public void init(  )
      {
          RssGeneratedFile.init(  );
      }
  
      /**
       * Returns the instance of the singleton
       *
       * @return The instance of the singleton
       */
      public static RssService getInstance(  )
      {
          if ( _singleton == null )
          {
              _singleton = new RssService(  );
          }
  
          return _singleton;
      }
  
      /**
       * Gets the RSS content
       * @param nIdRssFeed The RSS id
       * @return The content
       */
      public String getRssContent( int nIdRssFeed )
      {
          String rssContent = "";
  
          try
          {
              rssContent = RssContentLoader.fetchRssFeed( nIdRssFeed );
          }
          catch ( RssParsingException e )
         {
             AppLogService.error( e.getMessage(  ) );
         }
 
         return rssContent;
     }
 
     public ReferenceList getRefListRssFeed(  )
     {
         return RssFeedHome.getRssFeedsReferenceList(  );
     }
 
     public static List<RssFeed> getRssFeed(  )
     {
         return RssFeedHome.getRssFeeds(  );
     }
 
     /**
     *
     * @return a IResourceRssFactory Object
     */
     private IResourceRssFactory getResourceRssFactory(  )
     {
         if ( _resourceRssFactory == null )
         {
             _resourceRssFactory = (IResourceRssFactory) SpringContextService.getPluginBean( RssPlugin.PLUGIN_NAME,
                     BEAN_RESOURCE_RSS_FACTORY );
         }
 
         return _resourceRssFactory;
     }
 
     /**
      * return an instance of ResourceRss Object depending on the resource rss type
      * @param strKey the type resource rss key
      * @param locale the locale
      * @return an instance of ResourceRss Object
      */
     public IResourceRss getResourceRssInstance( String strKey, Locale locale )
     {
         IResourceRss resourceRss = getResourceRssFactory(  ).getResourceRss( strKey );
         resourceRss.getResourceRssType(  )
                    .setTitle( I18nService.getLocalizedString( resourceRss.getResourceRssType(  ).getTitleI18nKey(  ),
                 locale ) );
 
         return resourceRss;
     }
 
     /**
     *
     * @return a list of ResourceRss type
     */
     public Collection<IResourceRssType> getResourceRssTypeList(  )
     {
         return getResourceRssFactory(  ).getAllResourceRssType(  );
     }
 
     /**
      * Return a reference list wich contains the ResourceRss types
      * @param locale the locale
      * @return a reference list wich contains the ResourceRss types
      */
     public ReferenceList getRefListResourceRssType( Locale locale )
     {
         Collection<IResourceRssType> listResourceRssType = getResourceRssTypeList(  );
         ReferenceList refListResourceRssType = new ReferenceList(  );
 
         if ( listResourceRssType != null )
         {
             for ( IResourceRssType resourceRssType : listResourceRssType )
             {
                 refListResourceRssType.addItem( resourceRssType.getKey(  ),
                     I18nService.getLocalizedString( resourceRssType.getTitleI18nKey(  ), locale ) );
             }
         }
 
         return refListResourceRssType;
     }
 }