Coverage Report - org.mule.module.rss.routing.FeedSplitter
 
Classes in this File Line Coverage Branch Coverage Complexity
FeedSplitter
0%
0/29
0%
0/10
0
FeedSplitter$EntryComparator
0%
0/6
0%
0/4
0
 
 1  
 /*
 2  
  * $Id: FeedSplitter.java 20321 2010-11-24 15:21:24Z dfeist $
 3  
  * --------------------------------------------------------------------------------------
 4  
  * Copyright (c) MuleSoft, Inc.  All rights reserved.  http://www.mulesoft.com
 5  
  *
 6  
  * The software in this package is published under the terms of the CPAL v1.0
 7  
  * license, a copy of which has been included with this distribution in the
 8  
  * LICENSE.txt file.
 9  
  */
 10  
 package org.mule.module.rss.routing;
 11  
 
 12  
 import org.mule.DefaultMuleMessage;
 13  
 import org.mule.api.MessagingException;
 14  
 import org.mule.api.MuleEvent;
 15  
 import org.mule.api.MuleException;
 16  
 import org.mule.api.MuleMessage;
 17  
 import org.mule.api.routing.filter.Filter;
 18  
 import org.mule.module.rss.transformers.ObjectToRssFeed;
 19  
 import org.mule.routing.AbstractSplitter;
 20  
 
 21  
 import com.sun.syndication.feed.synd.SyndEntry;
 22  
 import com.sun.syndication.feed.synd.SyndFeed;
 23  
 
 24  
 import java.util.ArrayList;
 25  
 import java.util.Comparator;
 26  
 import java.util.List;
 27  
 import java.util.Set;
 28  
 import java.util.TreeSet;
 29  
 
 30  
 import org.apache.commons.logging.Log;
 31  
 import org.apache.commons.logging.LogFactory;
 32  
 
 33  
 /**
 34  
  * Will split the feed into entries.  This router also filters out any entries that are older than the last one read
 35  
  * The filter can be configured with a date from which to accept feed entries
 36  
  */
 37  
 public class FeedSplitter extends AbstractSplitter
 38  
 {
 39  
     /**
 40  
      * logger used by this class
 41  
      */
 42  0
     protected transient final Log logger = LogFactory.getLog(FeedSplitter.class);
 43  
 
 44  
     public static final String FEED_PROPERTY = "feed.object";
 45  
     private Filter entryFilter;
 46  0
     private ObjectToRssFeed objectToFeed = new ObjectToRssFeed();
 47  
 
 48  
     public FeedSplitter()
 49  0
     {
 50  
         //By default set the filter so that entries are only read once
 51  0
         entryFilter = new EntryLastUpdatedFilter(null);
 52  0
     }
 53  
 
 54  
     @Override
 55  
     protected List<MuleMessage> splitMessage(MuleEvent event) throws MuleException
 56  
     {
 57  
         //TODO MULE-5048, should not need to set this manually
 58  0
         setMuleContext(event.getMuleContext());
 59  
 
 60  0
         List<MuleMessage> messages = new ArrayList<MuleMessage>();
 61  0
         if(event.getMessage().getInboundProperty("Content-Length", -1) == 0)
 62  
         {
 63  0
             logger.info("Feed has no content, ignoring");
 64  0
             return messages;
 65  
         }
 66  
 
 67  
         try
 68  
         {
 69  0
             Object payload = event.getMessage().getPayload();
 70  
             
 71  
             SyndFeed feed;
 72  0
             if (payload instanceof SyndFeed)
 73  
             {
 74  0
                 feed = (SyndFeed) payload;
 75  
             }
 76  
             else
 77  
             {
 78  0
                 feed = (SyndFeed) objectToFeed.transform(event.getMessage().getPayload());
 79  
             }
 80  
             
 81  0
             Set<SyndEntry> entries = new TreeSet<SyndEntry>(new EntryComparator());
 82  0
             entries.addAll(feed.getEntries());
 83  
 
 84  0
             for (SyndEntry entry : entries)
 85  
             {
 86  0
                 MuleMessage m = new DefaultMuleMessage(entry, event.getMuleContext());
 87  0
                 if (entryFilter != null && !entryFilter.accept(m))
 88  
                 {
 89  0
                     continue;
 90  
                 }
 91  0
                 m.setInvocationProperty(FEED_PROPERTY, feed);
 92  0
                 messages.add(m);
 93  0
             }
 94  0
             return messages;
 95  
 
 96  
         }
 97  0
         catch (MuleException e)
 98  
         {
 99  0
             throw new MessagingException(e.getI18nMessage(), event, e);
 100  
         }
 101  
     }
 102  
 
 103  
     public Filter getEntryFilter()
 104  
     {
 105  0
         return entryFilter;
 106  
     }
 107  
 
 108  
     public void setEntryFilter(Filter entryFilter)
 109  
     {
 110  0
         this.entryFilter = entryFilter;
 111  0
     }
 112  
     
 113  0
     class EntryComparator implements Comparator<SyndEntry>
 114  
     {
 115  
         public int compare(SyndEntry e1, SyndEntry e2)
 116  
         {
 117  0
             if (e1.getPublishedDate().before(e2.getPublishedDate()))
 118  
             {
 119  0
                 return -1;
 120  
             }
 121  0
             else if (e1.equals(e2))
 122  
             {
 123  0
                 return 0;
 124  
             }
 125  
             else
 126  
             {
 127  0
                 return 1;
 128  
             }
 129  
         }
 130  
     }
 131  
 }