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 19359 2010-09-03 20:03:08Z rossmason $
 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.api.transport.PropertyScope;
 19  
 import org.mule.module.rss.transformers.ObjectToRssFeed;
 20  
 import org.mule.routing.AbstractSplitter;
 21  
 
 22  
 import com.sun.syndication.feed.synd.SyndEntry;
 23  
 import com.sun.syndication.feed.synd.SyndFeed;
 24  
 
 25  
 import java.util.ArrayList;
 26  
 import java.util.Comparator;
 27  
 import java.util.List;
 28  
 import java.util.Set;
 29  
 import java.util.TreeSet;
 30  
 
 31  
 import org.apache.commons.logging.Log;
 32  
 import org.apache.commons.logging.LogFactory;
 33  
 
 34  
 /**
 35  
  * Will split the feed into entries.  This router also filters out any entries that are older than the last one read
 36  
  * The filter can be configured with a date from which to accept feed entries
 37  
  */
 38  
 public class FeedSplitter extends AbstractSplitter
 39  
 {
 40  
     /**
 41  
      * logger used by this class
 42  
      */
 43  0
     protected transient final Log logger = LogFactory.getLog(FeedSplitter.class);
 44  
 
 45  
     public static final String FEED_PROPERTY = "feed.object";
 46  
     private Filter entryFilter;
 47  0
     private ObjectToRssFeed objectToFeed = new ObjectToRssFeed();
 48  
 
 49  
     public FeedSplitter()
 50  0
     {
 51  
         //By default set the filter so that entries are only read once
 52  0
         entryFilter = new EntryLastUpdatedFilter(null);
 53  0
     }
 54  
 
 55  
     @Override
 56  
     protected List<MuleMessage> splitMessage(MuleEvent event) throws MuleException
 57  
     {
 58  
         //TODO MULE-5048, should not need to set this manually
 59  0
         setMuleContext(event.getMuleContext());
 60  
 
 61  0
         List<MuleMessage> messages = new ArrayList<MuleMessage>();
 62  0
         if(event.getMessage().getInboundProperty("Content-Length", -1) == 0)
 63  
         {
 64  0
             logger.info("Feed has no content, ignoring");
 65  0
             return messages;
 66  
         }
 67  
 
 68  
         try
 69  
         {
 70  0
             Object payload = event.getMessage().getPayload();
 71  
             
 72  
             SyndFeed feed;
 73  0
             if (payload instanceof SyndFeed)
 74  
             {
 75  0
                 feed = (SyndFeed) payload;
 76  
             }
 77  
             else
 78  
             {
 79  0
                 feed = (SyndFeed) objectToFeed.transform(event.getMessage().getPayload());
 80  
             }
 81  
             
 82  0
             Set<SyndEntry> entries = new TreeSet<SyndEntry>(new EntryComparator());
 83  0
             entries.addAll(feed.getEntries());
 84  
 
 85  0
             for (SyndEntry entry : entries)
 86  
             {
 87  0
                 MuleMessage m = new DefaultMuleMessage(entry, event.getMuleContext());
 88  0
                 if (entryFilter != null && !entryFilter.accept(m))
 89  
                 {
 90  0
                     continue;
 91  
                 }
 92  0
                 m.setProperty(FEED_PROPERTY, feed, PropertyScope.INVOCATION);
 93  0
                 messages.add(m);
 94  0
             }
 95  0
             return messages;
 96  
 
 97  
         }
 98  0
         catch (MuleException e)
 99  
         {
 100  0
             throw new MessagingException(e.getI18nMessage(), event, e);
 101  
         }
 102  
     }
 103  
 
 104  
     public Filter getEntryFilter()
 105  
     {
 106  0
         return entryFilter;
 107  
     }
 108  
 
 109  
     public void setEntryFilter(Filter entryFilter)
 110  
     {
 111  0
         this.entryFilter = entryFilter;
 112  0
     }
 113  
     
 114  0
     class EntryComparator implements Comparator<SyndEntry>
 115  
     {
 116  
         public int compare(SyndEntry e1, SyndEntry e2)
 117  
         {
 118  0
             if (e1.getPublishedDate().before(e2.getPublishedDate()))
 119  
             {
 120  0
                 return -1;
 121  
             }
 122  0
             else if (e1.equals(e2))
 123  
             {
 124  0
                 return 0;
 125  
             }
 126  
             else
 127  
             {
 128  0
                 return 1;
 129  
             }
 130  
         }
 131  
     }
 132  
 }