Coverage Report - org.mule.module.atom.routing.FeedSplitter
 
Classes in this File Line Coverage Branch Coverage Complexity
FeedSplitter
0%
0/28
0%
0/10
0
FeedSplitter$EntryComparator
0%
0/12
0%
0/18
0
 
 1  
 /*
 2  
  * Copyright (c) MuleSoft, Inc.  All rights reserved.  http://www.mulesoft.com
 3  
  * The software in this package is published under the terms of the CPAL v1.0
 4  
  * license, a copy of which has been included with this distribution in the
 5  
  * LICENSE.txt file.
 6  
  */
 7  
 package org.mule.module.atom.routing;
 8  
 
 9  
 import org.mule.DefaultMuleMessage;
 10  
 import org.mule.api.MessagingException;
 11  
 import org.mule.api.MuleEvent;
 12  
 import org.mule.api.MuleException;
 13  
 import org.mule.api.MuleMessage;
 14  
 import org.mule.api.routing.filter.Filter;
 15  
 import org.mule.api.transformer.TransformerException;
 16  
 import org.mule.module.atom.transformers.ObjectToFeed;
 17  
 import org.mule.routing.AbstractSplitter;
 18  
 
 19  
 import java.util.ArrayList;
 20  
 import java.util.Comparator;
 21  
 import java.util.List;
 22  
 import java.util.Set;
 23  
 import java.util.TreeSet;
 24  
 
 25  
 import org.apache.abdera.model.Entry;
 26  
 import org.apache.abdera.model.Feed;
 27  
 import org.apache.commons.logging.Log;
 28  
 import org.apache.commons.logging.LogFactory;
 29  
 
 30  
 /**
 31  
  * An inbound router that will split a Feed into entries. A filter can be applied to the entries to omit
 32  
  * certain entries, the most common use of this would be to filter out entries that have already been read
 33  
  * by using the {@link org.mule.module.atom.routing.EntryLastUpdatedFilter} filter.
 34  
  */
 35  
 public class FeedSplitter extends AbstractSplitter
 36  
 {
 37  
     /**
 38  
      * logger used by this class
 39  
      */
 40  0
     protected transient final Log logger = LogFactory.getLog(FeedSplitter.class);
 41  
 
 42  
     public static final String FEED_PROPERTY = "feed.object";
 43  
     private Filter entryFilter;
 44  0
     private ObjectToFeed objectToFeed = new ObjectToFeed();
 45  
 
 46  
     public FeedSplitter()
 47  0
     {
 48  
         //By default set the filter so that entries are only read once
 49  0
         entryFilter = new EntryLastUpdatedFilter(null);
 50  0
     }
 51  
 
 52  
     @Override
 53  
     protected List<MuleMessage> splitMessage(MuleEvent event) throws MuleException
 54  
     {
 55  0
         List<MuleMessage> messages = new ArrayList<MuleMessage>();        
 56  0
         if(event.getMessage().getInboundProperty("Content-Length", -1) == 0)
 57  
         {
 58  0
             logger.info("Feed has no content, ignoring");
 59  0
             return messages;
 60  
         }
 61  
 
 62  
         try
 63  
         {
 64  0
             Object payload = event.getMessage().getPayload();
 65  
             
 66  
             Feed feed;
 67  0
             if (payload instanceof Feed)
 68  
             {
 69  0
                 feed = (Feed) payload;
 70  
             }
 71  
             else
 72  
             {
 73  0
                 feed = (Feed) objectToFeed.transform(event.getMessage().getPayload());
 74  
             }
 75  
 
 76  0
             Set<Entry> entries = new TreeSet<Entry>(new EntryComparator());
 77  0
             entries.addAll(feed.getEntries());
 78  0
             for (Entry entry : entries)
 79  
             {
 80  0
                 MuleMessage m = new DefaultMuleMessage(entry, event.getMuleContext());
 81  0
                 if (entryFilter != null && !entryFilter.accept(m))
 82  
                 {
 83  0
                     continue;
 84  
                 }
 85  0
                 m.setInvocationProperty(FEED_PROPERTY, feed);
 86  0
                 messages.add(m);
 87  0
             }
 88  0
             return messages;
 89  
         }
 90  0
         catch (TransformerException e)
 91  
         {
 92  0
             throw new MessagingException(e.getI18nMessage(), event, e);
 93  
         }
 94  
     }
 95  
 
 96  
     public Filter getEntryFilter()
 97  
     {
 98  0
         return entryFilter;
 99  
     }
 100  
 
 101  
     public void setEntryFilter(Filter entryFilter)
 102  
     {
 103  0
         this.entryFilter = entryFilter;
 104  0
     }
 105  
 
 106  0
     class EntryComparator implements Comparator<Entry>
 107  
     {
 108  
         public int compare(Entry e1, Entry e2)
 109  
         {
 110  0
             if(e1==null && e2 !=null)
 111  
             {
 112  0
                 return -1;
 113  
             }
 114  0
             else if(e1!=null && e2 ==null)
 115  
             {
 116  0
                 return 1;
 117  
             }
 118  0
             else if(e1==null && e2 ==null)
 119  
             {
 120  0
                 return 0;
 121  
             }
 122  0
             else if (e1.getPublished() !=null && e1.getPublished().before(e2.getPublished()))
 123  
             {
 124  0
                 return -1;
 125  
             }
 126  0
             else if (e1.equals(e2))
 127  
             {
 128  0
                 return 0;
 129  
             }
 130  
             else
 131  
             {
 132  0
                 return 1;
 133  
             }
 134  
         }
 135  
     }
 136  
 }