Coverage Report - org.mule.routing.correlation.ResequenceCorrelatorCallback
 
Classes in this File Line Coverage Branch Coverage Complexity
ResequenceCorrelatorCallback
0%
0/9
0%
0/4
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.routing.correlation;
 8  
 
 9  
 import org.mule.DefaultMuleEvent;
 10  
 import org.mule.DefaultMuleMessage;
 11  
 import org.mule.api.MuleContext;
 12  
 import org.mule.api.MuleEvent;
 13  
 import org.mule.routing.AggregationException;
 14  
 import org.mule.routing.EventGroup;
 15  
 import org.mule.routing.Resequencer;
 16  
 
 17  
 import java.util.Arrays;
 18  
 import java.util.Comparator;
 19  
 
 20  
 /**
 21  
  * A Correlator that correlates messages based on Mule correlation settings. Note
 22  
  * that the {@link #aggregateEvents(org.mule.routing.EventGroup)} method only
 23  
  * resequences the events and returns an MuleEvent[] wrapped in a MuleMessage impl.
 24  
  * This means that this callback can ONLY be used with a {@link Resequencer}
 25  
  */
 26  
 public class ResequenceCorrelatorCallback extends CollectionCorrelatorCallback
 27  
 {
 28  
     protected Comparator<MuleEvent> eventComparator;
 29  
 
 30  
     public ResequenceCorrelatorCallback(Comparator<MuleEvent> eventComparator, MuleContext muleContext)
 31  
     {
 32  0
         super(muleContext);
 33  0
         this.eventComparator = eventComparator;
 34  0
         this.muleContext = muleContext;
 35  0
     }
 36  
 
 37  
     /**
 38  
      * This method is invoked if the shouldAggregate method is called and returns
 39  
      * true. Once this method returns an aggregated message, the event group is
 40  
      * removed from the router.
 41  
      *
 42  
      * @param events the event group for this request
 43  
      * @return an aggregated message
 44  
      * @throws AggregationException
 45  
      *          if the aggregation fails. in this scenario the
 46  
      *          whole event group is removed and passed to the exception handler
 47  
      *          for this componenet
 48  
      */
 49  
     @Override
 50  
     public MuleEvent aggregateEvents(EventGroup events) throws AggregationException
 51  
     {
 52  
         MuleEvent results[];
 53  0
         if (events == null || events.size() == 0)
 54  
         {
 55  0
             results = EventGroup.EMPTY_EVENTS_ARRAY;
 56  
         }
 57  
         else
 58  
         {
 59  0
             results = events.toArray();
 60  0
             Arrays.sort(results, eventComparator);
 61  
         }
 62  
         //This is a bit of a hack since we wrap the the collection of events in a Mule Message to pass back
 63  0
         return new DefaultMuleEvent(new DefaultMuleMessage(results, muleContext), results[0]);
 64  
     }
 65  
 
 66  
 }