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  
  * $Id: ResequenceCorrelatorCallback.java 19191 2010-08-25 21:05:23Z tcarlson $
 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.routing.correlation;
 11  
 
 12  
 import org.mule.DefaultMuleEvent;
 13  
 import org.mule.DefaultMuleMessage;
 14  
 import org.mule.api.MuleContext;
 15  
 import org.mule.api.MuleEvent;
 16  
 import org.mule.routing.AggregationException;
 17  
 import org.mule.routing.EventGroup;
 18  
 
 19  
 import java.util.Arrays;
 20  
 import java.util.Comparator;
 21  
 
 22  
 /**
 23  
  * A Correlator that correlates messages based on Mule correlation settings
 24  
  * Note that the {@link #aggregateEvents(org.mule.routing.EventGroup)} method only resequences the events and
 25  
  * returns an MuleEvent[] wrapped in a MuleMessage impl.  This means that this callback can ONLY be used with a
 26  
  * {@link org.mule.routing.inbound.CorrelationEventResequencer}
 27  
  */
 28  
 public class ResequenceCorrelatorCallback extends CollectionCorrelatorCallback
 29  
 {
 30  
     protected Comparator<MuleEvent> eventComparator;
 31  
 
 32  
     public ResequenceCorrelatorCallback(Comparator<MuleEvent> eventComparator, MuleContext muleContext)
 33  
     {
 34  0
         super(muleContext);
 35  0
         this.eventComparator = eventComparator;
 36  0
         this.muleContext = muleContext;
 37  0
     }
 38  
 
 39  
     /**
 40  
      * This method is invoked if the shouldAggregate method is called and returns
 41  
      * true. Once this method returns an aggregated message, the event group is
 42  
      * removed from the router.
 43  
      *
 44  
      * @param events the event group for this request
 45  
      * @return an aggregated message
 46  
      * @throws AggregationException
 47  
      *          if the aggregation fails. in this scenario the
 48  
      *          whole event group is removed and passed to the exception handler
 49  
      *          for this componenet
 50  
      */
 51  
     @Override
 52  
     public MuleEvent aggregateEvents(EventGroup events) throws AggregationException
 53  
     {
 54  
         MuleEvent results[];
 55  0
         if (events == null || events.size() == 0)
 56  
         {
 57  0
             results = EventGroup.EMPTY_EVENTS_ARRAY;
 58  
         }
 59  
         else
 60  
         {
 61  0
             results = events.toArray();
 62  0
             Arrays.sort(results, eventComparator);
 63  
         }
 64  
         //This is a bit of a hack since we wrap the the collection of events in a Mule Message to pass back
 65  0
         return new DefaultMuleEvent(new DefaultMuleMessage(results, muleContext), results[0]);
 66  
     }
 67  
 
 68  
 }