Coverage Report - org.mule.routing.correlation.ResequenceMessagesCorrelatorCallback
 
Classes in this File Line Coverage Branch Coverage Complexity
ResequenceMessagesCorrelatorCallback
0%
0/8
0%
0/2
1
 
 1  
 /*
 2  
  * $Id: ResequenceMessagesCorrelatorCallback.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.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  
 import org.apache.commons.logging.Log;
 23  
 import org.apache.commons.logging.LogFactory;
 24  
 
 25  
 /**
 26  
  * A Correlator that correlates messages based on Mule correlation settings
 27  
  * Note that the {@link #aggregateEvents(org.mule.routing.EventGroup)} method only resequences the events and
 28  
  * returns an MuleEvent[] wrapped in a MuleMessage impl.  This means that this callback can ONLY be used with a
 29  
  * {@link org.mule.routing.inbound.CorrelationEventResequencer}
 30  
  */
 31  
 public class ResequenceMessagesCorrelatorCallback extends CollectionCorrelatorCallback
 32  
 {
 33  
     /**
 34  
      * logger used by this class
 35  
      */
 36  0
     protected transient final Log logger = LogFactory.getLog(ResequenceMessagesCorrelatorCallback.class);
 37  
 
 38  
     protected Comparator eventComparator;
 39  
     protected MuleContext muleContext;
 40  
 
 41  
     public ResequenceMessagesCorrelatorCallback(Comparator eventComparator, MuleContext muleContext)
 42  
     {
 43  0
         super(muleContext);
 44  0
         this.eventComparator = eventComparator;
 45  0
         this.muleContext = muleContext;
 46  0
     }
 47  
 
 48  
     /**
 49  
      * This method is invoked if the shouldAggregate method is called and returns
 50  
      * true. Once this method returns an aggregated message, the event group is
 51  
      * removed from the router.
 52  
      *
 53  
      * @param events the event group for this request
 54  
      * @return an aggregated message
 55  
      * @throws org.mule.routing.AggregationException
 56  
      *          if the aggregation fails. in this scenario the
 57  
      *          whole event group is removed and passed to the exception handler
 58  
      *          for this componenet
 59  
      */
 60  
     public MuleEvent aggregateEvents(EventGroup events) throws AggregationException
 61  
     {
 62  0
         MuleEvent[] results = (events == null) ? new MuleEvent[0] : events.toArray();
 63  0
         Arrays.sort(results, eventComparator);
 64  
         //This is a bit of a hack since we return a collection of events on one message
 65  0
         return new DefaultMuleEvent(new DefaultMuleMessage(results, muleContext), results[0]);
 66  
     }
 67  
 
 68  
 }