Coverage Report - org.mule.routing.Resequencer
 
Classes in this File Line Coverage Branch Coverage Complexity
Resequencer
0%
0/18
0%
0/6
0
 
 1  
 /*
 2  
  * $Id: Resequencer.java 19948 2010-10-15 18:11:04Z 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  
 
 11  
 package org.mule.routing;
 12  
 
 13  
 import org.mule.api.MuleContext;
 14  
 import org.mule.api.MuleEvent;
 15  
 import org.mule.api.MuleException;
 16  
 import org.mule.api.lifecycle.InitialisationException;
 17  
 import org.mule.config.i18n.CoreMessages;
 18  
 import org.mule.routing.correlation.CorrelationSequenceComparator;
 19  
 import org.mule.routing.correlation.EventCorrelatorCallback;
 20  
 import org.mule.routing.correlation.ResequenceMessagesCorrelatorCallback;
 21  
 
 22  
 import java.util.Comparator;
 23  
 
 24  
 /**
 25  
  * <code>CorrelationEventResequencer</code> is used to resequence events according
 26  
  * to their dispatch sequence in the correlation group. When the MessageSplitter
 27  
  * router splits an event it assigns a correlation sequence to the individual message
 28  
  * parts so that another router such as the <i>CorrelationEventResequencer</i> can
 29  
  * receive the parts and reorder or merge them.
 30  
  * <p>
 31  
  * <b>EIP Reference:</b> <a href="http://www.eaipatterns.com/Resequencer.html">http://www.eaipatterns.com/Resequencer.html<a/>
 32  
  */
 33  
 public class Resequencer extends AbstractAggregator
 34  
 {
 35  
     protected Comparator eventComparator;
 36  
 
 37  
     public Resequencer()
 38  
     {
 39  0
         super();
 40  0
         this.setEventComparator(new CorrelationSequenceComparator());
 41  0
     }
 42  
 
 43  
     @Override
 44  
     public void initialise() throws InitialisationException
 45  
     {
 46  0
         if (eventComparator == null)
 47  
         {
 48  0
             throw new InitialisationException(CoreMessages.objectIsNull("eventComparator"), this);
 49  
         }
 50  0
         super.initialise();
 51  0
     }
 52  
 
 53  
     public Comparator getEventComparator()
 54  
     {
 55  0
         return eventComparator;
 56  
     }
 57  
 
 58  
     public void setEventComparator(Comparator eventComparator)
 59  
     {
 60  0
         this.eventComparator = eventComparator;
 61  0
     }
 62  
 
 63  
     protected EventCorrelatorCallback getCorrelatorCallback(MuleContext muleContext)
 64  
     {
 65  0
         return new ResequenceMessagesCorrelatorCallback(getEventComparator(), muleContext);
 66  
     }
 67  
     
 68  
     @Override
 69  
     public MuleEvent process(MuleEvent event) throws MuleException
 70  
     {
 71  0
         MuleEvent result = eventCorrelator.process(event);
 72  0
         if (result == null)
 73  
         {
 74  0
             return null;
 75  
         }
 76  0
         MuleEvent last = null;
 77  0
         for (MuleEvent muleEvent : (MuleEvent[]) result.getMessage().getPayload())
 78  
         {
 79  0
             last = processNext(muleEvent);
 80  
         }
 81  
         // Respect existing behaviour by returning last event
 82  0
         return last;
 83  
     }
 84  
 
 85  
 }