Coverage Report - org.mule.routing.response.ResponseCorrelationAggregator
 
Classes in this File Line Coverage Branch Coverage Complexity
ResponseCorrelationAggregator
0%
0/3
N/A
1.75
ResponseCorrelationAggregator$DefaultEventCorrelatorCallback
0%
0/11
0%
0/6
1.75
 
 1  
 /*
 2  
  * $Id: ResponseCorrelationAggregator.java 11531 2008-04-08 15:34:34Z rossmason $
 3  
  * --------------------------------------------------------------------------------------
 4  
  * Copyright (c) MuleSource, Inc.  All rights reserved.  http://www.mulesource.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.response;
 12  
 
 13  
 import org.mule.api.MuleEvent;
 14  
 import org.mule.api.MuleMessage;
 15  
 import org.mule.api.routing.RoutingException;
 16  
 import org.mule.routing.inbound.EventGroup;
 17  
 import org.mule.routing.EventCorrelatorCallback;
 18  
 
 19  
 /**
 20  
  * <code>ResponseCorrelationAggregator</code> Correlates one or more events on a
 21  
  * response flow using the Correlation Id to group events.
 22  
  */
 23  
 
 24  0
 public abstract class ResponseCorrelationAggregator extends AbstractResponseAggregator
 25  
 {
 26  
 
 27  
     protected EventCorrelatorCallback getCorrelatorCallback()
 28  
     {
 29  0
         return new DefaultEventCorrelatorCallback();
 30  
     }
 31  
 
 32  0
     public class DefaultEventCorrelatorCallback implements EventCorrelatorCallback
 33  
     {
 34  
         /**
 35  
          * This method is invoked if the shouldAggregate method is called and returns
 36  
          * true. Once this method returns an aggregated message, the event group is
 37  
          * removed from the router.
 38  
          *
 39  
          * @param events the event group for this request
 40  
          * @return an aggregated message
 41  
          * @throws org.mule.routing.AggregationException
 42  
          *          if the aggregation fails. in this scenario the
 43  
          *          whole event group is removed and passed to the exception handler
 44  
          *          for this component
 45  
          */
 46  
         public MuleMessage aggregateEvents(EventGroup events) throws RoutingException
 47  
         {
 48  0
             return ResponseCorrelationAggregator.this.aggregateEvents(events);
 49  
         }
 50  
 
 51  
         /**
 52  
          * Determines if the event group is ready to be aggregated. if the group is ready
 53  
          * to be aggregated (this is entirely up to the application. it could be
 54  
          * determined by volume, last modified time or some oher criteria based on the
 55  
          * last event received)
 56  
          *
 57  
          * @param events
 58  
          * @return true if the event group is ready of aggregation
 59  
          */
 60  
         public boolean shouldAggregateEvents(EventGroup events)
 61  
         {
 62  0
             int expected = events.expectedSize();
 63  0
             int current = events.size();
 64  
 
 65  0
             if (expected == -1)
 66  
             {
 67  0
                 logger.warn("Correlation Group Size not set, but CorrelationAggregator is being used.  Message is being forwarded");
 68  0
                 return true;
 69  
             }
 70  
 
 71  0
             if (logger.isDebugEnabled())
 72  
             {
 73  0
                 logger.debug("Correlation size is " + expected + ", current event group size is " + current
 74  
                         + " for correlation group " + events.getGroupId());
 75  
             }
 76  
 
 77  0
             return expected == current;
 78  
         }
 79  
 
 80  
         public EventGroup createEventGroup(MuleEvent event, Object id)
 81  
         {
 82  0
             return new EventGroup(id, event.getMessage().getCorrelationGroupSize());
 83  
     }
 84  
     }
 85  
 }