Coverage Report - org.mule.routing.AbstractSplitter
 
Classes in this File Line Coverage Branch Coverage Complexity
AbstractSplitter
0%
0/37
0%
0/22
0
 
 1  
 /*
 2  
  * $Id: AbstractSplitter.java 20320 2010-11-24 15:03:31Z 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.DefaultMuleEvent;
 14  
 import org.mule.DefaultMuleMessage;
 15  
 import org.mule.api.MuleContext;
 16  
 import org.mule.api.MuleEvent;
 17  
 import org.mule.api.MuleException;
 18  
 import org.mule.api.MuleMessage;
 19  
 import org.mule.api.context.MuleContextAware;
 20  
 import org.mule.api.routing.MessageInfoMapping;
 21  
 import org.mule.api.routing.RouterResultsHandler;
 22  
 import org.mule.processor.AbstractInterceptingMessageProcessor;
 23  
 
 24  
 import java.util.ArrayList;
 25  
 import java.util.List;
 26  
 
 27  
 /**
 28  
  * Splits a message invoking the next message processor one for each split part.
 29  
  * Implementations must implement {@link #splitMessage(MuleEvent)} and determine how
 30  
  * the message is split.
 31  
  *
 32  
  * <p>
 33  
  * <b>EIP Reference:</b> <a href="http://www.eaipatterns.com/Sequencer.html">http://www.eaipatterns.com/Sequencer.html</a>
 34  
  */
 35  
 
 36  0
 public abstract class AbstractSplitter extends
 37  
     AbstractInterceptingMessageProcessor implements MuleContextAware
 38  
 {
 39  
 
 40  
     protected MuleContext muleContext;
 41  0
     protected RouterResultsHandler resultsHandler = new DefaultRouterResultsHandler();
 42  0
     protected CorrelationMode enableCorrelation = CorrelationMode.IF_NOT_SET;
 43  
     protected MessageInfoMapping messageInfoMapping;
 44  
 
 45  
     public MuleEvent process(MuleEvent event) throws MuleException
 46  
     {
 47  0
         if (isSplitRequired(event))
 48  
         {
 49  0
             List<MuleMessage> parts = splitMessage(event);
 50  0
             if (parts.size() > 0)
 51  
             {
 52  0
                 if (parts.size() <= 1)
 53  
                 {
 54  0
                     logger.warn("Splitter only returned a single result. If this is not expected, please check your split expression");
 55  
                 }
 56  0
                 return resultsHandler.aggregateResults(processParts(parts, event), event, muleContext);
 57  
             }
 58  
             else
 59  
             {
 60  0
                 logger.warn("Splitter returned no results. If this is not expected, please check your split expression");
 61  0
                 return null;
 62  
             }
 63  
         }
 64  
         else
 65  
         {
 66  0
             return processNext(event);
 67  
         }
 68  
     }
 69  
 
 70  
     protected boolean isSplitRequired(MuleEvent event)
 71  
     {
 72  0
         return true;
 73  
     }
 74  
 
 75  
     protected abstract List<MuleMessage> splitMessage(MuleEvent event) throws MuleException;
 76  
 
 77  
     protected List<MuleEvent> processParts(List parts, MuleEvent event) throws MuleException
 78  
     {
 79  0
         if (messageInfoMapping == null)
 80  
         {
 81  0
             messageInfoMapping = event.getFlowConstruct().getMessageInfoMapping();
 82  
         }
 83  0
         String correlationId = messageInfoMapping.getCorrelationId(
 84  
             event.getMessage());
 85  0
         List<MuleEvent> resultEvents = new ArrayList<MuleEvent>();
 86  0
         int correlationSequence = 1;
 87  
 
 88  0
         for (Object part : parts)
 89  
         {
 90  
             MuleMessage message;
 91  0
             if (part instanceof MuleMessage)
 92  
             {
 93  0
                 message = (MuleMessage) part;
 94  
             }
 95  
             else
 96  
             {
 97  0
                 message = new DefaultMuleMessage(part, muleContext);
 98  
             }
 99  
 
 100  0
             if (enableCorrelation != CorrelationMode.NEVER)
 101  
             {
 102  0
                 boolean correlationSet = message.getCorrelationId() != null;
 103  0
                 if ((!correlationSet && (enableCorrelation == CorrelationMode.IF_NOT_SET))
 104  
                     || (enableCorrelation == CorrelationMode.ALWAYS))
 105  
                 {
 106  0
                     message.setCorrelationId(correlationId);
 107  
                 }
 108  
 
 109  
                 // take correlation group size from the message properties, set by
 110  
                 // concrete
 111  
                 // message splitter implementations
 112  0
                 message.setCorrelationGroupSize(parts.size());
 113  0
                 message.setCorrelationSequence(correlationSequence++);
 114  
             }
 115  0
             resultEvents.add(processNext(new DefaultMuleEvent(message, event)));
 116  0
         }
 117  0
         return resultEvents;
 118  
     }
 119  
 
 120  
     public void setEnableCorrelation(CorrelationMode enableCorrelation)
 121  
     {
 122  0
         this.enableCorrelation = enableCorrelation;
 123  0
     }
 124  
 
 125  
     public void setMuleContext(MuleContext context)
 126  
     {
 127  0
         this.muleContext = context;
 128  0
     }
 129  
 
 130  
     public void setMessageInfoMapping(MessageInfoMapping messageInfoMapping)
 131  
     {
 132  0
         this.messageInfoMapping = messageInfoMapping;
 133  0
     }
 134  
 
 135  
 }