Coverage Report - org.mule.routing.AbstractSplitter
 
Classes in this File Line Coverage Branch Coverage Complexity
AbstractSplitter
0%
0/39
0%
0/22
0
 
 1  
 /*
 2  
  * Copyright (c) MuleSoft, Inc.  All rights reserved.  http://www.mulesoft.com
 3  
  * The software in this package is published under the terms of the CPAL v1.0
 4  
  * license, a copy of which has been included with this distribution in the
 5  
  * LICENSE.txt file.
 6  
  */
 7  
 package org.mule.routing;
 8  
 
 9  
 import org.mule.DefaultMuleEvent;
 10  
 import org.mule.DefaultMuleMessage;
 11  
 import org.mule.api.MuleContext;
 12  
 import org.mule.api.MuleEvent;
 13  
 import org.mule.api.MuleException;
 14  
 import org.mule.api.MuleMessage;
 15  
 import org.mule.api.context.MuleContextAware;
 16  
 import org.mule.api.routing.MessageInfoMapping;
 17  
 import org.mule.api.routing.RouterResultsHandler;
 18  
 import org.mule.processor.AbstractInterceptingMessageProcessor;
 19  
 
 20  
 import java.util.ArrayList;
 21  
 import java.util.List;
 22  
 
 23  
 /**
 24  
  * Splits a message invoking the next message processor one for each split part.
 25  
  * Implementations must implement {@link #splitMessage(MuleEvent)} and determine how
 26  
  * the message is split.
 27  
  *
 28  
  * <p>
 29  
  * <b>EIP Reference:</b> <a href="http://www.eaipatterns.com/Sequencer.html">http://www.eaipatterns.com/Sequencer.html</a>
 30  
  */
 31  
 
 32  0
 public abstract class AbstractSplitter extends
 33  
     AbstractInterceptingMessageProcessor implements MuleContextAware
 34  
 {
 35  
 
 36  
     protected MuleContext muleContext;
 37  0
     protected RouterResultsHandler resultsHandler = new DefaultRouterResultsHandler();
 38  0
     protected CorrelationMode enableCorrelation = CorrelationMode.IF_NOT_SET;
 39  
     protected MessageInfoMapping messageInfoMapping;
 40  
 
 41  
     public MuleEvent process(MuleEvent event) throws MuleException
 42  
     {
 43  0
         if (isSplitRequired(event))
 44  
         {
 45  0
             List<MuleMessage> parts = splitMessage(event);
 46  0
             if (parts.size() > 0)
 47  
             {
 48  0
                 if (parts.size() <= 1)
 49  
                 {
 50  0
                     logger.warn("Splitter only returned a single result. If this is not expected, please check your split expression");
 51  
                 }
 52  0
                 return resultsHandler.aggregateResults(processParts(parts, event), event, muleContext);
 53  
             }
 54  
             else
 55  
             {
 56  0
                 logger.warn("Splitter returned no results. If this is not expected, please check your split expression");
 57  0
                 return null;
 58  
             }
 59  
         }
 60  
         else
 61  
         {
 62  0
             return processNext(event);
 63  
         }
 64  
     }
 65  
 
 66  
     protected boolean isSplitRequired(MuleEvent event)
 67  
     {
 68  0
         return true;
 69  
     }
 70  
 
 71  
     protected abstract List<MuleMessage> splitMessage(MuleEvent event) throws MuleException;
 72  
 
 73  
     protected List<MuleEvent> processParts(List parts, MuleEvent event) throws MuleException
 74  
     {
 75  0
         if (messageInfoMapping == null)
 76  
         {
 77  0
             messageInfoMapping = event.getFlowConstruct().getMessageInfoMapping();
 78  
         }
 79  0
         String correlationId = messageInfoMapping.getCorrelationId(
 80  
             event.getMessage());
 81  0
         List<MuleEvent> resultEvents = new ArrayList<MuleEvent>();
 82  0
         int correlationSequence = 1;
 83  
 
 84  0
         MuleMessage originalMessage = event.getMessage();
 85  0
         for (Object part : parts)
 86  
         {
 87  
             MuleMessage message;
 88  0
             if (part instanceof MuleMessage)
 89  
             {
 90  0
                 message = (MuleMessage) part;
 91  
             }
 92  
             else
 93  
             {               
 94  0
                 message = new DefaultMuleMessage(originalMessage, muleContext);
 95  0
                 message.setPayload(part);
 96  
             }
 97  
 
 98  0
             if (enableCorrelation != CorrelationMode.NEVER)
 99  
             {
 100  0
                 boolean correlationSet = message.getCorrelationId() != null;
 101  0
                 if ((!correlationSet && (enableCorrelation == CorrelationMode.IF_NOT_SET))
 102  
                     || (enableCorrelation == CorrelationMode.ALWAYS))
 103  
                 {
 104  0
                     message.setCorrelationId(correlationId);
 105  
                 }
 106  
 
 107  
                 // take correlation group size from the message properties, set by
 108  
                 // concrete
 109  
                 // message splitter implementations
 110  0
                 message.setCorrelationGroupSize(parts.size());
 111  0
                 message.setCorrelationSequence(correlationSequence++);
 112  
             }
 113  0
             resultEvents.add(processNext(new DefaultMuleEvent(message, event)));
 114  0
         }
 115  0
         return resultEvents;
 116  
     }
 117  
 
 118  
     public void setEnableCorrelation(CorrelationMode enableCorrelation)
 119  
     {
 120  0
         this.enableCorrelation = enableCorrelation;
 121  0
     }
 122  
 
 123  
     public void setMuleContext(MuleContext context)
 124  
     {
 125  0
         this.muleContext = context;
 126  0
     }
 127  
 
 128  
     public void setMessageInfoMapping(MessageInfoMapping messageInfoMapping)
 129  
     {
 130  0
         this.messageInfoMapping = messageInfoMapping;
 131  0
     }
 132  
 
 133  
 }