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package org.mule.routing; |
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import org.mule.DefaultMuleEvent; |
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import org.mule.DefaultMuleMessage; |
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import org.mule.api.MuleContext; |
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import org.mule.api.MuleEvent; |
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import org.mule.api.MuleException; |
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import org.mule.api.MuleMessage; |
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import org.mule.api.context.MuleContextAware; |
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import org.mule.api.routing.MessageInfoMapping; |
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import org.mule.api.routing.RouterResultsHandler; |
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import org.mule.processor.AbstractInterceptingMessageProcessor; |
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import java.util.ArrayList; |
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import java.util.List; |
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35 | 0 | public abstract class AbstractSplitter extends |
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AbstractInterceptingMessageProcessor implements MuleContextAware |
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{ |
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protected MuleContext muleContext; |
40 | 0 | protected RouterResultsHandler resultsHandler = new DefaultRouterResultsHandler(); |
41 | 0 | protected CorrelationMode enableCorrelation = CorrelationMode.IF_NOT_SET; |
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protected MessageInfoMapping messageInfoMapping; |
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public MuleEvent process(MuleEvent event) throws MuleException |
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{ |
46 | 0 | if (isSplitRequired(event)) |
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{ |
48 | 0 | List<MuleMessage> parts = splitMessage(event); |
49 | 0 | if (parts.size() > 0) |
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{ |
51 | 0 | if (parts.size() <= 1) |
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{ |
53 | 0 | logger.warn("Splitter only returned a single result. If this is not expected, please check your split expression"); |
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} |
55 | 0 | return resultsHandler.aggregateResults(processParts(parts, event), event, muleContext); |
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} |
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else |
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{ |
59 | 0 | logger.warn("Splitter returned no results. If this is not expected, please check your split expression"); |
60 | 0 | return null; |
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} |
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} |
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else |
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{ |
65 | 0 | return processNext(event); |
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} |
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} |
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protected boolean isSplitRequired(MuleEvent event) |
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{ |
71 | 0 | return true; |
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} |
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protected abstract List<MuleMessage> splitMessage(MuleEvent event) throws MuleException; |
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protected List<MuleEvent> processParts(List parts, MuleEvent event) throws MuleException |
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{ |
78 | 0 | if (messageInfoMapping == null) |
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{ |
80 | 0 | messageInfoMapping = event.getFlowConstruct().getMessageInfoMapping(); |
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} |
82 | 0 | String correlationId = messageInfoMapping.getCorrelationId( |
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event.getMessage()); |
84 | 0 | List<MuleEvent> resultEvents = new ArrayList<MuleEvent>(); |
85 | 0 | int correlationSequence = 1; |
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87 | 0 | for (Object part : parts) |
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{ |
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MuleMessage message; |
90 | 0 | if (part instanceof MuleMessage) |
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{ |
92 | 0 | message = (MuleMessage) part; |
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} |
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else |
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{ |
96 | 0 | message = new DefaultMuleMessage(part, muleContext); |
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} |
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99 | 0 | if (enableCorrelation != CorrelationMode.NEVER) |
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{ |
101 | 0 | boolean correlationSet = message.getCorrelationId() != null; |
102 | 0 | if ((!correlationSet && (enableCorrelation == CorrelationMode.IF_NOT_SET)) |
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|| (enableCorrelation == CorrelationMode.ALWAYS)) |
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{ |
105 | 0 | message.setCorrelationId(correlationId); |
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} |
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111 | 0 | message.setCorrelationGroupSize(parts.size()); |
112 | 0 | message.setCorrelationSequence(correlationSequence++); |
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} |
114 | 0 | resultEvents.add(processNext(new DefaultMuleEvent(message, event))); |
115 | 0 | } |
116 | 0 | return resultEvents; |
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} |
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public void setEnableCorrelation(CorrelationMode enableCorrelation) |
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{ |
121 | 0 | this.enableCorrelation = enableCorrelation; |
122 | 0 | } |
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public void setMuleContext(MuleContext context) |
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{ |
126 | 0 | this.muleContext = context; |
127 | 0 | } |
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public void setMessageInfoMapping(MessageInfoMapping messageInfoMapping) |
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{ |
131 | 0 | this.messageInfoMapping = messageInfoMapping; |
132 | 0 | } |
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} |