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package org.apache.camel.builder; |
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import java.util.ArrayList; |
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import java.util.List; |
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import org.apache.camel.Predicate; |
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import org.apache.camel.Processor; |
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import org.apache.camel.processor.ChoiceProcessor; |
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import org.apache.camel.processor.FilterProcessor; |
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public class ChoiceBuilder extends FromBuilder { |
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private final FromBuilder parent; |
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private List<WhenBuilder> predicateBuilders = new ArrayList<WhenBuilder>(); |
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private FromBuilder otherwise; |
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public ChoiceBuilder(FromBuilder parent) { |
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super(parent); |
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this.parent = parent; |
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} |
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@Fluent(nestedActions=true) |
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public WhenBuilder when( |
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@FluentArg(value="predicate",element=true) |
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Predicate predicate) { |
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WhenBuilder answer = new WhenBuilder(this, predicate); |
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predicateBuilders.add(answer); |
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return answer; |
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} |
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@Fluent(nestedActions=true) |
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public FromBuilder otherwise() { |
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this.otherwise = new FromBuilder(parent); |
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return otherwise; |
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} |
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public List<WhenBuilder> getPredicateBuilders() { |
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return predicateBuilders; |
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} |
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public FromBuilder getOtherwise() { |
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return otherwise; |
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} |
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@Override |
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public Processor createProcessor() throws Exception { |
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List<FilterProcessor> filters = new ArrayList<FilterProcessor>(); |
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for (WhenBuilder predicateBuilder : predicateBuilders) { |
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filters.add(predicateBuilder.createProcessor()); |
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} |
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Processor otherwiseProcessor = null; |
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if (otherwise != null) { |
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otherwiseProcessor = otherwise.createProcessor(); |
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} |
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return new ChoiceProcessor(filters, otherwiseProcessor); |
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} |
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} |