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package org.mule.transformer.simple; |
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import org.mule.api.transformer.TransformerException; |
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import org.mule.config.i18n.MessageFactory; |
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import org.mule.transformer.AbstractTransformer; |
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import org.mule.transformer.types.DataTypeFactory; |
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import java.util.Map; |
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public class MapLookup extends AbstractTransformer |
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{ |
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protected volatile Object key; |
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public MapLookup() |
26 | 0 | { |
27 | 0 | registerSourceType(DataTypeFactory.create(Map.class)); |
28 | 0 | setReturnDataType(DataTypeFactory.OBJECT); |
29 | 0 | } |
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@Override |
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public Object doTransform(Object src, String encoding) throws TransformerException |
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{ |
34 | 0 | if (src instanceof Map) |
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{ |
36 | 0 | if (key != null) |
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{ |
38 | 0 | return ((Map) src).get(key); |
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} |
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else |
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{ |
42 | 0 | throw new TransformerException(MessageFactory |
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.createStaticMessage("Property 'key' must be set in order to use this transformer.")); |
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} |
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} |
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else |
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{ |
48 | 0 | throw new TransformerException(MessageFactory |
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.createStaticMessage("Message to transform must be of type java.util.Map")); |
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} |
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} |
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public Object getKey() |
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{ |
55 | 0 | return key; |
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} |
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public void setKey(Object key) |
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{ |
60 | 0 | this.key = key; |
61 | 0 | } |
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} |