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package org.mule.module.xml.expression; |
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import org.mule.api.expression.ExpressionRuntimeException; |
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import org.mule.module.xml.i18n.XmlMessages; |
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import javax.xml.parsers.DocumentBuilder; |
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import javax.xml.parsers.DocumentBuilderFactory; |
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import javax.xml.parsers.ParserConfigurationException; |
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import org.dom4j.DocumentHelper; |
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import org.dom4j.Element; |
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import org.w3c.dom.Document; |
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public class XPathNodeExpressionEvaluator extends XPathExpressionEvaluator |
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{ |
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public static final String NAME = "xpath-node"; |
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private DocumentBuilder builder; |
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public XPathNodeExpressionEvaluator() |
34 | 0 | { |
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try |
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{ |
37 | 0 | builder = DocumentBuilderFactory.newInstance().newDocumentBuilder(); |
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} |
39 | 0 | catch (ParserConfigurationException e) |
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{ |
41 | 0 | throw new ExpressionRuntimeException(XmlMessages.failedToCreateDocumentBuilder(), e); |
42 | 0 | } |
43 | 0 | } |
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protected Object extractResultFromNode(Object result) |
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{ |
47 | 0 | if (result instanceof Element) |
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{ |
49 | 0 | ((Element) result).detach(); |
50 | 0 | return DocumentHelper.createDocument((Element) result); |
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} |
52 | 0 | else if (result instanceof org.w3c.dom.Element) |
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{ |
54 | 0 | Document doc = builder.newDocument(); |
55 | 0 | doc.appendChild((org.w3c.dom.Element) result); |
56 | 0 | return doc; |
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} |
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else |
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{ |
60 | 0 | return result; |
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} |
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} |
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public String getName() |
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{ |
69 | 0 | return NAME; |
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} |
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} |