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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() |
30 | 0 | { |
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try |
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{ |
33 | 0 | builder = DocumentBuilderFactory.newInstance().newDocumentBuilder(); |
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} |
35 | 0 | catch (ParserConfigurationException e) |
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{ |
37 | 0 | throw new ExpressionRuntimeException(XmlMessages.failedToCreateDocumentBuilder(), e); |
38 | 0 | } |
39 | 0 | } |
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@Override |
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protected Object extractResultFromNode(Object result) |
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{ |
44 | 0 | if (result instanceof Element) |
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{ |
46 | 0 | ((Element) result).detach(); |
47 | 0 | return DocumentHelper.createDocument((Element) result); |
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} |
49 | 0 | else if (result instanceof org.w3c.dom.Element) |
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{ |
51 | 0 | return extractW3CElement(result); |
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} |
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else |
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{ |
55 | 0 | return result; |
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} |
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} |
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protected Object extractW3CElement(Object result) |
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{ |
61 | 0 | org.w3c.dom.Element element = (org.w3c.dom.Element) result; |
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63 | 0 | Document doc = builder.newDocument(); |
64 | 0 | doc.appendChild(doc.importNode(element, true)); |
65 | 0 | return doc; |
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} |
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@Override |
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public String getName() |
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{ |
74 | 0 | return NAME; |
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} |
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} |