Example usage for org.dom4j DocumentFactory createXPath

Introduction

In this page you can find the example usage for org.dom4j DocumentFactory createXPath.

Prototype

public XPath createXPath(String xpathExpression) throws InvalidXPathException 

Source Link

Document

createXPath parses an XPath expression and creates a new XPath XPath instance.

Usage

From source file:com.liferay.alloy.tools.builder.taglib.TagBuilder.java

License:Open Source License

protected Document mergeTlds(Document sourceDoc, Document targetDoc) {
    Element targetRoot = targetDoc.getRootElement();

    DocumentFactory factory = SAXReaderUtil.getDocumentFactory();

    XPath xpathTags = factory.createXPath("//tld:tag");

    Map<String, String> namespaceContextMap = new HashMap<String, String>();

    namespaceContextMap.put(_TLD_XPATH_PREFIX, _TLD_XPATH_URI);

    NamespaceContext namespaceContext = new AlloyGeneratorNamespaceContext(namespaceContextMap);

    xpathTags.setNamespaceContext(namespaceContext);

    List<Node> sources = xpathTags.selectNodes(sourceDoc);

    for (Node source : sources) {
        Element sourceElement = (Element) source;

        String sourceName = sourceElement.elementText("name");

        String xpathTagValue = "//tld:tag[tld:name='" + sourceName + "']";

        XPath xpathTag = factory.createXPath(xpathTagValue);

        xpathTag.setNamespaceContext(namespaceContext);

        List<Node> targets = xpathTag.selectNodes(targetDoc);

        if (targets.size() > 0) {
            Element targetElement = (Element) targets.get(0);

            XPath xpathAttributes = factory.createXPath(xpathTagValue + "//tld:attribute");

            Map<String, String> namespaces = new HashMap<String, String>();

            namespaces.put("tld", StringPool.EMPTY);

            xpathAttributes.setNamespaceURIs(namespaces);

            List<Node> sourceAttributes = xpathAttributes.selectNodes(source);

            for (Node sourceAttribute : sourceAttributes) {
                Element sourceAttributeElement = (Element) sourceAttribute;

                String attributeName = sourceAttributeElement.elementText("name");

                String xpathAttributeValue = "//tld:attribute[tld:name='" + attributeName + "']";

                XPath xpathAttribute = factory.createXPath(xpathTagValue + xpathAttributeValue);

                xpathAttribute.setNamespaceContext(namespaceContext);

                Node targetAttribute = xpathAttribute.selectSingleNode(targetElement);

                if (targetAttribute != null) {
                    targetAttribute.detach();
                }//from   www  .  j  a  va  2 s . c om

                targetElement.add(sourceAttributeElement.createCopy());
            }

            Element dynamicAttrElement = targetElement.element("dynamic-attributes");

            if (dynamicAttrElement != null) {
                targetElement.add(dynamicAttrElement.detach());
            }
        } else {
            targetRoot.add(sourceElement.createCopy());
        }
    }

    return targetDoc;
}

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From source file:org.orbeon.oxf.xml.dom4j.Dom4jUtils.java

License:Open Source License

public static XPath createXPath(final String expression) throws InvalidXPathException {
    final DocumentFactory factory = NonLazyUserDataDocumentFactory.getInstance();
    return factory.createXPath(expression);
}

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