Example usage for javax.xml.xpath XPathFactory newInstance

Introduction

In this page you can find the example usage for javax.xml.xpath XPathFactory newInstance.

Prototype

public static XPathFactory newInstance()

Source Link

Document

Get a new XPathFactory instance using the default object model, #DEFAULT_OBJECT_MODEL_URI , the W3C DOM.

This method is functionally equivalent to:

 newInstance(DEFAULT_OBJECT_MODEL_URI)

Since the implementation for the W3C DOM is always available, this method will never fail.

Usage

From source file:Main.java

public static Element getElementByXPath(Element e, String xPathExpression) throws XPathExpressionException {
    XPathFactory factory = XPathFactory.newInstance();
    XPath xPath = factory.newXPath();

    return (Element) (xPath.evaluate(xPathExpression, e, XPathConstants.NODE));

}

From source file:Main.java

public static NodeList getXmlNodeSetForExpression(String expression, String is)
        throws XPathExpressionException {
    XPath xpath = XPathFactory.newInstance().newXPath();
    InputSource inputSource = new InputSource(new StringReader(is));
    return (NodeList) xpath.evaluate(expression, inputSource, XPathConstants.NODESET);
}

From source file:Main.java

public static HashMap xmltoHashMap222(String xmlFile, String xpath) {
    try {/* w ww. j  a  v a 2 s . c o m*/
        XPathFactory factory = XPathFactory.newInstance();
        XPath xPath = factory.newXPath();
        // XPathExpression xPathExpression =
        // xPath.compile("/history");
        File xmlDocument = new File(xmlFile);
        InputSource inputSource = new InputSource(new FileInputStream(xmlDocument));
        // String root = xPath.evaluate("/", inputSource);
        NodeList nodes = (NodeList) xPath.evaluate(xpath, inputSource, XPathConstants.NODESET);
        HashMap hashmap = new HashMap();
        for (int x = 0; x < nodes.getLength(); x++) {
            hashmap.put(nodes.item(x).getNodeName(), nodes.item(x).getTextContent());
        }
        return hashmap;
    } catch (Exception ex) {
        return null;
    }
}

From source file:Main.java

public static Vector<String> readXMLNode222(String xmlFile, String xpath) {
    try {//  w w w . j  a  va 2s  .  c  o  m
        XPathFactory factory = XPathFactory.newInstance();
        XPath xPath = factory.newXPath();
        // XPathExpression xPathExpression =
        // xPath.compile("/history");
        File xmlDocument = new File(xmlFile);
        InputSource inputSource = new InputSource(new FileInputStream(xmlDocument));
        // String root = xPath.evaluate("/", inputSource);
        NodeList nodes = (NodeList) xPath.evaluate(xpath, inputSource, XPathConstants.NODESET);
        Vector<String> vector = new Vector<String>();
        for (int x = 0; x < nodes.getLength(); x++) {
            vector.add(nodes.item(x).getTextContent());
        }
        return vector;
    } catch (Exception ex) {
        ex.printStackTrace();
        return new Vector();
    }
}

From source file:Main.java

public static Vector<Element> findElements(String xpath, Node scope) throws XPathExpressionException {
    XPathFactory xpf = XPathFactory.newInstance();
    XPath xp = xpf.newXPath();/*from   w  ww .j  ava  2 s.c  o m*/
    NodeList nl;
    Vector<Element> elements = new Vector<Element>();

    nl = (NodeList) xp.evaluate(xpath, scope, XPathConstants.NODESET);

    for (int i = 0; i < nl.getLength(); i++)
        elements.add((Element) nl.item(i));

    return elements;
}

From source file:Main.java

public static NodeList getNodeList(Document doc, String xPathAsString) throws XPathExpressionException {
    XPath xpath = XPathFactory.newInstance().newXPath();
    XPathExpression expr = xpath.compile(xPathAsString);
    return (NodeList) expr.evaluate(doc, XPathConstants.NODESET);
}

From source file:Main.java

/**
 * This method yields the XPath Factory (creating it if necessary).
 * @return The XPathFactory object.//from  ww  w. j a  v  a2 s.  c  o m
 *
 * @author <a href='mailto:intere@gmail.com'>Eric Internicola</a>
 */
protected static synchronized XPathFactory getXPathFactory() {
    if (xpathFactory == null) {
        xpathFactory = XPathFactory.newInstance();
    }

    return xpathFactory;
}

From source file:Main.java

private static Node getNodeById(Document doc, String id) throws XPathExpressionException {
    XPath xpath = XPathFactory.newInstance().newXPath();
    XPathExpression expr = xpath.compile("//" + MESSAGE + "[@id='" + id + "']");
    return (Node) expr.evaluate(doc, XPathConstants.NODE);
}

From source file:Main.java

public static Object executeXPath(Document document, String expression, QName outputType) {
    Object result = null;//w  w  w .j  ava  2  s  . co m
    XPathFactory xPathfactory = XPathFactory.newInstance();
    XPath xpath = xPathfactory.newXPath();
    XPathExpression expr;
    try {
        expr = xpath.compile(expression);
        result = expr.evaluate(document, outputType);
    } catch (XPathExpressionException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    return result;
}

From source file:Main.java

private static Object getValue(final String xpathExpression, final Node node, final QName type,
        final NamespaceContext nsContext) throws XPathExpressionException {

    final XPathFactory factory = XPathFactory.newInstance();
    final XPath xpath = factory.newXPath();
    xpath.setNamespaceContext(nsContext);
    return xpath.evaluate(xpathExpression, node, type);
}