Example usage for javax.xml.xpath XPathFactory newXPath

Introduction

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

Prototype

public abstract XPath newXPath();

Source Link

Document

Return a new XPath using the underlying object model determined when the XPathFactory was instantiated.

Usage

From source file:Main.java

public static String evaluate(File xmlFile, String xPathExpression) {
    String result = null;/*from   w  ww.  j  a va 2  s . c  om*/

    try {
        XPathFactory factory = XPathFactory.newInstance();
        XPath xPath = factory.newXPath();
        result = xPath.evaluate(xPathExpression, new InputSource(new FileInputStream(xmlFile)));
    } catch (Exception ex) {
        System.out.println(ex.getMessage());
    }

    return result;
}

From source file:Main.java

public static Object evaluateXpath(String expression, Object node, QName returnType, NamespaceContext nsContext)
        throws XPathExpressionException {
    XPathFactory xpathFactory = XPathFactory.newInstance();
    XPath xpath = xpathFactory.newXPath();
    if (nsContext != null) {
        xpath.setNamespaceContext(nsContext);
    }/*  w  w w  .ja  v a 2s  .  c  om*/
    return xpath.evaluate(expression, node, returnType);
    // XPathExpression xpathExpr = xpath.compile(expression);
    // return xpathExpr.evaluate(node, returnType);
}

From source file:Main.java

public static List<Element> getXPathList(Node node, String expr) {
    assertNotNull("node == null", node);
    XPathFactory factory = XPathFactory.newInstance();
    XPath xpath = factory.newXPath();
    List<Element> result = new ArrayList<Element>();
    try {//from   w ww  . j a v  a 2  s . c  om
        NodeList nl = (NodeList) xpath.evaluate(expr, node, XPathConstants.NODESET);
        for (int i = 0; i < nl.getLength(); i++) {
            result.add((Element) nl.item(i));
        }
        return result;
    } catch (XPathExpressionException e) {
        throw new RuntimeException(e);
    }
}

From source file:Main.java

/**
 * Applies the specified XPath expression to the given node and returns the
 * first result.//from  w w  w.  j ava2s.c o  m
 * 
 * @param node the root element; the given XPath expression is applied to
 *        this node
 * @param path the XPath expression
 * @return the first node corresponding to the specified XPath expression
 * @throws XPathExpressionException
 */
public static Node evalFirst(Node node, String path) throws XPathExpressionException {
    XPathFactory factory = XPathFactory.newInstance();
    XPath xpath = factory.newXPath();
    XPathExpression expr = xpath.compile(path);
    final Node result = (Node) expr.evaluate(node, XPathConstants.NODE);
    return result;
}

From source file:Main.java

public static String evalXPathAsString(Object item, String xpath, XPathFactory factory)
        throws XPathExpressionException {
    XPath path = factory.newXPath();
    XPathExpression expr = path.compile(xpath);
    return (String) expr.evaluate(item, XPathConstants.STRING);
}

From source file:Main.java

public static Object xpathFind(Document doc, String xpath, QName returnType) {
    try {/*w w  w  .j  a v  a  2  s . com*/
        XPathFactory xpathFactory = XPathFactory.newInstance();
        XPath xpathToolkit = xpathFactory.newXPath();
        XPathExpression xpathExpression = xpathToolkit.compile(xpath);
        return xpathExpression.evaluate(doc, returnType);
    } catch (Exception e) {
        throw new RuntimeException("Error finding nodes for <" + xpath + ">", e);
    }
}

From source file:Main.java

public static NodeList evalXPathAsNodeList(Object item, String xpath, XPathFactory factory)
        throws XPathExpressionException {
    XPath path = factory.newXPath();
    XPathExpression expr = path.compile(xpath);
    return (NodeList) expr.evaluate(item, XPathConstants.NODESET);
}

From source file:Main.java

public static NodeList SelectNodes(Document doc, String xmlpath) {
    NodeList nodes = null;/*from www  .  j av  a  2s  .co m*/
    Object result;
    try {
        XPathFactory xFactory = XPathFactory.newInstance();
        XPath xpath = xFactory.newXPath();

        XPathExpression expr;
        expr = xpath.compile(xmlpath);
        result = expr.evaluate(doc, XPathConstants.NODESET);
        nodes = (NodeList) result;
    } catch (XPathExpressionException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

    return nodes;
}

From source file:Main.java

public static int evalXPathAsInt(Object item, String xpath, XPathFactory factory)
        throws XPathExpressionException {
    XPath path = factory.newXPath();
    XPathExpression expr = path.compile(xpath);
    Number result = (Number) expr.evaluate(item, XPathConstants.NUMBER);
    return result == null ? 0 : result.intValue();
}

From source file:Main.java

/**
 * // w w  w. j a  v  a 2 s . c  o  m
 * <B>Purpose:</B> Evaluates an XPath and returns the Node list associated
 * witht the XPath
 * 
 * @param element
 * @param xpathstring
 * @return
 * @throws XPathExpressionException
 */
public static NodeList evaluateXPath(Element element, String xpathstring) throws XPathExpressionException {
    XPathFactory factory = XPathFactory.newInstance();
    XPath xpath = factory.newXPath();
    XPathExpression expr = xpath.compile(xpathstring);
    NodeList result = (NodeList) expr.evaluate(element, XPathConstants.NODESET);

    return result;
}