Example usage for javax.xml.xpath XPathExpression evaluate

Introduction

In this page you can find the example usage for javax.xml.xpath XPathExpression evaluate.

Prototype

public Object evaluate(InputSource source, QName returnType) throws XPathExpressionException;

Source Link

Document

Evaluate the compiled XPath expression in the context of the specified InputSource and return the result as the specified type.

Usage

From source file:Main.java

public static int getInt(Object node, XPathExpression expression) throws XPathExpressionException {
    return ((Double) expression.evaluate(node, XPathConstants.NUMBER)).intValue();
}

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

/**
 * Get the XML Nodes for the specified XPath.
 * //from w  w w.  j a  v  a  2  s.  c  o  m
 * @param path
 *            - XPath String
 * @param parent
 *            - Parent Node.
 * @return
 * @throws Exception
 */
public static NodeList search(String path, Element parent) throws Exception {
    // XPath Query for showing all nodes value
    XPathExpression expr = xpath.compile(path);
    return (NodeList) expr.evaluate(parent, XPathConstants.NODESET);
}

From source file:Main.java

public static NodeList getNodeList(Object node, XPathExpression expression) throws XPathExpressionException {
    return (NodeList) expression.evaluate(node, XPathConstants.NODESET);
}

From source file:Main.java

public static NodeList getNodeListViaXPath(String xpathExpr, String xml) throws Exception {
    DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
    DocumentBuilder builder = factory.newDocumentBuilder();
    Document doc = builder.parse(xml);
    XPathFactory xPathfactory = XPathFactory.newInstance();
    XPath xpath = xPathfactory.newXPath();
    XPathExpression expr = xpath.compile(xpathExpr);

    NodeList nl = (NodeList) expr.evaluate(doc, XPathConstants.NODESET);

    return nl;/*from  www .  jav  a 2s.  c  o  m*/
}

From source file:Main.java

public static Object xpathFind(Document doc, String xpath, QName returnType) {
    try {/*from   w ww.  ja  v a  2  s.c o m*/
        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 getNodes(Object doc, String query) throws XPathExpressionException {
    XPath xpath = XPathFactory.newInstance().newXPath();
    XPathExpression expr = xpath.compile(query);
    Object result = expr.evaluate(doc, XPathConstants.NODESET);
    NodeList nodes = (NodeList) result;
    return nodes;
}

From source file:Main.java

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

From source file:Main.java

/**
 * Get a node from an XPath expression.//from w ww .  j  a  va2 s  .  co  m
 * 
 * @param node node
 * @param expr XPath expression
 * @return node list
 * @throws XPathExpressionException 
 */
public static Node getNode(Node node, XPathExpression expr) throws XPathExpressionException {
    return (Node) expr.evaluate(node, XPathConstants.NODE);
}

From source file:Main.java

/**
 * Get one element from XML document using xpath expression
 * /*  w  ww. ja va 2s. c o m*/
 * @param doc
 * @param expression
 * @return
 * @throws XPathExpressionException
 */
public static Element getElement(final Document doc, final String expression) throws XPathExpressionException {
    if (null == expression || expression.isEmpty() || null == doc) {
        return null;
    }
    log.finer("Executing xpath xpression " + expression);
    XPath xPath = XPathFactory.newInstance().newXPath();
    XPathExpression expr = xPath.compile(expression);
    Object result = expr.evaluate(doc, XPathConstants.NODE);
    return (Element) result;
}