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 XPathExpression compileXPathExpression(String xPathExpression) {

    final XPathFactory factory = XPathFactory.newInstance();
    final XPath xpath = factory.newXPath();
    try {/*from w  w w.j a va  2s.  c om*/
        return xpath.compile(xPathExpression);
    } catch (XPathExpressionException e) {
        throw new RuntimeException("Internal error, invalid XPATH expression " + xPathExpression, e);
    }
}

From source file:Main.java

/**
 * Evaluates a boolean xpath. Expensive as it creates a new xpath for every evaluation.
 */// w  w  w  .java2s .  c o  m
public static boolean evaluateBoolean(String xpathExpression, Document doc) throws XPathExpressionException {
    javax.xml.xpath.XPathFactory factory = javax.xml.xpath.XPathFactory.newInstance();
    XPath xpath = factory.newXPath();
    Boolean result = (Boolean) xpath.evaluate(xpathExpression, doc, XPathConstants.BOOLEAN);
    return result;
}

From source file:Main.java

public static Node selectSingleNode(String express, Object source) {
    Node result = null;//from   w  w w  .  j  a v  a  2s.  c  o  m
    XPathFactory xpathFactory = XPathFactory.newInstance();
    XPath xpath = xpathFactory.newXPath();
    try {
        result = (Node) xpath.evaluate(express, source, XPathConstants.NODE);
    } catch (XPathExpressionException e) {
        e.printStackTrace();
    }

    return result;
}

From source file:Main.java

public static NodeList selectNodes(String express, Object source) {
    NodeList result = null;/* w  w  w  . ja  v a 2s  . co m*/
    XPathFactory xpathFactory = XPathFactory.newInstance();
    XPath xpath = xpathFactory.newXPath();
    try {
        result = (NodeList) xpath.evaluate(express, source, XPathConstants.NODESET);
    } catch (XPathExpressionException e) {
        e.printStackTrace();
    }

    return result;
}

From source file:Main.java

public static HashMap xmltoHashMap222(String xmlFile, String xpath) {
    try {/*from ww  w .  ja 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

private static Document getDoc(String filePath) throws ParserConfigurationException, SAXException, IOException {
    DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
    factory.setNamespaceAware(true);//from   w  w w.  j a  v  a2  s  .com
    DocumentBuilder builder = null;
    XPathFactory xpathFactory = XPathFactory.newInstance();
    XPath xpath = xpathFactory.newXPath();
    builder = factory.newDocumentBuilder();
    Document doc = builder.parse(filePath);

    return doc;
}

From source file:Main.java

public static Vector<String> readXMLNode222(String xmlFile, String xpath) {
    try {/*from   ww  w .j a  va2  s  . com*/
        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

/**
 * Evaluate an XPath against a Document, returning a String.
 * /*from w  ww  .j av a  2s.  c  o  m*/
 * @param doc Document
 * @param xp XPath to evaluate against Document
 * @return String found at path or null
 */
public static String xpathOrNull(Document doc, String xp) {
    XPathFactory factory = XPathFactory.newInstance();
    XPath xpath = factory.newXPath();
    try {
        XPathExpression expr = xpath.compile(xp);
        return expr.evaluate(doc);
    } catch (XPathExpressionException e) {
        return null;
    }
}

From source file:Main.java

private static XPathExpression evaluateThePath(String xPath) throws XPathExpressionException {
    XPathFactory xPathfactory = XPathFactory.newInstance();
    XPath xpath = xPathfactory.newXPath();
    return xpath.compile(xPath + "/text()");//small hack to get to the actual value as this is what we actually need and is mostly used
}

From source file:Main.java

public static String getValueAsString(String filePath, String value)
        throws ParserConfigurationException, SAXException, IOException {
    String id = null;/*  w ww .j  a v a2 s. co  m*/
    XPathFactory xpathFactory = XPathFactory.newInstance();
    XPath xpath = xpathFactory.newXPath();
    try {
        XPathExpression expr = xpath.compile(value);
        id = (String) expr.evaluate(getDoc(filePath), XPathConstants.STRING);
    } catch (XPathExpressionException e) {
        e.printStackTrace();
    }

    return id;
}