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 String getFirstValueFromXPath(Element parent, String xpath) throws Exception {
    try {//ww  w.j  a  v a2  s.  c  om
        XPath xPath = XPathFactory.newInstance().newXPath();
        return (String) xPath.compile(xpath).evaluate(parent, XPathConstants.STRING);
    } catch (XPathExpressionException xpee) {
        throw new Exception(xpee.getMessage());
    }
}

From source file:Main.java

/**
 * Get xpath expression object by xpath string
 * /*  w  w w .j a v  a  2s. c o  m*/
 * @param xpathStr
 * @return
 * @throws Exception
 */
public static XPathExpression getXPathExpression(String xpathStr) throws Exception {
    return XPathFactory.newInstance().newXPath().compile(xpathStr);
}

From source file:Main.java

public static Object evalXPathExpr(String pathExpr, Document xmlDocument, QName returnType) {
    XPathFactory xPathFactory = XPathFactory.newInstance();
    XPath xpathObj = xPathFactory.newXPath();
    XPathExpression expr;/* w w  w. j  a va  2 s . com*/
    Object result = null;
    try {
        expr = xpathObj.compile(pathExpr);
        result = expr.evaluate(xmlDocument, returnType);
    } catch (XPathExpressionException e1) {
        // TODO Auto-generated catch block
        e1.printStackTrace();
    }
    return result;
}

From source file:Main.java

public static void deepCopyDocument(Document ttml, File target) throws IOException {
    try {//  w  ww .  j  av a  2s . co m
        XPathFactory xPathfactory = XPathFactory.newInstance();
        XPath xpath = xPathfactory.newXPath();
        XPathExpression expr = xpath.compile("//*/@backgroundImage");
        NodeList nl = (NodeList) expr.evaluate(ttml, XPathConstants.NODESET);
        for (int i = 0; i < nl.getLength(); i++) {
            Node backgroundImage = nl.item(i);
            URI backgroundImageUri = URI.create(backgroundImage.getNodeValue());
            if (!backgroundImageUri.isAbsolute()) {
                copyLarge(new URI(ttml.getDocumentURI()).resolve(backgroundImageUri).toURL().openStream(),
                        new File(target.toURI().resolve(backgroundImageUri).toURL().getFile()));
            }
        }
        copyLarge(new URI(ttml.getDocumentURI()).toURL().openStream(), target);

    } catch (XPathExpressionException e) {
        throw new IOException(e);
    } catch (URISyntaxException e) {
        throw new IOException(e);
    }
}

From source file:Main.java

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

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

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

    return elements;
}

From source file:Main.java

public static synchronized boolean deleteNode(String charCode, Node root) {
    try {// w ww .  j  av a  2s . co  m
        XPath xpath = XPathFactory.newInstance().newXPath();
        Node node = (Node) xpath.evaluate(String.format(XPATH_EVAL_ID, charCode), root, XPathConstants.NODE);
        if (node != null) { // remove existing node
            Node parent = node.getParentNode();
            parent.removeChild(node);
            return true;
        }
    } catch (XPathExpressionException e) {
        e.printStackTrace();
    }
    return false;
}

From source file:Main.java

public static String retrieveElementByXMLtag(String xPathExpression) throws XPathExpressionException {
    XPath xpath = XPathFactory.newInstance().newXPath();
    XPathExpression expr = xpath.compile(xPathExpression);
    return expr.evaluate(doc, XPathConstants.STRING).toString();
}

From source file:Main.java

/**
 * @param xpathExp// ww w . j a v  a  2 s. c  o  m
 * @return
 * @throws XPathExpressionException
 */
public static XPathExpression createXpath(String xpathExp) throws XPathExpressionException {
    XPathFactory xFactory = XPathFactory.newInstance();
    XPath xPath = xFactory.newXPath();

    XPathExpression expr = xPath.compile(xpathExp);
    return expr;
}

From source file:Main.java

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

From source file:Main.java

public static String xpath(String xml, String xpath) throws Exception {
    XPath xp = XPathFactory.newInstance().newXPath();
    Document doc = parse(xml);//from  w ww  . j  a  va2s .c  o m
    return xp.evaluate(xpath, doc.getDocumentElement());
}