Example usage for javax.xml.xpath XPathExpression evaluate

List of usage examples for javax.xml.xpath XPathExpression evaluate

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  6. 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 void main(String[] args) throws Exception {
    XPathFactory xPathFactory = XPathFactory.newInstance();
    XPath xPath = xPathFactory.newXPath();

    InputSource doc = new InputSource(new InputStreamReader(new FileInputStream(new File("file.xml"))));

    String expression = "//Home/data";
    XPathExpression xPathExpression = xPath.compile(expression);

    NodeList elem1List = (NodeList) xPathExpression.evaluate(doc, XPathConstants.NODESET);
    xPathExpression = xPath.compile("@type");

    for (int i = 0; i < elem1List.getLength(); i++) {
        System.out.println(xPathExpression.evaluate(elem1List.item(i), XPathConstants.STRING));
    }/*from   www  .  j  a v a 2 s.co m*/
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    DocumentBuilderFactory docFactory = DocumentBuilderFactory.newInstance();
    docFactory.setNamespaceAware(true);/*from   w w  w  . jav  a  2  s.  c  o m*/
    DocumentBuilder builder = docFactory.newDocumentBuilder();
    Document doc = builder.parse("data.xml");
    XPathExpression expr = XPathFactory.newInstance().newXPath().compile("/script/data");
    Object hits = expr.evaluate(doc, XPathConstants.NODESET);
    if (hits instanceof NodeList) {
        NodeList list = (NodeList) hits;
        for (int i = 0; i < list.getLength(); i++) {
            System.out.println(list.item(i).getTextContent());
        }
    }
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
    factory.setNamespaceAware(false); // never forget this!
    DocumentBuilder builder = factory.newDocumentBuilder();

    Document doc = builder.parse("/data.xml");

    XPathFactory xPathFactory = XPathFactory.newInstance();
    XPath xpath = xPathFactory.newXPath();

    XPathExpression xPathExpression = xpath.compile("//city/text()");

    Object result = xPathExpression.evaluate(doc, XPathConstants.NODESET);

    System.out.println(result.toString());

    NodeList nodes = (NodeList) result;

    System.out.println(nodes.getLength());
    for (int i = 0; i < nodes.getLength(); i++) {
        System.out.println(nodes.item(i).getNodeValue());
    }//from w  ww  .j a  v a2 s .  c  o m
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    String exp = "/configs/markets/market";
    String path = "data.xml";

    Document xmlDocument = DocumentBuilderFactory.newInstance().newDocumentBuilder().parse(path);

    XPath xPath = XPathFactory.newInstance().newXPath();
    XPathExpression xPathExpression = xPath.compile(exp);
    NodeList nodes = (NodeList) xPathExpression.evaluate(xmlDocument, XPathConstants.NODESET);

    Document newXmlDocument = DocumentBuilderFactory.newInstance().newDocumentBuilder().newDocument();
    Element root = newXmlDocument.createElement("root");
    newXmlDocument.appendChild(root);//from  ww w . j  av  a 2s  . co m
    for (int i = 0; i < nodes.getLength(); i++) {
        Node node = nodes.item(i);
        Node copyNode = newXmlDocument.importNode(node, true);
        root.appendChild(copyNode);
    }
    printXmlDocument(newXmlDocument);
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    DocumentBuilderFactory Factory = DocumentBuilderFactory.newInstance();
    DocumentBuilder builder = Factory.newDocumentBuilder();
    Document doc = builder.parse("myxml.xml");
    XPathFactory factory = XPathFactory.newInstance();
    XPath xpath = factory.newXPath();

    XPathExpression expr = xpath.compile("//" + "item1" + "/*");
    Object result = expr.evaluate(doc, XPathConstants.NODESET);
    NodeList nodes = (NodeList) result;
    System.out.println(nodes.getLength());
    for (int i = 0; i < nodes.getLength(); i++) {
        Element el = (Element) nodes.item(i);
        System.out.println("tag: " + el.getNodeName());
        if (el.getFirstChild().getNodeType() == Node.TEXT_NODE)
            System.out.println("inner value:" + el.getFirstChild().getNodeValue());

        NodeList children = el.getChildNodes();
        for (int k = 0; k < children.getLength(); k++) {
            Node child = children.item(k);
            if (child.getNodeType() != Node.TEXT_NODE) {
                System.out.println("child tag: " + child.getNodeName());
                if (child.getFirstChild().getNodeType() == Node.TEXT_NODE)
                    System.out.println("inner child value:" + child.getFirstChild().getNodeValue());
            }/* ww w  .  j  av  a 2 s  .  c  o  m*/
        }
    }
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    DocumentBuilderFactory docFactory = DocumentBuilderFactory.newInstance();
    docFactory.setNamespaceAware(true);/*from www. ja  va 2  s  .co m*/
    DocumentBuilder builder;
    builder = docFactory.newDocumentBuilder();
    Document doc = builder.parse(CFG_FILE);
    XPathExpression expr = XPathFactory.newInstance().newXPath().compile(XPATH_FOR_PRM_MaxThread);
    Object result = expr.evaluate(doc, XPathConstants.NUMBER);
    if (result instanceof Double) {
        System.out.println(((Double) result).intValue());
    }

}

From source file:Main.java

public static void main(String[] args) throws Exception {
    DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
    Document document = dbf.newDocumentBuilder().parse(new File("input.xml"));

    XPathFactory xpf = XPathFactory.newInstance();
    XPath xpath = xpf.newXPath();
    XPathExpression expression = xpath.compile("//data/user/username[text()='simple']");
    Node b13Node = (Node) expression.evaluate(document, XPathConstants.NODE);
    b13Node = b13Node.getParentNode();
    b13Node.getParentNode().removeChild(b13Node);

    TransformerFactory tf = TransformerFactory.newInstance();
    Transformer t = tf.newTransformer();
    t.transform(new DOMSource(document), new StreamResult(System.out));
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    XPathFactory xPathfactory = XPathFactory.newInstance();
    XPath xpath = xPathfactory.newXPath();

    String xml1 = "<xml><product><product_id>2</product_id></product><car><product_id>12345678</product_id></car></xml>";
    String xml2 = "<xml><product><product_id>2</product_id></product><car><car_type id_1=\"2\" id_2=\"32\">55555</car_type></car></xml>";

    Document doc1 = stringToDom(xml1);
    Document doc2 = stringToDom(xml2);

    XPathExpression expr1 = xpath.compile("//car/product_id/text()");
    String carId = (String) expr1.evaluate(doc1, XPathConstants.STRING);

    XPathExpression expr2 = xpath.compile("//car/car_type/text()");
    String carType = (String) expr2.evaluate(doc2, XPathConstants.STRING);

    System.out.println("carId: " + carId);
    System.out.println("carType: " + carType);

}

From source file:Main.java

public static void main(String[] args) throws Exception {
    DocumentBuilder db = DocumentBuilderFactory.newInstance().newDocumentBuilder();
    Document doc = db.parse(new InputSource(new StringReader("<root>\r\n" + //
            "<Users>\r\n" + //
            "   <App id=\"test\">\r\n" + //
            "      <Username>ADMIN</Username>\r\n" + //
            "      <Password>ADMIN</Password>\r\n" + //
            "   </App>\r\n" + //
            "</Users>\r\n" + //
            "<Users>\r\n" + //
            "   <App id=\"test2\">\r\n" + //
            "      <Username>ADMIN2</Username>\r\n" + //
            "      <Password>ADMIN2</Password>\r\n" + //
            "   </App>\r\n" + //
            "</Users>\r\n" + //
            "</root>")));
    String inputId = "test2";
    String xpathStr = "//Users/App[@id='" + inputId + "']";
    // retrieve elements and change their content
    XPath xpath = XPathFactory.newInstance().newXPath();
    XPathExpression expr = xpath.compile(xpathStr + "/Username");
    Node username = (Node) expr.evaluate(doc, XPathConstants.NODE);
    username.setTextContent("test-username");
    expr = xpath.compile(xpathStr + "/Password");
    Node password = (Node) expr.evaluate(doc, XPathConstants.NODE);
    password.setTextContent("test-password");
    // output the document
    Transformer transformer = TransformerFactory.newInstance().newTransformer();
    StringWriter writer = new StringWriter();
    transformer.transform(new DOMSource(doc), new StreamResult(writer));
    System.out.println(writer.toString());

}

From source file:Main.java

public static void main(final String[] args) throws Exception {
    DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
    factory.setNamespaceAware(true);// www . ja v a  2 s  . co  m
    DocumentBuilder builder = factory.newDocumentBuilder();

    Document doc = builder.parse(new ByteArrayInputStream(( //
    "<?xml version=\"1.0\"?>" + //
            "<people>" + //
            "<person><name>First Person Name</name></person>" + //
            "<person><name>Second Person Name</name></person>" + //
            "</people>" //
    ).getBytes()));

    String fragment = "<name>Changed Name</name>";
    Document fragmentDoc = builder.parse(new ByteArrayInputStream(fragment.getBytes()));

    Node injectedNode = doc.adoptNode(fragmentDoc.getFirstChild());

    XPath xPath = XPathFactory.newInstance().newXPath();
    XPathExpression expr = xPath.compile("//people/person[2]/name");
    Element nodeFound = (Element) expr.evaluate(doc, XPathConstants.NODE);

    Node parentNode = nodeFound.getParentNode();
    parentNode.removeChild(nodeFound);
    parentNode.appendChild(injectedNode);

    DOMSource domSource = new DOMSource(doc);
    Transformer transformer = TransformerFactory.newInstance().newTransformer();
    StreamResult result = new StreamResult(new StringWriter());
    transformer.transform(domSource, result);
    System.out.println(result.getWriter().toString());
}