Example usage for javax.xml.xpath XPath compile

List of usage examples for javax.xml.xpath XPath compile

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Introduction

In this page you can find the example usage for javax.xml.xpath XPath compile.

Prototype

public XPathExpression compile(String expression) throws XPathExpressionException;

Source Link

Document

Compile an XPath expression for later evaluation.

Usage

From source file:Main.java

public static void main(String[] args) throws Exception {
    DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
    Document doc = factory.newDocumentBuilder()
            .parse("http://stackoverflow.com/feeds/tag?tagnames=java&sort=newest");
    Element root = doc.getDocumentElement();
    XPath xPath = XPathFactory.newInstance().newXPath();
    XPathExpression expression = xPath.compile("//entry");
    NodeList nl = (NodeList) expression.evaluate(root, XPathConstants.NODESET);
    System.out.println("Found " + nl.getLength() + " items...");
    for (int index = 0; index < nl.getLength(); index++) {
        Node node = nl.item(index);
        expression = xPath.compile("title");
        Node child = (Node) expression.evaluate(node, XPathConstants.NODE);
        System.out.println(child.getTextContent());
    }/*w ww.ja  va  2  s. c o  m*/
}

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());
            }/*from   w  w w. j  a  v  a2s  .com*/
        }
    }
}

From source file:Main.java

public static void main(String[] args) throws Exception {

    String xml = "<metadata><codes class = 'class1'>" + "<code code='ABC'>" + "<detail x='blah blah'/>"
            + "</code>" + "</codes>" + "<codes class = 'class2'>" + "<code code = '123'>"
            + "<detail x='blah blah'/></code></codes></metadata>";

    DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
    DocumentBuilder db = dbf.newDocumentBuilder();
    Document doc = db.parse(new ByteArrayInputStream(xml.getBytes()));

    XPath xPath = XPathFactory.newInstance().newXPath();
    XPathExpression expr = xPath.compile("//codes/code[@code ='ABC']");
    Object result = expr.evaluate(doc, XPathConstants.NODESET);

    NodeList nodes = (NodeList) result;
    System.out.println(nodes.getLength() > 0 ? "Yes" : "No");
    for (int i = 0; i < nodes.getLength(); i++) {
        System.out.println("nodes: " + nodes.item(i).getNodeValue());
    }/*from  www.jav  a2  s  .  c om*/
}

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());
    }// ww  w. ja  v a  2s.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  w  w  w . j  a  va 2  s.  c  om*/
    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(new File("Table.xml"));

    XPathFactory xFactory = XPathFactory.newInstance();
    XPath path = xFactory.newXPath();
    XPathExpression exp = path.compile("/tables/table");
    NodeList nlTables = (NodeList) exp.evaluate(doc, XPathConstants.NODESET);
    for (int tblIndex = 0; tblIndex < nlTables.getLength(); tblIndex++) {
        Node table = nlTables.item(tblIndex);
        Node nAtt = table.getAttributes().getNamedItem("title");
        System.out.println(nAtt.getTextContent());
        exp = path.compile("headings/heading");
        NodeList nlHeaders = (NodeList) exp.evaluate(table, XPathConstants.NODESET);
        Set<String> headers = new HashSet<String>(25);
        for (int index = 0; index < nlHeaders.getLength(); index++) {
            headers.add(nlHeaders.item(index).getTextContent().trim());
        }//from w w w . ja  v  a2s .c  o  m
        for (String header : headers) {
            System.out.println(header);
        }
        exp = path.compile("tablebody/tablerow");
        NodeList nlRows = (NodeList) exp.evaluate(table, XPathConstants.NODESET);
        for (int index = 0; index < nlRows.getLength(); index++) {
            Node rowNode = nlRows.item(index);
            exp = path.compile("tablecell/item");
            NodeList nlValues = (NodeList) exp.evaluate(rowNode, XPathConstants.NODESET);
            List<String> values = new ArrayList<String>(25);
            for (int valueIndex = 0; valueIndex < nlValues.getLength(); valueIndex++) {
                values.add(nlValues.item(valueIndex).getTextContent().trim());
            }
            for (String value : values) {
                System.out.println(value);
            }
        }
    }
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    XPathFactory xpf = XPathFactory.newInstance();
    XPath xp = xpf.newXPath();
    xp.setNamespaceContext(new MyNamespaceContext());
    XPathExpression xpe = xp.compile("ns:feed/ns:entry");
    FileInputStream xmlStream = new FileInputStream("input.xml");
    InputSource xmlInput = new InputSource(xmlStream);
    Element result = (Element) xpe.evaluate(xmlInput, XPathConstants.NODE);
    System.out.println(result);/*from  ww  w  .  j av a  2 s . co  m*/
}

From source file:Main.java

public static void main(final String[] args) throws Exception {
    DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
    factory.setNamespaceAware(true);/*from  www.j a v a 2 s  .c o  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());
}

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:MainClass.java

public static void main(String[] args) throws Exception {
    SimpleDateFormat xmlDateFormat = new SimpleDateFormat("MM.dd.yy");

    MapVariableResolver resolver = new MapVariableResolver();
    DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
    DocumentBuilder builder = dbf.newDocumentBuilder();
    Document document = builder.parse(new File("t.xml"));

    XPathFactory factory = XPathFactory.newInstance();
    XPath xPath = factory.newXPath();
    xPath.setXPathVariableResolver(resolver);
    XPathExpression expression = xPath.compile("/schedule/show[@date=$date]/guest");

    String formattedDate = xmlDateFormat.format(new Date(2006, 5, 14));
    resolver.addVariable(null, "date", formattedDate);
    Element guest = (Element) expression.evaluate(document, XPathConstants.NODE);

    System.out.println(guest.getElementsByTagName("name").item(0).getTextContent());
}