Example usage for org.w3c.dom Document getDocumentElement

Introduction

In this page you can find the example usage for org.w3c.dom Document getDocumentElement.

Prototype

public Element getDocumentElement();

Source Link

Document

This is a convenience attribute that allows direct access to the child node that is the document element of the document.

Usage

From source file:Main.java

/**
 * Returns root tagname/*from  ww w  .  j av a2  s.c om*/
 *
 * @param xml  The xml document to be searched.
 * @return String result.
 */
public static String getRootTagName(String xml) throws Exception {
    DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
    dbf.setNamespaceAware(true);
    DocumentBuilder builder = dbf.newDocumentBuilder();
    Document document = builder.parse(new InputSource(new StringReader(xml)));
    return document.getDocumentElement().getTagName();
}

From source file:Main.java

/**
 * Copies a document's content to another document (i.e. the root node is
 * adopted by the new document and inserted there). The new document should
 * be empty.//w w  w  . j a va  2 s.co  m
 *
 * @param oldDocument
 * @param newDocument
 *
 * @return the new containing document
 */
public static Document copyDocument(Document oldDocument, Document newDocument) {

    Node root = oldDocument.getDocumentElement();

    Node adoptedRoot = newDocument.adoptNode(root);

    newDocument.appendChild(adoptedRoot);

    return newDocument;
}

From source file:Main.java

/**
 * Given an XML string, return the textContent of all of the tags that match tagName as a list.
 * @param xmlStr//w  w w .  jav a2  s .  c o m
 * @param tagName
 * @method getValuesForNode
 * @static
 */
public static List<String> getValuesForNode(String xmlStr, String tagName) {

    List<String> values = new ArrayList<String>();
    try {

        DocumentBuilderFactory docBuilderFactory = DocumentBuilderFactory.newInstance();
        DocumentBuilder docBuilder = docBuilderFactory.newDocumentBuilder();

        InputStream is = new ByteArrayInputStream(xmlStr.getBytes("UTF-8"));

        Document doc = docBuilder.parse(is);

        doc.getDocumentElement().normalize();

        NodeList nodes = doc.getElementsByTagName(tagName);
        int nodeCount = nodes.getLength();

        for (int i = 0; i < nodeCount; i++) {
            Node node = nodes.item(i);
            values.add(node.getTextContent());
        }

    } catch (Exception e) {
        e.printStackTrace();
    }

    return values;

}

From source file:Main.java

public static String getNodeAttributeByName(String xmlFilePath, String nodeName, String attributeName) {
    String returnVal = "No value!";
    DocumentBuilderFactory domBuilderFactory = DocumentBuilderFactory.newInstance();
    try {/*from   w  ww.ja  va 2  s.  c  om*/

        DocumentBuilder domBuilder = domBuilderFactory.newDocumentBuilder();
        InputStream is = new FileInputStream(xmlFilePath);
        Document doc = domBuilder.parse(is);
        Element root = doc.getDocumentElement();
        NodeList nodes = root.getChildNodes();
        if (nodes != null) {
            for (int i = 0; i < nodes.getLength(); i++) {
                Node node = nodes.item(i);
                if (node.getNodeType() == Node.ELEMENT_NODE) {
                    String test = node.getNodeName();
                    if (test.equals(nodeName)) {
                        returnVal = node.getAttributes().getNamedItem(attributeName).getNodeValue();
                    }
                }
            }
        }
    } catch (Exception e) {
        e.printStackTrace();
    }

    return returnVal;
}

From source file:Main.java

public static Document parseXmlDocument(InputStream is, boolean namespaceAware)
        throws ParserConfigurationException, SAXException, IOException {
    DocumentBuilder docBuilder = buildDocumentBuilder(namespaceAware);
    Document doc = docBuilder.parse(is);

    // normalize text representation
    doc.getDocumentElement().normalize();

    return doc;/*www . ja  va 2 s .c  o  m*/
}

From source file:Main.java

public static Element newTemplate(String xml) throws Exception {
    Document doc = readXML(xml);
    return doc.getDocumentElement();
}

From source file:Main.java

/**
 * Create an root element with the specified name
 *
 * @param doc//from  w  w  w .  j  a v  a2 s. c o  m
 * @param rootTagName
 * @return
 */
public static Element createRootElement(Document doc, String rootTagName) {
    if (doc.getDocumentElement() == null) {
        Element root = doc.createElement(rootTagName);
        doc.appendChild(root);
        return root;
    }
    return doc.getDocumentElement();
}

From source file:Main.java

public static Document attributize(Document doc) throws ParserConfigurationException {
    Element root = doc.getDocumentElement();
    attributize(root);/*  ww w  .  j  a  v a  2  s . c om*/
    return doc;
}

From source file:Main.java

public static Element getFirstChild(Document paramDocument, String paramString) {
    Element localElement = paramDocument.getDocumentElement();
    return getFirstChild(localElement, paramString);
}

From source file:Main.java

public static Document readXMLFile(File file) {

    try {/*from w ww .j  a v a2 s .c  o  m*/
        DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();
        DocumentBuilder dBuilder = dbFactory.newDocumentBuilder();
        Document doc = dBuilder.parse(new FileInputStream(file));
        doc.getDocumentElement().normalize();
        return doc;
    } catch (Exception e) {
        throw new RuntimeException("Error occured while reading xmlfile");
    }
}