Example usage for org.w3c.dom Document getElementsByTagName

Introduction

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

Prototype

public NodeList getElementsByTagName(String tagname);

Source Link

Document

Returns a NodeList of all the Elements in document order with a given tag name and are contained in the document.

Usage

From source file:Main.java

public static void setValueByElementName(Document document, String name, String value) {
    if (document == null) {
        return;//from   w w  w. j a va 2  s .co  m
    }
    NodeList nodeList = document.getElementsByTagName(name);
    if (nodeList != null && nodeList.getLength() > 0) {
        for (int i = 0; i < nodeList.getLength(); i++) {
            Element element = (Element) nodeList.item(i);
            ((Text) element.getFirstChild()).setData(value);
        }
    }
}

From source file:Main.java

public static Node[] findNodesByTagName(Document document, String tagName) {
    ArrayList<Node> nodes = new ArrayList<Node>();

    NodeList foundNodes = document.getElementsByTagName(tagName);
    for (int i = 0; i < foundNodes.getLength(); i++)
        nodes.add(foundNodes.item(i));/*from w  w  w  .  j a  va2  s  . co m*/

    Node[] returnNodes = new Node[nodes.size()];
    return nodes.toArray(returnNodes);
}

From source file:Main.java

public static String getAttributeInXML(org.w3c.dom.Document doc, String tagName, String attributeName) {
    String output = "";
    org.w3c.dom.NodeList ontologyTypes = doc.getElementsByTagName(tagName);
    output = ((Element) ontologyTypes.item(0)).getAttribute(attributeName);

    return output;
}

From source file:Main.java

/**
 * Get the Value of a node that has an embedded text node as a child
 * @param doc the Document to search for the node name
 * @param nodeName the name of the node to get the value
 * @return the value of the text node child
 *//*from  w  w  w  .j  av  a  2 s  .c  om*/
public static String getNodeTextValue(Document doc, String nodeName) {
    String value = null;
    NodeList nodes = doc.getElementsByTagName(nodeName);
    if (nodes.getLength() > 0) {
        Node node = nodes.item(0);
        if (node.hasChildNodes()) {
            Node text = node.getFirstChild();
            value = text.getNodeValue();
        }
    }
    return replaceSpecialCharacters(value);
}

From source file:Main.java

/**
 * Returns an array of strings representing all values for provided
 * attribute prefixed by 2 levels of parents, all nodes (e.g.:
 * parenetNodeAtrValue.childNodeAtrValue.childNodeAtrValue)
 * @param xsdDoc/*www.  j a  va2  s . c  o  m*/
 * @param atrName
 * @return
 */
public static ArrayList<String> getAllValuesWithParentForAttribute(Document xsdDoc, String atrName) {
    try {
        NodeList allNodes = xsdDoc.getElementsByTagName("*");
        return getValuesWithParentForAttribute(atrName, allNodes);
    } catch (Exception e) {
        e.printStackTrace();
        return null;
    }
}

From source file:Main.java

/**
 * Searches below the supplied Node for a "list" tag and then retrieves the contents of the "value" tag(s) under that.
 * Note that if there is more than one "list" under the node then we will take the values from the first one only.
 * /*  w w w. j  a  va2 s  .c  o m*/
 * @param node
 *          acts as the root for the seach
 * 
 * @return list of Strings corresponding to the contents of the "value" tag(s)
 */
public static ArrayList getElementListValues(Node node) {
    ArrayList values = new ArrayList();

    // search for list tag
    Document doc = node.getOwnerDocument();
    NodeList list = doc.getElementsByTagName("list");

    if (list.getLength() == 0)
        return values;

    // search under that for value tag(s)
    doc = list.item(0).getOwnerDocument();
    NodeList vals = doc.getElementsByTagName("value");

    // for each one we get the text contents
    for (int i = 0; i < vals.getLength(); i++) {
        Node v = vals.item(i);
        NodeList text = v.getChildNodes();

        if (text == null) {
            values.add("");
            continue;
        }

        // there should be only text inside the value tag
        Node value = text.item(0);
        if (value == null)
            values.add("");
        else
            values.add(value.getNodeValue());
    }

    return values;
}

From source file:Main.java

public static boolean validProcess(String xml) {
    try {/*from   www.j  a  v  a2  s .  c o m*/
        Set<String> classifiers = new HashSet<String>();

        InputStream is = new ByteArrayInputStream(xml.getBytes());
        DocumentBuilderFactory docBuilderFactory = DocumentBuilderFactory.newInstance();
        DocumentBuilder docBuilder = docBuilderFactory.newDocumentBuilder();
        Document document = docBuilder.parse(is);

        // iterate over all operators
        NodeList nodes = document.getElementsByTagName("operator");
        for (int i = 0; i < nodes.getLength(); i++) {
            Element element = (Element) nodes.item(i);
            String className = element.getAttribute("class");

            if (classifiers.contains(className)) {
                return false;
            }
            classifiers.add(className);
        }
        return true;
    } catch (Exception e) {
        return false;
    }
}

From source file:Main.java

public static Object getClassFromXML() throws Exception {
    //create DOM object
    DocumentBuilderFactory docBuilderFactory = DocumentBuilderFactory.newInstance();
    DocumentBuilder docBuilder = docBuilderFactory.newDocumentBuilder();
    Document document = docBuilder.parse(new File("property.xml"));

    //get the node name and get the class name
    NodeList nodeList = document.getElementsByTagName("className");
    Node node = nodeList.item(0).getFirstChild();
    String className = node.getNodeValue();

    //return an object through the class name
    Class tempClass = Class.forName(className);
    Object object = tempClass.newInstance();
    return object;
}

From source file:Main.java

/**
 * Find an element/*from w  w  w  . j  av a  2 s.c  o m*/
 * @param doc XML document
 * @param tagName Tag name
 * @param props Properties corresponding to attributes in tag
 * @return Element or null if not found
 */
public static Element findElement(Document doc, String tagName, Properties props) {
    Element elmt = null;
    NodeList nlist = doc.getElementsByTagName(tagName);
    for (int i = 0; i < nlist.getLength() && elmt == null; i++) {
        Node node = nlist.item(i);
        if (node instanceof Element) {
            Element temp = (Element) node;
            boolean matches = true;
            for (Enumeration en = props.keys(); en.hasMoreElements() && matches;) {
                String name = (String) en.nextElement();
                String value = props.getProperty(name);
                String attValue = temp.getAttribute(name);
                if (attValue == null)
                    matches = false;
                else if (!value.equals(attValue))
                    matches = false;
            }
            if (matches)
                elmt = temp;
        }
    }
    return elmt;
}

From source file:Main.java

/**
 * //from w  w  w.j ava  2 s .co m
 * @param doc
 * @param strTagName
 * @return
 */
public static ArrayList<String> getArrayListFromNodes(Document doc, String strTagName) {

    ArrayList<String> alValues = new ArrayList<String>();

    NodeList nl = doc.getElementsByTagName(strTagName);

    // if there are tags
    if (nl != null) {

        // cycles on all of them
        for (int i = 0; i < nl.getLength(); i++) {

            // if it is a field Node
            if (nl.item(i).getNodeType() == 1) {

                // gets the i-th element
                Element e = (Element) nl.item(i);

                // if it has a value adds it to the AL
                if (e.getFirstChild() != null)
                    alValues.add(e.getFirstChild().getNodeValue());
            }
        }
    }

    return alValues;
}