Example usage for org.w3c.dom Element getElementsByTagName

Introduction

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

Prototype

public NodeList getElementsByTagName(String name);

Source Link

Document

Returns a NodeList of all descendant Elements with a given tag name, in document order.

Usage

From source file:Main.java

public static Element getPropertyNode(Element properties, String name) {
    NodeList nodeList = properties.getElementsByTagName(PROPERTY_NODE);
    for (int i = 0; i < nodeList.getLength(); i++) {
        Element element = (Element) nodeList.item(i);
        if (name.equals(element.getAttributes().getNamedItem(NAME_ATTR).getNodeValue())) {
            return element;
        }//from  w w w. j  a  v a2s  . c om
    }
    return null;
}

From source file:Main.java

public static List<Element> getChildNodes(Element parent, String name) {
    NodeList list = parent.getElementsByTagName(name);
    List<Element> children = new ArrayList<Element>(list.getLength());
    for (int i = 0; i < list.getLength(); i++) {
        Node child = list.item(i);
        if (child.getNodeType() == 1)
            children.add((Element) child);
    }//from   w ww. ja  v a 2 s  .co m

    return children;
}

From source file:Main.java

public static boolean hasChildren(Element element, String childName) {
    NodeList ndLs = element.getElementsByTagName(childName);
    if (ndLs == null)
        return false;
    if (ndLs.getLength() > 0)
        return true;
    return false;
}

From source file:Main.java

/**
 * Retrieves the first element, within the supplied element that has the specified tagName.
 * @param ele Parent element to search through
 * @param tagName Element name to find/*w  w  w  .  j  a va2s. com*/
 * @return Element within the parent element that has the specfied name, or null.
 */
public static Element getDistinctElementByName(Element ele, String tagName) {
    NodeList nl = ele.getElementsByTagName(tagName);
    if (nl != null && nl.getLength() > 0) {
        return (Element) nl.item(0);
    }

    return null;
}

From source file:Main.java

public static final Boolean parameterExists(final Element e, final String name) {
    NodeList nl = e.getElementsByTagName(name);
    if (nl.getLength() > 0) {
        return true;
    } else {//from  w  w  w .ja  v a  2s  . c  o  m
        return false;
    }
}

From source file:Util.java

public static List<String> getTextValuesByTagName(Element element, String tagName) {
    NodeList nodeList = element.getElementsByTagName(tagName);
    ArrayList<String> list = new ArrayList<String>();
    for (int i = 0; i < nodeList.getLength(); i++) {
        list.add(getTextValue(nodeList.item(i)));
    }/*w ww . j av  a2s.co m*/
    return list;
}

From source file:Main.java

public static String getChildText(Element parent, String childName) {
    NodeList list = parent.getElementsByTagName(childName);
    if (list.getLength() > 1) {
        throw new IllegalStateException("Multiple child elements with name " + childName);
    } else if (list.getLength() == 0) {
        return null;
    }/*from w  ww. j  ava2  s . c  om*/
    Element child = (Element) list.item(0);
    return getText(child);
}

From source file:Main.java

public static Vector<String> extractList(Element elem, String name) {
    NodeList nl = elem.getElementsByTagName(name);
    Vector<String> values = new Vector<String>(nl.getLength());
    String retval = null;//www  .ja va  2s  .  c  o m
    for (int n = 0; n < nl.getLength(); n++) {
        Element element = (Element) nl.item(n);
        retval = getSimpleElementText(element);
        if (retval != null)
            values.addElement(retval);
    }
    return values;
}

From source file:Main.java

public static NodeList extractNodeListFromElement(Element config, String tag, boolean required) {
    NodeList node = config.getElementsByTagName(tag);
    return check1Most(node, tag, required);
}

From source file:Main.java

/**
 * Get a list of all child text Elements of given name directly
 * under a given {@code org.w3c.dom.Element}.
 *
 * @param elem the parent Element//from  w  w  w .  ja v  a2s .com
 * @param name the given name of searched child Elements
 * @return a List of values of those child text Elements
 */
public static List<String> getAllElementsByTagName(Element elem, String name) {
    NodeList nodeList = elem.getElementsByTagName(name);
    List<String> result = new ArrayList<String>();
    for (int i = 0; i < nodeList.getLength(); ++i) {
        NodeList children = nodeList.item(i).getChildNodes();
        if (children.getLength() == 0 || children.item(0).getNodeType() != Node.TEXT_NODE) {
            continue;
        }
        result.add(children.item(0).getNodeValue());
    }
    return result;
}