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 int getNodeSizeFromXmlStr(String xmlStr, String nodeName) {
    int size = 0;
    xmlStr = xmlStr.trim();//ww  w.  j ava2  s  .co m
    Element element = getRootNodeFromXmlStr(xmlStr);
    size = element.getElementsByTagName(nodeName).getLength();
    return size;
}

From source file:Utils.java

public static String getElementStringValue(Document document, Element parent, String element) {
    NodeList nl = parent.getElementsByTagName(element);
    if (nl.getLength() == 0) {
        return "";
    }//from   w w  w.j  av a  2 s . co  m

    Node n = nl.item(0).getFirstChild();
    if (n == null) {
        return "";
    }

    return n.getNodeValue();
}

From source file:Main.java

/**
 * Restituisce il primo sottoelemeto di xmlRoot trovato con il nome
 * specificato//  w ww  .  j av  a  2  s.c  o  m
 * 
 * @param xmlRoot
 *            l'elemento in cui cercare (NOT null)
 * @param name
 *            il nome del sottoelemento da restituire
 * @return il primo sottoelemento trovato o null se non presente
 */
public static Element getSingleElement(Element xmlRoot, String name) {
    NodeList nodeList = xmlRoot.getElementsByTagName(name);
    Element element = null;
    if (nodeList != null && nodeList.getLength() > 0) {
        element = (Element) nodeList.item(0);
    }
    return element;
}

From source file:Main.java

public static Element getFirstElement(Element element, String elementName) throws IOException {
    NodeList list = element.getElementsByTagName(elementName);
    if (list.getLength() >= 1) {
        Element subElement = (Element) list.item(0);
        return subElement;
    } else {// w  w  w . j a  v  a 2  s  .co  m
        return null;
    }
}

From source file:Main.java

public static String GetElementText(Element parent, String node_name) {
    NodeList match = parent.getElementsByTagName(node_name);
    if (match.getLength() == 0)
        return null;
    Node m = match.item(0);//from   ww  w. j av a2 s.  co  m
    return getNodeText(m);
}

From source file:Main.java

/**
 * This method returns the child element with the particular name.
 * @param parentElement The parent element.
 * @param tagName The child element name.
 * @return The child element.//from   w w w .  j  av a  2 s  .c om
 */
public static Element getChildElement(Element parentElement, String tagName) {
    NodeList nodes = parentElement.getElementsByTagName(tagName);
    if (nodes != null && nodes.getLength() != 0) {
        return (Element) nodes.item(0);
    } else {
        return null;
    }
}

From source file:Main.java

public static String getTextValue(Element ele, String tagName) {
    String textVal = null;//  ww  w.  j  a va2 s .c om
    NodeList nl = ele.getElementsByTagName(tagName);
    if (nl != null && nl.getLength() > 0) {
        Element el = (Element) nl.item(0);
        if (el == null)
            return null;
        if (el.getFirstChild() == null)
            return null;
        textVal = el.getFirstChild().getNodeValue();
    }

    return textVal;
}

From source file:Main.java

public static List<Element> getElements(Element parent, String tagName) {
    NodeList nodes = parent.getElementsByTagName(tagName);
    ArrayList elements = new ArrayList();

    for (int i = 0; i < nodes.getLength(); ++i) {
        Node node = nodes.item(i);
        if (node instanceof Element) {
            elements.add((Element) node);
        }/*from www  . j a  va2 s . c  o m*/
    }

    return elements;
}

From source file:Main.java

/**
 * An Iterable for the Element's childs, with a particular name, of a node
 *
 * @param n the node get the children from
 * @param elementName the name of the child elements
 * @return An Iterable for the Element's children, with a particular name,
 * of a node/*from  w  w  w. j  a v a2s.c  om*/
 */
public static Iterable<Element> elements(Element n, String elementName) {
    NodeList subNodes = n.getElementsByTagName(elementName);
    int sz = subNodes.getLength();
    ArrayList<Element> elements = new ArrayList<>(sz);
    for (int idx = 0; idx < sz; idx++) {
        Node node = subNodes.item(idx);
        elements.add((Element) node);
    }
    return elements;
}

From source file:Main.java

/**
 * An Iterable for the Element's childs, with a particular name, of a node
 * //w  ww.  j a  v  a  2 s .  c  o m
 * @param n
 *            the node get the children from
 * @param elementName
 *            the name of the child elements
 * @return An Iterable for the Element's children, with a particular name, of a node
 */
public static Iterable<Element> elements(Element n, String elementName) {
    NodeList subNodes = n.getElementsByTagName(elementName);
    int sz = subNodes.getLength();
    ArrayList<Element> elements = new ArrayList<Element>(sz);
    for (int idx = 0; idx < sz; idx++) {
        Node node = subNodes.item(idx);
        elements.add((Element) node);
    }
    return elements;
}