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 getFirstElementByTagName(Element parentElement, String tagName) {
    NodeList list = parentElement.getElementsByTagName(tagName);
    if (list.getLength() == 0)
        return null;
    else// ww w  .j a  v  a2 s .co m
        return (Element) list.item(0);
}

From source file:Main.java

public static String getFirstElementAttr(Element parent, String tag, String attr) {
    NodeList nl = parent.getElementsByTagName(tag);
    if (nl.getLength() > 0) {
        return ((Element) nl.item(0)).getAttribute(attr);
    }//from   ww  w. j  av a 2 s  .c o m
    return null;
}

From source file:Main.java

public static Element getFirstChildElement(Element parent, String childName) {
    if (parent.getElementsByTagName(childName).getLength() > 0) {
        return (Element) parent.getElementsByTagName(childName).item(0);
    }/*  w w w. ja va2 s  .  c  o  m*/
    return null;
}

From source file:Main.java

public static Node getTag(Element root, String tagName) {
    NodeList list = root.getElementsByTagName(tagName);
    for (int loop = 0; loop < list.getLength(); loop++) {
        Node node = list.item(loop);
        System.out.println("nodeName : " + node.getNodeName() + ":::::" + node.getNodeType());
        if (node.getNodeName().equals(tagName)) {
            return node;
        }//from   ww  w.  ja v a2s . c om
    }
    return null;
}

From source file:Main.java

/**
 * Return the child element whose name is as specified. 
 * <p>/*  w ww. j  a v  a  2 s .  c om*/
 * Note: it's up to the user to guarantee that there EXISTS and is only 
 * ONE child element.
 * @param parent
 * @param name
 * @return
 */
public static Element getUniqueElementByTagName(Element parent, String name) {
    Element elm = (Element) parent.getElementsByTagName(name).item(0);
    return elm;
}

From source file:Main.java

public static String getTag(org.w3c.dom.Element e, String index) {
    NodeList nList = e.getElementsByTagName(index);
    if (nList.getLength() != 0) {
        Node nNode = nList.item(0);
        return nNode.getTextContent();
    }//from w  ww. j av a 2s  .  c  om
    return null;
}

From source file:Main.java

public static Element getElementByTagName(Element element, String tagName) {
    NodeList nodeList = element.getElementsByTagName(tagName);
    if (nodeList.getLength() == 0) {
        return null;
    }/*from  w  w  w.  j  a  v a  2 s.  c  om*/
    Node node = nodeList.item(0);
    return (Element) node;
}

From source file:Main.java

/**
 * get the value of an Element in the Xml Document.
 * finds the first occurance of the element and retrieves its value.
 * @param root the root Element./*from  ww  w  .j a v a2  s .  co m*/
 * @param elemName the name of the element to search for.
 * @return String the element value or null if not found.
 */
public static String getElementValue(Element root, String elemName) {
    NodeList nl = root.getElementsByTagName(elemName);
    if (null == nl) {
        return (null);
    }
    Node n = nl.item(0);
    return (n.getFirstChild().getNodeValue().trim());
}

From source file:Main.java

public static List<Element> getChildElements(Element elem, String name) {
    NodeList nodes = elem.getElementsByTagName(name);
    List<Element> elements = new ArrayList<Element>(nodes.getLength());
    for (int i = 0; i < nodes.getLength(); i++) {
        Node node = nodes.item(i);
        if (node.getNodeType() == Node.ELEMENT_NODE && node.getNodeName().equals(name)) {
            elements.add((Element) node);
        }/*from   ww  w . j ava  2 s.c o  m*/
    }
    return elements;
}

From source file:Main.java

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