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

/**
 * This method return role name from xml file.
 * @param element String- privilege Element
 * @param elementName -Element name for which value has to be return
 * @return String Role name/* w w w.ja v  a 2s .co  m*/
 */
public static String getElementValue(Element element, String elementName) {
    String roleName = "";
    NodeList elementList = element.getElementsByTagName(elementName);
    Element ele = (Element) elementList.item(0);
    NodeList valueNodeList = ele.getChildNodes();
    Node node = ((Node) valueNodeList.item(0));
    if (node != null) {
        roleName = node.getNodeValue();
    }
    return roleName;
}

From source file:Main.java

public static Element getChildElement(Element el, String tagName) {
    if (el == null)
        return null;
    NodeList list = el.getElementsByTagName(tagName);
    if (list != null && list.getLength() > 0) {
        return (Element) list.item(0);
    }/*  w  ww  .  j  a  va  2s  .c  o  m*/
    return null;
}

From source file:Main.java

/**
 * Return list of content Strings of all child elements with given tag name.
 * @param elem/* w w w .j a v  a 2s .c  o m*/
 * @param childTagName
 * @return List 
 */
public static List getChildTextList(Element elem, String childTagName) {
    NodeList nodeList = elem.getElementsByTagName(childTagName);
    int len = nodeList.getLength();
    if (len == 0) {
        return Collections.EMPTY_LIST;
    }

    List list = new ArrayList(len);
    for (int i = 0; i < len; i++) {
        list.add(getElementText((Element) nodeList.item(i)));
    }
    return list;

}

From source file:Main.java

private static String getValue(Element ele, String tagName) {
    String value = null;/*from  ww w  .  j a  va 2  s.co  m*/
    NodeList nl = ele.getElementsByTagName(tagName);
    if (nl != null && nl.getLength() > 0) {
        Element el = (Element) nl.item(0);
        value = el.getFirstChild().getNodeValue();
    }

    return value;
}

From source file:Main.java

public static Element getElement(Element el, String tagName, int index) {
    NodeList list = el.getElementsByTagName(tagName);
    return (Element) list.item(index);
}

From source file:Main.java

/**
 * Gets XML elements//  w w  w.  ja va 2s  .com
 * 
 * @param elementTag
 * @param fromElement
 * @return
 */
public static List getElements(String elementTag, Element fromElement) {
    List elements = new ArrayList();
    NodeList nodeList = fromElement.getElementsByTagName(elementTag);
    for (int i = 0; i < nodeList.getLength(); i++) {
        Node node = nodeList.item(i);
        if (node.getNodeType() == Node.ELEMENT_NODE) {
            elements.add((Element) node);
        }
    }
    return elements;
}

From source file:Main.java

/**
 * @param elem//from  ww  w . j a  v a2s.  co m
 * @param childTag
 * @return
 */
public static Element getFirstChild(Element elem, String childTag) {
    if (elem.hasChildNodes()) {
        NodeList list = elem.getElementsByTagName(childTag);
        int count = list.getLength();

        for (int i = 0; i < count; i++) {
            Node node = list.item(i);
            if (node.getParentNode() != elem)
                continue;

            if (node.getNodeType() == Node.ELEMENT_NODE) {
                return (Element) node;
            }
        }
    }

    return null;
}

From source file:Main.java

public static Element element(Element element, String name) {
    Element childElement = null;/*  w  w  w  .  j a v a  2s .  co m*/
    NodeList nodeList = element.getElementsByTagName(name);
    if (nodeList.getLength() > 0) {
        childElement = (Element) nodeList.item(0);
    }
    return childElement;
}

From source file:Main.java

/**
 * I take a xml element and the tag name, look for the tag and get
 * the text content//  ww  w  .j  a  v a 2s  . c  om
 * i.e for <employee><name>John</name></employee> xml snippet if
 * the Element points to employee node and tagName is 'name' I will return John
 */
public static String getTextValue(Element ele, String tagName) {

    // Look for elements first
    NodeList nl = ele.getElementsByTagName(tagName);
    if (nl != null && nl.getLength() > 0) {
        Element el = (Element) nl.item(0);
        return el.getFirstChild().getNodeValue();
    }

    // If there are no elements look for an attribute
    return ele.getAttribute(tagName);
}

From source file:Main.java

public static List<Element> getElements(Element parent, String tagName) {
    List<Element> elements = new ArrayList<Element>();
    NodeList nodes = parent.getElementsByTagName(tagName);
    for (int i = 0; i < nodes.getLength(); i++) {
        Node node = nodes.item(i);
        if (node instanceof Element) {
            elements.add(Element.class.cast(node));
        }/*from   w  w w  . ja  v a  2 s.c  o  m*/
    }
    return elements;
}