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 getElement(Element parentElement, String nodeName) {
    NodeList list = parentElement.getElementsByTagName(nodeName);
    if (list == null || list.getLength() == 0) {
        return null;
    }//from   w ww .  j a v a  2s .  c o  m
    return (Element) list.item(0);
}

From source file:Main.java

/**
 * @return the child element, throws exception if the parent does not
 *          have exactly one sub element with name
 *//*w  w  w  . j a v a2  s. c om*/
public static Element getSingleSubElement(Element parentElement, String name) {
    NodeList nodes = parentElement.getElementsByTagName(name);
    if (nodes.getLength() != 1) {
        throw new IllegalArgumentException("Expected the element " + parentElement.getNodeName()
                + " to have one child called " + name + " but found " + nodes.getLength());
    }
    return (Element) nodes.item(0);
}

From source file:Main.java

public static int getSize(Element el, String tagName) {
    NodeList list = el.getElementsByTagName(tagName);
    return list.getLength();
}

From source file:Main.java

public static NodeList getNodeList(Node pNode, String tagName) {
    Element nodeElement = (Element) pNode;
    NodeList theNodeList = nodeElement.getElementsByTagName(tagName);
    return theNodeList;
}

From source file:Main.java

public static Element getElementByTagName(Element element, String name) {
    NodeList nodes = element.getElementsByTagName(name);
    if (nodes.getLength() == 0)
        return null;
    else/*w  w  w.  ja va 2s. com*/
        return (Element) nodes.item(0);
}

From source file:Main.java

public static String getElementValueByTagName(Element root, String tagName) {
    NodeList nodes = root.getElementsByTagName(tagName);
    if (nodes != null) {
        Node node = nodes.item(0).getFirstChild();
        if (node != null) {
            return node.getNodeValue();
        } else {//from  w  w  w.j  a  va  2 s  .c  o m
            return null;
        }
    } else {
        return null;
    }
}

From source file:Main.java

public static Element getChildren(Element element, String childName) {
    NodeList ndLs = element.getElementsByTagName(childName);
    return (Element) ndLs.item(0);
}

From source file:Main.java

public static Element getFirstNode(Element elem, String name) {
    NodeList nl = elem.getElementsByTagName(name);
    if (nl.getLength() > 0)
        return (Element) nl.item(0);
    return null;//from w ww  .  jav  a  2  s  . co  m
}

From source file:Main.java

public static boolean elementExists(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 true;
    }/*ww  w. j  a  v a2  s.  c  om*/
    return false;
}

From source file:Main.java

public static String getChildTagValue(Node node, String tag) {
    Element element = (Element) node;
    NodeList childrenWithTag = element.getElementsByTagName(tag).item(0).getChildNodes();

    Node valueNode = (Node) childrenWithTag.item(0);

    return valueNode.getNodeValue();
}