Example usage for org.w3c.dom NodeList getLength

Introduction

In this page you can find the example usage for org.w3c.dom NodeList getLength.

Prototype

public int getLength();

Source Link

Document

The number of nodes in the list.

Usage

From source file:Main.java

/**
 * get all child elements matching the given tag 
 * //  w w w  . jav a 2 s .  co  m
 * @param tag
 * @param searchIn
 * @return
 */
public static ArrayList<Element> getChildElementsByTag(String tag, Element searchIn) {
    ArrayList<Element> toReturn = new ArrayList<Element>();
    NodeList list = searchIn.getChildNodes();

    for (int i = 0; i < list.getLength(); i++) {
        Node n = list.item(i);
        if (n instanceof Element && ((Element) n).getTagName().equals(tag)) {
            toReturn.add((Element) n);
        }

    }
    return toReturn;
}

From source file:Main.java

public static Element getChildElement(Element elt, String name) {
    NodeList nodes = elt.getChildNodes();
    for (int i = 0; i < nodes.getLength(); i++) {
        Node node = nodes.item(i);
        if (node.getNodeType() == Node.ELEMENT_NODE)
            if (name.equals(node.getNodeName()))
                return (Element) node;
    }//  w  ww. j av a  2  s .c o  m
    return null;
}

From source file:Main.java

/**
 * Gets the first element with the given tag name in the immediate child elements.
 * /*from  ww w  .j av a2 s . c  o m*/
 * @param element
 * @param tagName
 * @return
 */
public static Element getFirstChildElementByTagName(Node element, String tagName) {
    NodeList list = element.getChildNodes();
    int size = list.getLength();
    if (size > 0) {
        for (int i = 0; i < size; i++) {
            Node node = list.item(i);
            if (node instanceof Element) {
                Element e = (Element) node;
                if (e.getTagName().equals(tagName)) {
                    return e;
                }
            }
        }
    }
    return null;
}

From source file:Main.java

/**
 * get single element by tag name/*from w w w  . j a  v a2  s  . c o  m*/
 * @param element
 * @param tag
 * @return
 */
public static List<Element> getElementsByTagName(Element element, String tag) {
    List<Element> elems = new ArrayList<Element>();
    NodeList list = element.getChildNodes();
    for (int i = 0; i < list.getLength(); i++) {
        Node node = list.item(i);
        if (node instanceof Element) {
            Element e = (Element) node;
            if (e.getTagName().equals(tag)) {
                elems.add(e);
            }
        }
    }
    return elems;
}

From source file:Main.java

/***
 * Remove all children nodes/*from   ww w. j  a v a 2  s  .  c  om*/
 * 
 * @param node
 *            node to remove children from
 * 
 */
public static void removeAllChilden(final Node node) {
    if (node != null) {
        final NodeList childrens = node.getChildNodes();

        for (int i = 0; i < childrens.getLength(); i++) {
            node.removeChild(childrens.item(i));
        }
    }
}

From source file:Main.java

public static Element getChildElement(String tagName, Element element) {
    NodeList nl = element.getChildNodes();
    for (int i = 0; i < nl.getLength(); i++) {
        Node n = nl.item(i);//from  ww  w  .  ja v  a 2  s .com
        if (n.getNodeType() == Node.ELEMENT_NODE && n.getNodeName().equals(tagName)) {
            return (Element) n;
        }
    }
    return null;
}

From source file:Main.java

public static Element getSingleOptionalChildElement(Element parent, Enum<?> child) {
    final String elName = getXmlName(child);
    final NodeList list = parent.getElementsByTagName(elName);
    if (list.getLength() == 1) {
        return (Element) list.item(0);
    }//from www  .  j  a  v a 2s .c om
    if (list.getLength() == 0) {
        return null;
    }
    throw new IllegalArgumentException("expected a single " + elName + " child element of XML element "
            + parent.getNodeName() + ", but found " + list.getLength());
}

From source file:Main.java

/**
 * Gets the first child element of a node.
 * @param parent the node//from ww w.ja va 2  s  . c  o  m
 * @return the first child element or null if there are no child elements
 */
private static Element getFirstChildElement(Node parent) {
    NodeList nodeList = parent.getChildNodes();
    for (int i = 0; i < nodeList.getLength(); i++) {
        Node node = nodeList.item(i);
        if (node instanceof Element) {
            return (Element) node;
        }
    }
    return null;
}

From source file:Main.java

public static List getChildren(Element parentEl, String name) {
    List children = new ArrayList();
    NodeList l = parentEl.getChildNodes();
    for (int i = 0; i < l.getLength(); i++) {
        Node n = l.item(i);/*w ww.  j a  v  a2  s  . com*/
        if (Node.ELEMENT_NODE == n.getNodeType() && name.equals(n.getNodeName())) {
            children.add((Element) n);
        }
    }
    return children;
}

From source file:Main.java

private static boolean hasElementWithAttribute(NodeList nodeList, String attributeName, String attributeValue) {
    for (int i = 0; i < nodeList.getLength(); i++) {
        if (attributeValue.equals(((Element) nodeList.item(i)).getAttribute(attributeName))) {
            return true;
        }/*from   w  w  w  .  j ava  2  s  . com*/
    }
    return false;
}