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

public static Element nthElement(Element parent, String elementName, int index) {
    NodeList nds = parent.getElementsByTagName(elementName);
    if (nds.getLength() < index)
        throw new NoSuchElementException();
    Element node = (Element) nds.item(index - 1);
    return node;/*from w w w .  j a  va2s. co  m*/
}

From source file:Main.java

public static String getChildText(Element parent, String childName) {
    NodeList list = parent.getElementsByTagName(childName);
    if (list.getLength() > 1) {
        throw new IllegalStateException("Multiple child elements with name " + childName);
    } else if (list.getLength() == 0) {
        return null;
    }//from   w  ww. j  av a 2s .c o m
    Element child = (Element) list.item(0);
    return getText(child);
}

From source file:Main.java

public static Element getChildWithAttribute(Element parent, String attrName) {
    NodeList childNodes = parent.getChildNodes();
    for (int i = 0; i < childNodes.getLength(); i++) {
        Node node = childNodes.item(i);
        if (node instanceof Element) {
            Element element = (Element) node;
            if (!"".equals(element.getAttribute(attrName))) {
                return element;
            }//from ww w .  j a va2s.  c o  m
        }
    }
    return null;
}

From source file:Main.java

static private Node getNode(Document doc, String nodeName, String textValue) {
    NodeList nodelist = doc.getElementsByTagName(nodeName);
    for (int i = 0; i < nodelist.getLength(); i++) {
        if (nodelist.item(i).getTextContent().equals(textValue)) {
            return nodelist.item(i);
        }/*from  w  w w .j a va 2 s. com*/
    }
    return null;
}

From source file:Main.java

public static Element findChildElement(Element parent, String name) {
    Element result = null;/*w  w  w . j  ava2  s  .  c  om*/
    NodeList nodes = parent.getChildNodes();

    for (int i = 0; i < nodes.getLength(); i++) {
        Node node = nodes.item(i);

        if (node.getNodeName().equals(name)) {
            result = (Element) node;
            break;
        }
    }

    return result;
}

From source file:Main.java

public static Element getChildWithAttributeValue(Element parent, String attrName, String attrValue) {
    NodeList childNodes = parent.getChildNodes();
    for (int i = 0; i < childNodes.getLength(); i++) {
        Node node = childNodes.item(i);
        if (node instanceof Element) {
            Element element = (Element) node;
            if (attrValue.equals(element.getAttribute(attrName))) {
                return element;
            }//  w w w .  j a  v  a  2s. c  o  m
        }
    }
    return null;
}

From source file:Main.java

public static void removeAllAttributes(Node node, String attrName) {

    // check if this node contains the attribute and remove it
    NamedNodeMap attrs = node.getAttributes();
    if (attrs != null && attrs.getNamedItem(attrName) != null) {
        attrs.removeNamedItem(attrName);
    }/*from   w  w w.  j av  a  2s .  c  om*/

    // process recursively all children
    NodeList list = node.getChildNodes();
    for (int i = 0; i < list.getLength(); i++) {
        // Get child node
        Node childNode = list.item(i);

        // Visit child node
        removeAllAttributes(childNode, attrName);
    }
}

From source file:Main.java

/**
 *  Returns the first child element found with the specified tag name
 *  @param node The node to search/*www . ja  va  2 s.com*/
 *  @param element The element tag name to search for
 *  @return The matching element Node
 */
public synchronized static Node getFirstElementWithTagName(Node node, String element) {
    if (node != null && element != null) {
        NodeList nl = node.getChildNodes();

        for (int i = 0; i < nl.getLength(); i++) {
            Node n = nl.item(i);

            if (n.getNodeType() == Node.ELEMENT_NODE && n.getNodeName().equals(element))
                return n;
        }
    }

    return null;
}

From source file:Main.java

public static Element get_child_with_attr(Node parent, String child_name, String attr_name, String attr_value) {
    NodeList children = parent.getChildNodes();
    for (int i = 0; i < children.getLength(); ++i) {
        Node child = children.item(i);
        if (child.getNodeName().equals(child_name)) {
            if (child instanceof Element) {
                Element e = (Element) child;
                if (e.getAttribute(attr_name).equals(attr_value))
                    return e;
            }//from  ww w . ja  v a 2  s . c  o  m
        }
    }
    return null;
}

From source file:Main.java

/** Helper method - Determines if a <I>Node</I> has any non-<I>CharacterData</I> nodes.
This call is stricter than the <CODE>Node.hasChildNodes</CODE> call.
 *///from  w  ww . j av  a 2 s . com
public static boolean hasNonCharacterChildren(Element pElement) {
    // Do the quick test.
    if (!pElement.hasChildNodes())
        return false;

    NodeList pNodeList = pElement.getChildNodes();
    int nLength = pNodeList.getLength();

    // Find a non-character data node.
    for (int i = 0; i < nLength; i++)
        if (!(pNodeList.item(i) instanceof CharacterData))
            return true;

    return false;
}