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 void removeWhitespaceNodes(Element e) {
    NodeList children = e.getChildNodes();
    for (int i = children.getLength() - 1; i >= 0; i--) {
        Node child = children.item(i);
        if (child instanceof Text && ((Text) child).getData().trim().length() == 0) {
            e.removeChild(child);/*from  www  .  ja va 2s  .co m*/
        } else if (child instanceof Element) {
            removeWhitespaceNodes((Element) child);
        }
    }
}

From source file:Main.java

public static Element getFirstChildElementIgnoreCase(Element elm, String name) {
    if (elm == null)
        return null;

    NodeList nl = elm.getChildNodes();
    for (int c = 0; c < nl.getLength(); c++) {
        Node node = nl.item(c);/*from  w ww .j  a v a 2 s  .  c  om*/
        if (node.getNodeType() == Node.ELEMENT_NODE
                && (name == null || node.getNodeName().equalsIgnoreCase(name)))
            return (Element) node;
    }

    return null;
}

From source file:Main.java

/**
 * Get Element by according tag/*from w w w  .ja v  a  2s .  c om*/
 * Only one such element should exist
 *
 * @param document document to search
 * @param tag tag to look for in document
 * @return corresponding element
 */
public static Element getSingleAppearingElementByTag(Document document, String tag) {
    NodeList elementList = document.getElementsByTagName(tag);
    if (elementList.getLength() != 1)
        return null;

    Node nNode = elementList.item(0);
    if (nNode.getNodeType() == Node.ELEMENT_NODE) {
        return (Element) nNode;
    }
    return null;
}

From source file:Main.java

public static List<Node> getDescendents(Node node, String nodeName) throws IOException {
    List<Node> childList = new ArrayList<Node>();
    NodeList children = node.getChildNodes();
    for (int i = 0; i < children.getLength(); i++) {
        Node child = children.item(i);
        if (child.getNodeName().equals(nodeName)) {
            childList.add(child);/*from   w  w w.  j  a  v a2s.c om*/
        }
    }
    return childList;
}

From source file:Main.java

public static Element readFirstChild(Node parentNode, String nodeName) {
    if (parentNode != null) {
        NodeList children = parentNode.getChildNodes();
        for (int i = 0; i < children.getLength(); i++) {
            if (children.item(i).getNodeName().equals(nodeName))
                return (Element) children.item(i);
        }//from   w  w w.  j a v  a2s  . co  m
    }
    return null;
}

From source file:Main.java

public static String getTextContent(Node node) {
    StringBuffer buffer = new StringBuffer();
    NodeList childList = node.getChildNodes();
    for (int i = 0; i < childList.getLength(); i++) {
        Node child = childList.item(i);
        if (child.getNodeType() != Node.TEXT_NODE)
            continue; // skip non-text nodes
        buffer.append(child.getNodeValue());
    }/*from   w  w  w .  j a  v  a  2s.co  m*/
    return buffer.toString();
}

From source file:Main.java

public static Element getFirstChild(Element tag, String childTagName) {
    NodeList nodes = tag.getElementsByTagName(childTagName);
    if (nodes == null || nodes.getLength() == 0) {
        return null;
    }/*from   w w w .  j a v  a2s  . c  o m*/

    return (Element) nodes.item(0);
}

From source file:Main.java

private static void findNodesNamed(Node node, String lookForName, Collection<Node> ret) {
    if (node.getNodeName().equals(lookForName)) {
        ret.add(node);//from w ww  .j  a v  a  2  s . c om
    } else {
        NodeList list = node.getChildNodes();
        for (int i = 0; i < list.getLength(); ++i) {
            findNodesNamed(list.item(i), lookForName, ret);
        }
    }
}

From source file:Main.java

public static Node selectNode(Node node, String tag) {
    NodeList nodes = node.getChildNodes();
    for (int i = 0; i < nodes.getLength(); i++) {
        Node n = nodes.item(i);/*from   w ww.  j  a  v  a 2s.co  m*/
        if (n instanceof Element && ((Element) n).getTagName().equals(tag)) {
            return n;
        }
    }
    return null;
}

From source file:Main.java

public static Element find(Element element, String name) {
    NodeList children = element.getChildNodes();
    for (int i = 0; i < children.getLength(); i++) {
        Node child = children.item(i);
        if ((child instanceof Element) && child.getNodeName().equals(name)) {
            return (Element) child;
        }/* ww w.j a v  a2  s .c o m*/
    }
    return null;
}