Example usage for org.w3c.dom Element getChildNodes

Introduction

In this page you can find the example usage for org.w3c.dom Element getChildNodes.

Prototype

public NodeList getChildNodes();

Source Link

Document

A NodeList that contains all children of this node.

Usage

From source file:Main.java

/** Return first child with given name within given element. */
public static Element getFirst(Element parent, String name) {
    NodeList nl = parent.getChildNodes();
    for (int i = 0, l = nl.getLength(); i < l; i++) {
        Node curr = nl.item(i);/*from  w w w. j a va  2 s . c  o  m*/
        if (curr.getNodeType() == Element.ELEMENT_NODE && curr.getNodeName().equals(name))
            return (Element) curr;
    }

    return null;
}

From source file:Main.java

/**
 * Recursively removes all text nodes containing whitespace only from a document element. Also
 * trims leading and trailing whitespace from text nodes.
 * /* w w  w  .j a v a  2s .  c o m*/
 * @param e The root document element.
 */
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);
        else if (child instanceof Text)
            child.setTextContent(((Text) child).getData().trim());
        else if (child instanceof Element)
            removeWhitespaceNodes((Element) child);
    }
}

From source file:Main.java

public static void removeElement(Element parent, String tagName) {
    NodeList nl = parent.getChildNodes();
    for (int i = 0; i < nl.getLength(); i++) {
        Node nd = nl.item(i);// w w  w .j av a2 s. c  om
        if (nd.getNodeName().equals(tagName)) {
            parent.removeChild(nd);
        }
    }
}

From source file:Main.java

/**
 * Extracts the first CDATA child from the given {@code org.w3c.dom.Element}.
 *
 * @param elem the parent Element//from  ww  w. ja  v a 2  s.c  o  m
 * @return the String value of the CDATA section, or {@code null} if none
 *         found
 */
public static String getCdata(Element elem) {
    NodeList nodes = elem.getChildNodes();
    for (int i = 0; i < nodes.getLength(); i++) {
        Node node = nodes.item(i);
        if (node.getNodeType() == Node.CDATA_SECTION_NODE) {
            CharacterData cdataNode = (CharacterData) node;
            return cdataNode.getData();
        }
    }
    return null;
}

From source file:Main.java

public static void fixSize(final Element element) {
    final int len = element.getChildNodes().getLength();

    if (len > 0) {
        element.setAttribute("size", "" + len);
    } else {//  ww  w. j a  v a2s.  c  om
        element.getParentNode().removeChild(element);
    }
}

From source file:Main.java

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

From source file:Main.java

public static Element getElementByTagName(Element n, String elementName) {
    int sz = n.getChildNodes().getLength();
    ArrayList<Element> elements = new ArrayList<Element>(sz);
    for (int idx = 0; idx < sz; idx++) {
        Node node = n.getChildNodes().item(idx);
        if (node instanceof Element && node.getLocalName().equals(elementName))
            elements.add((Element) node);
    }/*from  www.  j a  v  a2  s . c  o m*/
    if (elements.size() > 0)
        return elements.get(0);
    return null;
}

From source file:Main.java

public static int findFirstChildIndex(Element elem, String tagName) {
    NodeList nl = elem.getChildNodes();
    for (int i = 0; i < nl.getLength(); ++i) {
        if (nl.item(i).getNodeName().equals(tagName))
            return i;
    }//from www . j a va 2 s  .  co m
    return -1;
}

From source file:Main.java

public static String getElementText(Element element) {
    NodeList nl = element.getChildNodes();

    for (int i = 0; i < nl.getLength(); i++) {
        Node c = nl.item(i);/*  ww w . j av  a  2 s  .  c  o m*/
        if (c instanceof Text) {
            return ((Text) c).getData().trim();
        }
    }

    return null;
}

From source file:Main.java

public static void removeContent(Element element) {
    NodeList nodeList = element.getChildNodes();
    while (nodeList.getLength() > 0) {
        element.removeChild(nodeList.item(0));
    }//from  w w  w.  ja  v  a2  s  . c  o m

}