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

/**
 * Returns all children of the given element which are element named as
 * specified./* w w w . j  a v a  2  s. c o m*/
 */
public static List<Element> getNamedChildren(Element element, String elementNames) {
    List<Element> result = new ArrayList<Element>();
    NodeList children = element.getChildNodes();
    for (int i = 0; i < children.getLength(); ++i) {
        Node node = children.item(i);
        if (node.getNodeType() == Node.ELEMENT_NODE && node.getNodeName().equals(elementNames)) {
            result.add((Element) node);
        }
    }
    return result;
}

From source file:Main.java

public static Hashtable<String, String> getChildHash(Element elem) {
    if (elem == null)
        return null;
    NodeList nl = elem.getChildNodes();
    if (nl == null)
        return null;
    Hashtable<String, String> retlist = new Hashtable<String, String>(nl.getLength());
    for (int n = 0; n < nl.getLength(); n++) {
        Node child = nl.item(n);/* w  w w  .j a va 2  s . c om*/
        if (child instanceof Element) {
            Element element = (Element) child;
            String key = element.getTagName();
            String value = getSimpleElementText(element);
            retlist.put(key, value);
        }
    }
    if (retlist.size() == 0)
        return null;
    return retlist;
}

From source file:Main.java

/**
 * Retrieves the given DOM element's child elements with the specified name.
 * If name is null, all children are retrieved.
 *///from   w  ww  .  j  a  va 2s  . c  om
public static Element[] getChildren(final Element el, final String name) {
    final Vector v = new Vector();
    final NodeList nodes = el.getChildNodes();
    final int len = nodes.getLength();
    for (int i = 0; i < len; i++) {
        final Node node = nodes.item(i);
        if (!(node instanceof Element))
            continue;
        final Element e = (Element) node;
        if (name == null || e.getTagName().equals(name))
            v.add(e);
    }
    final Element[] els = new Element[v.size()];
    v.copyInto(els);
    return els;
}

From source file:Main.java

public static Element getFirstChildElement(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 w w.  j av  a 2  s. c o  m
        if (node.getNodeType() == Node.ELEMENT_NODE && (name == null || node.getNodeName().equals(name)))
            return (Element) node;
    }

    return null;
}

From source file:Main.java

/**
 * Get the elements with the given name.
 * @param element/* w  ww  .j av a2 s  .  c o  m*/
 * @param name
 * @return array, never <code>null</code>
 */
public static Element[] getChildElementsNamed(Element element, String name) {
    if (element == null)
        return new Element[0];
    NodeList nodeList = element.getChildNodes();
    List<Element> elements = new ArrayList<Element>();
    Node node = nodeList.item(0);
    while (node != null) {
        if (node instanceof Element && name.equals(node.getNodeName())) {
            elements.add((Element) node);
        }
        node = node.getNextSibling();
    }
    return (Element[]) elements.toArray(new Element[elements.size()]);
}

From source file:Main.java

/**
 * Get child elements by name, ignoring namespace declarations
 *
 * @param ele parent element// w  ww . ja  v  a  2  s .co  m
 * @param name name of elements to find
 */
public static List<Element> getElementsByName(Element ele, String name) {
    Vector<Element> list = new Vector();
    NodeList nl = ele.getChildNodes();
    for (int j = 0; j < nl.getLength(); j++) {
        if (nl.item(j).getNodeType() != Node.ELEMENT_NODE)
            continue;
        Element e = (Element) nl.item(j);
        String n = e.getNodeName();
        if (matches(n, name))
            list.add(e);
    }
    return (list);
}

From source file:Main.java

/**
 * Returns the number of child elements of parent that have the given
 * element tag name.//from w w  w  .j av  a  2s . c om
 * 
 * @param name
 *            Element tag name to search for
 * @param parent
 *            Parent to search
 * @return Count of child elements that have the given name
 */
public static int getCountChildElementsByTagName(String name, Element parent) {
    if (parent == null) {
        return 0;
    }
    NodeList children = parent.getChildNodes();
    if (children == null) {
        return 0;
    }
    int count = 0;
    for (int i = 0; i < children.getLength(); i++) {
        Node node = children.item(i);
        if (node instanceof Element) {
            Element e = (Element) node;
            if (e.getTagName().equals(name)) {
                count++;
            }
        }
    }
    return count;
}

From source file:Main.java

public static List<Element> getChildElementsByTagName(Element ele, String... childEleNames) {
    List<String> childEleNameList = Arrays.asList(childEleNames);
    NodeList nl = ele.getChildNodes();
    List<Element> childEles = new ArrayList<Element>();
    for (int i = 0; i < nl.getLength(); i++) {
        Node node = nl.item(i);/*from  ww  w  .j  a va 2 s  .  c  om*/
        if (node instanceof Element && nodeNameMatch(node, childEleNameList)) {
            childEles.add((Element) node);
        }
    }
    return childEles;
}

From source file:Main.java

public static String getTextContents(Element e) {
    if (!e.hasChildNodes())
        return null;

    StringBuffer buf = new StringBuffer();
    NodeList list = e.getChildNodes();
    int len = list.getLength();
    String text;/*from w  w w.  j  a va 2 s  . com*/
    for (int i = 0; i < len; i++) {
        text = ((Node) list.item(i)).getNodeValue();
        if (text != null)
            buf.append(text);
    }
    return buf.toString();
}

From source file:Main.java

public static void emptyXMLDocument(File file) {
    if (file.exists()) {
        Document document = loadXMLDocument(file);
        if (document != null) {
            Element root = getRoot(document);
            NodeList nodeList = root.getChildNodes();
            for (int i = 0; i < nodeList.getLength(); i++) {
                root.removeChild(nodeList.item(i));
            }// w ww  . j a  va  2s . co m
            saveXMLDocument(document, file);
        }
    }
}