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

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

    return null;
}

From source file:Main.java

/**
 * Searches parent node for matching child nodes.
 *
 * @param node     The parent node//  w w w  .ja v  a2  s  .c  o  m
 * @param nodeName The child node's element name
 * @return A list of matching child Nodes
 */
public static Iterator getNodes(Node node, String nodeName) {
    ArrayList nodes = new ArrayList();
    NodeList nl = node.getChildNodes();
    int nll = nl.getLength();
    for (int i = 0; i < nll; i++) {
        Node n = nl.item(i);
        if (n.getNodeName().equals(nodeName)) {
            nodes.add(n);
        }
    }
    return nodes.iterator();
}

From source file:Main.java

/**
 * get single element by tag name/*from ww  w.  j  a va 2  s. c o m*/
 * @param element
 * @param tag
 * @return
 */
public static List<Element> getChildElements(Element element) {
    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;
            elems.add(e);
        }
    }
    return elems;
}

From source file:Main.java

/**
 * Search a child node by type// w  w w  .j  a v a 2s.c o  m
 * 
 * @param parent   the parent node
 * @param nodeType  the node type for searching
 * @return         Node with the specified name
 * @see            Node
 * @throws Exception
 */
public static Node findChildNodeByType(Node parent, String nodeType) throws Exception {
    NodeList nl = parent.getChildNodes();
    for (int i = 0; i < nl.getLength(); i++) {
        Node node = nl.item(i);
        if (node.getNodeName().equals("Node")) {
            String strType = node.getAttributes().getNamedItem("type").getNodeValue();
            if (strType.equals(nodeType))
                return node;
        }
    }
    return null;
}

From source file:Main.java

public static Element[] getChildren(Element parent, String name) {
    ArrayList<Element> al = new ArrayList<Element>();
    NodeList nl = parent.getChildNodes();
    for (int i = 0; i < nl.getLength(); i++) {
        Node n = nl.item(i);/*  w w  w .  j av  a 2s . c  om*/
        if (n.getNodeType() == Node.ELEMENT_NODE && n.getNodeName().equals(name)) {
            al.add((Element) n);
        }
    }
    return al.toArray(new Element[0]);
}

From source file:Main.java

public static Element[] getElementsByName(Element parent, String name) {
    ArrayList resList = new ArrayList();
    NodeList nl = getNodeList(parent);
    for (int i = 0; i < nl.getLength(); i++) {
        Node nd = nl.item(i);//from w w w . ja va  2 s.  c  o m
        if (nd.getNodeName().equals(name)) {
            resList.add(nd);
        }
    }
    Element[] res = new Element[resList.size()];
    for (int i = 0; i < resList.size(); i++) {
        res[i] = (Element) resList.get(i);
    }
    logger.debug(parent.getNodeName() + "'s children of " + name + "'s num:" + res.length);
    return res;
}

From source file:Utils.java

public static Element findElementOrContainer(Document document, Element parent, String element) {
    NodeList nl = parent.getElementsByTagName(element);
    if (nl.getLength() == 0) {
        return null;
    }/* w ww. j ava2s . co  m*/
    return (Element) nl.item(0);
}

From source file:Main.java

public static String getTagValue(Node node, String name) {

    if (node.getNodeType() == Node.ELEMENT_NODE) {

        Element el = (Element) node;
        NodeList nodeList = el.getElementsByTagName(name);
        if (nodeList.getLength() > 0) {
            el = (Element) nodeList.item(0);
            nodeList = el.getChildNodes();

            if (nodeList.getLength() > 0) {
                return ((Node) nodeList.item(0)).getNodeValue();
            }/*from ww w .  j  a  v  a 2 s.c  o  m*/
        }

    }
    return "";
}

From source file:Main.java

static List<Node> children(Node parent, String childNS, String... childLocalName) {
    List<String> childNames = Arrays.asList(childLocalName);
    ArrayList<Node> result = new ArrayList<Node>();

    NodeList children = parent.getChildNodes();
    for (int i = 0; i < children.getLength(); i++) {
        Node child = children.item(i);
        if (childNS.equals(child.getNamespaceURI()) && childNames.contains(child.getLocalName())) {

            result.add(child);/* ww w. j a  v  a2  s . c  om*/
        }
    }
    return result;
}

From source file:Main.java

/**
 * Get the text content of an element. If the element contains
 * mixed content (both elements and text), only the first text section
 * is returned./*from  w  ww .ja  va2s.  com*/
 *
 * @param element target element to retrieve text on, cannot be null.
 * @return text content of the element.
 */
public static String getElementText(Element element) {
    element.normalize();
    NodeList list = element.getChildNodes();
    int len = list.getLength();

    for (int i = 0; i < len; i++) {
        Node n = list.item(i);

        if (n.getNodeType() == Node.TEXT_NODE) {
            String s = n.getNodeValue();

            if (s != null) {
                return s.trim();
            }
        }
    }
    return null;
}