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 Node[] getChildrenNamed(Node node, String name) {
    ArrayList v = new ArrayList();

    NodeList nList = node.getChildNodes();
    for (int i = 0; i < nList.getLength(); i++) {
        Node n = nList.item(i);//from   w  ww . j  av  a2  s . c  om
        if (n.getNodeName().equalsIgnoreCase(name)) {
            v.add(n);
        }
    }

    Node[] nodeArray = new Node[v.size()];
    nodeArray = (Node[]) v.toArray(nodeArray);
    return nodeArray;
}

From source file:Main.java

public static boolean nodeExist(InputStream is, String xpathStr)
        throws SAXException, IOException, XPathExpressionException {
    boolean result = false;
    Document doc = null;/*  w w w  .  j  ava 2 s.  c  o  m*/
    if (is == null)
        return result;
    doc = dombuilder.parse(is);
    Object obj = xpath.compile(xpathStr).evaluate(doc, XPathConstants.NODESET);
    if (obj != null) {
        NodeList nodes = (NodeList) obj;
        if (nodes.getLength() > 0) {
            result = true;
        }
    }
    return result;
}

From source file:Main.java

public static Node findByID(Document doc, String id, String tagName) {
    NodeList node = doc.getElementsByTagName(tagName);
    for (int i = 0; i < node.getLength(); i++) {
        NamedNodeMap attributtes = node.item(i).getAttributes();
        for (int j = 0; j < attributtes.getLength(); j++)
            if (id.equalsIgnoreCase(attributtes.item(j).getNodeValue()))
                return node.item(i);
    }//from   www.ja  v a 2s. c  o  m

    return null;
}

From source file:Main.java

public static Element[] getChildrenByName(Element parentElement, String childrenName) {
    NodeList nl = parentElement.getChildNodes();
    int max = nl.getLength();
    LinkedList<Node> list = new LinkedList<Node>();
    for (int i = 0; i < max; i++) {
        Node n = nl.item(i);//w  w  w.j a va  2  s. com
        if (n.getNodeType() == Node.ELEMENT_NODE && n.getNodeName().equals(childrenName)) {
            list.add(n);
        }
    }
    return list.toArray(new Element[list.size()]);
}

From source file:Main.java

public static String getTextValue(Element ele, String tagName) {
    String textVal = null;//from w w w  .ja v a  2 s.  c  o  m
    NodeList nl = ele.getElementsByTagName(tagName);
    if (nl != null && nl.getLength() > 0) {
        Element el = (Element) nl.item(0);
        if (el == null)
            return null;
        if (el.getFirstChild() == null)
            return null;
        textVal = el.getFirstChild().getNodeValue();
    }

    return textVal;
}

From source file:Utils.java

public static Element findContainerElseCreate(Document document, Element parent, String child) {
    NodeList nl = parent.getElementsByTagName(child);
    if (nl.getLength() == 0) {
        parent.appendChild(document.createElement(child));
    }/*  www  .j ava2s. c  om*/
    return (Element) parent.getElementsByTagName(child).item(0);
}

From source file:Main.java

public static String getTextContent(Element elm) {
    if (elm == null) {
        return null;
    }/*from  ww w . j  av a 2  s  .co  m*/
    StringBuilder result = new StringBuilder();
    NodeList childNodes = elm.getChildNodes();
    for (int i = 0; i < childNodes.getLength(); i++) {
        Node node = childNodes.item(i);
        if ((node == null) || (node.getNodeType() != Node.TEXT_NODE)) {
            continue;
        }
        result.append(((Text) node).getData());
    }
    return result.toString().trim();
}

From source file:Main.java

/**
 * Returns the inner value of the named node in the given document.  The node must only exist once
 *
 * @param doc the XML document//from w  w w.java 2  s  .c om
 * @param nodeName the name of the node
 * @return the value of the named node
 */
public static String getNodeInnerValue(final Document doc, final String nodeName) throws SAXException {
    final NodeList nodes = doc.getElementsByTagName(nodeName);
    if (nodes.getLength() != 1) {
        throw new SAXException("Could not get single node for " + nodeName);
    }
    final NodeList childNodes = nodes.item(0).getChildNodes();
    if (childNodes.getLength() != 1) {
        throw new SAXException("Could not get single child node for " + nodeName);
    }
    return childNodes.item(0).getNodeValue();
}

From source file:Main.java

public static Element getFirstChildElement(Node parent) {
    NodeList children = parent.getChildNodes();
    for (int i = 0; i < children.getLength(); ++i)
        if (children.item(i) instanceof Element)
            return (Element) children.item(i);
    return null;/*from   w w w  .j av a  2  s .co  m*/
}

From source file:Main.java

/**
 * Extract the text symbol from the given DOM element, ignoring XML comments.
 * <p>Appends all CharacterData nodes and EntityReference nodes
 * into a single String symbol, excluding Comment nodes.
 * @see CharacterData//  w  w  w  .j  a  va2  s. c om
 * @see EntityReference
 * @see Comment
 */
public static String getTextValue(Element valueEle) {
    StringBuffer value = new StringBuffer();
    NodeList nl = valueEle.getChildNodes();
    for (int i = 0; i < nl.getLength(); i++) {
        Node item = nl.item(i);
        if (item instanceof CharacterData && !(item instanceof Comment) || item instanceof EntityReference)
            value.append(item.getNodeValue());
    }
    return value.toString();
}