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

/** Converts a NodeList to an Iterable of Nodes. */
public static Iterable<Node> toIterable(NodeList nodeList) {
    List<Node> nodes = new ArrayList<>(nodeList.getLength());
    for (int i = 0; i < nodeList.getLength(); i++) {
        nodes.add(nodeList.item(i));/*from w ww  . jav a  2  s  .com*/
    }
    return nodes;
}

From source file:Main.java

public static boolean containsElementByValue(NodeList elements, String value) {
    for (int i = 0; i < elements.getLength(); i++) {
        Node node = elements.item(i);
        if (node.getTextContent().equals(value)) {
            return true;
        }//from w  w w  .j a v  a 2 s . co m
    }
    return false;
}

From source file:Main.java

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

    return textVal;
}

From source file:Main.java

private final static boolean isParentNode(Node element) {
    NodeList elements = element.getChildNodes();
    for (int i = 0; i < elements.getLength(); i++) {
        Node child = elements.item(i);
        if (child.getNodeType() == Node.ELEMENT_NODE) {
            return true;
        }/*w w w .  j ava2s.  c om*/
    }

    return false;
}

From source file:Main.java

/**
 * Hack...since DOM reads newlines as textnodes we want to strip out those nodes to make it easier to use the tree.
 *///from  w  ww . j  a  va 2 s.co  m
public static void stripEmptyTextNodes(Node n) {
    NodeList children = n.getChildNodes();
    int length = children.getLength();
    for (int i = 0; i < length; i++) {
        Node c = children.item(i);
        if (!c.hasChildNodes() && c.getNodeType() == Node.TEXT_NODE
                && c.getTextContent().trim().length() == 0) {
            n.removeChild(c);
            i--;
            length--;
            children = n.getChildNodes();
        } else {
            stripEmptyTextNodes(c);
        }
    }
}

From source file:Main.java

/** Returns the first element with the given name from a document.
 * /*from w w  w. j  ava  2  s  .  c  om*/
 *  @param doc Document to be searched
 *  @param name The element name to search for
 *  @return Node representing the element
 */
public static Node getNodeByName(Document doc, String name) {
    Node retVal = null;
    NodeList nl = doc.getElementsByTagName(name);
    if (nl != null && nl.getLength() != 0)
        retVal = nl.item(0);
    return retVal;
}

From source file:TestDOM.java

public static Element getFirstElement(Element element, String name) {
    NodeList nl = element.getElementsByTagName(name);
    if (nl.getLength() < 1)
        throw new RuntimeException("Element: " + element + " does not contain: " + name);
    return (Element) nl.item(0);
}

From source file:Main.java

public static Node getChildNode(Node node, String childNodeName) {
    final NodeList children = node.getChildNodes();
    for (int i = 0; i < children.getLength(); i++) {
        final Node childNode = children.item(i);
        if (childNode.getNodeName().equals(childNodeName)) {
            return childNode;
        }// w  w  w .  ja va 2  s  .  c o m
    }
    return null;
}

From source file:Main.java

/**
 * Returns a node's first child node that is an element.
 * @param parent/*from  www  .j a v  a 2s. c  om*/
 * @return first child element, or null
 */
public static Element getFirstChildElement(Node parent) {
    NodeList children = parent.getChildNodes();
    for (int i = 0; i < children.getLength(); i++) {
        Node n = children.item(i);
        if (n.getNodeType() == Node.ELEMENT_NODE) {
            return (Element) n;
        }
    }
    return null;
}

From source file:Main.java

/**
 * Return the contained text within an Element. Returns null if no text found.
 *//*from  w  w w  .  j a va  2s  .  com*/
public final static String getElementText(Element element) {
    NodeList nl = element.getChildNodes();

    for (int i = 0; i < nl.getLength(); i++) {
        Node c = nl.item(i);

        if (c instanceof Text) {
            return ((Text) c).getData();
        }
    }

    return null;
}