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 Element getElementByTagName(Document document, String element) {
    NodeList nodeList = document.getElementsByTagName(element);
    if (nodeList.getLength() > 0) {
        return (Element) nodeList.item(0);
    } else {/*ww w . j a v  a 2  s .  com*/
        return null;
    }
}

From source file:Main.java

public static String getStringValueForXMLTag(Element xmlElement, String key) {
    NodeList nl = xmlElement.getElementsByTagName(key);
    if (nl.getLength() > 0) {
        Node node = nl.item(0).getFirstChild();
        if (node != null) {
            String output = node.getNodeValue().trim();
            return output;
        }//from  ww w . java2s . co m
    }
    return "";
}

From source file:Main.java

static public String getNodeValue(String tagName, NodeList nodes) {
    for (int x = 0; x < nodes.getLength(); x++) {
        Node node = nodes.item(x);
        if (node.getNodeName().equalsIgnoreCase(tagName)) {
            NodeList childNodes = node.getChildNodes();
            for (int y = 0; y < childNodes.getLength(); y++) {
                Node data = childNodes.item(y);
                if (data.getNodeType() == Node.TEXT_NODE) {
                    return data.getNodeValue();
                }/*from w ww .j a v  a 2 s .c o  m*/
            }
        }
    }
    return "";
}

From source file:Main.java

public static Element getFirstElementByTagName(Element parentElement, String tagName) {
    NodeList list = parentElement.getElementsByTagName(tagName);
    if (list.getLength() == 0)
        return null;
    else/*from  w w w .  java  2s.  co  m*/
        return (Element) list.item(0);
}

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);/*ww w . j av  a  2s.  c o  m*/
        if (curr.getNodeType() == Element.ELEMENT_NODE && curr.getNodeName().equals(name))
            return (Element) curr;
    }

    return null;
}

From source file:Main.java

public static Node getChildNode(Node parentNode, String childElementName) {
    NodeList l = parentNode.getChildNodes();
    for (int i = 0; i < l.getLength(); i++) {
        Node node = l.item(i);//  w w w .  jav  a2 s .co m
        if (node.getNodeName().equals(childElementName))
            return node;
    }
    return null;
}

From source file:Main.java

private static Object nodeValue(Node node) {
    NodeList childList = node.getChildNodes();
    if (childList.getLength() == 0) {
        return "";
    } else if (childList.getLength() == 1 && childList.item(0).getNodeType() == Node.TEXT_NODE) {
        return node.getTextContent().trim();
    } else {//w  ww .  j a  v a  2s.c om
        List<Object> value = new ArrayList<Object>();
        for (int i = 0; i < childList.getLength(); i++) {
            value.add(nodeValue(childList.item(i)));
        }
        return value;
    }
}

From source file:Main.java

static private boolean existNode(Node node, String nodeName, String textValue) {
    NodeList childs = node.getChildNodes();
    for (int i = 0; i < childs.getLength(); i++) {
        if (childs.item(i).getNodeName().equals(nodeName)
                && childs.item(i).getTextContent().equals(textValue)) {
            return true;
        }/*from w ww  .  j av a 2s.  c  o  m*/
    }
    return false;
}

From source file:Main.java

/**
 * Scans the tag's children and returns the first text element found
 *///from   www .  j a v  a  2  s  . co  m
public static String getTagText(Element ele) {
    NodeList nl = ele.getChildNodes();
    int size = nl.getLength();

    Node node = null;
    int i = 0;
    for (; i < size; i++) {
        node = nl.item(i);
        if (node instanceof Text)
            break;
    }
    if (i == size || node == null)
        return null;

    return ((Text) node).getData();
}

From source file:Main.java

private static Element findElement(Element root, String tag) throws IOException {
    NodeList elements = root.getElementsByTagName(tag);

    if (elements.getLength() == 0) {
        throw new IOException("Tag " + tag + " was expected and not found.");
    } else if (elements.getLength() != 1) {
        throw new IOException("Tag " + tag + " cannot have multiple definitions.");
    }/*w  ww. j a  v  a  2s .c o  m*/

    return (Element) elements.item(0);
}