Example usage for org.w3c.dom Node getFirstChild

Introduction

In this page you can find the example usage for org.w3c.dom Node getFirstChild.

Prototype

public Node getFirstChild();

Source Link

Document

The first child of this node.

Usage

From source file:Main.java

/** count number of child elements with defined uri and localname */
static public int coutElementNS(Node parent, String uri, String localName) {
    int n = 0;/*from  w w  w .j av  a  2 s  .  co  m*/
    for (Node c = parent.getFirstChild(); c != null; c = c.getNextSibling()) {
        n += (isA(c, uri, localName) ? 1 : 0);
    }
    return n;
}

From source file:Main.java

/**
 * Get XML <code>Node</code> text content.  This method duplicates the
 * org.w3c.dom.Node.getTextContent() method in JDK 1.5.
 *
 * @param baseNode The XML node from which the content is being retrieved.
 * @return The text content of the XML node.
 */// w w  w .  j av a 2 s.c  o m
public static String getTextContent(Node baseNode) {
    // if element, first child will be a text element with content
    Node child = baseNode.getFirstChild();
    if (child != null && child.getNodeType() == Node.TEXT_NODE) {
        return child.getNodeValue();
    }
    return "";
}

From source file:Main.java

/**
 * Get the text from the given node. This assumes the node contains a single child that is a text
 * node./*from w ww  .j av a  2 s.  c o m*/
 *
 * @param node the node from which to extract the text
 * @return the raw text, or the empty string if the element has no children
 * @throws IllegalArgumentException if the first child is not a text node
 */
public static String getText(Node node) throws IllegalArgumentException {
    Node text = node.getFirstChild();
    if (text == null)
        return "";
    if (!(text instanceof Text))
        throw new IllegalArgumentException("Expected text, but found node '" + text.getNodeName() + "'");
    return ((Text) text).getData();
}

From source file:Main.java

public static String getTextData(Node node) {
    if (!node.hasChildNodes()) {
        return null;
    }// w  w w  .  j a va  2  s  .  co m
    Node child = node.getFirstChild();
    while (child != null && child.getNodeType() != Node.TEXT_NODE
            && child.getNodeType() != Node.CDATA_SECTION_NODE) {
        child = child.getNextSibling();
    }
    if (child == null) {
        return null;
    }

    if (child.getNodeType() == Node.TEXT_NODE) {
        return ((Text) child).getData();
    } else {
        return ((CDATASection) child).getData();
    }

}

From source file:Main.java

public static Vector<Element> getChildElemsByName(String name, Node parent) {
    Vector<Element> v = new Vector<Element>();
    Element E = null;/*from   ww w .  j  a v a 2  s . c  o m*/
    for (Node childNode = parent.getFirstChild(); childNode != null; childNode = childNode.getNextSibling()) {
        if (childNode.getNodeType() == Node.ELEMENT_NODE) {
            if (childNode.getNodeName() == name) {
                E = (Element) childNode;
                v.add(E);
            }
        }
    }
    return v;
}

From source file:Main.java

public static String getFirstMatchedValueByChildTagName(Node parent, String name) {
    //List<Element> nodeList = new ArrayList<Element>();
    for (Node child = parent.getFirstChild(); child != null; child = child.getNextSibling()) {
        //System.out.println(child.getNodeName());
        if (child.getNodeType() == Node.ELEMENT_NODE) {
            if (child.getNodeName().indexOf(name) != -1) {
                return child.getTextContent();
            } else {
                String value = getFirstMatchedValueByChildTagName((Element) child, name);
                if (value != null) {
                    return value;
                }/* w  w  w .ja  v a2  s. co  m*/
            }
        }
    }
    return null;
}

From source file:Main.java

/**
 * Extracts the inner text value from a xml node accept : <node>value</node> and return value
 * string/*from   w  w  w.j  av  a2  s .c o m*/
 * 
 * @param node XML node to extract inner text from
 * @return innerText if its not empty otherwise null.
 */
private static String getNodeTextValue(Node node) {
    String innerText = null;
    if (node != null) {
        Node textNode = node.getFirstChild();
        if (textNode != null && textNode.getNodeType() == Node.TEXT_NODE) {
            innerText = textNode.getNodeValue();
            innerText = innerText.trim();
            if (innerText.length() == 0) {
                innerText = null;
            }
        }
    }
    return innerText;
}

From source file:Main.java

/**
 *
 * @param node Node// w  w w .ja  v a 2s.com
 * @param nodeName String
 * @param errValue String
 * @return String
 */
public static String getChildStringByName(Node node, String nodeName, String errValue) {
    Node nd = getChildByName(node, nodeName);
    if (nd != null) {
        Node fnd = nd.getFirstChild();
        if (fnd != null)
            return fnd.getNodeValue();
    }
    return errValue;
}

From source file:Main.java

/**
 * Delete children elements for Node//w w  w .  ja va2 s  . c o  m
 */
public static void removeAllChildren(Node node) {
    if (node != null) {
        while (node.hasChildNodes()) {
            node.removeChild(node.getFirstChild());
        }
    }
}

From source file:Main.java

/**
 * get the value of an Element in the Xml Document.
 * finds the first occurance of the parent element and then searches its children
 * for the first occurance of the element and retrieves its value.
 * @param root the root Element.//from   www. j  av  a  2 s.  co m
 * @param parent the name of the parent element to search for.
 * @param elemName the name of the child element to search for.
 * @return String the element value or null if not found.
 */
public static String getSubElementValue(Element root, String parent, String elemName) {
    NodeList nl = root.getElementsByTagName(parent);
    String value = null;
    if (null == nl) {
        return (null);
    }
    Node node = nl.item(0);
    nl = node.getChildNodes();
    if (null == nl) {
        return (null);
    }

    boolean found = false;
    for (int i = 0; !found && i < nl.getLength(); ++i) {
        Node n = nl.item(i);
        if (elemName.equals(n.getNodeName())) {
            value = n.getFirstChild().getNodeValue().trim();
            found = true;
            break;
        } // if
    } // for
    return (value);
}