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

public static String getNodeValue(Node node) {
    return (node == null || node.getFirstChild() == null || node.getFirstChild().getNodeValue() == null) ? null
            : node.getFirstChild().getNodeValue().trim();
}

From source file:Main.java

/**
 * get the value of an Element in the Xml Document.
 * finds the first occurance of the element and retrieves its value.
 * @param root the root Element.//w  w  w . j a va 2s.  co m
 * @param elemName the name of the element to search for.
 * @return String the element value or null if not found.
 */
public static String getElementValue(Element root, String elemName) {
    NodeList nl = root.getElementsByTagName(elemName);
    if (null == nl) {
        return (null);
    }
    Node n = nl.item(0);
    return (n.getFirstChild().getNodeValue().trim());
}

From source file:Main.java

public static boolean hasOnlyTextChildren(/*@Nonnull*/Node node) {
    Node childNode = node.getFirstChild();

    while (childNode != null) {
        if (!(childNode instanceof Text)) {
            return false;
        }//from   w w w  .  j a va  2  s .c  o m

        childNode = childNode.getNextSibling();
    }

    return true;
}

From source file:Main.java

/**
 * Returns the text associated to the given node
 * i.e. the value of the/*from w  w w .  j a va2 s .c om*/
 * @param node
 * @return
 */
public static String getText(Node node) {
    Node textNode = node.getFirstChild();
    if (textNode == null) {
        return null;
    }
    short nodeType = textNode.getNodeType();
    if (nodeType != Node.TEXT_NODE && nodeType != Node.CDATA_SECTION_NODE) {
        return null;
    }
    return textNode.getNodeValue().trim();
}

From source file:Main.java

/**
 * Getter for a specific text content of the given node.
 * @param node Node.// w w  w.  j a  v  a  2s . c  om
 * @param name Name of element tags around the text content.
 * @return Returns the content or null if no content with the given
 * name exists.
 */
static public String getTextContent(Node node, String name) {
    node = node.getFirstChild();
    while (node != null) {
        if (node.getNodeName().equals(name))
            return (node.getTextContent());
        node = node.getNextSibling();
    }
    return (null);
}

From source file:Main.java

public static void removeChildNodes(Node node) {
    for (Node current = node.getFirstChild(), next; current != null; current = next) {
        next = current.getNextSibling();
        node.removeChild(current);//from  w w  w. j a v  a 2  s . co m
    }
}

From source file:Main.java

public static Element firstChildElement(Node node) {
    for (Node tempNode = node.getFirstChild(); tempNode != null; tempNode = tempNode.getNextSibling()) {
        if (tempNode.getNodeType() == Node.ELEMENT_NODE) {
            return (Element) tempNode;
        }/*from  w ww . java2s.  c  o m*/
    }
    return null;
}

From source file:Main.java

/**
 * Returns the content of the specified node.
 * <p>//  w w w  . jav  a2 s  .  com
 * Example:
 *
 * <pre>
 * {@code <name>John</name>
 * 
 * getContent(name); // returns "John"}
 * </pre>
 *
 * @param node
 *            The node to get the field child from.
 * @return The content of the specified node, or {@code null} if no such content exists.
 */
public static String getContent(Node node) {
    Node fieldNode = node.getFirstChild();
    if (fieldNode == null) {
        return null;
    }
    return fieldNode.getNodeValue();
}

From source file:Main.java

public static Node findChild(Node node, String chName) {
    for (Node child = node.getFirstChild(); child != null; child = child.getNextSibling()) {
        if (child.getNodeType() == Node.ELEMENT_NODE && child.getNodeName().equals(chName)) {
            return child;
        }/*from   w  w w .j av  a 2 s  .c  o m*/
    }
    return null;
}

From source file:Main.java

/**
 * Returns the value of the first child node of the given node, and asserts
 * that the child node is a Text node./*from   w  w  w  .  j ava 2 s .c  om*/
 * 
 * @param node a node containing a single Text child node
 * @return the value of the child Text node
 */
public static String getChildText(Node node) {
    Node child = node.getFirstChild();
    assert (child.getNodeType() == Node.TEXT_NODE);
    return child.getNodeValue();
}