Example usage for org.w3c.dom Element removeChild

Introduction

In this page you can find the example usage for org.w3c.dom Element removeChild.

Prototype

public Node removeChild(Node oldChild) throws DOMException;

Source Link

Document

Removes the child node indicated by oldChild from the list of children, and returns it.

Usage

From source file:Main.java

/**
 * Recursively removes all text nodes containing whitespace only from a document element. Also
 * trims leading and trailing whitespace from text nodes.
 * //ww  w.  j  a  v  a 2  s . co m
 * @param e The root document element.
 */
public static void removeWhitespaceNodes(Element e) {
    NodeList children = e.getChildNodes();
    for (int i = children.getLength() - 1; i >= 0; i--) {
        Node child = children.item(i);
        if (child instanceof Text && ((Text) child).getData().trim().length() == 0)
            e.removeChild(child);
        else if (child instanceof Text)
            child.setTextContent(((Text) child).getData().trim());
        else if (child instanceof Element)
            removeWhitespaceNodes((Element) child);
    }
}

From source file:Main.java

public static void removeWhitespaceNodes(Element e) {
    NodeList children = e.getChildNodes();
    for (int i = children.getLength() - 1; i >= 0; i--) {
        Node child = children.item(i);
        if (child instanceof Text && ((Text) child).getData().trim().length() == 0) {
            e.removeChild(child);
        } else if (child instanceof Element) {
            removeWhitespaceNodes((Element) child);
        }//from   w  ww .  j  av a 2  s . c  o m
    }
}

From source file:Main.java

public static void reduceChildrenListRecursive(Element elem) {
    for (int i = 0; i < elem.getChildNodes().getLength();) {
        Node node = elem.getChildNodes().item(i);
        if (node instanceof Element) {
            reduceChildrenListRecursive((Element) node);
            ++i;/*from   ww w .  ja v a  2s .co  m*/
        } else {
            elem.removeChild(node);
        }
    }
}

From source file:Main.java

/**
 * @see //http://www.java.net/node/667186
 */// w  w  w.ja v  a 2  s .c  o  m
public static void removeWhitespaceNodes(Element e) {
    NodeList children = e.getChildNodes();
    for (int i = children.getLength() - 1; i >= 0; i--) {
        Node child = children.item(i);
        if (child instanceof Text && ((Text) child).getData().trim().length() == 0) {
            e.removeChild(child);
        } else if (child instanceof Element) {
            removeWhitespaceNodes((Element) child);
        }
    }
}

From source file:Main.java

public static void removeAllChilds(Element parentElem) {
    NodeList children = parentElem.getChildNodes();

    if (children != null) {
        int listLength = children.getLength();
        for (int i = listLength - 1; i >= 0; i--) {
            Element child = (Element) children.item(i);
            parentElem.removeChild(child);
        }/*w  w w  .  j a va  2  s  . c  om*/
    }
}

From source file:Main.java

/**
 * Recursively removes all text nodes from a DOM element.
 * // w  w w . ja v  a2s.co  m
 * @param element
 *        The element
 */
public static void removeTextNodes(Element element) {
    Node nextNode = element.getFirstChild();
    for (Node child = element.getFirstChild(); nextNode != null;) {
        child = nextNode;
        nextNode = child.getNextSibling();
        if (child.getNodeType() == Node.TEXT_NODE)
            element.removeChild(child);
        else if (child.getNodeType() == Node.ELEMENT_NODE)
            removeTextNodes((Element) child);
    }
}

From source file:Main.java

public static String setInnerText(Element node, String value) {
    StringBuilder sb = new StringBuilder();
    while (node.hasChildNodes()) {
        Node tn = node.getFirstChild();
        if (tn.getNodeType() == Node.TEXT_NODE) {
            sb.append(tn.getNodeValue());
        }//from www  . j  a v a2  s  .  com
        node.removeChild(tn);
    }
    node.appendChild(node.getOwnerDocument().createTextNode(value));
    return sb.toString();
}

From source file:Main.java

/**
 * Set the text content of an element. All exisitng Text Node are
 * removed before adding a new Text Node containing the given text.
 *
 * @param element target element to set text content, cannot be null.
 * @param text content of the element, cannot be null.
 *//*  www  . j a  v  a  2  s .c om*/
public static void setElementText(Element element, String text) {

    // Remove all text element
    NodeList list = element.getChildNodes();
    int len = list.getLength();

    for (int i = 0; i < len; i++) {
        Node n = list.item(i);

        if (n.getNodeType() == Node.TEXT_NODE) {
            element.removeChild(n);
        }
    }
    Node child = element.getFirstChild();
    Node textnode = element.getOwnerDocument().createTextNode(text);

    // insert text node as first child
    if (child == null) {
        element.appendChild(textnode);
    } else {
        element.insertBefore(textnode, child);
    }
}

From source file:Main.java

/**
 * Traverses through a DOM tree starting at the given element and removes all those text-nodes from it that only
 * contain white spaces.//from  w  ww.ja  va2  s  .c  o  m
 * 
 * @param parent
 *          the parent Element
 */
public static void removeWhitespaceTextNodes(Element parent) {
    final NodeList nl = parent.getChildNodes();

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

        if (child.getNodeType() == Node.TEXT_NODE) {
            if (child.getNodeValue().trim().length() == 0) {
                parent.removeChild(child);
                i--; // since the child is removed counting up must be made undone
            }
        } else if (child.getNodeType() == Node.ELEMENT_NODE && child.getChildNodes().getLength() > 0) {
            removeWhitespaceTextNodes((Element) child);
        }
    }
}

From source file:Main.java

public static void removeElement(Element parent, String tagName) {
    logger.debug("remove " + parent.getNodeName() + "'s children by tagName " + tagName + " begin...");
    NodeList nl = parent.getChildNodes();
    for (int i = 0; i < nl.getLength(); i++) {
        Node nd = nl.item(i);/*from  ww  w  . jav a 2s  .  c o m*/
        if (nd.getNodeName().equals(tagName)) {
            parent.removeChild(nd);
            logger.debug("remove child '" + nd + "' success.");
        }
    }
    logger.debug("remove " + parent.getNodeName() + "'s children by tagName " + tagName + " end.");
}