Java XML Node Remove removeWhitespaceTextNodes(Element parent)

Description

Traverserses through a DOM tree starting at the given element and removes all those text-nodes from it that only contain whitespaces.

License

Open Source License

Parameter

Parameter	Description
parent	-

Declaration

public static void removeWhitespaceTextNodes(Element parent) 

Method Source Code

//package com.java2s;
/***********************************************************************************************************************
 * Copyright (c) 2008 empolis GmbH and brox IT Solutions GmbH. All rights reserved. This program and the accompanying
 * materials are made available under the terms of the Eclipse Public License v1.0 which accompanies this distribution,
 * and is available at http://www.eclipse.org/legal/epl-v10.html
 * //from w w w .  ja  v a 2s  .c o m
 * Contributors: brox IT-Solutions GmbH - initial creator
 **********************************************************************************************************************/

import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;

public class Main {
    /**
     * Traverserses through a DOM tree starting at the given element and removes all those text-nodes from it that only
     * contain whitespaces.
     * 
     * @param parent
     *          -
     */
    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);
            }
        }
    }
}

Related

1. removeValue(NamedNodeMap values, String name)
2. removeWhitespace(Node node, boolean deep)
3. removeWhitespace(Node parent)
4. removeWhitespaceNodes(Node e)
5. removeWhitespaceNodes(org.w3c.dom.Element e)