Java XML Element Root getRootElement(Document d)

Description

If first node found is not an element, returns null.

License

Open Source License

Parameter

Parameter	Description
d	a parameter

Return

the root element, or null if d is null or a root element is not found

Declaration

public static Element getRootElement(Document d) 

Method Source Code

//package com.java2s;
/**//from ww w . j av a 2  s  .c om
 * 
 * This file is part of SavoyCraft.
 * 
 * SavoyCraft is free software: you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the
 * Free Software Foundation, either version 3 of the License, or (at your
 * option) any later version.
 * 
 * SavoyCraft is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
 * License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public License
 * along with SavoyCraft. If not, see <http://www.gnu.org/licenses/>.
 * 
 */

import org.w3c.dom.Document;
import org.w3c.dom.Element;

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

public class Main {
    /**
     * If first node found is not an element, returns null.
     * @param d
     * @return the root element, or null if d is null or a root element is not
     *         found
     */
    public static Element getRootElement(Document d) {
        if (d == null) {
            return null;
        }

        NodeList list = d.getChildNodes();
        if (list.getLength() <= 0) {
            return null;
        } else {
            Node n = list.item(0);
            if (n instanceof Element) {
                return (Element) n;
            } else {
                return null;
            }
        }
    }
}

Related

1. getRoot(Document doc)
2. getRoot(Document doc)
3. getRoot(Document document)
4. getRoot(final Document doc)
5. getRoot(SOAPElement e)
6. getRootElement(Document doc)
7. getRootElement(Document doc)
8. getRootElement(Document doc)
9. getRootElement(Document document)