Java XML Node Find findNode(Node aNode, String aName)

Description

------------------------------------------------------------ Finds the first node of a given type

License

Open Source License

Parameter

Parameter	Description
aNode	Parent to search (should be the document root)
aName	Name of node to find

Return

Returns the node of that name or null --------------------------------------------------------------

Declaration

public static Node findNode(Node aNode, String aName)

Method Source Code

//package com.java2s;
/*/*from   w w  w  .j a  v  a2s  .c  o  m*/
 * Copyright (c) 2010 The Regents of the University of California.
 * All rights reserved.
 *
 * '$Author: welker $'
 * '$Date: 2010-05-05 22:21:26 -0700 (Wed, 05 May 2010) $' 
 * '$Revision: 24234 $'
 * 
 * Permission is hereby granted, without written agreement and without
 * license or royalty fees, to use, copy, modify, and distribute this
 * software and its documentation for any purpose, provided that the above
 * copyright notice and the following two paragraphs appear in all copies
 * of this software.
 *
 * IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY
 * FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
 * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF
 * THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE
 * PROVIDED HEREUNDER IS ON AN "AS IS" BASIS, AND THE UNIVERSITY OF
 * CALIFORNIA HAS NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES,
 * ENHANCEMENTS, OR MODIFICATIONS.
 *
 */

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

public class Main {
    /**
     * ------------------------------------------------------------ Finds the
     * first node of a given type
     * 
     * @param aNode
     *            Parent to search (should be the document root)
     * @param aName
     *            Name of node to find
     * @return Returns the node of that name or null
     *         --------------------------------------------------------------
     */
    public static Node findNode(Node aNode, String aName) {
        String name = aNode.getNodeName() != null ? aNode.getNodeName()
                .trim() : "";
        if (aName.equalsIgnoreCase(name)) {
            return aNode;
        }

        NodeList list = aNode.getChildNodes();
        for (int i = 0; i < list.getLength(); i++) {
            Node child = list.item(i);
            if (child != null) {
                Node node = findNode(child, aName);
                if (node != null) {
                    return node;
                }
            }
        }
        return null;
    }
}