001    /*
002     * $Id: DOMCategory.java,v 1.1 2004/04/27 02:25:29 spullara Exp $version Apr 25, 2004 5:18:30 PM $user Exp $
003     * 
004     * Copyright 2003 (C) Sam Pullara. All Rights Reserved.
005     * 
006     * Redistribution and use of this software and associated documentation
007     * ("Software"), with or without modification, are permitted provided that the
008     * following conditions are met: 1. Redistributions of source code must retain
009     * copyright statements and notices. Redistributions must also contain a copy of
010     * this document. 2. Redistributions in binary form must reproduce the above
011     * copyright notice, this list of conditions and the following disclaimer in the
012     * documentation and/or other materials provided with the distribution. 3. The
013     * name "groovy" must not be used to endorse or promote products derived from
014     * this Software without prior written permission of The Codehaus. For written
015     * permission, please contact info@codehaus.org. 4. Products derived from this
016     * Software may not be called "groovy" nor may "groovy" appear in their names
017     * without prior written permission of The Codehaus. "groovy" is a registered
018     * trademark of The Codehaus. 5. Due credit should be given to The Codehaus -
019     * http://groovy.codehaus.org/
020     * 
021     * THIS SOFTWARE IS PROVIDED BY THE CODEHAUS AND CONTRIBUTORS ``AS IS'' AND ANY
022     * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
023     * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
024     * DISCLAIMED. IN NO EVENT SHALL THE CODEHAUS OR ITS CONTRIBUTORS BE LIABLE FOR
025     * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
026     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
027     * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
028     * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
029     * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
030     * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
031     *  
032     */
033    package groovy.xml.dom;
034    
035    import org.w3c.dom.Element;
036    import org.w3c.dom.NodeList;
037    
038    /**
039     * @author sam
040     */
041    public class DOMCategory {
042    
043        public static Object get(Element element, String elementName) {
044            return getAt(element, elementName);
045        }
046        
047        public static Object getAt(Element element, int i) {
048            if (element.hasChildNodes()) {
049                NodeList nodeList = element.getChildNodes();
050                            return nodeList.item(i);
051            }
052            return null;
053        }
054        
055        public static Object getAt(Element element, String elementName) {
056            if (elementName.startsWith("@")) {
057                String attrName = elementName.substring(1);
058                    return element.getAttribute(attrName);
059            }
060            if (element.hasChildNodes()) {
061                NodeList nodeList = element.getChildNodes();
062                for (int i = 0; i < nodeList.getLength(); i++) {
063                    Object node = nodeList.item(i);
064                    if (node instanceof Element) {
065                        Element child = (Element) node;
066                        child.hasChildNodes();
067                        if(child.getTagName().equals(elementName)) {
068                            return child;
069                        }
070                    }
071                }
072            }
073            return null;
074        }
075    
076    }