Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*******************************************************************************
 * Copyright (c) 2012 Firestar Software, Inc.
 * 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
 *
 * Contributors:
 *     Firestar Software, Inc. - initial API and implementation
 *
 * Author:
 *     Gabriel Oancea
 *
 *******************************************************************************/

import org.w3c.dom.*;

public class Main {
    /**
     * Get the first child element of the specified (root) element that has the specified name. If no element by the
     * specified name is found, null is returned. Note that more than one element with the same name may be a child of
     * root. This method simply returns the first one.
     * 
     * @param root The element to search.
     * @param name The local name of the element to look for.
     * @return The element if found, null otherwise.
     */
    public static Element getElement(Element root, String name) {
        if (root == null || name == null || name.length() <= 0)
            throw new IllegalArgumentException("Null or invalid argument passed to XmlUtil.getElement()");
        NodeList lst = root.getChildNodes();
        int size = lst.getLength();
        name = localName(name);
        for (int i = 0; i < size; i++) {
            Node node = lst.item(i);
            if (node.getNodeType() == Node.ELEMENT_NODE) {
                String nodeName = localName(node);
                if (name.equals(nodeName))
                    return (Element) node;
            }
        }
        return null;
    }

    /**
     * Get the local name of a node (that may have a prefix). For example <code>localName( "xsd:string" )</code> will
     * return <code>"string"</code>
     * 
     * @param name A node name (normally a DOM Element).
     * @return The local part of the name.
     */
    public static String localName(String name) {
        if (name == null || name.length() <= 0)
            return name;
        int p = name.indexOf(':');
        if (p < 0 || p + 1 >= name.length())
            return name;
        return name.substring(p + 1);
    }

    /**
     * Get the local name of a node (that may have a prefix).
     * 
     * @param name The node (normally a DOM Element).
     * @return The local part of the name.
     */
    public static String localName(Node node) {
        if (node == null)
            return null;
        String name = node.getLocalName();
        if (name == null || name.length() <= 0)
            return localName(node.getNodeName());
        return name;
    }
}