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package com.simpligility.maven.plugins.android.common;

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

/**
 * Yet another helper class for dealing with XML.
 */
public class XmlHelper
{

    public static void removeDirectChildren( Node parent )
    {
        NodeList childNodes = parent.getChildNodes();
        while ( childNodes.getLength() > 0 )
        {
            parent.removeChild( childNodes.item( 0 ) );
        }
    }

    public static Element getOrCreateElement( Document doc, Element manifestElement, String elementName )
    {
        NodeList nodeList = manifestElement.getElementsByTagName( elementName );
        Element element = null;
        if ( nodeList.getLength() == 0 )
        {
            element = doc.createElement( elementName );
            manifestElement.appendChild( element );
        }
        else
        {
            element = ( Element ) nodeList.item( 0 );
        }
        return element;
    }
}