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/*
 * Copyright 2003 Draagon Software LLC. All Rights Reserved.
 *
 * This software is the proprietary information of Draagon Software LLC.
 * Use is subject to license terms.
 */
package com.draagon.util.xml;

import java.io.IOException;
import java.io.InputStream;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import org.w3c.dom.Document;

/**
 * Meta Class loader for XML files
 */
public class XMLFileReader {

    private static Log log = LogFactory.getLog(XMLFileReader.class);

    /**
     * Loads all the classes specified in the Filename
     */
    public static Document loadFromStream(InputStream is) throws IOException {
        // See if we can even use this builder
        try {
            DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
            dbf.setValidating(false);
            DocumentBuilder db = dbf.newDocumentBuilder();

            return db.parse(is);
        } 
        catch (IOException e) {
            throw e; 
        } 
        catch (Exception e) {
            log.error( "Unable to load XML inputstream: " + e.getMessage(), e );
            throw new IOException(e.toString());
        }
    }
}