/*
 * DSS - Digital Signature Services
 *
 * Copyright (C) 2013 European Commission, Directorate-General Internal Market and Services (DG MARKT), B-1049 Bruxelles/Brussel
 *
 * Developed by: 2013 ARHS Developments S.A. (rue Nicolas Bové 2B, L-1253 Luxembourg) http://www.arhs-developments.com
 *
 * This file is part of the "DSS - Digital Signature Services" project.
 *
 * "DSS - Digital Signature Services" is free software: you can redistribute it and/or modify it under the terms of
 * the GNU Lesser General Public License as published by the Free Software Foundation, either version 2.1 of the
 * License, or (at your option) any later version.
 *
 * DSS is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty
 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License along with
 * "DSS - Digital Signature Services".  If not, see <http://www.gnu.org/licenses/>.
 */

package eu.europa.ec.markt.dss.applet.util;

import java.io.InputStream;

import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMResult;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamSource;

import org.w3c.dom.Document;

import eu.europa.ec.markt.dss.validation102853.xml.XmlDom;

/**
 * TODO
 * <p/>
 * <p/>
 * DISCLAIMER: Project owner DG-MARKT.
 *
 * @author <a href="mailto:dgmarkt.Project-DSS@arhs-developments.com">ARHS Developments</a>
 * @version $Revision: 1016 $ - $Date: 2011-06-17 15:30:45 +0200 (Fri, 17 Jun 2011) $
 */
abstract class XsltConverter {

    /**
     * @param xmlDom the xmlDom representing the report
     * @return a DOM XHTML standalone document.
     */
    public Document renderAsHtml(XmlDom xmlDom) {

        TransformerFactory transformerFactory = TransformerFactory.newInstance();
        try {
            final InputStream xslStream = getXsltFileClasspathResource();
            Transformer transformer = transformerFactory.newTransformer(new StreamSource(xslStream));

            final DOMResult domResult = new DOMResult();
            final DOMSource xmlSource = new DOMSource(xmlDom.getRootElement().getOwnerDocument());

            transformer.transform(xmlSource, domResult);

            return (Document) domResult.getNode();
        } catch (TransformerException e) {
            throw new RuntimeException(e);
        }
    }

    abstract InputStream getXsltFileClasspathResource();
}