/**
 * This file is part of the ReTeX library - https://github.com/himamis/ReTeX
 *
 * Copyright (C) 2015 Balazs Bencze
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or (at
 * your option) any later version.
 *
 * This program 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
 * General Public License for more details.
 *
 * A copy of the GNU General Public License can be found in the file
 * LICENSE.txt provided with the source distribution of this program (see
 * the META-INF directory in the source jar). This license can also be
 * found on the GNU website at http://www.gnu.org/licenses/gpl.html.
 *
 * If you did not receive a copy of the GNU General Public License along
 * with this program, contact the lead developer, or write to the Free
 * Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301, USA.
 *
 * Linking this library statically or dynamically with other modules 
 * is making a combined work based on this library. Thus, the terms 
 * and conditions of the GNU General Public License cover the whole 
 * combination.
 * 
 * As a special exception, the copyright holders of this library give you 
 * permission to link this library with independent modules to produce 
 * an executable, regardless of the license terms of these independent 
 * modules, and to copy and distribute the resulting executable under terms 
 * of your choice, provided that you also meet, for each linked independent 
 * module, the terms and conditions of the license of that module. 
 * An independent module is a module which is not derived from or based 
 * on this library. If you modify this library, you may extend this exception 
 * to your version of the library, but you are not obliged to do so. 
 * If you do not wish to do so, delete this exception statement from your 
 * version.
 * 
 */
package com.himamis.retex.renderer.desktop.parser;

import java.io.InputStream;

import javax.xml.parsers.DocumentBuilderFactory;

import com.himamis.retex.renderer.share.exception.ResourceParseException;
import com.himamis.retex.renderer.share.platform.parser.Document;
import com.himamis.retex.renderer.share.platform.parser.Parser;

public class ParserD implements Parser {

	private DocumentBuilderFactory factory;

	public ParserD() {
		factory = DocumentBuilderFactory.newInstance();
	}

	@Override
	public Document parse(Object input) throws ResourceParseException {
		// On the desktop platform, the input is an InputSource object
		// Please refer to the ResourceLoaderD class
		InputStream is = (InputStream) input;
		org.w3c.dom.Document document = tryParse(is);
		return new DocumentD(document);
	}

	private org.w3c.dom.Document tryParse(InputStream is) throws ResourceParseException {
		try {
			return factory.newDocumentBuilder().parse(is);
		} catch (Exception ex) {
			ResourceParseException rpe = new ResourceParseException(
					"Could not parse resource", ex);
			throw rpe;
		}
	}

	@Override
	public void setIgnoringElementContentWhitespace(boolean whitespace) {
		factory.setIgnoringElementContentWhitespace(whitespace);
	}

	@Override
	public void setIgnoringComments(boolean ignoreComments) {
		factory.setIgnoringComments(ignoreComments);
	}
}