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Demoiselle Signer Component to provides a engine for ICP-BRASIL signature policies.
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/*
 * Demoiselle Framework
 * Copyright (C) 2016 SERPRO
 * ----------------------------------------------------------------------------
 * This file is part of Demoiselle Framework.
 *
 * Demoiselle Framework is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License version 3
 * as published by the Free Software Foundation.
 *
 * 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.
 *
 * You should have received a copy of the GNU Lesser General Public License version 3
 * along with this program; if not,  see 
 * or write to the Free Software Foundation, Inc., 51 Franklin Street,
 * Fifth Floor, Boston, MA  02110-1301, USA.
 * ----------------------------------------------------------------------------
 * Este arquivo é parte do Framework Demoiselle.
 *
 * O Framework Demoiselle é um software livre; você pode redistribuí-lo e/ou
 * modificá-lo dentro dos termos da GNU LGPL versão 3 como publicada pela Fundação
 * do Software Livre (FSF).
 *
 * Este programa é distribuído na esperança que possa ser útil, mas SEM NENHUMA
 * GARANTIA; sem uma garantia implícita de ADEQUAÇÃO a qualquer MERCADO ou
 * APLICAÇÃO EM PARTICULAR. Veja a Licença Pública Geral GNU/LGPL em português
 * para maiores detalhes.
 *
 * Você deve ter recebido uma cópia da GNU LGPL versão 3, sob o título
 * "LICENCA.txt", junto com esse programa. Se não, acesse 
 * ou escreva para a Fundação do Software Livre (FSF) Inc.,
 * 51 Franklin St, Fifth Floor, Boston, MA 02111-1301, USA.
 */

package org.demoiselle.signer.policy.engine.util;

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

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.w3c.dom.Document;
import org.xml.sax.SAXException;

/**
 * FIXME goes to core in this architecture?
 */
public class XMLUtil {
	private static final Logger LOGGER = LoggerFactory.getLogger(XMLUtil.class);
	private static MessagesBundle policyMessagesBundle = new MessagesBundle("messages_policy");

	public static Document loadXMLDocument(InputStream parmIS) throws RuntimeException {

		DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();
		DocumentBuilder dBuilder = null;
		Document docReturn = null;
		try {
			dBuilder = dbFactory.newDocumentBuilder();
		} catch (ParserConfigurationException e) {
			LOGGER.error(policyMessagesBundle.getString("error.xml.parser.notfound", e.getMessage()));
			throw new RuntimeException(policyMessagesBundle.getString("error.xml.parser.notfound", e.getMessage()));
		}
		try {
			docReturn = dBuilder.parse(parmIS);
		} catch (SAXException e) {
			LOGGER.error(policyMessagesBundle.getString("error.xml.sax.exception", e.getMessage()));
			throw new RuntimeException(policyMessagesBundle.getString("error.xml.sax.exception", e.getMessage()));
		} catch (IOException e) {
			LOGGER.error(policyMessagesBundle.getString("error.xml.ioexception", e.getMessage()));
			throw new RuntimeException(policyMessagesBundle.getString("error.xml.ioexception", e.getMessage()));
		}
		return docReturn;
	}
}