/**

  * Alt2XML

  * Copyright © 2014 František Kučera (frantovo.cz)

  *

  * 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 3 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.

  *

  * You should have received a copy of the GNU General Public License

  * along with this program. If not, see <http://www.gnu.org/licenses/>.

  */

 package cz.frantovo.alt2xml.cli;

 import cz.frantovo.alt2xml.out.EchoContentHandler;

 import java.io.File;

 import java.io.OutputStream;

 import java.util.Arrays;

 import java.util.logging.Level;

 import java.util.logging.Logger;

 import javax.xml.parsers.SAXParser;

 import javax.xml.parsers.SAXParserFactory;

 import javax.xml.stream.XMLOutputFactory;

 import javax.xml.stream.XMLStreamWriter;

 import org.xml.sax.ext.LexicalHandler;

 import org.xml.sax.helpers.DefaultHandler;

 /**

  *

  * @author Ing. František Kučera (frantovo.cz)

  */

 public class CLI {

 	public static final String LEXICAL_HANDLER_PROPERTY = "http://xml.org/sax/properties/lexical-handler";

 	private static final Logger log = Logger.getLogger(CLI.class.getName());

 	public static void main(String[] args) {

 		try {

 			File vstup = new File(args[0]);

 			OutputStream výstup = System.out;

 			/**

 			 * Serializujeme data do XML.

 			 * To normálně vůbec není potřeba – data se do tvaru proudu obsahujícího ostré závorky

 			 * vůbec nedostanou – zpracováváme události (volání javovských metod – začátky a konce

 			 * elementů atd.)

 			 * a z nich např. deserializujeme nějaké naše objekty, provádíme nějaké akce, nebo třeba

 			 * stavíme DOM.

 			 */

 			XMLOutputFactory xmlOutputFactory = XMLOutputFactory.newFactory();

 			XMLStreamWriter w = xmlOutputFactory.createXMLStreamWriter(výstup);

 			DefaultHandler h = new EchoContentHandler(w);

 			SAXParserFactory t = SAXParserFactory.newInstance();

 			SAXParser p = t.newSAXParser();

 			if (h instanceof LexicalHandler

 					// TODO: add option/feature to disable LexicalHandler registration

 					&& false) {

 				try {

 					p.setProperty(LEXICAL_HANDLER_PROPERTY, h);

 				} catch (Exception e) {

 					log.log(Level.WARNING, "LexicalHandler registration exception:", e);

 					log.log(Level.WARNING,

 							"Tried to register the handler {0} as a LexicalHandler but LexicalHandlers are not supported by the parser {1}",

 							new Object[]{h, p});

 				}

 			}

 			p.parse(vstup, h);

 		} catch (Exception e) {

 			log.log(Level.SEVERE, "Error during processing: " + Arrays.toString(args), e);

 		}

 	}

 }