java/alt2xml-cli/src/cz/frantovo/alt2xml/cli/CLI.java
author František Kučera <franta-hg@frantovo.cz>
Sat, 07 Jun 2014 20:32:44 +0200
changeset 30 f696e73de225
parent 28 f5e8eeffdfb5
child 31 c9f1e497132e
permissions -rw-r--r--
CLI: odchytávání výjimek
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/**
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 * Alt2XML
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 * Copyright © 2014 František Kučera (frantovo.cz)
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 *
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 * This program is free software: you can redistribute it and/or modify
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 * it under the terms of the GNU General Public License as published by
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 * the Free Software Foundation, either version 3 of the License, or
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 * (at your option) any later version.
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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 */
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package cz.frantovo.alt2xml.cli;
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import cz.frantovo.alt2xml.ParserFactory;
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import java.io.File;
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import java.io.OutputStream;
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import java.util.Arrays;
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import java.util.logging.Level;
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import java.util.logging.Logger;
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import javax.xml.parsers.SAXParser;
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import javax.xml.parsers.SAXParserFactory;
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import javax.xml.stream.XMLOutputFactory;
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import javax.xml.stream.XMLStreamWriter;
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import org.xml.sax.helpers.DefaultHandler;
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/**
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 *
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 * @author Ing. František Kučera (frantovo.cz)
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 */
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public class CLI {
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	private static final Logger log = Logger.getLogger(CLI.class.getName());
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	public static void main(String[] args) {
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		try {
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			File vstup = new File(args[0]);
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			OutputStream výstup = System.out;
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			/**
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			 * Serializujeme data do XML.
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			 * To normálně vůbec není potřeba – data se do tvaru proudu obsahujícího ostré závorky
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			 * vůbec nedostanou – zpracováváme události (volání javovských metod – začátky a konce
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			 * elementů atd.)
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			 * a z nich např. deserializujeme nějaké naše objekty, provádíme nějaké akce, nebo třeba
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			 * stavíme DOM.
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			 */
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			XMLOutputFactory xmlOutputFactory = XMLOutputFactory.newFactory();
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			XMLStreamWriter w = xmlOutputFactory.createXMLStreamWriter(výstup);
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			DefaultHandler h = new EchoContentHandler(w);
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			SAXParserFactory t = SAXParserFactory.newInstance(ParserFactory.class.getName(), null);
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			//SAXParserFactory t = SAXParserFactory.newInstance();
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			SAXParser p = t.newSAXParser();
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			p.parse(vstup, h);
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		} catch (Exception e) {
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			log.log(Level.SEVERE, "Error during processing: " + Arrays.toString(args), e);
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		}
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	}
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}