java/alt2xml-cli/src/cz/frantovo/alt2xml/cli/CLI.java
author František Kučera <franta-hg@frantovo.cz>
Sat, 07 Jun 2014 21:57:50 +0200
changeset 31 c9f1e497132e
parent 30 f696e73de225
child 39 a5020340362b
permissions -rw-r--r--
Our cz.frantovo.alt2xml.ParserFactory will not be hardcoded – will be set over the system property: javax.xml.parsers.SAXParserFactory
so we can use alt2xml CLI with just standard SAX parser and enjoy it for pure XML as a framework with output modules
     1 /**
     2  * Alt2XML
     3  * Copyright © 2014 František Kučera (frantovo.cz)
     4  *
     5  * This program is free software: you can redistribute it and/or modify
     6  * it under the terms of the GNU General Public License as published by
     7  * the Free Software Foundation, either version 3 of the License, or
     8  * (at your option) any later version.
     9  *
    10  * This program is distributed in the hope that it will be useful,
    11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
    12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    13  * GNU General Public License for more details.
    14  *
    15  * You should have received a copy of the GNU General Public License
    16  * along with this program. If not, see <http://www.gnu.org/licenses/>.
    17  */
    18 package cz.frantovo.alt2xml.cli;
    19 
    20 import java.io.File;
    21 import java.io.OutputStream;
    22 import java.util.Arrays;
    23 import java.util.logging.Level;
    24 import java.util.logging.Logger;
    25 import javax.xml.parsers.SAXParser;
    26 import javax.xml.parsers.SAXParserFactory;
    27 import javax.xml.stream.XMLOutputFactory;
    28 import javax.xml.stream.XMLStreamWriter;
    29 import org.xml.sax.helpers.DefaultHandler;
    30 
    31 /**
    32  *
    33  * @author Ing. František Kučera (frantovo.cz)
    34  */
    35 public class CLI {
    36 
    37 	private static final Logger log = Logger.getLogger(CLI.class.getName());
    38 
    39 	public static void main(String[] args) {
    40 
    41 		try {
    42 			File vstup = new File(args[0]);
    43 			OutputStream výstup = System.out;
    44 
    45 			/**
    46 			 * Serializujeme data do XML.
    47 			 * To normálně vůbec není potřeba – data se do tvaru proudu obsahujícího ostré závorky
    48 			 * vůbec nedostanou – zpracováváme události (volání javovských metod – začátky a konce
    49 			 * elementů atd.)
    50 			 * a z nich např. deserializujeme nějaké naše objekty, provádíme nějaké akce, nebo třeba
    51 			 * stavíme DOM.
    52 			 */
    53 			XMLOutputFactory xmlOutputFactory = XMLOutputFactory.newFactory();
    54 			XMLStreamWriter w = xmlOutputFactory.createXMLStreamWriter(výstup);
    55 			DefaultHandler h = new EchoContentHandler(w);
    56 
    57 			SAXParserFactory t = SAXParserFactory.newInstance();
    58 			SAXParser p = t.newSAXParser();
    59 			p.parse(vstup, h);
    60 		} catch (Exception e) {
    61 			log.log(Level.SEVERE, "Error during processing: " + Arrays.toString(args), e);
    62 		}
    63 
    64 	}
    65 }