/**
 * @author Marcel Turcotte (turcotte@site.uottawa.ca)
 */

import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.ParserConfigurationException;

import org.w3c.dom.Document;
import org.w3c.dom.NodeList;

import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;
import org.xml.sax.ErrorHandler;

import java.io.File;
import java.io.IOException;

public class Validator {

    static public void main( String args[] )
	throws ParserConfigurationException, SAXException, IOException {

	if ( args.length != 1 ) {
	    System.err.println( "Usage: Java Validator file.xml" );
	    System.exit( 1 );
	}

	DocumentBuilderFactory docBuilderFactory = DocumentBuilderFactory.newInstance();
	docBuilderFactory.setValidating( true );
	DocumentBuilder parser = docBuilderFactory.newDocumentBuilder();

	parser.setErrorHandler( new ErrorHandler() {

		public void error( SAXParseException exception ) {
		    System.out.println( "ERROR :: " + exception );
		}

		public void fatalError( SAXParseException exception ) {
		    System.out.println( "FATAL ERROR :: " + exception );
		}

		public void warning( SAXParseException exception ) {
		    System.out.println( "WARNING :: " + exception );
		}

	    });
            
	Document document = parser.parse( new File( args[ 0 ] ) );
    }
}