/*
 * @(#)$Id: ReportErrorHandler.java,v 1.12 2001/08/16 02:45:07 Bear Exp $
 *
 * Copyright 2001 Sun Microsystems, Inc. All Rights Reserved.
 * 
 * This software is the proprietary information of Sun Microsystems, Inc.  
 * Use is subject to license terms.
 * 
 */
package com.sun.msv.driver.textui;

import com.sun.msv.verifier.ValidityViolation;
import com.sun.msv.verifier.ValidationUnrecoverableException;
import org.xml.sax.ErrorHandler;
import org.xml.sax.SAXParseException;
import org.xml.sax.SAXException;

/**
 * {@link VerificationErrorHandler} that reports all errors and warnings.
 * 
 * SAX parse errors are also handled.
 * 
 * @author <a href="mailto:kohsuke.kawaguchi@eng.sun.com">Kohsuke KAWAGUCHI</a>
 */
public class ReportErrorHandler implements ErrorHandler {
	
	private int counter = 0;
	public boolean hadError = false;
	
	public void error( SAXParseException e ) throws SAXException {
		hadError = true;
		countCheck(e);
		printSAXParseException( e, MSG_ERROR );
	}
	
	public void fatalError( SAXParseException e ) throws SAXException {
		hadError = true;
		printSAXParseException( e, MSG_FATAL );
		throw new ValidationUnrecoverableException(e);
	}
	
	public void warning( SAXParseException e ) {
		printSAXParseException( e, MSG_WARNING );
	}
	
	protected static void printSAXParseException( SAXParseException spe, String prop ) {
		System.out.println(
			Driver.localize( prop, new Object[]{
				new Integer(spe.getLineNumber()), 
				new Integer(spe.getColumnNumber()),
				spe.getSystemId(),
				spe.getLocalizedMessage()} ) );
	}
	
	private void print( ValidityViolation vv, String prop ) {
		System.out.println(
			Driver.localize( prop, new Object[]{
				new Integer(vv.getLineNumber()), 
				new Integer(vv.getColumnNumber()),
				vv.getSystemId(),
				vv.getMessage()} ) );
	}
	
	private void countCheck( SAXParseException e )
		throws ValidationUnrecoverableException	{
		if( counter++ < 20 )	return;
		
		System.out.println( Driver.localize(MSG_TOO_MANY_ERRORS) );
		throw new ValidationUnrecoverableException(e);
	}
	
	public static final String MSG_TOO_MANY_ERRORS = //arg:1
		"ReportErrorHandler.TooManyErrors";
	public static final String MSG_ERROR = // arg:4
		"ReportErrorHandler.Error";
	public static final String MSG_WARNING = // arg:4
		"ReportErrorHandler.Warning";
	public static final String MSG_FATAL = // arg:4
		"ReportErrorHandler.Fatal";
}