XMLErrorHandler.java

/*
 * GovWay - A customizable API Gateway 
 * https://govway.org
 * 
 * Copyright (c) 2005-2025 Link.it srl (https://link.it). 
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 3, as published by
 * the Free Software Foundation.
 *
 * 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/>.
 *
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package org.openspcoop2.utils.xml;

import java.io.PrintStream;

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

/**
 * Classe utilizzabile per ottenere gli errori generati dal parser
 *
 *
 * @author Poli Andrea (apoli@link.it)
 * @author $Author$
 * @version $Rev$, $Date$
 */

public class XMLErrorHandler implements ErrorHandler {

    private boolean throwWarningException = true;
    private boolean throwErrorException = true;
    private boolean throwFatalErrorException = true;
    private boolean printStackTraceWarningException = false;
    private boolean printStackTraceErrorException = false;
    private boolean printStackTraceFatalErrorException = false;
    
    private PrintStream warningOutputStream = System.out;
    private PrintStream errorOutputStream = System.err;
    private PrintStream fatalErrorOutputStream = System.err;
    
    XMLErrorHandler(){}
    XMLErrorHandler(boolean throwWarningException,boolean throwErrorException,boolean throwFatalErrorException){
        this(throwWarningException,throwErrorException,throwFatalErrorException,false,false,false);
    }
    XMLErrorHandler(boolean throwWarningException,boolean throwErrorException,boolean throwFatalErrorException,
            boolean printStackTraceWarningException,boolean printStackTraceErrorException, boolean printStackTraceFatalErrorException){
        this.throwWarningException = throwWarningException;
        this.throwErrorException = throwErrorException;
        this.throwFatalErrorException = throwFatalErrorException;
        this.printStackTraceWarningException = printStackTraceWarningException;
        this.printStackTraceErrorException = printStackTraceErrorException;
        this.printStackTraceFatalErrorException = printStackTraceFatalErrorException;
    }
    
    @Override
    public void warning(SAXParseException exception) throws SAXException {
        if(this.printStackTraceWarningException){
            this.warningOutputStream.append("WARNING: "+exception.getMessage());
            exception.printStackTrace(this.warningOutputStream);
        }
        if(this.throwWarningException)
            throw exception;
    }

    @Override
    public void error(SAXParseException exception) throws SAXException {
        if(this.printStackTraceErrorException){
            this.errorOutputStream.append("ERROR: "+exception.getMessage());
            exception.printStackTrace(this.errorOutputStream);
        }
        if(this.throwErrorException)
            throw exception;
    }

    @Override
    public void fatalError(SAXParseException exception) throws SAXException {
        if(this.printStackTraceFatalErrorException){
            this.fatalErrorOutputStream.append("FATAL ERROR: "+exception.getMessage());
            exception.printStackTrace(this.fatalErrorOutputStream);
        }
        if(this.throwFatalErrorException)
            throw exception;
    }

}