org.mycore.common.xml.MCRXMLParserErrorHandler Maven / Gradle / Ivy
/*
* This file is part of *** M y C o R e ***
* See http://www.mycore.de/ for details.
*
* MyCoRe is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* MyCoRe 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 MyCoRe. If not, see .
*/
package org.mycore.common.xml;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.xml.sax.ErrorHandler;
import org.xml.sax.SAXParseException;
/**
* Handles errors during XML parsing.
*
* @author Frank L\u00FCtzenkirchen
*/
public class MCRXMLParserErrorHandler implements ErrorHandler {
private static final Logger LOGGER = LogManager.getLogger(MCRXMLParserErrorHandler.class);
protected boolean silent;
public MCRXMLParserErrorHandler() {
this(false);
}
public MCRXMLParserErrorHandler(boolean silent) {
this.silent = silent;
}
/**
* Handles parser warnings
*/
public void warning(SAXParseException ex) {
if (!silent) {
LOGGER.warn(getSAXErrorMessage(ex), ex);
}
}
/**
* Handles parse errors
*/
public void error(SAXParseException ex) {
if (!silent) {
LOGGER.error(getSAXErrorMessage(ex), ex);
}
throw new RuntimeException(ex);
}
/**
* Handles fatal parse errors
*/
public void fatalError(SAXParseException ex) {
if (!silent) {
LOGGER.fatal(getSAXErrorMessage(ex));
}
throw new RuntimeException(ex);
}
/**
* Returns a text indicating at which line and column the error occured.
*
* @param ex the SAXParseException exception
* @return the location string
*/
public static String getSAXErrorMessage(SAXParseException ex) {
StringBuilder str = new StringBuilder();
String systemId = ex.getSystemId();
if (systemId != null) {
int index = systemId.lastIndexOf('/');
if (index != -1) {
systemId = systemId.substring(index + 1);
}
str.append(systemId).append(": ");
}
str.append("line ").append(ex.getLineNumber());
str.append(", column ").append(ex.getColumnNumber());
str.append(", ");
str.append(ex.getLocalizedMessage());
return str.toString();
}
}