package com.epam.wilma.message.search.engine.bootstrap.helper;
/*==========================================================================
Copyright 2013-2017 EPAM Systems
This file is part of Wilma.
Wilma 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.
Wilma 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 Wilma. If not, see <http://www.gnu.org/licenses/>.
===========================================================================*/
import org.springframework.beans.factory.BeanCreationException;
import com.epam.wilma.message.search.domain.exception.SystemException;
/**
* Class for selecting {@link SystemException} from exception causes to be able to get a user-readable exception message.
* @author Tamas_Bihari
*
*/
public class SystemExceptionSelector {
/**
* Selecting {@link SystemException} from {@link BeanCreationException} causes if exists to be able to return with user-readable exception message.
* @param e is the catched exception
* @return with {@link SystemException} if causes contains {@link SystemException} else null
*/
public SystemException getSystemException(final BeanCreationException e) {
SystemException result = null;
if (e.getMostSpecificCause() != null) {
Throwable ex = e;
boolean found = false;
while (ex.getCause() != null && !found) {
if (ex.getCause() instanceof SystemException) {
found = true;
result = (SystemException) ex.getCause();
}
ex = ex.getCause();
}
}
return result;
}
}