package de.sub.goobi.helper.servletfilter;
/**
* This file is part of the Goobi Application - a Workflow tool for the support of mass digitization.
*
* Visit the websites for more information.
* - http://www.goobi.org
* - http://launchpad.net/goobi-production
* - http://gdz.sub.uni-goettingen.de
* - http://www.intranda.com
* - http://digiverso.com
*
* This program 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 2 of the License, or (at your option) any later version.
*
* 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, write to the Free Software Foundation, Inc., 59
* Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Linking this library statically or dynamically with other modules is making a combined work based on this library. Thus, the terms and conditions
* of the GNU General Public License cover the whole combination. As a special exception, the copyright holders of this library give you permission to
* link this library with independent modules to produce an executable, regardless of the license terms of these independent modules, and to copy and
* distribute the resulting executable under terms of your choice, provided that you also meet, for each linked independent module, the terms and
* conditions of the license of that module. An independent module is a module which is not derived from or based on this library. If you modify this
* library, you may extend this exception to your version of the library, but you are not obliged to do so. If you do not wish to do so, delete this
* exception statement from your version.
*/
import java.io.IOException;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import org.hibernate.Session;
import de.sub.goobi.helper.exceptions.GUIExceptionWrapper;
import de.sub.goobi.persistence.HibernateSessionLong;
// TODO: Previous Hibernate-Filter for old manual Hibernate-Session-Management, old version, reactivated, because
// de.sub.goobi.Persistence.HibernateSessionConversationFilter does not work like it should
public class HibernateSessionFilter2 implements Filter {
@Override
public void init(FilterConfig filterConfig) throws ServletException {
}
/*===============================================================*/
@Override
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
HttpServletRequest myRequest = (HttpServletRequest) request;
HibernateSessionLong hsl = null;
Session session = null;
/* --------------------------------
* die Hibernate-Session connecten
* --------------------------------*/
// das Managed Bean aus der Session holen
hsl = (HibernateSessionLong) myRequest.getSession().getAttribute("HibernateSessionLong");
// wenn das Managed Bean bereits in der Http-Session war,
// dann daraus die Hibernate-Session ermitteln
if (hsl != null) {
session = hsl.getSession();
}
if (session != null && !session.isConnected()) {
}
try {
chain.doFilter(request, response);
} catch (Exception e) {
throw new ServletException(new GUIExceptionWrapper("Unexpected Error.", e));
} finally {
/* --------------------------------
* die Hibernate-Session von der Datenbank trennen
* --------------------------------*/
// das Managed Bean aus der Session holen
hsl = (HibernateSessionLong) myRequest.getSession().getAttribute("HibernateSessionLong");
// wenn das Managed Bean bereits in der Http-Session war,
// dann daraus die Hibernate-Session ermitteln
if (hsl != null) {
session = hsl.getSession();
// gibt es eine Hibernate-Session und ist diese mit der DB verbunden,
// dann wird diese jetzt getrennt
if (session != null && session.isConnected()) {
session.disconnect();
}
}
}
}
/*===============================================================*/
/**
*/
@Override
public void destroy() {
// Nothing necessary
}
}