de.fhg.fokus.hss.action.IfcDeleteAction.java Source code

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Here is the source code for de.fhg.fokus.hss.action.IfcDeleteAction.java

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/*
 * $Id$
 *
 * Copyright (C) 2004-2006 FhG Fokus
 *
 * This file is part of Open IMS Core - an open source IMS CSCFs & HSS
 * implementation
 *
 * Open IMS Core 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.
 *
 * For a license to use the Open IMS Core software under conditions
 * other than those described here, or to purchase support for this
 * software, please contact Fraunhofer FOKUS by e-mail at the following
 * addresses:
 *     info@open-ims.org
 *
 * Open IMS Core 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.
 *
 * It has to be noted that this Open Source IMS Core System is not
 * intended to become or act as a product in a commercial context! Its
 * sole purpose is to provide an IMS core reference implementation for
 * IMS technology testing and IMS application prototyping for research
 * purposes, typically performed in IMS test-beds.
 *
 * Users of the Open Source IMS Core System have to be aware that IMS
 * technology may be subject of patents and licence terms, as being
 * specified within the various IMS-related IETF, ITU-T, ETSI, and 3GPP
 * standards. Thus all Open IMS Core users have to take notice of this
 * fact and have to agree to check out carefully before installing,
 * using and extending the Open Source IMS Core System, if related
 * patents and licenses may become applicable to the intended usage
 * context. 
 *
 * 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  
 * 
 */
package de.fhg.fokus.hss.action;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.log4j.Logger;
import org.apache.struts.Globals;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionMessage;
import org.apache.struts.action.ActionMessages;
import org.hibernate.LockMode;
import org.hibernate.exception.ConstraintViolationException;

import de.fhg.fokus.hss.form.IfcForm;
import de.fhg.fokus.hss.model.Ifc;
import de.fhg.fokus.hss.util.HibernateUtil;

/**
 * Delete a IFC.
 * 
 * @author Andre Charton (dev -at- open-ims dot org)
 */
public class IfcDeleteAction extends HssAction {
    private static final Logger LOGGER = Logger.getLogger(IfcDeleteAction.class);

    public ActionForward execute(ActionMapping mapping, ActionForm actionForm, HttpServletRequest request,
            HttpServletResponse reponse) throws Exception {

        LOGGER.debug("entering");

        ActionForward forward = null;
        IfcForm form = (IfcForm) actionForm;
        LOGGER.debug(form);

        try {
            Integer primaryKey = form.getPrimaryKey();

            HibernateUtil.beginTransaction();
            Ifc ifc = (Ifc) HibernateUtil.getCurrentSession().load(Ifc.class, primaryKey, LockMode.READ);
            HibernateUtil.getCurrentSession().delete(ifc);
            HibernateUtil.commitTransaction();

            forward = mapping.findForward(FORWARD_SUCCESS);
        } catch (ConstraintViolationException e) {
            LOGGER.debug(this, e);

            ActionMessages actionMessages = new ActionMessages();
            actionMessages.add(Globals.MESSAGE_KEY, new ActionMessage("error.constraint"));
            saveMessages(request, actionMessages);
            forward = mapping.findForward(FORWARD_FAILURE);
        } finally {
            HibernateUtil.closeSession();
        }

        if (LOGGER.isDebugEnabled()) {
            LOGGER.debug(forward);
            LOGGER.debug("exiting");
        }
        return forward;
    }
}