deletegroupaction.java

老外的在线考试

/*
 * CyberTester - J2EE Web application for creating, delivering and managing tests/exams/surveys. 
 * Copyright (C) 2004 CyberDemia Research and Services Pty Ltd
 *
 * 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 (see the file COPYING); if not, write to the
 * Free Software Foundation, Inc.,
 * 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * See the COPYING file located in the top-level-directory of
 * the archive of this program for complete text of license.
 */
package com.cyberdemia.cybertester.admin.user;

import javax.servlet.*;
import javax.servlet.http.*;
import org.apache.struts.action.*;
import com.cyberdemia.user.*;
import com.cyberdemia.cybertester.*;
import com.cyberdemia.cybertester.admin.*;
import java.util.logging.*;

/**
 * DeleteGroupAction is a Struts action to delete an existing group.
 * 
 * @version $Revision: 1.2 $ at $Date: 2004/05/25 15:33:24 $ by $Author: alexycyap $
 * @author Alexander Yap
 */
public class DeleteGroupAction extends AbstractAdminAction
{

	protected ActionForward doPerform(
		ActionMapping mapping, ActionForm form,
		HttpServletRequest request, HttpServletResponse response,
		HttpSession session) throws Exception	
	{
		Logger logger = CyberTesterUtils.getLogger();
        Integer groupId = CyberTesterUtils.convertToInteger(request.getParameter(AdminConstants.GROUP_ID_KEY));
        if (groupId==null)
        {
            throw new ServletException("Missing parameter "+AdminConstants.GROUP_ID_KEY);
        }

        GroupManagerHome gMgrHome = CyberTesterUtils.getGroupManagerHome();
        GroupManager groupMgr = (GroupManager)gMgrHome.create();
		try
		{
			groupMgr.removeGroup(groupId);
		}
		catch (UserException uex)
		{
			logger.log( Level.WARNING, "Error removing Group "+groupId);
			ActionErrors errors = new ActionErrors();
			errors.add(ActionErrors.GLOBAL_ERROR, new ActionError("error.removing.group"));			
			saveErrors(request, errors);
		}
		return mapping.findForward(Constants.SUCCESS);
		
	}

}