viewgroupaction.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
 *
 * 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 java.util.logging.Level;
import java.util.logging.Logger;

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

import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;

import com.cyberdemia.cybertester.Constants;
import com.cyberdemia.cybertester.CyberTesterUtils;
import com.cyberdemia.cybertester.admin.AbstractAdminAction;
import com.cyberdemia.cybertester.admin.AdminConstants;
import com.cyberdemia.school.IHierarchy;
import com.cyberdemia.school.SchoolUtils;
import com.cyberdemia.school.TestData;
import com.cyberdemia.user.GroupData;
import com.cyberdemia.user.GroupManager;
import com.cyberdemia.user.GroupManagerHome;

/**
 * ViewGroupAction is a Struts action to load a user group's data for the
 * group viewer page.
 * 
 * @author Alexander Yap
 * @version $Revision: 1.3 $ at $Date: 2004/06/10 23:36:09 $ by $Author: alexycyap $
 */
public class ViewGroupAction extends AbstractAdminAction 
{

	protected ActionForward doPerform(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response,
			HttpSession session) throws Exception 
	{
		Logger logger = CyberTesterUtils.getLogger();
        Integer groupId = CyberTesterUtils.getIntegerParameterOrRequestAttribute(request,AdminConstants.GROUP_ID_KEY);
		if (groupId==null)
		{
			throw new ServletException("Missing parameter "+AdminConstants.GROUP_ID_KEY);
		}
		
		GroupData groupData = null;
		try
		{
			GroupManagerHome gMgrHome = CyberTesterUtils.getGroupManagerHome();
			GroupManager groupMgr = (GroupManager)gMgrHome.create();
			groupData = groupMgr.getGroupData(groupId, true, false);
		}
		catch (Exception ex)
		{
			logger.log( Level.SEVERE, "Error getting Group data", ex);
			throw ex;
		}

		request.setAttribute( AdminConstants.GROUP_DATA_KEY, groupData );
		IHierarchy groupParentNode = SchoolUtils.getNodeFromHierarchyId(groupData.getParentId());
		request.setAttribute(AdminConstants.ASSOC_PARAM_PREFIX_KEY, AdminConstants.ASSOC_PARAM_PREFIX);
		TestData[] testList = CyberTesterUtils.getTestsData(groupData.getParentId(), true);
		request.setAttribute( AdminConstants.TEST_LIST_KEY, testList );
		
		return mapping.findForward(Constants.SUCCESS);
	}
}