assocteststogroupaction.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 java.util.ArrayList;
import java.util.Enumeration;
import java.util.List;
import java.util.Locale;
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.Globals;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.util.MessageResources;

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.TestManager;
import com.cyberdemia.school.TestManagerHome;
import com.cyberdemia.user.GroupData;
import com.cyberdemia.user.GroupManager;
import com.cyberdemia.user.GroupManagerHome;
import com.cyberdemia.user.UserData;


/**
 * AssocTestsToGroupAction is a Struts action to associate one or more Tests
 * with all the users in a group.
 * 
 * @author Alexander Yap
 * @version $Revision: 1.1 $ at $Date: 2004/05/30 16:58:16 $ by $Author: alexycyap $
 */
public class AssocTestsToGroupAction 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);
		}
		request.setAttribute(AdminConstants.GROUP_ID_KEY, groupId);
        MessageResources resources = (MessageResources)request.getAttribute( Globals.MESSAGES_KEY );
        Locale userLocale = getSessionLocale(session);
        
		try
		{
			GroupManagerHome gMgrHome = CyberTesterUtils.getGroupManagerHome();
			GroupManager groupMgr = (GroupManager)gMgrHome.create();
			GroupData groupData = groupMgr.getGroupData(groupId, true, false);
			UserData[] userDataArr = groupData.getUsers();
			Integer[] userIds = new Integer[userDataArr.length];
			for (int u=0; u<userIds.length; u++)
			{
				userIds[u] = userDataArr[u].getId();
			}
			Enumeration pEnum = request.getParameterNames();
			List testIdToAddList = new ArrayList();
			while (pEnum.hasMoreElements())
			{
				String pName = (String)pEnum.nextElement();
				if (pName.startsWith(AdminConstants.ASSOC_PARAM_PREFIX) )
				{
					if ( Boolean.valueOf(request.getParameter(pName)).booleanValue() )
					{
                        Integer testId = CyberTesterUtils.convertToInteger(pName.substring(AdminConstants.ASSOC_PARAM_PREFIX.length()));
						if (testId!=null)
                        {
							testIdToAddList.add(testId);
                        }
					}
				}
			}		
			TestManagerHome testMgrHome = CyberTesterUtils.getTestManagerHome();
			TestManager testMgr = (TestManager)testMgrHome.create();
			int usersAddedTo = testMgr.addTestsToUsers((Integer[])testIdToAddList.toArray(new Integer[0]), userIds);
			String feedback = resources.getMessage(userLocale, "text.admin.groupview.assocTests.feedback", String.valueOf(usersAddedTo));
			request.setAttribute(Constants.ACTION_FEEDBACK_KEY, feedback);
		}
		catch (Exception ex)
		{
			logger.log( Level.SEVERE, "Error associating Tests to Group ID "+groupId, ex);
			throw ex;
		}
			
		return mapping.findForward(Constants.SUCCESS);
	}

}