gettestsaction.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.testee.test;

import javax.servlet.http.*;
import org.apache.struts.action.*;
import com.cyberdemia.school.*;
import com.cyberdemia.cybertester.*;
import com.cyberdemia.cybertester.testee.TesteeConstants;
import java.util.logging.*;
import java.util.ArrayList;

/**
 * 
 * GetTestsAction is a Struts action to load data of tests that have 
 * been assigned to the user.
 *  
 * @version $Revision: 1.1 $ at $Date: 2004/03/15 09:48:53 $ by $Author: alexycyap $
 * @author Alexander Yap
 */
public final class GetTestsAction extends AbstractUserAction
{
	protected ActionForward doPerform(
		ActionMapping mapping, ActionForm form,
		HttpServletRequest request, HttpServletResponse response,
		HttpSession session) throws Exception	
	{
		Logger logger = CyberTesterUtils.getLogger();
		Integer userId = (Integer)session.getAttribute(Constants.USER_ID_KEY);
		String mode = CyberTesterUtils.getParameterOrRequestAttribute(request, TesteeConstants.MODE_KEY );
		boolean reviewMode = Constants.FORWARD_REVIEW.equalsIgnoreCase(mode);

		try
		{
			TestManagerHome tMgrHome = CyberTesterUtils.getTestManagerHome();
			TestManager testMgr = (TestManager)tMgrHome.create();
			TestData[] testList = testMgr.getTestsForUser(null, userId);
			ArrayList stTestList = new ArrayList();
			for (int tidx=0; tidx<testList.length; tidx++)
			{
				TestData testData = testList[tidx];
				// If for any reason we cannot retrieve data for the test, just skip it.
				if (testData!=null)
				{
					ScoreData scoreData = testMgr.getTestScoreForUser(testData.getId(), userId, false);
					if (reviewMode)
					{	// Getting taken tests for review
						if (scoreData.isTestTaken())
						{
							stTestList.add( new TesteeTestData( testData, scoreData ) );
						}
					}
					else
					{	// Getting new tests for user to take test
						if (!scoreData.isTestTaken())
						{
							stTestList.add( new TesteeTestData( testData, scoreData ) );
						}
					}
				}
			}
			request.setAttribute( TesteeConstants.TEST_LIST_KEY, stTestList );
		}
		catch (Exception ex)
		{
			logger.log(Level.SEVERE, "Error getting tests for user "+userId, ex);
			throw ex;
		}
		
		if (reviewMode)
		{
			request.setAttribute(TesteeConstants.MODE_KEY, Constants.FORWARD_REVIEW );
			return mapping.findForward(Constants.FORWARD_REVIEW);
		}

		request.setAttribute(TesteeConstants.MODE_KEY, Constants.FORWARD_TEST );
		return mapping.findForward(Constants.FORWARD_TEST);
	}

}