edituseraction.java

老外的在线考试

/*
 * CyberTester - J2EE Web application for creating, delivering and managing tests/exams/surveys. 
 * Copyright (C) 2003 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.http.*;
import org.apache.struts.action.*;
import com.cyberdemia.user.*;
import com.cyberdemia.cybertester.*;
import com.cyberdemia.school.*;

import java.util.logging.*;
import com.cyberdemia.cybertester.admin.*;

/**
 * 
 * EditUserAction is a Struts action to load a user's data for the user editor page.
 *  
 * @author Alexander Yap
 */
public final class EditUserAction extends AbstractAdminAction
{
	protected ActionForward doPerform(
		ActionMapping mapping, ActionForm form,
		HttpServletRequest request, HttpServletResponse response,
		HttpSession session) throws Exception	
	{

		Logger logger = CyberTesterUtils.getLogger();
		String mode = request.getParameter(AdminConstants.MODE_KEY);
		if (mode==null)
		{
			mode = AdminConstants.EDITOR_NEW_MODE;
		}
		session.setAttribute(AdminConstants.MODE_KEY, mode);
		if (form==null)
		{
			form = new UserForm();
			if ("request".equals(mapping.getScope()))
				request.setAttribute(mapping.getAttribute(), form);
			else
				session.setAttribute(mapping.getAttribute(), form);
		}
		ActionErrors errors = new ActionErrors();
		UserForm userForm = (UserForm)form;
		// populate the form with data if editing existing question.
		if (AdminConstants.EDITOR_EDIT_MODE.equalsIgnoreCase(mode))
		{
			String userId = request.getParameter(AdminConstants.USER_ID_KEY);
			if ((userId!=null)&&(userId.length()>0))
			{
				try
				{
					UserManagerHome uMgrHome = CyberTesterUtils.getUserManagerHome();
					UserManager userMgr = (UserManager)uMgrHome.create();
					UserData user = userMgr.getUserData(userId);
					userForm.setTitle( user.getTitle() );
					userForm.setId( user.getId() );
					userForm.setEmail( user.getEmail() );
					userForm.setFirstName( user.getFirstName() );
					userForm.setLastName( user.getLastName() );
					userForm.setGroups( user.getGroups() );
					TestData[] userTestList = CyberTesterUtils.getTestsDataForUser(null, userId);
					TestData[] notUserTestList = CyberTesterUtils.getTestsDataForNotUser(null, userId);
					if ((userTestList!=null) && (notUserTestList!=null))
					{
						if (userTestList.length>0)
						{
							session.setAttribute(AdminConstants.USER_TEST_LIST_KEY, userTestList);
						}
						
						if (notUserTestList.length>0)
						{
							session.setAttribute(AdminConstants.NOT_USER_TEST_LIST_KEY, notUserTestList);
						}
					}
					else
					{
						errors.add(ActionErrors.GLOBAL_ERROR, new ActionError("error.getting.tests"));									
					}
										
				}
				catch (Exception ex)
				{
					logger.log( Level.SEVERE, "Error transferring User data to form.", ex);
					throw ex;
				}
			}
			else
			{
				userForm.reset(mapping,request);
			}
		}
		else
		{
			userForm.reset(mapping,request);
		}

		if (!errors.isEmpty())
		{
			saveErrors(request, errors);
		}
		// Set a transactional control token to prevent double posting
		saveToken(request);
		return (mapping.findForward(Constants.SUCCESS));
	}
}