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

/**
 * 
 * GetUsersAction is a Struts action to search for users based on search
 * criteria such as last name or email, and load the matching users' data.
 *  
 * @author Alexander Yap
 */
public final class GetUsersAction extends AbstractAdminAction
{
	protected ActionForward doPerform(
		ActionMapping mapping, ActionForm form,
		HttpServletRequest request, HttpServletResponse response,
		HttpSession session) throws Exception
	{
		Logger logger = CyberTesterUtils.getLogger();
		String searchEmail = request.getParameter(AdminConstants.SEARCH_EMAIL_KEY);
		String searchLastName = request.getParameter(AdminConstants.SEARCH_LAST_NAME_KEY);
		boolean searchByEmail = (searchEmail!=null) && (searchEmail.trim().length()>0) ;
		boolean searchByLastName = (searchLastName!=null) && (searchLastName.trim().length()>0);
		request.setAttribute(AdminConstants.SEARCH_EMAIL_KEY,"");
		request.setAttribute(AdminConstants.SEARCH_LAST_NAME_KEY,"");
		
		UserData[] userList = null;
		if (searchByEmail || searchByLastName)
		{
			try
			{
				UserManagerHome uMgrHome = CyberTesterUtils.getUserManagerHome();
				UserManager userMgr = (UserManager)uMgrHome.create();
				if (searchByEmail)
				{
					logger.log( Level.FINE, "Searching users by email "+searchEmail);
					userList = userMgr.searchUsersByEmail(searchEmail);
					request.setAttribute(AdminConstants.SEARCH_EMAIL_KEY,searchEmail);
				}
				else if (searchByLastName)
				{
					logger.log( Level.FINE, "Searching users by lastName "+searchLastName);
					userList = userMgr.searchUsersByLastName(searchLastName);
					request.setAttribute(AdminConstants.SEARCH_LAST_NAME_KEY,searchLastName);
				}
			}
			catch (Exception ex)
			{
				logger.log( Level.WARNING, "Error searching users.", ex);
			}
		}
		
		if (userList==null)
		{
			userList = new UserData[0];
		}
		
		request.setAttribute( AdminConstants.USER_LIST_KEY, userList );
			
		return mapping.findForward(Constants.SUCCESS);
	}
	
}