Java tutorial
/* * Copyright 2015 Garret Leotta, Jonathan Lynch, Joseph Mandarino, * Michael Yeung * * This file is part of GG Testing Center Scheduler. * GG Testing Center Scheduler 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 3 of the * License, or (at your option) any later version. * * GG Testing Center Scheduler 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 GG Testing Center Scheduler. If not, see http://www.gnu.org/licenses/. */ package com.gigglinggnus.controllers; import com.gigglinggnus.testingcenter.Course; import java.io.File; import java.io.IOException; import java.util.List; import java.util.ArrayList; import java.util.Collections; import java.util.stream.Collectors; import java.time.Duration; import java.time.Instant; import java.time.Clock; import java.time.ZoneId; import java.time.LocalDateTime; import javax.persistence.Persistence; import javax.persistence.EntityManager; import javax.persistence.EntityManagerFactory; import javax.persistence.TypedQuery; import javax.persistence.NoResultException; import javax.servlet.ServletException; import javax.servlet.RequestDispatcher; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.json.JSONObject; import org.json.JSONArray; import com.gigglinggnus.testingcenter.Appointment; import com.gigglinggnus.testingcenter.Term; import com.gigglinggnus.testingcenter.User; import com.gigglinggnus.testingcenter.Exam; import com.gigglinggnus.testingcenter.ExamStatus; public class AdminViewAppointmentsController extends HttpServlet { public AdminViewAppointmentsController() { super(); } @Override protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { EntityManager em = (EntityManager) request.getSession().getAttribute("em"); Clock clk = (Clock) (request.getSession().getAttribute("clock")); RequestDispatcher rd = request.getRequestDispatcher("/admin/view-apmts.jsp"); rd.forward(request, response); } /** * * @param request servlet request * @param response servlet response * @throws ServletException if a servlet-specific error occurs * @throws IOException if an I/O error occurs */ @Override protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { EntityManager em = (EntityManager) request.getSession().getAttribute("em"); Clock clk = (Clock) (request.getSession().getAttribute("clock")); String userId = request.getParameter("username"); User user = em.find(User.class, userId); List<Appointment> appointments = user.getAppointments(); request.setAttribute("appointments", appointments); RequestDispatcher rd = request.getRequestDispatcher("/admin/view-apmts.jsp"); rd.forward(request, response); } }