Java tutorial
/** * File ./src/main/java/de/lemo/dms/connectors/moodle_2_7/HibernateUtil.java * Lemo-Data-Management-Server for learning analytics. * Copyright (C) 2015 * Leonard Kappe, Andreas Pursian, Sebastian Schwarzrock, Boris Wenzlaff * * 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 3 of the License, or * 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. If not, see <http://www.gnu.org/licenses/>. **/ /** * File ./main/java/de/lemo/dms/connectors/moodle_2_7/HibernateUtil.java * Date 2013-01-24 * Project Lemo Learning Analytics */ package de.lemo.dms.connectors.moodle_2_7; import java.util.HashMap; import java.util.Map.Entry; import org.hibernate.SessionFactory; import org.hibernate.cfg.Configuration; import com.google.common.collect.Maps; import de.lemo.dms.connectors.moodle_2_7.mapping.AssignGradesLMS; import de.lemo.dms.connectors.moodle_2_7.mapping.ChatLMS; import de.lemo.dms.connectors.moodle_2_7.mapping.ChatLogLMS; import de.lemo.dms.connectors.moodle_2_7.mapping.ContextLMS; import de.lemo.dms.connectors.moodle_2_7.mapping.CourseCategoriesLMS; import de.lemo.dms.connectors.moodle_2_7.mapping.CourseLMS; import de.lemo.dms.connectors.moodle_2_7.mapping.CourseModulesLMS; import de.lemo.dms.connectors.moodle_2_7.mapping.AssignLMS; import de.lemo.dms.connectors.moodle_2_7.mapping.EnrolLMS; import de.lemo.dms.connectors.moodle_2_7.mapping.ForumDiscussionsLMS; import de.lemo.dms.connectors.moodle_2_7.mapping.ForumLMS; import de.lemo.dms.connectors.moodle_2_7.mapping.ForumPostsLMS; import de.lemo.dms.connectors.moodle_2_7.mapping.GradeGradesLMS; import de.lemo.dms.connectors.moodle_2_7.mapping.GradeItemsLMS; import de.lemo.dms.connectors.moodle_2_7.mapping.GroupsLMS; import de.lemo.dms.connectors.moodle_2_7.mapping.GroupsMembersLMS; import de.lemo.dms.connectors.moodle_2_7.mapping.LogstoreStandardLogLMS; import de.lemo.dms.connectors.moodle_2_7.mapping.ModulesLMS; import de.lemo.dms.connectors.moodle_2_7.mapping.PageLMS; import de.lemo.dms.connectors.moodle_2_7.mapping.QuestionLMS; import de.lemo.dms.connectors.moodle_2_7.mapping.QuestionStatesLMS; import de.lemo.dms.connectors.moodle_2_7.mapping.QuizAttemptsLMS; import de.lemo.dms.connectors.moodle_2_7.mapping.QuizGradesLMS; import de.lemo.dms.connectors.moodle_2_7.mapping.QuizLMS; import de.lemo.dms.connectors.moodle_2_7.mapping.ResourceLMS; import de.lemo.dms.connectors.moodle_2_7.mapping.UrlLMS; import de.lemo.dms.connectors.moodle_2_7.mapping.RoleAssignmentsLMS; import de.lemo.dms.connectors.moodle_2_7.mapping.RoleLMS; import de.lemo.dms.connectors.moodle_2_7.mapping.ScormLMS; import de.lemo.dms.connectors.moodle_2_7.mapping.UserEnrolmentsLMS; import de.lemo.dms.connectors.moodle_2_7.mapping.UserLMS; import de.lemo.dms.connectors.moodle_2_7.mapping.WikiLMS; import de.lemo.dms.connectors.moodle_2_7.mapping.WikiPagesLMS; import de.lemo.dms.db.DBConfigObject; /** * Startup Hibernate and provide access to the singleton SessionFactory */ public final class HibernateUtil { private HibernateUtil() { } private static HashMap<DBConfigObject, SessionFactory> sessionFactories = Maps.newHashMap(); public static SessionFactory getSessionFactory(final DBConfigObject dbconfig) { SessionFactory sessionFactory = HibernateUtil.sessionFactories.get(dbconfig); if (sessionFactory == null) { sessionFactory = HibernateUtil.createSessionFactory(dbconfig); HibernateUtil.sessionFactories.put(dbconfig, sessionFactory); } return sessionFactory; } public static void closeSessionFactory(final DBConfigObject dbconfig) { final SessionFactory sessionFactory = HibernateUtil.sessionFactories.remove(dbconfig); if (sessionFactory != null) { sessionFactory.close(); } } private static SessionFactory createSessionFactory(final DBConfigObject dbconfig) { final Configuration cfg = new Configuration(); // add properties from files for (final Entry<String, String> entry : dbconfig.getProperties().entrySet()) { cfg.setProperty(entry.getKey(), entry.getValue()); } // Add mapping classes cfg.addAnnotatedClass(AssignLMS.class); cfg.addAnnotatedClass(EnrolLMS.class); cfg.addAnnotatedClass(UserEnrolmentsLMS.class); cfg.addAnnotatedClass(ModulesLMS.class); cfg.addAnnotatedClass(CourseModulesLMS.class); cfg.addAnnotatedClass(CourseLMS.class); cfg.addAnnotatedClass(ForumDiscussionsLMS.class); cfg.addAnnotatedClass(ForumPostsLMS.class); cfg.addAnnotatedClass(ForumLMS.class); cfg.addAnnotatedClass(GradeGradesLMS.class); cfg.addAnnotatedClass(GroupsMembersLMS.class); cfg.addAnnotatedClass(GroupsLMS.class); cfg.addAnnotatedClass(LogstoreStandardLogLMS.class); // cfg.addAnnotatedClass(QuestionStatesLMS.class); cfg.addAnnotatedClass(QuestionLMS.class); cfg.addAnnotatedClass(QuizGradesLMS.class); cfg.addAnnotatedClass(QuizLMS.class); cfg.addAnnotatedClass(QuizAttemptsLMS.class); cfg.addAnnotatedClass(WikiLMS.class); cfg.addAnnotatedClass(WikiPagesLMS.class); cfg.addAnnotatedClass(ResourceLMS.class); cfg.addAnnotatedClass(PageLMS.class); cfg.addAnnotatedClass(UrlLMS.class); cfg.addAnnotatedClass(UserLMS.class); cfg.addAnnotatedClass(RoleLMS.class); cfg.addAnnotatedClass(ContextLMS.class); cfg.addAnnotatedClass(RoleAssignmentsLMS.class); cfg.addAnnotatedClass(AssignGradesLMS.class); cfg.addAnnotatedClass(ScormLMS.class); cfg.addAnnotatedClass(GradeItemsLMS.class); cfg.addAnnotatedClass(ChatLMS.class); cfg.addAnnotatedClass(ChatLogLMS.class); cfg.addAnnotatedClass(CourseCategoriesLMS.class); return cfg.buildSessionFactory(); } }