/*
    * This file is part of ***  M y C o R e  ***
    * See http://www.mycore.de/ for details.
    *
    * MyCoRe 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.
    *
   * MyCoRe 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 MyCoRe.  If not, see <http://www.gnu.org/licenses/>.
   */
  
  package org.mycore.backend.jpa;
  
  import jakarta.persistence.EntityManager;
  import jakarta.persistence.EntityManagerFactory;
  import jakarta.persistence.PersistenceException;
  
  public class MCREntityManagerProvider {
  
      private static EntityManagerFactory factory;
  
      private static MCRSessionContext context;
  
      private static PersistenceException initException;
  
      public static EntityManagerFactory getEntityManagerFactory() {
          return factory;
      }
  
      public static EntityManager getCurrentEntityManager() {
          if (context == null && initException != null) {
              throw initException;
          }
          return context.getCurrentEntityManager();
      }
  
      static void init(EntityManagerFactory factory) {
          MCREntityManagerProvider.factory = factory;
          context = new MCRSessionContext(factory);
      }
  
      static void init(PersistenceException e) {
          initException = e;
      }
  
  }