/*
 * Copyright (C) 2000 - 2024 Silverpeas
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * As a special exception to the terms and conditions of version 3.0 of
 * the GPL, you may redistribute this Program in connection with Free/Libre
 * Open Source Software ("FLOSS") applications as described in Silverpeas's
 * FLOSS exception.  You should have received a copy of the text describing
 * the FLOSS exception, and it is also available here:
 * "https://www.silverpeas.org/legal/floss_exception.html"
 *
 * 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
package org.silverpeas.core.notification.user.server.channel.silvermail;

import org.silverpeas.core.persistence.datasource.model.identifier.UniqueLongIdentifier;
import org.silverpeas.core.util.ServiceProvider;

import javax.inject.Singleton;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import java.util.List;

/**
 * @author mmoquillon
 */
@Singleton
public class SILVERMAILMessageBeanFinder {

  @PersistenceContext
  private EntityManager entityManager;

  private static SILVERMAILMessageBeanFinder getInstance() {
    return ServiceProvider.getService(SILVERMAILMessageBeanFinder.class);
  }

  public static List<SILVERMAILMessageBean> getSomeByQuery(String query) {
    return getInstance().entityManager.createQuery(query, SILVERMAILMessageBean.class).getResultList();
  }

  public static SILVERMAILMessageBean getById(long id) {
    return getInstance().entityManager.find(SILVERMAILMessageBean.class, UniqueLongIdentifier.from(id));
  }

  public static long count() {
    return getInstance().entityManager.createQuery("select count(m) from SILVERMAILMessageBean m",
        Long.class).getSingleResult();
  }
}
