content: /*
   * Copyright (C) 2012-2023 52°North Spatial Information Research GmbH
   *
   * This program is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 as published
   * by the Free Software Foundation.
   *
   * If the program is linked with libraries which are licensed under one of
   * the following licenses, the combination of the program with the linked
   * library is not considered a "derivative work" of the program:
   *
   *     - Apache License, version 2.0
   *     - Apache Software License, version 1.0
   *     - GNU Lesser General Public License, version 3
   *     - Mozilla Public License, versions 1.0, 1.1 and 2.0
   *     - Common Development and Distribution License (CDDL), version 1.0
   *
   * Therefore the distribution of the program linked with libraries licensed
   * under the aforementioned licenses, is permitted by the copyright holders
   * if the distribution is compliant with both the GNU General Public
   * License version 2 and the aforementioned licenses.
   *
   * 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.
   */
  package org.n52.sos.ds.hibernate.dao;
  
  import org.hibernate.Criteria;
  import org.hibernate.Session;
  import org.hibernate.criterion.Restrictions;
  import org.n52.series.db.beans.CodespaceEntity;
  import org.n52.sos.ds.hibernate.util.HibernateHelper;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  /**
   * Hibernate data access class for codespace
   *
   * @author CarstenHollmann
   * @since 4.0.0
   */
  public class CodespaceDAO {
  
      private static final Logger LOGGER = LoggerFactory.getLogger(CodespaceDAO.class);
  
      /**
       * Get codespace object for identifier
       *
       * @param codespace
       *            identifier
       * @param session
       *            Hibernate session
       * @return Codespace object
       */
      public CodespaceEntity getCodespace(final String codespace, final Session session) {
          Criteria criteria = session.createCriteria(CodespaceEntity.class)
                  .add(Restrictions.eq(CodespaceEntity.PROPERTY_NAME, codespace));
          LOGGER.trace("QUERY getCodespace(codespace): {}", HibernateHelper.getSqlString(criteria));
          return (CodespaceEntity) criteria.uniqueResult();
      }
  
      /**
       * Insert and/or get codespace object
       *
       * @param codespace
       *            Codespace identifier
       * @param session
       *            Hibernate session
       * @return Codespace object
       */
      public CodespaceEntity getOrInsertCodespace(final String codespace, final Session session) {
          CodespaceEntity result = getCodespace(codespace, session);
          if (result == null) {
              result = new CodespaceEntity();
              result.setName(codespace);
              session.save(result);
              session.flush();
              session.refresh(result);
          }
          return result;
      }
  }
  