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.cache.base;
  
  import java.util.List;
  
  import org.hibernate.HibernateException;
  import org.n52.io.request.IoParameters;
  import org.n52.series.db.beans.OfferingEntity;
  import org.n52.series.db.old.dao.OfferingDao;
  import org.n52.shetland.ogc.gml.time.TimePeriod;
  import org.n52.shetland.ogc.ows.exception.NoApplicableCodeException;
  import org.n52.sos.ds.cache.AbstractThreadableDatasourceCacheUpdate;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  /**
   *
   * @author <a href="mailto:c.autermann@52north.org">Christian Autermann</a>
   *
   * @since 4.0.0
   */
  public class ObservationTimeCacheUpdate extends AbstractThreadableDatasourceCacheUpdate {
      private static final Logger LOGGER = LoggerFactory.getLogger(ObservationTimeCacheUpdate.class);
  
      @Override
      public void execute() {
          LOGGER.debug("Executing ObservationTimeCacheUpdate");
          startStopwatch();
          try {
              // TODD Use TimerPeriod.expand from OfferingTimes
              List<OfferingEntity> offerings =
                      new OfferingDao(getSession()).getAllInstances(createDbQuery(IoParameters.createDefaults()));
              TimePeriod phenomenonTime = new TimePeriod();
              TimePeriod resultTime = new TimePeriod();
              for (OfferingEntity offering : offerings) {
                  phenomenonTime.extendToContain(
                          new TimePeriod(offering.getSamplingTimeStart(), offering.getSamplingTimeEnd()));
                  resultTime.extendToContain(new TimePeriod(offering.getResultTimeStart(), offering.getResultTimeEnd()));
              }
              getCache().setMinPhenomenonTime(phenomenonTime.getStart());
              getCache().setMaxPhenomenonTime(phenomenonTime.getEnd());
              getCache().setMinResultTime(resultTime.getStart());
              getCache().setMaxResultTime(resultTime.getEnd());
          } catch (HibernateException dae) {
              getErrors().add(new NoApplicableCodeException().causedBy(dae)
                      .withMessage("Error while updating observation time cache!"));
          }
          LOGGER.debug("Finished executing ObservationTimeCacheUpdate ({})", getStopwatchResult());
      }
  
  }
  