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.ArrayList;
  import java.util.Collection;
  
  import org.n52.io.request.IoParameters;
  import org.n52.sensorweb.server.db.old.dao.DbQueryFactory;
  import org.n52.series.db.beans.ProcedureEntity;
  import org.n52.series.db.old.HibernateSessionStore;
  import org.n52.series.db.old.dao.ProcedureDao;
  import org.n52.sos.ds.ApiQueryHelper;
  import org.n52.sos.ds.cache.AbstractQueueingDatasourceCacheUpdate;
  import org.n52.sos.ds.cache.DatasourceCacheUpdateHelper;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import com.google.common.collect.Lists;
  
  /**
   * @author <a href="mailto:c.autermann@52north.org">Christian Autermann</a>
   * @author <a href="mailto:shane@axiomalaska.com">Shane StClair</a>
   *
   * @since 4.0.0
   */
  public class ProcedureCacheUpdate extends AbstractQueueingDatasourceCacheUpdate<ProcedureCacheUpdateTask>
          implements DatasourceCacheUpdateHelper, ApiQueryHelper {
      private static final Logger LOGGER = LoggerFactory.getLogger(ProcedureCacheUpdate.class);
  
      private static final String THREAD_GROUP_NAME = "procedure-cache-update";
  
      private Collection<ProcedureEntity> procedures = new ArrayList<>();
  
      /**
       * constructor
       *
       * @param threads
       *            Thread count
       * @param dbQueryFactory The db query factory
       */
      public ProcedureCacheUpdate(int threads, HibernateSessionStore sessionStore, DbQueryFactory dbQueryFactory) {
          super(threads, THREAD_GROUP_NAME, sessionStore);
          setDbQueryFactory(dbQueryFactory);
      }
  
      @Override
      public void execute() {
          // single threaded updates
          LOGGER.debug("Executing ProcedureCacheUpdate (Single Threaded Tasks)");
          startStopwatch();
          procedures = new ProcedureDao(getSession()).get(createDbQuery(IoParameters.createDefaults()));
          LOGGER.debug("Finished executing ProcedureCacheUpdate (Single Threaded Tasks) ({})", getStopwatchResult());
  
          // multi-threaded execution
          LOGGER.debug("Executing ProcedureCacheUpdate (Multi-Threaded Tasks)");
          startStopwatch();
          super.execute();
          LOGGER.debug("Finished executing ProcedureCacheUpdate (Multi-Threaded Tasks) ({})", getStopwatchResult());
      }
  
      @Override
      protected ProcedureCacheUpdateTask[] getUpdatesToExecute() {
          Collection<ProcedureCacheUpdateTask> procedureUpdateTasks = Lists.newArrayList();
          for (ProcedureEntity procedure : procedures) {
              procedureUpdateTasks
                      .add(new ProcedureCacheUpdateTask(procedure.getId()));
          }
          return procedureUpdateTasks.toArray(new ProcedureCacheUpdateTask[procedureUpdateTasks.size()]);
      }
  
  }
  