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;
  
  import org.n52.iceland.util.action.CompositeAction;
  import org.n52.iceland.util.action.CompositeSerialAction;
  import org.n52.sensorweb.server.db.old.dao.DbQueryFactory;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import com.google.common.base.Joiner;
  
  /**
   *
   * @author <a href="mailto:c.autermann@52north.org">Christian Autermann</a>
   *
   * @since 4.0.0
   */
  public abstract class CompositeCacheUpdate extends AbstractDatasourceCacheUpdate {
  
      @SuppressWarnings("unused")
      private static final Logger LOGGER = LoggerFactory.getLogger(CompositeCacheUpdate.class);
  
      private CompositeAction<AbstractDatasourceCacheUpdate> delegatedAction;
  
      public CompositeCacheUpdate(DbQueryFactory dbQueryFactory, AbstractDatasourceCacheUpdate... actions) {
          setDbQueryFactory(dbQueryFactory);
          this.delegatedAction = new CompositeSerialAction<AbstractDatasourceCacheUpdate>(actions) {
              @Override
              protected void pre(AbstractDatasourceCacheUpdate action) {
                  action.setCache(getCache());
                  action.setErrors(getErrors());
                  action.setSession(getSession());
                  action.setDbQueryFactory(getDbQueryFactory());
              }
  
              @Override
              protected void post(AbstractDatasourceCacheUpdate action) {
                  if (getSession() !=  null) {
                      try {
                          getSession().clear();
                      } catch (Exception e) {
                          LOGGER.error("Error while returning connection after cache update!", e);
                      }
                  }
              }
          };
      }
  
      @Override
      public void execute() {
          delegatedAction.execute();
      }
  
      @Override
      public String toString() {
          return String.format("%s [actions=[%s]]", getClass().getSimpleName(),
                  Joiner.on(", ").join(delegatedAction.getActions()));
      }
  }
  