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.web.admin;
  
  import java.util.Properties;
  
  import org.n52.iceland.ds.Datasource;
  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 AbstractDatasourceController extends AbstractReloadContextController {
      private static final Logger LOG = LoggerFactory.getLogger(AbstractDatasourceController.class);
  
      private Datasource datasource;
  
      protected Datasource getDatasource() {
          if (datasource == null) {
              try {
                  String className = getDatabaseSettingsHandler().get(Datasource.class.getCanonicalName());
                  if (className == null) {
                      LOG.error("Can not find datasource class in datasource.properties!");
                      throw new RuntimeException("Missing Datasource Property!");
                  }
                  datasource = (Datasource) Class.forName(className).newInstance();
              } catch (ClassNotFoundException | InstantiationException | IllegalAccessException ex) {
                  LOG.error("Can not instantiate Datasource!", ex);
                  throw new RuntimeException(ex);
              }
          }
          return datasource;
      }
  
      protected Properties getSettings() {
          return getDatabaseSettingsHandler().getAll();
      }
  
  }
  