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;
  
  
  import javax.servlet.ServletContext;
  import javax.servlet.ServletContextEvent;
  
  import org.n52.iceland.service.DatabaseSettingsHandler;
  import org.n52.sos.ds.HibernateDatasourceConstants;
  import org.n52.sos.ds.HibernateDatasourceConstants.DatabaseExtension;
  import org.springframework.core.env.AbstractEnvironment;
  import org.springframework.web.context.ConfigurableWebApplicationContext;
  import org.springframework.web.context.ContextLoaderListener;
  
  /**
   * {@link ContextLoaderListener} enhancement to set active profile depending on
   * database concept and add setting config location to 'contextConfigLocation'.
   *
   * @author Carsten Hollmann
   * @since 5.1.1
   *
   */
  public class SosContextLoaderListener extends ContextLoaderListener {
  
      public static final String SETTINGS_LOCATION_PARAM = "settingsConfigLocation";
      private boolean configured;
  
      @Override
      public void contextInitialized(ServletContextEvent event) {
          ServletContext sc = event.getServletContext();
          DatabaseSettingsHandler handler = new DatabaseSettingsHandler();
          handler.setServletContext(sc);
          this.configured = handler.exists();
          if (configured) {
              setProfile(handler, sc);
          }
          initWebApplicationContext(event.getServletContext());
      }
  
      /**
       * Add profile to the context depending on the database concept
       *
       * @param handler
       *            the datasoure properties handler
       * @param sc
       *            the context
       */
      private void setProfile(DatabaseSettingsHandler handler, ServletContext sc) {
          String concept = handler.getAll()
                  .getProperty(HibernateDatasourceConstants.DATABASE_CONCEPT_KEY);
          String extension = handler.getAll()
                  .getProperty(HibernateDatasourceConstants.DATABASE_EXTENSION_KEY, DatabaseExtension.DATASOURCE.name());
          String profiles = handler.getAll()
                  .getProperty(HibernateDatasourceConstants.SPRING_PROFILE_KEY, DatabaseExtension.DATASOURCE.name());
          sc.setInitParameter(
                  AbstractEnvironment.ACTIVE_PROFILES_PROPERTY_NAME,
                  String.join(",", concept.toLowerCase(), extension.toLowerCase(), profiles.toLowerCase()));
      }
  
      @Override
      protected void customizeContext(ServletContext sc, ConfigurableWebApplicationContext wac) {
          if (configured) {
              // add setting config location to 'contextConfigLocation' parameter
              String settingLocation = sc.getInitParameter(SETTINGS_LOCATION_PARAM);
              if (settingLocation != null && !settingLocation.isEmpty()) {
                  wac.setConfigLocation(
                          new StringBuffer(sc.getInitParameter(CONFIG_LOCATION_PARAM)).append(System.lineSeparator())
                                  .append(settingLocation)
                                  .toString());
              }
          }
          super.customizeContext(sc, wac);
      }
  }
  