content: /*
   * Solo - A small and beautiful blogging system written in Java.
   * Copyright (c) 2010-present, b3log.org
   *
   * Solo is licensed under Mulan PSL v2.
   * You can use this software according to the terms and conditions of the Mulan PSL v2.
   * You may obtain a copy of Mulan PSL v2 at:
   *         http://license.coscl.org.cn/MulanPSL2
   * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
   * See the Mulan PSL v2 for more details.
   */
  package org.b3log.solo.repository;
  
  import org.b3log.latke.Keys;
  import org.b3log.latke.ioc.Inject;
  import org.b3log.latke.repository.*;
  import org.b3log.latke.repository.annotation.Repository;
  import org.b3log.solo.cache.OptionCache;
  import org.b3log.solo.model.Option;
  import org.json.JSONObject;
  
  import java.util.List;
  
  /**
   * Option repository.
   *
   * @author <a href="http://88250.b3log.org">Liang Ding</a>
   * @version 1.1.0.2, Jun 6, 2019
   * @since 0.6.0
   */
  @Repository
  public class OptionRepository extends AbstractRepository {
  
      /**
       * Option cache.
       */
      @Inject
      private OptionCache optionCache;
  
      /**
       * Public constructor.
       */
      public OptionRepository() {
          super(Option.OPTION);
      }
  
      @Override
      public void remove(final String id) throws RepositoryException {
          final JSONObject option = get(id);
          if (null == option) {
              return;
          }
  
          super.remove(id);
          optionCache.removeOption(id);
  
          final String category = option.optString(Option.OPTION_CATEGORY);
          optionCache.removeCategory(category);
      }
  
      @Override
      public JSONObject get(final String id) throws RepositoryException {
          JSONObject ret = optionCache.getOption(id);
          if (null != ret) {
              return ret;
          }
  
          ret = super.get(id);
          if (null == ret) {
              return null;
          }
  
          optionCache.putOption(ret);
  
          return ret;
      }
  
      @Override
      public void update(final String id, final JSONObject option, final String... propertyNames) throws RepositoryException {
          super.update(id, option, propertyNames);
  
          option.put(Keys.OBJECT_ID, id);
          optionCache.putOption(option);
      }
  
      /**
       * Gets options with the specified category.
       * <p>
       * All options with the specified category will be merged into one json object as the return value.
       * </p>
       *
       * @param category the specified category
       * @return all options with the specified category, for example,
       * <pre>
       * {
       *     "${optionId}": "${optionValue}",
       *     ....
       * }
       * </pre>, returns {@code null} if not found
       * @throws RepositoryException repository exception
       */
      public JSONObject getOptions(final String category) throws RepositoryException {
          final JSONObject cached = optionCache.getCategory(category);
          if (null != cached) {
              return cached;
          }
  
          final JSONObject ret = new JSONObject();
          try {
              final List<JSONObject> options = getList(new Query().setFilter(new PropertyFilter(Option.OPTION_CATEGORY, FilterOperator.EQUAL, category)));
              if (0 == options.size()) {
                  return null;
              }
  
              options.stream().forEach(option -> ret.put(option.optString(Keys.OBJECT_ID), option.opt(Option.OPTION_VALUE)));
              optionCache.putCategory(category, ret);
  
              return ret;
          } catch (final Exception e) {
              throw new RepositoryException(e);
          }
      }
  }
  