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.service;
  
  import org.apache.logging.log4j.Level;
  import org.apache.logging.log4j.LogManager;
  import org.apache.logging.log4j.Logger;
  import org.b3log.latke.Keys;
  import org.b3log.latke.ioc.Inject;
  import org.b3log.latke.repository.RepositoryException;
  import org.b3log.latke.service.ServiceException;
  import org.b3log.latke.service.annotation.Service;
  import org.b3log.solo.model.ArchiveDate;
  import org.b3log.solo.repository.ArchiveDateArticleRepository;
  import org.b3log.solo.repository.ArchiveDateRepository;
  import org.json.JSONObject;
  
  import java.util.List;
  
  /**
   * Archive date query service.
   *
   * @author <a href="http://88250.b3log.org">Liang Ding</a>
   * @version 1.1.0.1, Sep 11, 2019
   * @since 0.4.0
   */
  @Service
  public class ArchiveDateQueryService {
  
      /**
       * Logger.
       */
      private static final Logger LOGGER = LogManager.getLogger(ArchiveDateQueryService.class);
  
      /**
       * Archive date repository.
       */
      @Inject
      private ArchiveDateRepository archiveDateRepository;
  
      /**
       * Archive date-Article repository.
       */
      @Inject
      private ArchiveDateArticleRepository archiveDateArticleRepository;
  
      /**
       * Gets published article count of an archive date specified by the given archive date id.
       *
       * @param archiveDateId the given archive date id
       * @return published article count, returns {@code -1} if occurred an exception
       */
      public int getArchiveDatePublishedArticleCount(final String archiveDateId) {
          return archiveDateArticleRepository.getPublishedArticleCount(archiveDateId);
      }
  
      /**
       * Gets all archive dates.
       *
       * @return a list of archive dates, returns an empty list if not found
       * @throws ServiceException service exception
       */
      public List<JSONObject> getArchiveDates() throws ServiceException {
          try {
              return archiveDateRepository.getArchiveDates();
          } catch (final RepositoryException e) {
              LOGGER.log(Level.ERROR, "Gets archive dates failed", e);
              throw new ServiceException("Gets archive dates failed");
          }
      }
  
      /**
       * Gets an archive date by the specified archive date string.
       *
       * @param archiveDateString the specified archive date string (yyyy/MM)
       * @return for example,
       * <pre>
       * {
       *     "archiveDate": {
       *         "oId": "",
       *         "archiveTime": "",
       *         "archiveDatePublishedArticleCount": int
       *     }
       * }
       * </pre>, returns {@code null} if not found
       * @throws ServiceException service exception
       */
      public JSONObject getByArchiveDateString(final String archiveDateString) throws ServiceException {
          final JSONObject ret = new JSONObject();
  
          try {
              final JSONObject archiveDate = archiveDateRepository.getByArchiveDate(archiveDateString);
              if (null == archiveDate) {
                  return null;
              }
  
              final int articleCount = archiveDateArticleRepository.getPublishedArticleCount(archiveDate.optString(Keys.OBJECT_ID));
              archiveDate.put(ArchiveDate.ARCHIVE_DATE_T_PUBLISHED_ARTICLE_COUNT, articleCount);
              ret.put(ArchiveDate.ARCHIVE_DATE, archiveDate);
  
              return ret;
          } catch (final RepositoryException e) {
              LOGGER.log(Level.ERROR, "Gets archive date[string=" + archiveDateString + "] failed", e);
              throw new ServiceException("Gets archive date[string=" + archiveDateString + "] failed");
          }
      }
  }
  