content: package com.java2nb.novel.service.impl;
  
  import com.java2nb.novel.dao.BookContentDao;
  import com.java2nb.novel.dao.BookDao;
  import com.java2nb.novel.dao.BookIndexDao;
  import com.java2nb.novel.domain.BookDO;
  import com.java2nb.novel.service.BookService;
  import org.springframework.beans.factory.annotation.Autowired;
  import org.springframework.stereotype.Service;
  import org.springframework.transaction.annotation.Transactional;
  import org.springframework.util.CollectionUtils;
  
  import java.util.Date;
  import java.util.List;
  import java.util.Map;
  import java.util.stream.Collectors;
  
  
  @Service
  public class BookServiceImpl implements BookService {
  
      @Autowired
      private BookDao bookDao;
      @Autowired
      private BookIndexDao bookIndexDao;
      @Autowired
      private BookContentDao bookContentDao;
  
      @Override
      public BookDO get(Long id) {
          return bookDao.get(id);
      }
  
      @Override
      public List<BookDO> list(Map<String, Object> map) {
          return bookDao.list(map);
      }
  
      @Override
      public int count(Map<String, Object> map) {
          return bookDao.count(map);
      }
  
      @Override
      public int save(BookDO book) {
          return bookDao.save(book);
      }
  
      @Override
      public int update(BookDO book) {
          return bookDao.update(book);
      }
  
      @Transactional(rollbackFor = Exception.class)
      @Override
      public int remove(Long id) {
          List<Long> indexIds = bookIndexDao.getIdsByBookId(id);
          if (!CollectionUtils.isEmpty(indexIds)) {
              Long[] indexIdArray = indexIds.toArray(new Long[0]);
              bookIndexDao.batchRemove(indexIdArray);
              bookContentDao.removeByIndexIds(indexIdArray);
          }
          return bookDao.remove(id);
      }
  
      @Override
      public int batchRemove(Long[] ids) {
          return bookDao.batchRemove(ids);
      }
  
      @Override
      public Map<Object, Object> tableSta(Date minDate) {
          List<Map<Object, Object>> maps = bookDao.tableSta(minDate);
  
          return maps.stream().collect(Collectors.toMap(x -> x.get("staDate"), x -> x.get("bookCount")));
  
      }
  
  }
  