content: /*
   * Copyright 1999-2022 Alibaba Group Holding Ltd.
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package com.alibaba.nacos.plugin.datasource.impl.derby;
  
  import com.alibaba.nacos.common.utils.CollectionUtils;
  import com.alibaba.nacos.plugin.datasource.constants.DataSourceConstant;
  import com.alibaba.nacos.plugin.datasource.constants.FieldConstant;
  import com.alibaba.nacos.plugin.datasource.mapper.ConfigInfoGrayMapper;
  import com.alibaba.nacos.plugin.datasource.model.MapperContext;
  import com.alibaba.nacos.plugin.datasource.model.MapperResult;
  
  import java.util.Collections;
  
  /**
   * The derby implementation of ConfigInfoGrayMapper.
   *
   * @author rong
   **/
  
  public class ConfigInfoGrayMapperByDerby extends AbstractMapperByDerby implements ConfigInfoGrayMapper {
      
      @Override
      public MapperResult findAllConfigInfoGrayForDumpAllFetchRows(MapperContext context) {
          String sql = "SELECT t.id,data_id,group_id,tenant_id,gray_name,gray_rule,app_name,content,md5,gmt_modified "
                  + " FROM ( SELECT id FROM config_info_gray  ORDER BY id  OFFSET " + context.getStartRow()
                  + " ROWS FETCH NEXT " + context.getPageSize() + " ROWS ONLY ) "
                  + " g, config_info_gray t  WHERE g.id = t.id";
          return new MapperResult(sql, Collections.emptyList());
      }
      
      @Override
      public MapperResult findChangeConfig(MapperContext context) {
          String sql = "SELECT id, data_id, group_id, tenant_id, app_name, content,gray_name,gray_rule, "
                  + "gmt_modified, encrypted_data_key FROM config_info_gray WHERE "
                  + "gmt_modified >= ? and id > ? order by id OFFSET 0 ROWS FETCH NEXT ? ROWS ONLY";
          return new MapperResult(sql, CollectionUtils.list(context.getWhereParameter(FieldConstant.START_TIME),
                  context.getWhereParameter(FieldConstant.LAST_MAX_ID),
                  context.getWhereParameter(FieldConstant.PAGE_SIZE)));
      }
      
      @Override
      public String getDataSource() {
          return DataSourceConstant.DERBY;
      }
  }
  