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.mysql;
  
  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.HistoryConfigInfoMapper;
  import com.alibaba.nacos.plugin.datasource.model.MapperContext;
  import com.alibaba.nacos.plugin.datasource.model.MapperResult;
  
  /**
   * The mysql implementation of HistoryConfigInfoMapper.
   *
   * @author hyx
   **/
  
  public class HistoryConfigInfoMapperByMySql extends AbstractMapperByMysql implements HistoryConfigInfoMapper {
  
      @Override
      public MapperResult removeConfigHistory(MapperContext context) {
          String sql = "DELETE FROM his_config_info WHERE gmt_modified < ? LIMIT ?";
          return new MapperResult(sql, CollectionUtils.list(context.getWhereParameter(FieldConstant.START_TIME),
                  context.getWhereParameter(FieldConstant.LIMIT_SIZE)));
      }
  
      @Override
      public MapperResult pageFindConfigHistoryFetchRows(MapperContext context) {
          String sql =
                  "SELECT nid,data_id,group_id,tenant_id,app_name,src_ip,src_user,op_type,ext_info,publish_type,gray_name,gmt_create,gmt_modified "
                          + "FROM his_config_info " + "WHERE data_id = ? AND group_id = ? AND tenant_id = ? ORDER BY nid DESC  LIMIT "
                          + context.getStartRow() + "," + context.getPageSize();
          return new MapperResult(sql, CollectionUtils.list(context.getWhereParameter(FieldConstant.DATA_ID),
                  context.getWhereParameter(FieldConstant.GROUP_ID), context.getWhereParameter(FieldConstant.TENANT_ID)));
      }
      
      @Override
      public String getDataSource() {
          return DataSourceConstant.MYSQL;
      }
  }
  