dwt_aba_last_change_rate.py

import os
import sys

sys.path.append(os.path.dirname(sys.path[0]))
from utils.ssh_util import SSHUtil
from utils.common_util import CommonUtil, DateTypes
from utils.db_util import DBUtil

if __name__ == '__main__':
    site_name = CommonUtil.get_sys_arg(1, None)
    date_type = CommonUtil.get_sys_arg(2, None)
    date_info = CommonUtil.get_sys_arg(3, None)

    # 获取最后一个参数，判断是否导出到测试环境
    test_flag = CommonUtil.get_sys_arg(len(sys.argv) - 1, None)
    print(f"执行参数为{sys.argv}")

    if test_flag == 'test':
        db_type = 'postgresql_test'
        print("导出到PG测试库中")
    else:
        db_type = "postgresql"
        print("导出到PG正式库中")

    # 获取数据库连接
    engine = DBUtil.get_db_engine(db_type, site_name)

    # 导出表
    export_base_tb = f"{site_name}_aba_last_change_rate"

    # last30day和last365day导出
    if date_type in (DateTypes.last30day.name, DateTypes.last365day.name):
        export_tb_target = f"{export_base_tb}_{date_type}"  # us_aba_last_change_rate_last30day / _last365day
        export_tb_copy = f"{export_tb_target}_copy"
        export_tb = export_tb_copy
        # 如果copy表不存在则创建copy表
        sql = f"""
               create table if not exists {export_tb_copy} 
              (
                  like {export_tb_target} including indexes including comments
              );
              truncate table {export_tb_copy};
              """
        DBUtil.engine_exec_sql(engine, sql)
    else:
        # day,week,month这种时间类型的数据导出
        date_partition = str(date_info).replace("-", "_")
        export_tb = f"{site_name}_aba_last_change_rate_{date_type}_{date_partition}"
        next_val = CommonUtil.get_next_val(date_type, date_info)
        # 创建分区，并清空导出分区
        sql = f"""
              create table if not exists {export_tb} partition of {export_base_tb} for values from ('{date_type}', '{date_info}') to ('{date_type}', '{next_val}');
              truncate table {export_tb};
              """
        DBUtil.engine_exec_sql(engine, sql)

    # 导出表名
    sh = CommonUtil.build_export_sh(
        site_name=site_name,
        db_type=db_type,
        hive_tb="dwt_aba_last_change_rate",
        export_tb=export_tb,
        col=[
            "search_term",
            "search_term_id",
            "date_type",
            "date_info",
            "rank_change_rate",
            "bsr_orders_change_rate",
            "cn_seller_change_rate",
            "fbm_change_rate",
            "amazon_change_rate",
            "rank_rate_of_change",
            "bsr_orders_rate_of_change",
            "cn_seller_rate_of_change",
            "fbm_rate_of_change",
            "amazon_rate_of_change",
            "created_time",
            "updated_time"
        ],
        partition_dict={
            "site_name": site_name,
            "date_type": date_type,
            "date_info": date_info
        }
    )

    client = SSHUtil.get_ssh_client()
    SSHUtil.exec_command_async(client, sh, ignore_err=False)
    client.close()

    if date_type in (DateTypes.last30day.name, DateTypes.last365day.name):
        #  需要通过备份表替换形式替换数据
        DBUtil.exchange_tb(engine, export_tb_copy, export_tb_target, cp_index_flag=False)