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import os
import sys
os.environ["PYARROW_IGNORE_TIMEZONE"] = "1"
sys.path.append(os.path.dirname(sys.path[0])) # 上级目录
from utils.templates import Templates
# from ..utils.templates import Templates
from pyspark.sql import functions as F
class DimCalAsinTruncate(Templates):
def __init__(self, site_name='us'):
super().__init__()
self.site_name = site_name
self.db_save = f'dim_cal_asin_truncate'
self.spark = self.create_spark_object(app_name=f"{self.db_save}: {self.site_name}")
self.df_asin = self.spark.sql(f"select 1+1;")
self.df_save = self.spark.sql(f"select 1+1;")
self.partitions_by = ['site_name']
self.reset_partitions(50)
def read_data(self):
sql = f"select asin, asin_img_url, site_name, asin_title, asin_title_len, asin_category_desc, " \
f"asin_rank, asin_volume, asin_weight, asin_color, asin_size, asin_style, asin_price, " \
f"asin_rating, asin_total_comments, asin_material, asin_brand_name, asin_page_inventory, " \
f"bsr_cate_1_id, bsr_cate_current_id, asin_buy_box_seller_type " \
f"from dim_cal_asin_history_detail where site_name='{self.site_name}';"
self.df_asin = self.spark.sql(sql).cache()
def handle_data(self):
self.df_asin = self.df_asin.withColumn("asin_trun_1", F.substring(self.df_asin.asin, 1, 1))
self.df_asin = self.df_asin.withColumn("asin_trun_2", F.substring(self.df_asin.asin, 1, 2))
self.df_asin = self.df_asin.withColumn("asin_trun_3", F.substring(self.df_asin.asin, 1, 3))
self.df_asin = self.df_asin.withColumn("asin_trun_4", F.substring(self.df_asin.asin, 1, 4))
self.df_asin = self.df_asin.withColumn("asin_trun_5", F.substring(self.df_asin.asin, 1, 5))
self.df_asin = self.df_asin.withColumn("asin_trun_6", F.substring(self.df_asin.asin, 1, 6))
self.df_asin = self.df_asin.withColumn("asin_trun_7", F.substring(self.df_asin.asin, 1, 7))
self.df_asin = self.df_asin.withColumn("asin_trun_8", F.substring(self.df_asin.asin, 1, 8))
self.df_asin = self.df_asin.withColumn("asin_trun_9", F.substring(self.df_asin.asin, 1, 9))
self.df_asin = self.df_asin.withColumn(
"asin_img_path",
F.concat(
F.lit("/"), self.df_asin.asin_trun_1,
F.lit("/"), self.df_asin.asin_trun_2,
F.lit("/"), self.df_asin.asin_trun_3,
F.lit("/"), self.df_asin.asin_trun_4,
F.lit("/"), self.df_asin.asin_trun_5,
F.lit("/"), self.df_asin.asin_trun_6,
F.lit("/")
)
)
self.df_save = self.df_asin
self.df_save.show(10, truncate=False)
if __name__ == '__main__':
site_name = sys.argv[1] # 参数1：站点
handle_obj = DimCalAsinTruncate(site_name=site_name)
handle_obj.run()