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- import multiprocessing
- import os.path
- import traceback
- from etl.common.PathsAndTable import PathsAndTable
- from service.trans_conf_service import update_trans_transfer_progress
- from service.trans_service import save_partation_file_to_db, save_file_to_db
- from utils.file.trans_methods import split_array
- from utils.log.trans_log import trans_print
- from utils.systeminfo.sysinfo import get_available_cpu_count_with_percent
- class SaveToDb(object):
- def __init__(self, pathsAndTable: PathsAndTable, update_files, batch_count=100000):
- self.pathsAndTable = pathsAndTable
- self.batch_count = batch_count
- self.update_files = update_files
- def mutiprocessing_to_save_db(self):
- # 开始保存到SQL文件
- all_saved_files = self.update_files
- # 映射到的文件保存到数据库
- all_saved_files = [i for i in all_saved_files if
- os.path.basename(i).split(".")[0] in self.pathsAndTable.wind_col_trans.keys()]
- self.pathsAndTable.create_wind_farm_db()
- split_count = get_available_cpu_count_with_percent(percent=2 / 3)
- split_count = split_count if split_count <= len(all_saved_files) else len(all_saved_files)
- all_arrays = split_array(all_saved_files, split_count)
- try:
- for index, arr in enumerate(all_arrays):
- with multiprocessing.Pool(split_count) as pool:
- if self.pathsAndTable.read_type in ['minute', 'second']:
- pool.starmap(save_partation_file_to_db,
- [(self.pathsAndTable.get_table_name(), file,
- self.pathsAndTable.wind_col_trans[os.path.basename(file).split(".")[0]],
- os.path.basename(os.path.dirname(file)),
- self.batch_count) for file in arr])
- else:
- pool.starmap(save_file_to_db,
- [(self.pathsAndTable.get_table_name(), file, self.batch_count) for file in arr])
- update_trans_transfer_progress(self.pathsAndTable.id,
- round(70 + 29 * (index + 1) / len(all_arrays), 2),
- self.pathsAndTable.save_db)
- except Exception as e:
- trans_print(traceback.format_exc())
- message = "保存到数据库错误,系统返回错误:" + str(e)
- raise ValueError(message)
- def run(self):
- if self.pathsAndTable.save_db:
- self.mutiprocessing_to_save_db()
- update_trans_transfer_progress(self.pathsAndTable.id, 99,
- self.pathsAndTable.save_db)
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