#!/usr/bin/env python3
# coding: utf-8
"""
多線程和協(xié)程配合使用示例
"""

import os
import time
from gevent import monkey;monkey.patch_all()
from gevent.pool import Pool
from functools import partial
from multiprocessing import Process

COROUTINE_NUMBER = 2000 # 協(xié)程池數(shù)量
pool = Pool(COROUTINE_NUMBER) # 使用協(xié)程池

# 模擬數(shù)據(jù)倉庫，測試數(shù)據(jù)
data_dict = {"1":"x1","3":"x3","5":"x5","7":"x7","9":"x9"}

class TestProgram(object): # 測試程序
 def __init__(self):
  self.BASE_DIR = os.path.dirname(os.path.abspath(__file__)) # 項目根目錄

 def write_log(self,number, content, colour='white', skip=False):
  """
  寫入日志文件
  :param content: 寫入內(nèi)容
  :param colour: 顏色
  :param skip: 是否跳過打印時間
  :return:
  """
  # 顏色代碼
  colour_dict = {
   'red': 31, # 紅色
   'green': 32, # 綠色
   'yellow': 33, # 黃色
   'blue': 34, # 藍色
   'purple_red': 35, # 紫紅色
   'bluish_blue': 36, # 淺藍色
   'white': 37, # 白色
  }
  choice = colour_dict.get(colour) # 選擇顏色

  path = os.path.join(self.BASE_DIR, "output_%s.log" % number) # 日志文件
  with open(path, mode='a+', encoding='utf-8') as f:
   if skip is False: # 不跳過打印時間時
    content = time.strftime('%Y-%m-%d %H:%M:%S') + ' ' + content

   info = "\033[1;{};1m{}\033[0m".format(choice, content)
   print(info)
   f.write(content + "\n")

 def has_null(self, key, number):
  """
  輸出key
  :param key: 鍵值
  :param number: 文件標記
  :return: bool
  """
  key = key.strip()
  if not data_dict.get(key):
   self.write_log(number,"錯誤，{} 記錄為空".format(key),"red")
   return False

  print(key)
  return True

 def read_file(self, number):
  """
  讀取文件
  :param number: 文件標記
  :return:
  """
  file_name = os.path.join(self.BASE_DIR, "data", "%s.txt" % number)
  # print(file_name)
  self.write_log(number, "開始讀取文件 {}".format(file_name),"green")
  with open(file_name, encoding='utf-8') as f:
   # 使用協(xié)程池，執(zhí)行任務。語法: pool.map(func,iterator)
   # partial使用偏函數(shù)傳遞參數(shù)
   # 注意：has_null第一個參數(shù),必須是迭代器遍歷的值
   pool.map(partial(self.has_null, number=number), f)

  self.write_log(number, "結(jié)束文件讀取 {} 完成".format(file_name),"green")
  return True

 def run(self, number):
  """
  讀取指定的文件，判斷每一個key是否為空
  :param number:
  :return:
  """
  startime = time.time() # 開始時間

  # 清空日志
  path = os.path.join(self.BASE_DIR, "output_%s.log" % number) # 日志文件
  with open(path, mode='w') as f:
   pass

  self.read_file(number)

  endtime = time.time()
  take_time = endtime - startime

  if take_time < 1: # 判斷不足1秒時
   take_time = 1 # 設置為1秒
  # 計算花費時間
  m, s = divmod(take_time, 60)
  h, m = divmod(m, 60)

  self.write_log(number, "%s.txt 花費時間 %02d:%02d:%02d" % (number,h, m, s),"green")

 def main(self):
  """
  使用多線程執(zhí)行程序
  :return:
  """
  # 文件標記列表
  file_list = ["7001", "7002", "7003"]

  p_lst = [] # 線程列表
  for i in file_list:
   # self.run(i)
   p = Process(target=self.run, args=(i,)) # 子進程調(diào)用函數(shù)
   p.start() # 啟動子進程
   p_lst.append(p) # 將所有進程寫入列表中

  for p in p_lst: p.join() # 檢測p是否結(jié)束,如果沒有結(jié)束就阻塞直到結(jié)束,否則不阻塞


TestProgram().main() # 啟動主程序，它會開啟3個進程。