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# 市场行情等级管理
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from db import redis_manager_delegate as redis_manager
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from db.redis_manager_delegate import RedisUtils
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from utils import tool
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class MarketSituationManager:
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# 差
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SITUATION_BAD = 0
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# 一般
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SITUATION_COMMON = 1
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# 好
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SITUATION_GOOD = 2
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__db = 2
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redisManager = redis_manager.RedisManager(2)
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__situation_cache = SITUATION_BAD
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__instance = None
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def __new__(cls, *args, **kwargs):
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if not cls.__instance:
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cls.__instance = super(MarketSituationManager, cls).__new__(cls, *args, **kwargs)
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# 初始化设置
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# 获取交易窗口的锁
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cls.__instance.__situation_cache = cls.get_situation()
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return cls.__instance
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@classmethod
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def __get_redis(cls):
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return cls.redisManager.getRedis()
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def set_situation(self, situation):
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if situation not in [self.SITUATION_BAD, self.SITUATION_COMMON, self.SITUATION_GOOD]:
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raise Exception("situation参数值错误")
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self.__situation_cache = situation
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RedisUtils.setex_async(self.__db, "market_situation", tool.get_expire(), situation)
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# 是否可以下单
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@classmethod
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def get_situation(cls):
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# 默认设置为可交易
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val = RedisUtils.get(cls.__get_redis(), "market_situation")
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if val is None:
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return cls.SITUATION_BAD
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return int(val)
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def get_situation_cache(self):
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return self.__situation_cache
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