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import json
import redis
import logging
from rag import settings
from rag.utils import singleton
@singleton
class RedisDB:
def __init__(self):
self.REDIS = None
self.config = settings.REDIS
self.__open__()
def __open__(self):
try:
self.REDIS = redis.Redis(host=self.config.get("host", "redis").split(":")[0],
port=int(self.config.get("host", ":6379").split(":")[1]),
db=int(self.config.get("db", 1)),
password=self.config.get("password"))
except Exception as e:
logging.warning("Redis can't be connected.")
return self.REDIS
def is_alive(self):
return self.REDIS is not None
def exist(self, k):
if not self.REDIS: return
try:
return self.REDIS.exists(k)
except Exception as e:
logging.warning("[EXCEPTION]exist" + str(k) + "||" + str(e))
self.__open__()
def get(self, k):
if not self.REDIS: return
try:
return self.REDIS.get(k)
except Exception as e:
logging.warning("[EXCEPTION]get" + str(k) + "||" + str(e))
self.__open__()
def set_obj(self, k, obj, exp=3600):
try:
self.REDIS.set(k, json.dumps(obj, ensure_ascii=False), exp)
return True
except Exception as e:
logging.warning("[EXCEPTION]set_obj" + str(k) + "||" + str(e))
self.__open__()
return False
def set(self, k, v, exp=3600):
try:
self.REDIS.set(k, v, exp)
return True
except Exception as e:
logging.warning("[EXCEPTION]set" + str(k) + "||" + str(e))
self.__open__()
return False
def transaction(self, key, value, exp=3600):
try:
pipeline = self.REDIS.pipeline(transaction=True)
pipeline.set(key, value, exp, nx=True)
pipeline.execute()
return True
except Exception as e:
logging.warning("[EXCEPTION]set" + str(key) + "||" + str(e))
self.__open__()
return False
REDIS_CONN = RedisDB() |