#!/usr/bin/env python3 import redis import os import json import time class RedisSuperStorage: def __init__(self, redis_url: str, timeout: int): self.r = redis.from_url(redis_url) self._timeout = timeout def get_consumer_list(self) -> dict: keys = self.r.keys('consumer_*') list_of_customers = {} for key in keys: info = json.loads((self.r.get(key) or b"{}").decode('utf-8')) if info: list_of_customers[info['uuid']] = info return list_of_customers def get_producer_list(self) -> dict: keys = self.r.keys('producer_*') list_of_producer_ip = {} for key in keys: ip = (self.r.get(key) or b"").decode('utf-8') if ip: list_of_producer_ip[key.decode('utf-8')] = ip return list_of_producer_ip def update_consumer(self, uuid: str, ip: str): cust_key = f"consumer_{uuid}" info = { "uuid": uuid, "ip": ip, "last_seen": time.time() } self.r.set(cust_key, json.dumps(info).encode('utf-8')) self.r.expire(cust_key, os.environ["CUSTOMER_TIMEOUT"]) def get_current_ip(self) -> str: ip = self.r.get('current_ip') if ip: ip = ip.decode('utf-8') return ip def set_current_ip(self, ip: str): self.r.set('current_ip', ip.encode('utf-8')) current_ip = property(get_current_ip, set_current_ip)