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AI Agent的实时感知与决策：流式处理与事件驱动架构

news 2026/7/3 0:58:04

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2.2 åºäºRedis Streamsçäºä»¶æ»çº¿å®ç°

import asyncio import json import redis.asyncio as redis from dataclasses import dataclass, asdict from typing import Callable, Dict, List from datetime import datetime @dataclass class AgentEvent: event_id: str event_type: str # äºä»¶ç±»åï¼user_message, sensor_data, alert, etc. source: str # äºä»¶æ¥æº payload: Dict # å®é æ°æ® timestamp: float # äºä»¶åçæ¶é´æ³ priority: int = 5 # ä¼å çº§ 1-10ï¼è¶å°è¶ä¼å  context_id: str = "" # å ³èçä¸ä¸æ/ä¼è¯ID class EventBus: """åºäºRedis Streamsçè½»éçº§äºä»¶æ»çº¿""" def __init__(self, redis_url: str = "redis://localhost:6379"): self.redis = redis.from_url(redis_url, decode_responses=True) self.subscribers: Dict[str, List[Callable]] = {} self.running = False async def publish(self, event: AgentEvent, stream: str = "agent:events") -> str: """åå¸äºä»¶å°æå®æµ""" event_data = asdict(event) event_id = await self.redis.xadd( stream, {"data": json.dumps(event_data)}, maxlen=10000 # ä¿çæè¿10000æ¡ï¼é²æ¢å åæ éå¢é¿ ) return event_id async def subscribe(self, stream: str, handler: Callable, group: str = None): """è®¢é äºä»¶æµï¼æ¯ææ¶è´¹è ç»æ¨¡å¼å®ç°è´è½½åè¡¡""" if group: # åå»ºæ¶è´¹è ç»ï¼å¹çæä½ï¼ try: await self.redis.xgroup_create(stream, group, id="0", mkstream=True) except redis.ResponseError: pass # ç»å·²åå¨ # æ¶è´¹è ç»è¯»åï¼æ¯æå¤å®ä¾è´è½½åè¡¡ while self.running: messages = await self.redis.xreadgroup( group, "consumer-1", {stream: ">"}, count=10, block=1000 ) for stream_name, msgs in messages: for msg_id, fields in msgs: event = json.loads(fields["data"]) try: await handler(AgentEvent(**event)) await self.redis.xack(stream, group, msg_id) except Exception as e

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