89 lines
2.5 KiB
Python
89 lines
2.5 KiB
Python
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"""
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WebSocket连接管理器
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"""
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from typing import Dict, Set
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from fastapi import WebSocket
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import json
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import asyncio
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class WebSocketManager:
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"""WebSocket连接管理器"""
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def __init__(self):
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"""初始化管理器"""
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# execution_id -> Set[WebSocket]
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self.active_connections: Dict[str, Set[WebSocket]] = {}
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async def connect(self, websocket: WebSocket, execution_id: str):
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"""
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建立WebSocket连接
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Args:
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websocket: WebSocket连接
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execution_id: 执行记录ID
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"""
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await websocket.accept()
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if execution_id not in self.active_connections:
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self.active_connections[execution_id] = set()
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self.active_connections[execution_id].add(websocket)
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def disconnect(self, websocket: WebSocket, execution_id: str):
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"""
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断开WebSocket连接
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Args:
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websocket: WebSocket连接
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execution_id: 执行记录ID
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"""
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if execution_id in self.active_connections:
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self.active_connections[execution_id].discard(websocket)
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# 如果没有连接了，删除该execution_id
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if not self.active_connections[execution_id]:
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del self.active_connections[execution_id]
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async def send_personal_message(self, message: dict, websocket: WebSocket):
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"""
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发送个人消息
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Args:
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message: 消息内容
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websocket: WebSocket连接
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"""
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try:
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await websocket.send_json(message)
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except Exception as e:
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print(f"发送WebSocket消息失败: {e}")
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async def broadcast_to_execution(self, execution_id: str, message: dict):
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"""
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向特定执行的所有连接广播消息
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Args:
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execution_id: 执行记录ID
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message: 消息内容
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"""
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if execution_id not in self.active_connections:
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return
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# 需要断开连接的连接
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disconnected = set()
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for websocket in self.active_connections[execution_id]:
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try:
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await websocket.send_json(message)
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except Exception as e:
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print(f"广播消息失败: {e}")
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disconnected.add(websocket)
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# 移除断开的连接
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for websocket in disconnected:
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self.disconnect(websocket, execution_id)
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# 全局WebSocket管理器实例
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websocket_manager = WebSocketManager()
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