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"""适配器管理服务 - 对应Go的internal/service/adapter.go"""
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import asyncio
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from datetime import datetime
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from typing import Dict, List, Optional, Callable
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from threading import RLock
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from app.models import (
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AdapterListData, AdapterInfo, AdapterStatus,
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AdapterToggleRequest, AdapterConfigUpdateRequest
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)
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from app.adapters import DataSourceAdapter, AmazingDataAdapter
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from app.core.logger import info, error
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class AdapterService:
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"""适配器管理服务（单例模式）
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确保整个应用中只有一个 AdapterService 实例，
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避免重复创建导致适配器连接状态丢失。
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"""
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_instance: Optional['AdapterService'] = None
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_lock = RLock()
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def __new__(cls) -> 'AdapterService':
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if cls._instance is None:
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with cls._lock:
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if cls._instance is None:
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cls._instance = super().__new__(cls)
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cls._instance._initialized = False
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return cls._instance
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def __init__(self):
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# 避免重复初始化
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if self._initialized:
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return
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with self._lock:
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if self._initialized:
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return
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self.lock = RLock()
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# 已注册的适配器工厂
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self.factories: Dict[str, Callable[[], DataSourceAdapter]] = {}
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# 适配器配置
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self.configs: Dict[str, dict] = {}
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# 当前激活的适配器实例
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self.active_adapters: Dict[str, DataSourceAdapter] = {}
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# 适配器元数据
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self.metadata: Dict[str, dict] = {}
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# 注册内置适配器
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self._register_builtin_adapters()
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self._initialized = True
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def _register_builtin_adapters(self):
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"""注册内置适配器"""
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# 注册星耀数智(AmazingData)适配器
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self.register_adapter("amazingdata", lambda: AmazingDataAdapter())
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# 设置星耀数智元数据
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self.metadata["amazingdata"] = {
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"name": "amazingdata",
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"type": "sdk",
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"version": "1.0.30",
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"description": "银河证券星耀数智量化平台（需要SDK和账号）",
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"updated_at": datetime.now()
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}
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# 星耀数智默认配置（需要账号）
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self.configs["amazingdata"] = {
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"enabled": False,
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"config": {
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"username": "",
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"password": "",
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"host": "",
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"port": 8080,
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"local_path": "./amazing_data_cache/",
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"use_local_cache": True
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}
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}
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def get_adapter_list(self) -> AdapterListData:
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"""获取适配器列表"""
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with self.lock:
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adapters = []
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for name, meta in self.metadata.items():
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cfg = self.configs.get(name, {"enabled": False, "config": {}})
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# 确定状态
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if not cfg["enabled"]:
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status = AdapterStatus.DISABLED
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elif name in self.active_adapters:
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status = AdapterStatus.ACTIVE
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else:
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status = AdapterStatus.STANDBY
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adapters.append(AdapterInfo(
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name=meta["name"],
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type=meta["type"],
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version=meta["version"],
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description=meta["description"],
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status=status,
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config=cfg.get("config", {}),
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updated_at=meta.get("updated_at", datetime.now())
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))
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return AdapterListData(adapters=adapters)
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def toggle_adapter(self, req: AdapterToggleRequest) -> None:
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"""启用/禁用适配器"""
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with self.lock:
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if req.name not in self.configs:
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raise ValueError(f"Adapter not found: {req.name}")
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old_enabled = self.configs[req.name]["enabled"]
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self.configs[req.name]["enabled"] = req.enable
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# 如果禁用，关闭适配器连接
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if not req.enable and req.name in self.active_adapters:
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adapter = self.active_adapters.pop(req.name)
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asyncio.create_task(adapter.close())
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# 如果启用且之前未启用，建立连接
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if req.enable and not old_enabled and req.name not in self.active_adapters:
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# 使用 create_task 启动异步连接
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asyncio.create_task(self._connect_adapter(req.name))
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# 更新元数据
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if req.name in self.metadata:
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self.metadata[req.name]["updated_at"] = datetime.now()
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def update_adapter_config(self, req: AdapterConfigUpdateRequest) -> None:
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"""更新适配器配置"""
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with self.lock:
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if req.name not in self.configs:
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raise ValueError(f"Adapter not found: {req.name}")
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# 更新配置
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self.configs[req.name]["config"].update(req.config)
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# 如果适配器已激活，重新连接
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if req.name in self.active_adapters:
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adapter = self.active_adapters.pop(req.name)
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asyncio.create_task(adapter.close())
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# 如果启用状态，重新连接
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if self.configs[req.name]["enabled"]:
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asyncio.create_task(self._connect_adapter(req.name))
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# 更新元数据
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if req.name in self.metadata:
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self.metadata[req.name]["updated_at"] = datetime.now()
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def get_active_adapter(self, asset_class: str) -> Optional[DataSourceAdapter]:
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"""获取当前激活的适配器
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Args:
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asset_class: 资产类别，如 'stock', 'futures'
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"""
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from app.core.config import get_config
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with self.lock:
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# 从配置获取当前激活的适配器名称
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self.config = get_config()
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print(f"Getting active adapter for asset class,config is : {self.config}")
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if asset_class == "stock":
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active_name = self.config.sources.stock.active
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elif asset_class == "futures":
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active_name = self.config.sources.futures.active
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else:
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active_name = "custom" # 默认
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print(f"Using adapter: {active_name}")
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# 返回已激活的适配器实例
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if active_name in self.active_adapters:
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print(f"Adapter {active_name} already connected, reusing...")
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return self.active_adapters[active_name]
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# 如果适配器已注册但未连接，尝试连接
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# 检查适配器是否已注册（在 factories 中）
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if active_name in self.factories:
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print(f"Adapter {active_name} registered but not connected, connecting...")
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# 注意：这里不直接调用异步方法，让调用方处理连接
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# 返回 None 表示需要连接，由服务层调用 _connect_adapter
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# 如果没有激活的适配器，返回None
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return None
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def get_available_adapters(self) -> List[str]:
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"""获取所有可用的适配器名称"""
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with self.lock:
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names = []
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for name, meta in self.metadata.items():
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if name in self.factories:
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names.append(f"{name}|{meta['description']}")
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return names
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def register_adapter(self, name: str, factory: Callable[[], DataSourceAdapter]):
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"""注册适配器"""
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with self.lock:
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self.factories[name] = factory
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async def _connect_adapter(self, name: str):
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"""连接适配器"""
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from app.core.config import get_config
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with self.lock:
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if name not in self.factories:
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raise ValueError(f"Adapter factory not found: {name}")
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if name not in self.configs:
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raise ValueError(f"Adapter config not found: {name}")
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# 如果已经连接，先关闭
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if name in self.active_adapters:
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old_adapter = self.active_adapters.pop(name)
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try:
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await old_adapter.close()
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except Exception as e:
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error(f"Error closing old adapter {name}: {e}")
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factory = self.factories[name]
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# 从 config.json 获取最新配置（与文件同步）
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file_config = get_config()
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print(f"Using file config: {file_config}, adapter name: {name}")
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# 尝试从配置文件中获取适配器配置
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adapter_config = None
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# 1. 首先检查 stock 配置
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if name in file_config.sources.stock.list:
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source_info = file_config.sources.stock.list[name]
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adapter_config = dict(source_info.config) if source_info else {}
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print(f"Using stock config for {name}: {adapter_config}")
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# 2. 然后检查 futures 配置
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elif name in file_config.sources.futures.list:
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source_info = file_config.sources.futures.list[name]
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adapter_config = dict(source_info.config) if source_info else {}
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print(f"Using futures config for {name}: {adapter_config}")
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# 3. 使用默认配置
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else:
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adapter_config = self.configs[name].get("config", {})
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print(f"Using default config for {name}: {adapter_config}")
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# 处理 port 为字符串的情况
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if "port" in adapter_config and isinstance(adapter_config["port"], str):
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adapter_config["port"] = int(adapter_config["port"]) if adapter_config["port"].strip() else 8600
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cfg = {"enabled": self.configs[name].get("enabled", False), "config": adapter_config}
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try:
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info(f"243 Connecting to adapter: {name},config: {cfg}")
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adapter = factory()
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await adapter.connect(cfg["config"])
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with self.lock:
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self.active_adapters[name] = adapter
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info(f"Adapter {name} connected successfully")
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except Exception as e:
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error(f"Failed to connect adapter {name}: {e}")
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# 重置启用状态
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with self.lock:
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if name in self.configs:
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self.configs[name]["enabled"] = False
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async def health_check(self, name: str) -> bool:
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"""适配器健康检查"""
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with self.lock:
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if name not in self.active_adapters:
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return False
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adapter = self.active_adapters[name]
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return await adapter.health_check()
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