strepsiades
268 lines
9.0 KiB
Python
268 lines
9.0 KiB
Python
"""
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Domain 注册中心
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提供统一的 domain 组件注册和查询接口。
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各模块（Collection/DataSource/Strategy）按需获取。
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使用方式：
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1. 在 domain/__init__.py 中注册所有组件
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2. 各模块按需查询
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示例：
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# 注册
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from ..common.registry import DomainRegistry
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from .contract import ContractSyncNode, ContractJsonlHandler
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DomainRegistry.register(
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node_type="contract",
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schema=ContractResponse,
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node_class=ContractSyncNode,
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jsonl_handler_class=ContractJsonlHandler
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)
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# Collection 查询 SyncNode 类
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node_class = DomainRegistry.get_node_class("contract")
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# DataSource 查询 Handler
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handler_class = DomainRegistry.get_jsonl_handler("contract")
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"""
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from typing import Dict, Type, Optional, Any, Literal
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from dataclasses import dataclass, field
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from pydantic import BaseModel
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@dataclass
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class DomainRegistration:
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"""
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单个 domain 的注册信息
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包含：
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- node_class: SyncNode 子类（用于 Collection 恢复）
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- strategy_class: Strategy 子类（用于 SyncSystem 初始化）
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- handlers: 各种 Handler（用于 DataSource 初始化）
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"""
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node_type: str
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schema: Type[BaseModel]
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node_class: Type[Any] # Type[SyncNode[T]]，避免循环导入
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strategy_class: Optional[Type[Any]] = None # 可选，部分 domain 可能只读
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jsonl_handler_class: Optional[Type[Any]] = None
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api_handler_class: Optional[Type[Any]] = None
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db_handler_class: Optional[Type[Any]] = None
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metadata: Dict[str, Any] = field(default_factory=dict) # 额外元数据
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class DomainRegistry:
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"""
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Domain 注册中心
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职责分离：
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- Collection: 只关心 SyncNode 类（恢复类型）
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- DataSource: 只关心 Handler 类（执行层）
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- Strategy: 只关心 Strategy 类（业务逻辑）
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每个 domain 只注册一次，各模块按需获取。
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"""
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_registry: Dict[str, DomainRegistration] = {}
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_HANDLER_ATTRS: Dict[str, str] = {
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"jsonl": "jsonl_handler_class",
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"api": "api_handler_class",
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"db": "db_handler_class",
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}
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@classmethod
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def register(
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cls,
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node_type: str,
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schema: Type[BaseModel],
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node_class: Type[Any],
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strategy_class: Optional[Type[Any]] = None,
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jsonl_handler_class: Optional[Type[Any]] = None,
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api_handler_class: Optional[Type[Any]] = None,
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db_handler_class: Optional[Type[Any]] = None,
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**metadata
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) -> None:
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"""
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注册一个 domain
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Args:
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node_type: 节点类型（如 "contract"）
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schema: Pydantic Schema 类
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node_class: SyncNode 子类
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strategy_class: Strategy 子类（可选）
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jsonl_handler_class: JSONL Handler 类（可选）
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api_handler_class: API Handler 类（可选）
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db_handler_class: DB Handler 类（可选）
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**metadata: 额外的元数据
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Raises:
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ValueError: 如果 node_type 已注册
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"""
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if node_type in cls._registry:
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raise ValueError(f"Domain '{node_type}' already registered")
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cls._registry[node_type] = DomainRegistration(
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node_type=node_type,
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schema=schema,
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node_class=node_class,
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strategy_class=strategy_class,
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jsonl_handler_class=jsonl_handler_class,
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api_handler_class=api_handler_class,
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db_handler_class=db_handler_class,
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metadata=metadata
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)
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@classmethod
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def get_node_class(cls, node_type: str) -> Type[Any]:
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"""
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获取 SyncNode 类（用于 Collection 恢复）
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Args:
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node_type: 节点类型
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Returns:
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SyncNode 子类
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Raises:
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ValueError: 如果 node_type 未注册
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"""
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reg = cls._registry.get(node_type)
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if not reg:
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raise ValueError(f"Unknown node_type: '{node_type}'. Available: {list(cls._registry.keys())}")
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return reg.node_class
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@classmethod
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def get_strategy_class(cls, node_type: str) -> Optional[Type[Any]]:
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"""
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获取 Strategy 类（用于 SyncSystem）
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Args:
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node_type: 节点类型
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Returns:
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Strategy 类，如果未注册则返回 None
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"""
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reg = cls._registry.get(node_type)
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if not reg:
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raise ValueError(f"Unknown node_type: '{node_type}'")
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return reg.strategy_class
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@classmethod
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def get_handler(
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cls,
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node_type: str,
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datasource_type: Literal["jsonl", "api", "db"],
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) -> Optional[Type[Any]]:
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"""按 datasource 类型获取 Handler 类。"""
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reg = cls._registry.get(node_type)
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if not reg:
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raise ValueError(f"Unknown node_type: '{node_type}'")
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attr_name = cls._HANDLER_ATTRS.get(datasource_type)
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if attr_name is None:
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raise ValueError(
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f"Unsupported datasource_type: '{datasource_type}'. "
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f"Available: {sorted(cls._HANDLER_ATTRS.keys())}"
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)
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return getattr(reg, attr_name)
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@classmethod
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def register_db_handler(cls, node_type: str, db_handler_class: Type[Any]) -> None:
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"""为已注册 domain 补充 DB Handler。"""
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reg = cls._registry.get(node_type)
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if not reg:
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raise ValueError(f"Unknown node_type: '{node_type}'")
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reg.db_handler_class = db_handler_class
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@classmethod
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def get_schema(cls, node_type: str) -> Type[BaseModel]:
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"""获取 Schema 类"""
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reg = cls._registry.get(node_type)
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if not reg:
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raise ValueError(f"Unknown node_type: '{node_type}'")
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return reg.schema
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@classmethod
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def get_registration(cls, node_type: str) -> DomainRegistration:
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"""获取完整的注册信息"""
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reg = cls._registry.get(node_type)
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if not reg:
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raise ValueError(f"Unknown node_type: '{node_type}'")
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return reg
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@classmethod
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def is_registered(cls, node_type: str) -> bool:
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"""检查 node_type 是否已注册"""
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return node_type in cls._registry
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@classmethod
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def list_registered(cls) -> list[str]:
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"""列出所有已注册的 node_type"""
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return list(cls._registry.keys())
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@classmethod
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def get_registered_types(cls) -> list[str]:
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"""列出所有已注册的 node_type（list_registered 的别名）"""
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return cls.list_registered()
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@classmethod
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def clear(cls) -> None:
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"""清空注册表（仅用于测试）"""
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cls._registry.clear()
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@classmethod
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def print_registry(cls) -> None:
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"""打印所有注册的 domain 信息（用于调试）"""
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if not cls._registry:
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print("⚠️ DomainRegistry is empty - no domains registered")
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return
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print(f"\n{'='*80}")
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print(f"📋 DomainRegistry - {len(cls._registry)} domain(s) registered")
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print(f"{'='*80}\n")
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for node_type, reg in sorted(cls._registry.items()):
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print(f"🔹 {node_type}")
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print(f" Schema: {reg.schema.__name__}")
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print(f" Node Class: {reg.node_class.__name__}")
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print(f" Strategy Class: {reg.strategy_class.__name__ if reg.strategy_class else '❌ None'}")
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print(f" JSONL Handler: {reg.jsonl_handler_class.__name__ if reg.jsonl_handler_class else '❌ None'}")
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print(f" API Handler: {reg.api_handler_class.__name__ if reg.api_handler_class else '❌ None'}")
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print(f" DB Handler: {reg.db_handler_class.__name__ if reg.db_handler_class else '❌ None'}")
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if reg.metadata:
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print(f" Metadata: {reg.metadata}")
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print()
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print(f"{'='*80}\n")
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@classmethod
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def get_summary(cls) -> Dict[str, Dict[str, bool]]:
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"""
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获取注册摘要（用于自动化检查）
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Returns:
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字典，key 为 node_type，value 为各组件的注册状态
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Example:
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{
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"contract": {
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"has_node": True,
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"has_strategy": True,
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"has_jsonl_handler": True,
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"has_api_handler": True,
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"has_db_handler": False
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},
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...
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}
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"""
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summary = {}
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for node_type, reg in cls._registry.items():
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summary[node_type] = {
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"has_node": reg.node_class is not None,
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"has_strategy": reg.strategy_class is not None,
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"has_jsonl_handler": reg.jsonl_handler_class is not None,
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"has_api_handler": reg.api_handler_class is not None,
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"has_db_handler": reg.db_handler_class is not None,
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}
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return summary
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