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Co-authored-by: xiaoxia <dev@xiaoxiajianji.com> Co-committed-by: xiaoxia <dev@xiaoxiajianji.com>
227 lines
7.8 KiB
Python
227 lines
7.8 KiB
Python
"""Module Registry - 模块注册中心
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提供功能模块的动态注册、发现和管理能力。所有扩展模块(如 AI 配音、
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多平台发布、去重检测等)通过此注册中心声明自身能力、依赖和配额消耗规则。
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设计原则:
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- 模块自描述:每个模块声明自己的能力、依赖、配额规则
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- 松耦合:模块间通过注册中心间接通信,不直接依赖
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- 可扩展:新模块只需注册即可被系统识别,无需修改核心代码
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"""
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from __future__ import annotations
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import logging
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from collections.abc import Callable
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from dataclasses import dataclass, field
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from enum import Enum
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from typing import Any, Optional
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logger = logging.getLogger(__name__)
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class ModuleStatus(str, Enum):
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"""模块运行状态"""
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REGISTERED = "registered" # 已注册,未激活
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ACTIVE = "active" # 已激活,可用
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DISABLED = "disabled" # 已禁用(管理员/Feature Flag 控制)
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ERROR = "error" # 注册或初始化出错
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@dataclass
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class QuotaRule:
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"""模块定义的配额消耗规则
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描述该模块消耗哪些配额维度,以及每个操作消耗多少。
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例如:AI 配音模块每生成一条配音消耗 1 个 ai_voice_credit。
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"""
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dimension: str # 配额维度名,如 "ai_voice_credits", "storage_gb"
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per_operation: float # 每次操作消耗量
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description: str = "" # 人类可读描述
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@dataclass
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class ModuleCapability:
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"""模块声明的一个能力
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能力是模块对外暴露的可调用功能单元。
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"""
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name: str # 能力名,如 "generate_voice"
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description: str = "" # 人类可读描述
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quota_rules: list[QuotaRule] = field(default_factory=list) # 该能力消耗的配额规则
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metadata: dict[str, Any] = field(default_factory=dict) # 扩展元数据
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@dataclass
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class Module:
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"""模块注册信息
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每个扩展模块通过 Module 描述自身,注册到 ModuleRegistry。
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"""
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name: str # 模块唯一标识,如 "ai_voice"
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version: str = "1.0.0" # 模块版本
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description: str = "" # 人类可读描述
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capabilities: list[ModuleCapability] = field(default_factory=list)
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dependencies: list[str] = field(default_factory=list) # 依赖的其他模块名
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status: ModuleStatus = ModuleStatus.REGISTERED
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config: dict[str, Any] = field(default_factory=dict) # 模块配置
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_init_func: Optional[Callable] = field(default=None, repr=False) # 初始化回调
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def activate(self) -> None:
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"""激活模块"""
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if self.status == ModuleStatus.ERROR:
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logger.error(f"Cannot activate module '{self.name}': in error state")
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return
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self.status = ModuleStatus.ACTIVE
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logger.info(f"Module '{self.name}' v{self.version} activated")
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def disable(self) -> None:
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"""禁用模块"""
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self.status = ModuleStatus.DISABLED
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logger.info(f"Module '{self.name}' disabled")
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class ModuleRegistry:
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"""模块注册中心
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单例模式,全局唯一实例(module_registry)。
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提供模块注册、发现、依赖检查、能力查询等功能。
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Usage:
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from packages.infrastructure.module_registry import module_registry
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# 注册模块
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module_registry.register(Module(
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name="ai_voice",
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version="1.0.0",
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description="AI 配音生成模块",
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capabilities=[
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ModuleCapability(
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name="generate_voice",
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description="文本转配音",
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quota_rules=[QuotaRule("ai_voice_credits", 1.0, "每次配音消耗 1 积分")],
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),
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],
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))
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# 查询
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mod = module_registry.get("ai_voice")
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has_cap = module_registry.has_capability("generate_voice")
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"""
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def __init__(self) -> None:
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self._modules: dict[str, Module] = {}
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def register(self, module: Module) -> None:
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"""注册一个模块
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Args:
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module: 要注册的模块
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Raises:
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ValueError: 模块名已存在
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"""
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if module.name in self._modules:
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raise ValueError(f"Module '{module.name}' already registered")
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# 检查依赖是否已注册
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for dep in module.dependencies:
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if dep not in self._modules:
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logger.warning(
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f"Module '{module.name}' depends on '{dep}' which is not yet registered. "
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f"Call check_dependencies() after all modules are registered."
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)
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self._modules[module.name] = module
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logger.info(f"Module '{module.name}' v{module.version} registered")
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# 自动尝试激活
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if self.check_dependencies(module.name):
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module.activate()
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def unregister(self, name: str) -> None:
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"""注销一个模块"""
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if name not in self._modules:
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raise KeyError(f"Module '{name}' not found")
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# 检查是否有其他模块依赖它
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dependents = [m.name for m in self._modules.values() if name in m.dependencies and m.name != name]
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if dependents:
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raise ValueError(f"Cannot unregister module '{name}': depended on by {dependents}")
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del self._modules[name]
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logger.info(f"Module '{name}' unregistered")
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def get(self, name: str) -> Optional[Module]:
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"""按名称获取模块,不存在返回 None"""
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return self._modules.get(name)
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def list_modules(self, status: Optional[ModuleStatus] = None) -> list[Module]:
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"""列出所有模块,可按状态过滤"""
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modules = list(self._modules.values())
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if status is not None:
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modules = [m for m in modules if m.status == status]
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return modules
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def has_capability(self, capability_name: str) -> bool:
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"""检查是否有任何已激活模块提供指定能力"""
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for module in self._modules.values():
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if module.status != ModuleStatus.ACTIVE:
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continue
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for cap in module.capabilities:
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if cap.name == capability_name:
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return True
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return False
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def get_capability(self, capability_name: str) -> Optional[ModuleCapability]:
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"""获取指定能力的定义,返回第一个匹配的"""
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for module in self._modules.values():
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if module.status != ModuleStatus.ACTIVE:
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continue
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for cap in module.capabilities:
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if cap.name == capability_name:
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return cap
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return None
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def get_quota_rules(self, capability_name: str) -> list[QuotaRule]:
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"""获取指定能力的配额消耗规则"""
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cap = self.get_capability(capability_name)
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if cap is None:
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return []
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return cap.quota_rules
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def check_dependencies(self, module_name: str) -> bool:
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"""检查指定模块的所有依赖是否都已注册且激活"""
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module = self._modules.get(module_name)
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if module is None:
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return False
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for dep in module.dependencies:
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dep_module = self._modules.get(dep)
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if dep_module is None or dep_module.status != ModuleStatus.ACTIVE:
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return False
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return True
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def get_active_capabilities(self) -> dict[str, list[str]]:
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"""获取所有已激活模块的能力列表
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Returns:
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{module_name: [capability_name, ...]}
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"""
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result = {}
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for module in self._modules.values():
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if module.status == ModuleStatus.ACTIVE and module.capabilities:
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result[module.name] = [cap.name for cap in module.capabilities]
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return result
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def clear(self) -> None:
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"""清空所有注册(仅用于测试)"""
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self._modules.clear()
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# 全局单例
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module_registry = ModuleRegistry()
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