143 lines
4.2 KiB
Python
143 lines
4.2 KiB
Python
"""Client 访问 Admin 的稳定边界和简单数据对象。
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AdminGateway 只有领取任务、提交成功结果、提交失败结果三个业务方法。
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业务层不应直接依赖 HTTP 请求或 Mock 的内部实现。
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"""
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from abc import ABC, abstractmethod
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from dataclasses import dataclass, field
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from typing import Any, Mapping, Optional, Tuple
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from .task_models import TaskType
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@dataclass(frozen=True)
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class ClientInfo:
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"""发起领取请求的 Client 身份，不保存访问令牌。"""
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client_id: str
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def __post_init__(self) -> None:
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if not self.client_id.strip():
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raise ValueError("client_id 不能为空")
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@dataclass(frozen=True)
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class AndroidDeviceInfo:
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"""领取任务时上报的 Android 设备信息。"""
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address: str
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platform: str = "android"
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pdd_package: str = "com.xunmeng.pinduoduo"
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def __post_init__(self) -> None:
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if not self.address.strip():
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raise ValueError("设备地址不能为空")
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if self.platform != "android":
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raise ValueError("当前只支持 android 平台")
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if not self.pdd_package.strip():
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raise ValueError("PDD 包名不能为空")
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@dataclass(frozen=True)
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class ClaimCapabilities:
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"""Client 领取任务时声明的设备与执行能力。"""
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device: AndroidDeviceInfo
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supported_types: Tuple[TaskType, ...] = (
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TaskType.COLLECT,
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TaskType.PURCHASE,
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)
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purchase_mode: str = "dry_run"
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schema_versions: Tuple[int, ...] = (1,)
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def __post_init__(self) -> None:
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if not self.supported_types:
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raise ValueError("supported_types 不能为空")
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if any(not isinstance(value, TaskType) for value in self.supported_types):
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raise ValueError("supported_types 必须使用 TaskType")
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if self.purchase_mode not in {"dry_run", "live"}:
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raise ValueError("purchase_mode 只能是 dry_run 或 live")
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if not self.schema_versions or any(
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version <= 0 for version in self.schema_versions
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):
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raise ValueError("schema_versions 必须是正整数")
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@dataclass(frozen=True)
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class AdminTask:
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"""Admin 派发给 Client 的一个任务。"""
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task_id: str
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task_type: TaskType
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version: int
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priority: int
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payload: Mapping[str, Any] = field(default_factory=dict)
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created_at: str = ""
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updated_at: str = ""
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def __post_init__(self) -> None:
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if not self.task_id.strip():
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raise ValueError("task_id 不能为空")
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if not isinstance(self.task_type, TaskType):
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raise ValueError("task_type 必须使用 TaskType")
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if self.version <= 0:
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raise ValueError("version 必须大于 0")
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if not isinstance(self.payload, Mapping):
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raise ValueError("payload 必须是对象")
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@dataclass(frozen=True)
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class SubmissionReceipt:
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"""Admin 已接收并保存一次提交的确认。"""
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accepted: bool
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result_id: str
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accepted_at: str
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class AdminGatewayError(RuntimeError):
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"""带稳定错误代码和可重试标志的 Admin 边界错误。"""
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def __init__(
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self,
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code: str,
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message: str,
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retryable: bool,
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request_id: str = "",
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details: Optional[Mapping[str, Any]] = None,
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):
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super().__init__(message)
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self.code = code
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self.retryable = retryable
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self.request_id = request_id
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self.details = dict(details or {})
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class AdminGateway(ABC):
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"""Admin 边界；不得增加状态查询、心跳或租约方法。"""
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@abstractmethod
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def claim_next(
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self, client: ClientInfo, capabilities: ClaimCapabilities
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) -> Optional[AdminTask]:
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"""领取至多一个分配给当前 Client 的任务。"""
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@abstractmethod
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def submit_result(
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self,
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task_id: str,
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idempotency_key: str,
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result: Mapping[str, Any],
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) -> SubmissionReceipt:
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"""幂等提交采集或采购成功结果。"""
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@abstractmethod
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def submit_failure(
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self,
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task_id: str,
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idempotency_key: str,
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failure: Mapping[str, Any],
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) -> SubmissionReceipt:
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"""幂等提交失败、取消或人工处理结果。"""
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