Kris
1003b842e1
1. 新增FrameworkError作为框架技术异常基类，统一处理非业务校验类错误 2. 为所有异常类添加error_code和trace_id支持，完善异常序列化能力 3. 将多处原生异常、RuntimeError替换为标准领域/框架异常 4. 优化WSDL解析逻辑，添加详细的警告日志便于排查问题
265 lines
10 KiB
Python
265 lines
10 KiB
Python
"""Dynamics365 discover / preview_tools / create_tools handler 实现。
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handler 签名遵循 ``OperationHandler`` 协议：
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``(source_type: str, system_config: dict[str, Any]) -> Awaitable[Any]``。
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handler 内部职责：
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1. 从 ``system_config`` 提取 ``base_url`` / ``auth_config`` / ``_resolved_token`` 等
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2. 构建 ``auth_headers``（token 由 use_cases 层注入到 ``system_config["_resolved_token"]``）
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3. 构造带 429 退避的 ``request_fn``，注入到生成器 payload
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4. 调用 ``discover_dataverse_metadata`` 或 ``Dynamics365ConfigGenerator``
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product_line 分派（首期仅 dataverse）：
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- ``dataverse``：走 ``_discover_dataverse`` 路径
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- ``finance_operations``：P1 延后，抛 ``NotImplementedError``
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429 退避分层（见设计文档 §6.7）：
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- discover/preview/create 阶段：本模块 ``_request_with_retry`` 实现（解析 Retry-After）
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- 运行时工具执行：通过工具 ``retry_policy.retry_status_codes: [429]`` 配置（见 generators.py）
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"""
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from __future__ import annotations
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import asyncio
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from collections.abc import Awaitable, Callable
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from typing import TYPE_CHECKING, Any
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from yuxi.external_systems.exceptions import (
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AuthError,
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DomainValidationError,
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ExecutionError,
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FrameworkError,
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RateLimitExceededError,
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)
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from yuxi.external_systems.integrations.dynamics365.error_extractor import (
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map_dataverse_error,
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)
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from yuxi.external_systems.integrations.dynamics365.generators import (
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Dynamics365ConfigGenerator,
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)
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from yuxi.external_systems.integrations.dynamics365.odata_metadata import (
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discover_dataverse_metadata,
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)
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from yuxi.external_systems.integrations.schemas import GeneratedToolsDraft
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if TYPE_CHECKING:
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import httpx
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# discover/preview/create 阶段 429 退避参数
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_RETRY_MAX_ATTEMPTS = 5
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_RETRY_BASE_DELAY = 1.0
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# Dataverse 通用请求头（除 Authorization 外）
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_DATAVERSE_HEADERS: dict[str, str] = {
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"OData-Version": "4.0",
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"OData-MaxVersion": "4.0",
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"Accept": "application/json",
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}
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def _build_auth_headers(system_config: dict[str, Any]) -> dict[str, str]:
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"""从 system_config 提取 token，构建 Dataverse 请求头。
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system_config 中 token 由 use_cases 层通过 ``token_manager.get_token`` 预处理后
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注入到 ``system_config["_resolved_token"]["access_token"]``。handler 不自行换取
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token——token 获取是 use_cases 层的职责。
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"""
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token_info = system_config.get("_resolved_token")
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if not isinstance(token_info, dict) or not token_info.get("access_token"):
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raise AuthError("dynamics365: system_config 缺少 _resolved_token，use_cases 层未注入 token")
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access_token = token_info["access_token"]
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headers = dict(_DATAVERSE_HEADERS)
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headers["Authorization"] = f"Bearer {access_token}"
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headers["Content-Type"] = "application/json; charset=utf-8"
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return headers
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def _resolve_base_url(system_config: dict[str, Any]) -> str:
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"""从 system_config 提取 base_url。"""
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connection_config = system_config.get("connection_config") or {}
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base_url = connection_config.get("base_url")
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if not base_url:
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raise DomainValidationError("dynamics365: system_config.connection_config.base_url 不能为空")
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return str(base_url)
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def _resolve_product_line(system_config: dict[str, Any]) -> str:
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"""从 system_config 提取 product_line，默认 dataverse。"""
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connection_config = system_config.get("connection_config") or {}
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return str(connection_config.get("product_line", "dataverse"))
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def _resolve_entity_filter(system_config: dict[str, Any]) -> list[str] | None:
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"""从 system_config 提取 entity_filter 白名单。"""
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discovery_options = system_config.get("discovery_options") or {}
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return discovery_options.get("entity_filter")
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async def _request_with_retry(
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method: str,
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url: str,
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headers: dict[str, str],
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*,
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max_retries: int = _RETRY_MAX_ATTEMPTS,
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base_delay: float = _RETRY_BASE_DELAY,
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) -> httpx.Response:
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"""handler 内部 HTTP 调用的 429 退避（仅用于 discover/preview/create 阶段）。
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优先使用响应头 ``Retry-After``，否则指数退避（``base_delay * 2 ** attempt``）。
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运行时工具执行的 429 退避由框架 executor + 工具 retry_policy 处理，
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不在此函数范围内。
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非 2xx 响应（非 429）通过 ``map_dataverse_error`` 转换为 ExternalSystemError 子类。
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网络层异常（超时 / 连接错误）转换为 ``ExecutionError``（遵循设计文档 §8.5）。
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"""
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import httpx
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try:
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async with httpx.AsyncClient() as client:
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last_response: httpx.Response | None = None
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for attempt in range(max_retries + 1):
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response = await client.request(method, url, headers=headers)
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if response.status_code != 429:
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last_response = response
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break
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if attempt == max_retries:
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retry_after_header = response.headers.get("Retry-After", "60")
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try:
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retry_after = int(retry_after_header)
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except ValueError:
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retry_after = 60
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raise RateLimitExceededError(
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f"Dataverse 限流，已重试 {max_retries} 次仍失败: {url}",
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retry_after=retry_after,
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limit_type="qps",
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)
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# 优先使用 Retry-After 头，否则指数退避
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retry_after_header = response.headers.get("Retry-After")
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if retry_after_header:
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try:
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delay = float(retry_after_header)
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except ValueError:
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delay = base_delay * (2**attempt)
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else:
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delay = base_delay * (2**attempt)
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await asyncio.sleep(delay)
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except httpx.RequestError as exc:
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raise ExecutionError(f"Dataverse 网络请求失败: {exc}") from exc
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assert last_response is not None
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if last_response.is_success:
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return last_response
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# 非 2xx：解析错误 body 并映射为 ExternalSystemError 子类
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try:
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error_body = last_response.json()
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except Exception:
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error_body = {"error": {"message": last_response.text}}
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raise map_dataverse_error(last_response.status_code, error_body)
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def _make_request_fn() -> Callable[[str, str, dict[str, str]], Awaitable[httpx.Response]]:
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"""构造带 429 退避的 request_fn，供 discover_dataverse_metadata 使用。"""
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async def request_fn(method: str, url: str, headers: dict[str, str]) -> httpx.Response:
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return await _request_with_retry(method, url, headers)
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return request_fn
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async def discover_dynamics365(
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source_type: str,
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system_config: dict[str, Any],
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) -> list[dict[str, Any]]:
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"""discover handler：发现 Dataverse 实体元数据摘要。
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Returns:
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实体摘要列表，每项含 ``logical_name`` / ``display_name`` / ``entity_set_name`` /
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``primary_id_attribute``。
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"""
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_ensure_dataverse_product_line(system_config)
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base_url = _resolve_base_url(system_config)
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auth_headers = _build_auth_headers(system_config)
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entity_filter = _resolve_entity_filter(system_config)
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request_fn = _make_request_fn()
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metadata = await discover_dataverse_metadata(
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base_url,
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auth_headers,
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entity_filter=entity_filter,
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request_fn=request_fn,
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)
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return [
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{
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"logical_name": e.logical_name,
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"schema_name": e.schema_name,
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"display_name": e.display_name,
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"entity_set_name": e.entity_set_name,
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"primary_id_attribute": e.primary_id_attribute,
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"attribute_count": len(e.attributes),
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"navigation_property_count": len(e.navigation_properties),
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}
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for e in metadata
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]
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async def preview_dynamics365_tools(
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source_type: str,
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system_config: dict[str, Any],
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) -> list[dict[str, Any]]:
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"""preview_tools handler：预览将生成的工具列表。
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Returns:
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工具预览列表，每项为 ExternalToolCreateInput 兼容的 dict。
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"""
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_ensure_dataverse_product_line(system_config)
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payload = _build_generator_payload(system_config)
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generator = Dynamics365ConfigGenerator()
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return await generator.generate(payload)
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async def create_dynamics365_tools(
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source_type: str,
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system_config: dict[str, Any],
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) -> GeneratedToolsDraft:
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"""create_tools handler：生成工具草稿（不直接持久化）。
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Returns:
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GeneratedToolsDraft，由 use_cases 层统一持久化。
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"""
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_ensure_dataverse_product_line(system_config)
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payload = _build_generator_payload(system_config)
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generator = Dynamics365ConfigGenerator()
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tool_configs = await generator.generate(payload)
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return GeneratedToolsDraft(tool_configs=tool_configs, override_existing=False)
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def _ensure_dataverse_product_line(system_config: dict[str, Any]) -> None:
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"""校验 product_line，首期仅支持 dataverse。"""
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product_line = _resolve_product_line(system_config)
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if product_line == "dataverse":
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return
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if product_line == "finance_operations":
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raise FrameworkError("F&O 产品线将在 P1 实现")
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raise DomainValidationError(f"未知的 product_line: {product_line}")
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def _build_generator_payload(system_config: dict[str, Any]) -> dict[str, Any]:
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"""从 system_config 构造生成器 payload。
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生成器 payload 是 system_config 的子集，包含：
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- base_url: str
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- auth_headers: dict[str, str]
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- auth_config: dict
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- auth_type: str
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- entity_filter: list[str] | None
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- request_fn: 带 429 退避的 HTTP 请求函数
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"""
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return {
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"base_url": _resolve_base_url(system_config),
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"auth_headers": _build_auth_headers(system_config),
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"auth_config": system_config.get("auth_config") or {},
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"auth_type": system_config.get("auth_type", "oauth2_client_credentials"),
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"entity_filter": _resolve_entity_filter(system_config),
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"request_fn": _make_request_fn(),
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}
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