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from typing import TypeVar, Any
from azure.core.pipeline import PipelineRequest, PipelineResponse
from azure.core.pipeline.transport import HttpResponse as LegacyHttpResponse, HttpRequest as LegacyHttpRequest
from azure.core.rest import HttpResponse, HttpRequest
from ._base import SansIOHTTPPolicy
HTTPResponseType = TypeVar("HTTPResponseType", HttpResponse, LegacyHttpResponse)
HTTPRequestType = TypeVar("HTTPRequestType", HttpRequest, LegacyHttpRequest)
class CustomHookPolicy(SansIOHTTPPolicy[HTTPRequestType, HTTPResponseType]):
"""A simple policy that enable the given callback
with the response.
:keyword callback raw_request_hook: Callback function. Will be invoked on request.
:keyword callback raw_response_hook: Callback function. Will be invoked on response.
"""
def __init__(self, **kwargs: Any): # pylint: disable=unused-argument,super-init-not-called
self._request_callback = kwargs.get("raw_request_hook")
self._response_callback = kwargs.get("raw_response_hook")
def on_request(self, request: PipelineRequest[HTTPRequestType]) -> None:
"""This is executed before sending the request to the next policy.
:param request: The PipelineRequest object.
:type request: ~azure.core.pipeline.PipelineRequest
"""
request_callback = request.context.options.pop("raw_request_hook", None)
if request_callback:
request.context["raw_request_hook"] = request_callback
request_callback(request)
elif self._request_callback:
self._request_callback(request)
response_callback = request.context.options.pop("raw_response_hook", None)
if response_callback:
request.context["raw_response_hook"] = response_callback
def on_response(
self, request: PipelineRequest[HTTPRequestType], response: PipelineResponse[HTTPRequestType, HTTPResponseType]
) -> None:
"""This is executed after the request comes back from the policy.
:param request: The PipelineRequest object.
:type request: ~azure.core.pipeline.PipelineRequest
:param response: The PipelineResponse object.
:type response: ~azure.core.pipeline.PipelineResponse
"""
response_callback = response.context.get("raw_response_hook")
if response_callback:
response_callback(response)
elif self._response_callback:
self._response_callback(response)