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from __future__ import annotations
from typing import TYPE_CHECKING, Any, Callable, Sequence
from airflow.exceptions import AirflowException
from airflow.providers.microsoft.azure.hooks.msgraph import KiotaRequestAdapterHook
from airflow.providers.microsoft.azure.triggers.msgraph import MSGraphTrigger, ResponseSerializer
from airflow.sensors.base import BaseSensorOperator
from airflow.triggers.temporal import TimeDeltaTrigger
if TYPE_CHECKING:
from datetime import timedelta
from io import BytesIO
from kiota_abstractions.request_information import QueryParams
from kiota_http.httpx_request_adapter import ResponseType
from msgraph_core import APIVersion
from airflow.utils.context import Context
[docs]class MSGraphSensor(BaseSensorOperator):
"""
A Microsoft Graph API sensor which allows you to poll an async REST call to the Microsoft Graph API.
:param url: The url being executed on the Microsoft Graph API (templated).
:param response_type: The expected return type of the response as a string. Possible value are: `bytes`,
`str`, `int`, `float`, `bool` and `datetime` (default is None).
:param method: The HTTP method being used to do the REST call (default is GET).
:param conn_id: The HTTP Connection ID to run the operator against (templated).
:param proxies: A dict defining the HTTP proxies to be used (default is None).
:param api_version: The API version of the Microsoft Graph API to be used (default is v1).
You can pass an enum named APIVersion which has 2 possible members v1 and beta,
or you can pass a string as `v1.0` or `beta`.
:param event_processor: Function which checks the response from MS Graph API (default is the
`default_event_processor` method) and returns a boolean. When the result is True, the sensor
will stop poking, otherwise it will continue until it's True or times out.
:param result_processor: Function to further process the response from MS Graph API
(default is lambda: context, response: response). When the response returned by the
`KiotaRequestAdapterHook` are bytes, then those will be base64 encoded into a string.
:param serializer: Class which handles response serialization (default is ResponseSerializer).
Bytes will be base64 encoded into a string, so it can be stored as an XCom.
"""
[docs] template_fields: Sequence[str] = (
"url",
"response_type",
"path_parameters",
"url_template",
"query_parameters",
"headers",
"data",
"conn_id",
)
def __init__(
self,
url: str,
response_type: ResponseType | None = None,
path_parameters: dict[str, Any] | None = None,
url_template: str | None = None,
method: str = "GET",
query_parameters: dict[str, QueryParams] | None = None,
headers: dict[str, str] | None = None,
data: dict[str, Any] | str | BytesIO | None = None,
conn_id: str = KiotaRequestAdapterHook.default_conn_name,
proxies: dict | None = None,
api_version: APIVersion | None = None,
event_processor: Callable[[Context, Any], bool] = lambda context, e: e.get("status") == "Succeeded",
result_processor: Callable[[Context, Any], Any] = lambda context, result: result,
serializer: type[ResponseSerializer] = ResponseSerializer,
retry_delay: timedelta | float = 60,
**kwargs,
):
super().__init__(retry_delay=retry_delay, **kwargs)
self.url = url
self.response_type = response_type
self.path_parameters = path_parameters
self.url_template = url_template
self.method = method
self.query_parameters = query_parameters
self.headers = headers
self.data = data
self.conn_id = conn_id
self.proxies = proxies
self.api_version = api_version
self.event_processor = event_processor
self.result_processor = result_processor
self.serializer = serializer()
[docs] def execute(self, context: Context):
self.defer(
trigger=MSGraphTrigger(
url=self.url,
response_type=self.response_type,
path_parameters=self.path_parameters,
url_template=self.url_template,
method=self.method,
query_parameters=self.query_parameters,
headers=self.headers,
data=self.data,
conn_id=self.conn_id,
timeout=self.timeout,
proxies=self.proxies,
api_version=self.api_version,
serializer=type(self.serializer),
),
method_name=self.execute_complete.__name__,
)
[docs] def retry_execute(
self,
context: Context,
) -> Any:
self.execute(context=context)
[docs] def execute_complete(
self,
context: Context,
event: dict[Any, Any] | None = None,
) -> Any:
"""
Execute callback when MSGraphSensor finishes execution.
This method gets executed automatically when MSGraphTrigger completes its execution.
"""
self.log.debug("context: %s", context)
if event:
self.log.debug("%s completed with %s: %s", self.task_id, event.get("status"), event)
if event.get("status") == "failure":
raise AirflowException(event.get("message"))
response = event.get("response")
self.log.debug("response: %s", response)
if response:
response = self.serializer.deserialize(response)
self.log.debug("deserialize response: %s", response)
is_done = self.event_processor(context, response)
self.log.debug("is_done: %s", is_done)
if is_done:
result = self.result_processor(context, response)
self.log.debug("processed response: %s", result)
return result
self.defer(
trigger=TimeDeltaTrigger(self.retry_delay),
method_name=self.retry_execute.__name__,
)
return None