Source code for airflow.providers.google.cloud.hooks.dataprep

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"""This module contains Google Dataprep hook."""
from __future__ import annotations

import json
from enum import Enum
from typing import Any
from urllib.parse import urljoin

import requests
from requests import HTTPError
from tenacity import retry, stop_after_attempt, wait_exponential

from airflow.hooks.base import BaseHook


def _get_field(extras: dict, field_name: str):
    """Get field from extra, first checking short name, then for backcompat we check for prefixed name."""
    backcompat_prefix = "extra__dataprep__"
    if field_name.startswith("extra__"):
        raise ValueError(
            f"Got prefixed name {field_name}; please remove the '{backcompat_prefix}' prefix "
            "when using this method."
        )
    if field_name in extras:
        return extras[field_name] or None
    prefixed_name = f"{backcompat_prefix}{field_name}"
    return extras.get(prefixed_name) or None


[docs]class JobGroupStatuses(str, Enum): """Types of job group run statuses."""
[docs] CREATED = "Created"
[docs] UNDEFINED = "undefined"
[docs] IN_PROGRESS = "InProgress"
[docs] COMPLETE = "Complete"
[docs] FAILED = "Failed"
[docs] CANCELED = "Canceled"
[docs]class GoogleDataprepHook(BaseHook): """ Hook for connection with Dataprep API. To get connection Dataprep with Airflow you need Dataprep token. https://clouddataprep.com/documentation/api#section/Authentication It should be added to the Connection in Airflow in JSON format. """
[docs] conn_name_attr = "dataprep_conn_id"
[docs] default_conn_name = "google_cloud_dataprep_default"
[docs] conn_type = "dataprep"
[docs] hook_name = "Google Dataprep"
def __init__(self, dataprep_conn_id: str = default_conn_name) -> None: super().__init__() self.dataprep_conn_id = dataprep_conn_id conn = self.get_connection(self.dataprep_conn_id) extras = conn.extra_dejson self._token = _get_field(extras, "token") self._base_url = _get_field(extras, "base_url") or "https://api.clouddataprep.com" @property def _headers(self) -> dict[str, str]: headers = { "Content-Type": "application/json", "Authorization": f"Bearer {self._token}", } return headers @retry(stop=stop_after_attempt(5), wait=wait_exponential(multiplier=1, max=10))
[docs] def get_jobs_for_job_group(self, job_id: int) -> dict[str, Any]: """ Get information about the batch jobs within a Cloud Dataprep job. :param job_id: The ID of the job that will be fetched """ endpoint_path = f"v4/jobGroups/{job_id}/jobs" url: str = urljoin(self._base_url, endpoint_path) response = requests.get(url, headers=self._headers) self._raise_for_status(response) return response.json()
@retry(stop=stop_after_attempt(5), wait=wait_exponential(multiplier=1, max=10))
[docs] def get_job_group(self, job_group_id: int, embed: str, include_deleted: bool) -> dict[str, Any]: """ Get the specified job group. A job group is a job that is executed from a specific node in a flow. :param job_group_id: The ID of the job that will be fetched :param embed: Comma-separated list of objects to pull in as part of the response :param include_deleted: if set to "true", will include deleted objects """ params: dict[str, Any] = {"embed": embed, "includeDeleted": include_deleted} endpoint_path = f"v4/jobGroups/{job_group_id}" url: str = urljoin(self._base_url, endpoint_path) response = requests.get(url, headers=self._headers, params=params) self._raise_for_status(response) return response.json()
@retry(stop=stop_after_attempt(5), wait=wait_exponential(multiplier=1, max=10))
[docs] def run_job_group(self, body_request: dict) -> dict[str, Any]: """ Creates a ``jobGroup``, which launches the specified job as the authenticated user. This performs the same action as clicking on the Run Job button in the application. To get recipe_id please follow the Dataprep API documentation https://clouddataprep.com/documentation/api#operation/runJobGroup. :param body_request: The identifier for the recipe you would like to run. """ endpoint_path = "v4/jobGroups" url: str = urljoin(self._base_url, endpoint_path) response = requests.post(url, headers=self._headers, data=json.dumps(body_request)) self._raise_for_status(response) return response.json()
@retry(stop=stop_after_attempt(5), wait=wait_exponential(multiplier=1, max=10))
[docs] def copy_flow( self, *, flow_id: int, name: str = "", description: str = "", copy_datasources: bool = False ) -> dict: """ Create a copy of the provided flow id, as well as all contained recipes. :param flow_id: ID of the flow to be copied :param name: Name for the copy of the flow :param description: Description of the copy of the flow :param copy_datasources: Bool value to define should copies of data inputs be made or not. """ endpoint_path = f"v4/flows/{flow_id}/copy" url: str = urljoin(self._base_url, endpoint_path) body_request = { "name": name, "description": description, "copyDatasources": copy_datasources, } response = requests.post(url, headers=self._headers, data=json.dumps(body_request)) self._raise_for_status(response) return response.json()
@retry(stop=stop_after_attempt(5), wait=wait_exponential(multiplier=1, max=10))
[docs] def delete_flow(self, *, flow_id: int) -> None: """ Delete the flow with the provided id. :param flow_id: ID of the flow to be copied """ endpoint_path = f"v4/flows/{flow_id}" url: str = urljoin(self._base_url, endpoint_path) response = requests.delete(url, headers=self._headers) self._raise_for_status(response)
@retry(stop=stop_after_attempt(5), wait=wait_exponential(multiplier=1, max=10))
[docs] def run_flow(self, *, flow_id: int, body_request: dict) -> dict: """ Runs the flow with the provided id copy of the provided flow id. :param flow_id: ID of the flow to be copied :param body_request: Body of the POST request to be sent. """ endpoint = f"v4/flows/{flow_id}/run" url: str = urljoin(self._base_url, endpoint) response = requests.post(url, headers=self._headers, data=json.dumps(body_request)) self._raise_for_status(response) return response.json()
@retry(stop=stop_after_attempt(5), wait=wait_exponential(multiplier=1, max=10))
[docs] def get_job_group_status(self, *, job_group_id: int) -> JobGroupStatuses: """ Check the status of the Dataprep task to be finished. :param job_group_id: ID of the job group to check """ endpoint = f"/v4/jobGroups/{job_group_id}/status" url: str = urljoin(self._base_url, endpoint) response = requests.get(url, headers=self._headers) self._raise_for_status(response) return response.json()
def _raise_for_status(self, response: requests.models.Response) -> None: try: response.raise_for_status() except HTTPError: self.log.error(response.json().get("exception")) raise

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