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import sys
import warnings
from typing import TYPE_CHECKING

    from airflow.utils.context import Context

if sys.version_info >= (3, 8):
    from functools import cached_property
    from cached_property import cached_property

from airflow.models import BaseOperator
from import GlueCrawlerHook

[docs]class GlueCrawlerOperator(BaseOperator): """ Creates, updates and triggers an AWS Glue Crawler. AWS Glue Crawler is a serverless service that manages a catalog of metadata tables that contain the inferred schema, format and data types of data stores within the AWS cloud. .. seealso:: For more information on how to use this operator, take a look at the guide: :ref:`howto/operator:GlueCrawlerOperator` :param config: Configurations for the AWS Glue crawler :param aws_conn_id: aws connection to use :param poll_interval: Time (in seconds) to wait between two consecutive calls to check crawler status :param wait_for_completion: Whether or not wait for crawl execution completion. (default: True) """
[docs] ui_color = '#ededed'
def __init__( self, config, aws_conn_id='aws_default', poll_interval: int = 5, wait_for_completion: bool = True, **kwargs, ): super().__init__(**kwargs) self.aws_conn_id = aws_conn_id self.poll_interval = poll_interval self.wait_for_completion = wait_for_completion self.config = config @cached_property
[docs] def hook(self) -> GlueCrawlerHook: """Create and return an GlueCrawlerHook.""" return GlueCrawlerHook(self.aws_conn_id)
[docs] def execute(self, context: 'Context'): """ Executes AWS Glue Crawler from Airflow :return: the name of the current glue crawler. """ crawler_name = self.config['Name'] if self.hook.has_crawler(crawler_name): self.hook.update_crawler(**self.config) else: self.hook.create_crawler(**self.config)"Triggering AWS Glue Crawler") self.hook.start_crawler(crawler_name) if self.wait_for_completion:"Waiting for AWS Glue Crawler") self.hook.wait_for_crawler_completion(crawler_name=crawler_name, poll_interval=self.poll_interval) return crawler_name
[docs]class AwsGlueCrawlerOperator(GlueCrawlerOperator): """ This operator is deprecated. Please use :class:``. """ def __init__(self, *args, **kwargs): warnings.warn( "This operator is deprecated. " "Please use :class:``.", DeprecationWarning, stacklevel=2, ) super().__init__(*args, **kwargs)

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