Source code for airflow.providers.amazon.aws.operators.glue_crawler
## Licensed to the Apache Software Foundation (ASF) under one# or more contributor license agreements. See the NOTICE file# distributed with this work for additional information# regarding copyright ownership. The ASF licenses this file# to you under the Apache License, Version 2.0 (the# "License"); you may not use this file except in compliance# with the License. You may obtain a copy of the License at## http://www.apache.org/licenses/LICENSE-2.0## Unless required by applicable law or agreed to in writing,# software distributed under the License is distributed on an# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY# KIND, either express or implied. See the License for the# specific language governing permissions and limitations# under the License.from__future__importannotationsfromtypingimportTYPE_CHECKING,SequenceifTYPE_CHECKING:fromairflow.utils.contextimportContextfromairflow.compat.functoolsimportcached_propertyfromairflow.modelsimportBaseOperatorfromairflow.providers.amazon.aws.hooks.glue_crawlerimportGlueCrawlerHook
[docs]classGlueCrawlerOperator(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]defhook(self)->GlueCrawlerHook:"""Create and return an GlueCrawlerHook."""returnGlueCrawlerHook(self.aws_conn_id)
[docs]defexecute(self,context:Context):""" Executes AWS Glue Crawler from Airflow :return: the name of the current glue crawler. """crawler_name=self.config["Name"]ifself.hook.has_crawler(crawler_name):self.hook.update_crawler(**self.config)else:self.hook.create_crawler(**self.config)self.log.info("Triggering AWS Glue Crawler")self.hook.start_crawler(crawler_name)ifself.wait_for_completion:self.log.info("Waiting for AWS Glue Crawler")self.hook.wait_for_crawler_completion(crawler_name=crawler_name,poll_interval=self.poll_interval)returncrawler_name