michalslowikowski00 commented on a change in pull request #10947: URL: https://github.com/apache/airflow/pull/10947#discussion_r497379355
########## File path: airflow/providers/amazon/aws/transfers/glacier_to_gcs.py ########## @@ -0,0 +1,122 @@ +# +# 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. +import tempfile +from typing import Optional, Union, Sequence + +from airflow.models import BaseOperator +from airflow.providers.amazon.aws.hooks.glacier import GlacierHook +from airflow.providers.google.cloud.hooks.gcs import GCSHook +from airflow.utils.decorators import apply_defaults + + +class GlacierToGCSOperator(BaseOperator): + """ + This operator transfers data from Glacier to Google Cloud Storage + + .. note:: + Please be warn that GlacierToGCSOperator may depends on memory usage. + Transferring big files may not working well. + + .. seealso:: + For more information on how to use this operator, take a look at the guide: + :ref:`howto/operator:GlacierToGCSOperator` + + :param aws_conn_id: The reference to the AWS connection details + :type aws_conn_id: str + :param gcp_conn_id: The reference to the GCP connection details + :type gcp_conn_id: str + :param vault_name: the Glacier vault on which job is executed + :type vault_name: string + :param bucket_name: the Google Cloud Storage bucket where the data will be transferred + :type bucket_name: str + :param object_name: the name of the object to check in the Google cloud + storage bucket. + :type object_name: str + :param gzip: option to compress local file or file data for upload + :type gzip: bool + :param chunk_size: size of chunk in bytes the that will downloaded from Glacier vault + :type chunk_size: int + :param delegate_to: The account to impersonate using domain-wide delegation of authority, + if any. For this to work, the service account making the request must have + domain-wide delegation enabled. + :type delegate_to: str + :param google_impersonation_chain: Optional Google service account to impersonate using + short-term credentials, or chained list of accounts required to get the access_token + of the last account in the list, which will be impersonated in the request. + If set as a string, the account must grant the originating account + the Service Account Token Creator IAM role. + If set as a sequence, the identities from the list must grant + Service Account Token Creator IAM role to the directly preceding identity, with first + account from the list granting this role to the originating account (templated). + :type impersonation_chain: Union[str, Sequence[str]] + """ + + template_fields = ("vault_name", "bucket_name", "object_name") + + @apply_defaults + def __init__( + self, + *, + aws_conn_id="aws_default", + gcp_conn_id="google_cloud_default", + vault_name: str, + bucket_name: str, + object_name: str, + gzip: bool, + chunk_size=1024, + delegate_to=None, + google_impersonation_chain: Optional[Union[str, Sequence[str]]] = None, + **kwargs, + ): + super().__init__(**kwargs) + self.aws_conn_id = aws_conn_id + self.gcp_conn_id = gcp_conn_id + self.vault_name = vault_name + self.bucket_name = bucket_name + self.object_name = object_name + self.gzip = gzip + self.chunk_size = chunk_size + self.delegate_to = delegate_to + self.impersonation_chain = google_impersonation_chain + + def execute(self, context): + glacier_hook = GlacierHook(aws_conn_id=self.aws_conn_id) + gcs_hook = GCSHook( + gcp_conn_id=self.gcp_conn_id, + delegate_to=self.delegate_to, + impersonation_chain=self.impersonation_chain, + ) + job_id = glacier_hook.retrieve_inventory(vault_name=self.vault_name) + + with tempfile.NamedTemporaryFile() as temp_file: + glacier_data = glacier_hook.retrieve_inventory_results( + vault_name=self.vault_name, job_id=job_id["jobId"] + ) + # Read the file content in chunks using StreamingBody + # https://botocore.amazonaws.com/v1/documentation/api/latest/reference/response.html + stream = glacier_data["body"] + for chunk in stream.iter_chunk(chunk_size=self.chunk_size): + temp_file.write(chunk) + temp_file.flush() + gcs_hook.upload( + bucket_name=self.bucket_name, + object_name=self.object_name, + filename=temp_file.name, + gzip=self.gzip, + ) + return f"{self.bucket_name}/{self.object_name}" Review comment: `bucket_name/object_name`, is it ok? ---------------------------------------------------------------- This is an automated message from the Apache Git Service. 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