Source code for airflow.providers.google.cloud.transfers.azure_fileshare_to_gcs
## 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__importannotationsimportwarningsfromcollections.abcimportSequencefromtempfileimportNamedTemporaryFilefromtypingimportTYPE_CHECKINGfromairflow.exceptionsimportAirflowException,AirflowProviderDeprecationWarningfromairflow.modelsimportBaseOperatorfromairflow.providers.google.cloud.hooks.gcsimportGCSHook,_parse_gcs_url,gcs_object_is_directorytry:fromairflow.providers.microsoft.azure.hooks.fileshareimportAzureFileShareHookexceptModuleNotFoundErrorase:fromairflow.exceptionsimportAirflowOptionalProviderFeatureExceptionraiseAirflowOptionalProviderFeatureException(e)ifTYPE_CHECKING:fromairflow.utils.contextimportContext
[docs]classAzureFileShareToGCSOperator(BaseOperator):""" Sync an Azure FileShare directory with a Google Cloud Storage destination path. Does not include subdirectories. May be filtered by prefix. :param share_name: The Azure FileShare share where to find the objects. (templated) :param directory_name: (Deprecated) Path to Azure FileShare directory which content is to be transferred. Defaults to root directory (templated) :param directory_path: (Optional) Path to Azure FileShare directory which content is to be transferred. Defaults to root directory. Use this instead of ``directory_name``. (templated) :param prefix: Prefix string which filters objects whose name begin with such prefix. (templated) :param azure_fileshare_conn_id: The source WASB connection :param gcp_conn_id: (Optional) The connection ID used to connect to Google Cloud. :param dest_gcs: The destination Google Cloud Storage bucket and prefix where you want to store the files. (templated) :param replace: Whether you want to replace existing destination files or not. :param gzip: Option to compress file for upload :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). Note that ``share_name``, ``directory_path``, ``prefix``, and ``dest_gcs`` are templated, so you can use variables in them if you wish. """
def__init__(self,*,share_name:str,dest_gcs:str,directory_name:str|None=None,directory_path:str|None=None,prefix:str="",azure_fileshare_conn_id:str="azure_fileshare_default",gcp_conn_id:str="google_cloud_default",replace:bool=False,gzip:bool=False,google_impersonation_chain:str|Sequence[str]|None=None,**kwargs,):super().__init__(**kwargs)self.share_name=share_nameself.directory_path=directory_pathself.directory_name=directory_nameifself.directory_pathisNoneandself.directory_nameisnotNone:self.directory_path=self.directory_namewarnings.warn("Use 'directory_path' instead of 'directory_name'.",AirflowProviderDeprecationWarning,stacklevel=2,)self.prefix=prefixself.azure_fileshare_conn_id=azure_fileshare_conn_idself.gcp_conn_id=gcp_conn_idself.dest_gcs=dest_gcsself.replace=replaceself.gzip=gzipself.google_impersonation_chain=google_impersonation_chaindef_check_inputs(self)->None:ifself.dest_gcsandnotgcs_object_is_directory(self.dest_gcs):self.log.info("Destination Google Cloud Storage path is not a valid "'"directory", define a path that ends with a slash "/" or '"leave it empty for the root of the bucket.")raiseAirflowException('The destination Google Cloud Storage path must end with a slash "/" or be empty.')
[docs]defexecute(self,context:Context):self._check_inputs()azure_fileshare_hook=AzureFileShareHook(share_name=self.share_name,azure_fileshare_conn_id=self.azure_fileshare_conn_id,directory_path=self.directory_path,)files=azure_fileshare_hook.list_files()gcs_hook=GCSHook(gcp_conn_id=self.gcp_conn_id,impersonation_chain=self.google_impersonation_chain,)dest_gcs_bucket,dest_gcs_object_prefix=_parse_gcs_url(self.dest_gcs)ifnotself.replace:# if we are not replacing -> list all files in the GCS bucket# and only keep those files which are present in# S3 and not in Google Cloud Storageexisting_files_prefixed=gcs_hook.list(dest_gcs_bucket,prefix=dest_gcs_object_prefix)existing_files=[]# Remove the object prefix itself, an empty directory was foundifdest_gcs_object_prefixinexisting_files_prefixed:existing_files_prefixed.remove(dest_gcs_object_prefix)# Remove the object prefix from all object string pathsforfileinexisting_files_prefixed:iffile.startswith(dest_gcs_object_prefix):existing_files.append(file[len(dest_gcs_object_prefix):])else:existing_files.append(file)files=list(set(files)-set(existing_files))iffiles:self.log.info("%s files are going to be synced.",len(files))ifself.directory_pathisNone:raiseRuntimeError("The directory_name must be set!.")forfileinfiles:azure_fileshare_hook=AzureFileShareHook(share_name=self.share_name,azure_fileshare_conn_id=self.azure_fileshare_conn_id,directory_path=self.directory_path,file_path=file,)withNamedTemporaryFile()astemp_file:azure_fileshare_hook.get_file_to_stream(stream=temp_file)temp_file.flush()# There will always be a '/' before file because it is# enforced at instantiation timedest_gcs_object=dest_gcs_object_prefix+filegcs_hook.upload(dest_gcs_bucket,dest_gcs_object,temp_file.name,gzip=self.gzip)self.log.info("All done, uploaded %d files to Google Cloud Storage.",len(files))else:self.log.info("There are no new files to sync. Have a nice day!")self.log.info("In sync, no files needed to be uploaded to Google Cloud Storage")returnfiles