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from airflow.contrib.hooks.wasb_hook import WasbHook
from airflow.models import BaseOperator
from airflow.utils.decorators import apply_defaults
[docs]class FileToWasbOperator(BaseOperator):
"""
Uploads a file to Azure Blob Storage.
:param file_path: Path to the file to load. (templated)
:type file_path: str
:param container_name: Name of the container. (templated)
:type container_name: str
:param blob_name: Name of the blob. (templated)
:type blob_name: str
:param wasb_conn_id: Reference to the wasb connection.
:type wasb_conn_id: str
:param load_options: Optional keyword arguments that
`WasbHook.load_file()` takes.
:type load_options: dict
"""
template_fields = ('file_path', 'container_name', 'blob_name')
@apply_defaults
def __init__(self, file_path, container_name, blob_name,
wasb_conn_id='wasb_default', load_options=None, *args,
**kwargs):
super(FileToWasbOperator, self).__init__(*args, **kwargs)
if load_options is None:
load_options = {}
self.file_path = file_path
self.container_name = container_name
self.blob_name = blob_name
self.wasb_conn_id = wasb_conn_id
self.load_options = load_options
[docs] def execute(self, context):
"""Upload a file to Azure Blob Storage."""
hook = WasbHook(wasb_conn_id=self.wasb_conn_id)
self.log.info(
'Uploading {self.file_path} to wasb://{self.container_name} '
'as {self.blob_name}'.format(**locals())
)
hook.load_file(self.file_path, self.container_name,
self.blob_name, **self.load_options)