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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 WasbDeleteBlobOperator(BaseOperator):
"""
Deletes blob(s) on Azure Blob Storage.
: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 check_options: Optional keyword arguments that
`WasbHook.check_for_blob()` takes.
:param is_prefix: If blob_name is a prefix, delete all files matching prefix.
:type is_prefix: bool
:param ignore_if_missing: if True, then return success even if the
blob does not exist.
:type ignore_if_missing: bool
"""
[docs] template_fields = ('container_name', 'blob_name')
@apply_defaults
def __init__(self, container_name, blob_name,
wasb_conn_id='wasb_default', check_options=None,
is_prefix=False, ignore_if_missing=False,
*args,
**kwargs):
super(WasbDeleteBlobOperator, self).__init__(*args, **kwargs)
if check_options is None:
check_options = {}
self.wasb_conn_id = wasb_conn_id
self.container_name = container_name
self.blob_name = blob_name
self.check_options = check_options
self.is_prefix = is_prefix
self.ignore_if_missing = ignore_if_missing
[docs] def execute(self, context):
self.log.info(
'Deleting blob: {self.blob_name}\n'
'in wasb://{self.container_name}'.format(**locals())
)
hook = WasbHook(wasb_conn_id=self.wasb_conn_id)
hook.delete_file(self.container_name, self.blob_name,
self.is_prefix, self.ignore_if_missing,
**self.check_options)