# -*- coding: utf-8 -*-
#
# 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 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: %s\nin wasb://%s', self.blob_name, self.container_name
)
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)