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# Copyright (c) 2013 Rackspace, Inc.
#
# Licensed 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.
"""
Base utilities to build API operation managers.
"""
import uuid
def filter_null_keys(dictionary):
return dict(((k, v) for k, v in dictionary.items() if v is not None))
def censored_copy(data_dict, censor_keys):
'''Returns redacted dict copy for censored keys'''
if censor_keys is None:
censor_keys = []
return {k: v if k not in censor_keys else '<redacted>' for k, v in
data_dict.items()}
def validate_ref(ref, entity):
"""Verifies that there is a real uuid at the end of the uri
:return: Returns True for easier testing
:raises ValueError: If it cannot correctly parse the uuid in the ref.
"""
try:
_, entity_uuid = ref.rstrip('/').rsplit('/', 1)
uuid.UUID(entity_uuid)
except Exception:
raise ValueError('{0} incorrectly specified.'.format(entity))
return True
class ImmutableException(Exception):
def __init__(self, attribute=None):
message = "This object is immutable!"
super(ImmutableException, self).__init__(message)
class BaseEntityManager(object):
def __init__(self, api, entity):
self._api = api
self._entity = entity
def total(self):
"""Returns the total number of entities stored in Barbican."""
params = {'limit': 0, 'offset': 0}
resp = self._api.get(self._entity, params=params)
return resp['total']
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