congress/congress/policy_engines/base_driver.py

37 lines
1.3 KiB
Python

# Copyright (c) 2015 VMware, Inc. All rights reserved.
#
# 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.
#
from __future__ import print_function
from __future__ import division
from __future__ import absolute_import
from congress.dse import deepsix
class PolicyEngineDriver(deepsix.deepSix):
"""Driver for policy engines, analogous to DataSourceDriver."""
def set_policy(self, policy):
"""Set the policy of this policy engine. POLICY is a datalog string."""
return NotImplementedError
def supported_language(self):
"""Return description of the language supported by this engine.
A description is a list of permitted tables and a list of forbidden
tables. Eventually we may broaden the description.
"""
return NotImplementedError