casbin/model/model_fast.py

# Copyright 2023 The casbin Authors. 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 typing import Any, Sequence

from .model import Model
from .policy_fast import FastPolicy


class FastModel(Model):
    _cache_key_order: Sequence[int]

    def __init__(self, cache_key_order: Sequence[int]) -> None:
        super().__init__()
        self._cache_key_order = cache_key_order

    def add_def(self, sec: str, key: str, value: Any) -> None:
        super().add_def(sec, key, value)
        if sec == "p" and key == "p":
            self.model[sec][key].policy = FastPolicy(self._cache_key_order)

    def clear_policy(self) -> None:
        """clears all current policy."""
        super().clear_policy()
        self.model["p"]["p"].policy = FastPolicy(self._cache_key_order)