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40 lines
1.6 KiB
Python
40 lines
1.6 KiB
Python
# Licensed to the Apache Software Foundation (ASF) under one
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# or more contributor license agreements. See the NOTICE file
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# distributed with this work for additional information
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# regarding copyright ownership. The ASF licenses this file
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# to you under the Apache License, Version 2.0 (the
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# "License"); you may not use this file except in compliance
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# with the License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing,
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# software distributed under the License is distributed on an
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# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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# KIND, either express or implied. See the License for the
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# specific language governing permissions and limitations
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# under the License.
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from copy import deepcopy
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class FeatureFlagManager:
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def __init__(self) -> None:
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super().__init__()
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self._get_feature_flags_func = None
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self._feature_flags = None
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def init_app(self, app):
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self._get_feature_flags_func = app.config.get("GET_FEATURE_FLAGS_FUNC")
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self._feature_flags = app.config.get("DEFAULT_FEATURE_FLAGS") or {}
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self._feature_flags.update(app.config.get("FEATURE_FLAGS") or {})
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def get_feature_flags(self):
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if self._get_feature_flags_func:
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return self._get_feature_flags_func(deepcopy(self._feature_flags))
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return self._feature_flags
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def is_feature_enabled(self, feature) -> bool:
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"""Utility function for checking whether a feature is turned on"""
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return self.get_feature_flags().get(feature)
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