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61 lines
2.0 KiB
Python
61 lines
2.0 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 flask import Flask
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from flask_caching import Cache
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from superset.typing import CacheConfig
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class CacheManager:
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def __init__(self) -> None:
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super().__init__()
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self._tables_cache = None
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self._cache = None
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self._thumbnail_cache = None
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def init_app(self, app: Flask) -> None:
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self._cache = self._setup_cache(app, app.config["CACHE_CONFIG"])
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self._tables_cache = self._setup_cache(
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app, app.config["TABLE_NAMES_CACHE_CONFIG"]
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)
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self._thumbnail_cache = self._setup_cache(
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app, app.config["THUMBNAIL_CACHE_CONFIG"]
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)
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@staticmethod
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def _setup_cache(app: Flask, cache_config: CacheConfig) -> Cache:
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"""Setup the flask-cache on a flask app"""
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if isinstance(cache_config, dict):
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return Cache(app, config=cache_config)
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# Accepts a custom cache initialization function, returning an object compatible
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# with Flask-Caching API.
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return cache_config(app)
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@property
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def tables_cache(self) -> Cache:
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return self._tables_cache
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@property
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def cache(self) -> Cache:
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return self._cache
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@property
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def thumbnail_cache(self) -> Cache:
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return self._thumbnail_cache
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