47 lines
1.3 KiB
Python
47 lines
1.3 KiB
Python
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# Copyright 2014 Google Inc. All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# 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, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""An abstract class for caching the discovery document."""
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import abc
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class Cache(object):
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"""A base abstract cache class."""
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__metaclass__ = abc.ABCMeta
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@abc.abstractmethod
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def get(self, url):
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"""Gets the content from the memcache with a given key.
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Args:
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url: string, the key for the cache.
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Returns:
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object, the value in the cache for the given key, or None if the key is
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not in the cache.
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"""
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raise NotImplementedError()
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@abc.abstractmethod
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def set(self, url, content):
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"""Sets the given key and content in the cache.
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Args:
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url: string, the key for the cache.
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content: string, the discovery document.
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"""
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raise NotImplementedError()
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