41 lines
1.3 KiB
Python
41 lines
1.3 KiB
Python
# Copyright (c) 2010 OpenStack, LLC.
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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
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# 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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from swift.common.memcached import MemcacheRing
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class MemcacheMiddleware(object):
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"""
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Caching middleware that manages caching in swift.
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"""
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def __init__(self, app, conf):
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self.app = app
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self.memcache = MemcacheRing([s.strip() for s in
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conf.get('memcache_servers', '127.0.0.1:11211').split(',')
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if s.strip()])
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def __call__(self, env, start_response):
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env['swift.cache'] = self.memcache
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return self.app(env, start_response)
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def filter_factory(global_conf, **local_conf):
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conf = global_conf.copy()
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conf.update(local_conf)
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def cache_filter(app):
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return MemcacheMiddleware(app, conf)
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return cache_filter
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