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caches: don't use beaker for file caches anymore
caches: don't use beaker for file caches anymore

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r2846:bbc96602 default
r2846:bbc96602 default
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backends.py
120 lines | 3.7 KiB | text/x-python | PythonLexer
# -*- coding: utf-8 -*-
# Copyright (C) 2015-2018 RhodeCode GmbH
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License, version 3
# (only), as published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
# This program is dual-licensed. If you wish to learn more about the
# RhodeCode Enterprise Edition, including its added features, Support services,
# and proprietary license terms, please see https://rhodecode.com/licenses/
from dogpile.cache.backends import memory as memory_backend
from dogpile.cache.backends import file as file_backend
from dogpile.cache.backends import redis as redis_backend
from dogpile.cache.backends.file import NO_VALUE, compat
from rhodecode.lib.memory_lru_debug import LRUDict
_default_max_size = 1024
class LRUMemoryBackend(memory_backend.MemoryBackend):
def __init__(self, arguments):
max_size = arguments.pop('max_size', _default_max_size)
arguments['cache_dict'] = LRUDict(max_size)
super(LRUMemoryBackend, self).__init__(arguments)
class Serializer(object):
def _dumps(self, value):
return compat.pickle.dumps(value)
def _loads(self, value):
return compat.pickle.loads(value)
class FileNamespaceBackend(Serializer, file_backend.DBMBackend):
def __init__(self, arguments):
super(FileNamespaceBackend, self).__init__(arguments)
def list_keys(self, prefix=''):
def cond(v):
if not prefix:
return True
if v.startswith(prefix):
return True
return False
with self._dbm_file(True) as dbm:
return filter(cond, dbm.keys())
def get_store(self):
return self.filename
def get(self, key):
with self._dbm_file(False) as dbm:
if hasattr(dbm, 'get'):
value = dbm.get(key, NO_VALUE)
else:
# gdbm objects lack a .get method
try:
value = dbm[key]
except KeyError:
value = NO_VALUE
if value is not NO_VALUE:
value = self._loads(value)
return value
def set(self, key, value):
with self._dbm_file(True) as dbm:
dbm[key] = self._dumps(value)
def set_multi(self, mapping):
with self._dbm_file(True) as dbm:
for key, value in mapping.items():
dbm[key] = self._dumps(value)
class RedisPickleBackend(Serializer, redis_backend.RedisBackend):
def list_keys(self, prefix=''):
if prefix:
prefix = prefix + '*'
return self.client.keys(prefix)
def get_store(self):
return self.client.connection_pool
def set(self, key, value):
if self.redis_expiration_time:
self.client.setex(key, self.redis_expiration_time,
self._dumps(value))
else:
self.client.set(key, self._dumps(value))
def set_multi(self, mapping):
mapping = dict(
(k, self._dumps(v))
for k, v in mapping.items()
)
if not self.redis_expiration_time:
self.client.mset(mapping)
else:
pipe = self.client.pipeline()
for key, value in mapping.items():
pipe.setex(key, self.redis_expiration_time, value)
pipe.execute()