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author | WuKong <rebirthmonkey@gmail.com> | 2017-12-23 21:49:35 +0100 |
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committer | WuKong <rebirthmonkey@gmail.com> | 2017-12-23 21:49:58 +0100 |
commit | 1100c66ce03a059ebe7ece9734e799b49b3a5a9e (patch) | |
tree | a057e7e7511f6675a9327b79e6919f07c5f89f07 /keystonemiddleware-moon/keystonemiddleware/openstack/common/memorycache.py | |
parent | 7a4dfdde6314476ae2a1a1c881ff1e3c430f790e (diff) |
moonv4 cleanup
Change-Id: Icef927f3236d985ac13ff7376f6ce6314b2b39b0
Signed-off-by: WuKong <rebirthmonkey@gmail.com>
Diffstat (limited to 'keystonemiddleware-moon/keystonemiddleware/openstack/common/memorycache.py')
-rw-r--r-- | keystonemiddleware-moon/keystonemiddleware/openstack/common/memorycache.py | 97 |
1 files changed, 0 insertions, 97 deletions
diff --git a/keystonemiddleware-moon/keystonemiddleware/openstack/common/memorycache.py b/keystonemiddleware-moon/keystonemiddleware/openstack/common/memorycache.py deleted file mode 100644 index e72c26df..00000000 --- a/keystonemiddleware-moon/keystonemiddleware/openstack/common/memorycache.py +++ /dev/null @@ -1,97 +0,0 @@ -# Copyright 2010 United States Government as represented by the -# Administrator of the National Aeronautics and Space Administration. -# All Rights Reserved. -# -# Licensed under the Apache License, Version 2.0 (the "License"); you may -# not use this file except in compliance with the License. You may obtain -# a copy of the License at -# -# http://www.apache.org/licenses/LICENSE-2.0 -# -# Unless required by applicable law or agreed to in writing, software -# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT -# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the -# License for the specific language governing permissions and limitations -# under the License. - -"""Super simple fake memcache client.""" - -import copy - -from oslo_config import cfg -from oslo_utils import timeutils - -memcache_opts = [ - cfg.ListOpt('memcached_servers', - help='Memcached servers or None for in process cache.'), -] - -CONF = cfg.CONF -CONF.register_opts(memcache_opts) - - -def list_opts(): - """Entry point for oslo-config-generator.""" - return [(None, copy.deepcopy(memcache_opts))] - - -def get_client(memcached_servers=None): - client_cls = Client - - if not memcached_servers: - memcached_servers = CONF.memcached_servers - if memcached_servers: - import memcache - client_cls = memcache.Client - - return client_cls(memcached_servers, debug=0) - - -class Client(object): - """Replicates a tiny subset of memcached client interface.""" - - def __init__(self, *args, **kwargs): - """Ignores the passed in args.""" - self.cache = {} - - def get(self, key): - """Retrieves the value for a key or None. - - This expunges expired keys during each get. - """ - - now = timeutils.utcnow_ts() - for k in list(self.cache): - (timeout, _value) = self.cache[k] - if timeout and now >= timeout: - del self.cache[k] - - return self.cache.get(key, (0, None))[1] - - def set(self, key, value, time=0, min_compress_len=0): - """Sets the value for a key.""" - timeout = 0 - if time != 0: - timeout = timeutils.utcnow_ts() + time - self.cache[key] = (timeout, value) - return True - - def add(self, key, value, time=0, min_compress_len=0): - """Sets the value for a key if it doesn't exist.""" - if self.get(key) is not None: - return False - return self.set(key, value, time, min_compress_len) - - def incr(self, key, delta=1): - """Increments the value for a key.""" - value = self.get(key) - if value is None: - return None - new_value = int(value) + delta - self.cache[key] = (self.cache[key][0], str(new_value)) - return new_value - - def delete(self, key, time=0): - """Deletes the value associated with a key.""" - if key in self.cache: - del self.cache[key] |