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authorWuKong <rebirthmonkey@gmail.com>2017-12-23 21:49:35 +0100
committerWuKong <rebirthmonkey@gmail.com>2017-12-23 21:49:58 +0100
commit1100c66ce03a059ebe7ece9734e799b49b3a5a9e (patch)
treea057e7e7511f6675a9327b79e6919f07c5f89f07 /keystonemiddleware-moon/keystonemiddleware/openstack/common/memorycache.py
parent7a4dfdde6314476ae2a1a1c881ff1e3c430f790e (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.py97
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]