blob: 3e4e9a597adb738685c336187303ced059d43758 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
|
# Copyright 2014 Google Inc. 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.
"""Caching utility for the discovery document."""
from __future__ import absolute_import
import logging
import datetime
LOGGER = logging.getLogger(__name__)
DISCOVERY_DOC_MAX_AGE = 60 * 60 * 24 # 1 day
def autodetect():
"""Detects an appropriate cache module and returns it.
Returns:
googleapiclient.discovery_cache.base.Cache, a cache object which
is auto detected, or None if no cache object is available.
"""
try:
from google.appengine.api import memcache
from . import appengine_memcache
return appengine_memcache.cache
except Exception:
try:
from . import file_cache
return file_cache.cache
except Exception as e:
LOGGER.warning(e, exc_info=True)
return None
|
