| Index: chrome/common/extensions/docs/server2/in_memory_object_store.py
|
| diff --git a/chrome/common/extensions/docs/server2/in_memory_object_store.py b/chrome/common/extensions/docs/server2/in_memory_object_store.py
|
| deleted file mode 100644
|
| index 2dd2a7c6e1666bee57907418a7d00c5d42f08989..0000000000000000000000000000000000000000
|
| --- a/chrome/common/extensions/docs/server2/in_memory_object_store.py
|
| +++ /dev/null
|
| @@ -1,77 +0,0 @@
|
| -# Copyright (c) 2012 The Chromium Authors. All rights reserved.
|
| -# Use of this source code is governed by a BSD-style license that can be
|
| -# found in the LICENSE file.
|
| -
|
| -import time
|
| -
|
| -from appengine_wrappers import CACHE_TIMEOUT
|
| -from future import Future
|
| -from object_store import ObjectStore
|
| -
|
| -class _CacheEntry(object):
|
| - def __init__(self, value, expire_time):
|
| - self.value = value
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| - self._never_expires = (expire_time == 0)
|
| - self._expiry = time.time() + expire_time
|
| -
|
| - def HasExpired(self):
|
| - if self._never_expires:
|
| - return False
|
| - return time.time() > self._expiry
|
| -
|
| -class _AsyncGetFuture(object):
|
| - """A future for memcache gets.
|
| -
|
| - Properties:
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| - - |cache| the in-memory cache used by InMemoryObjectStore
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| - - |time| the cache timeout
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| - - |future| the |Future| from the backing |ObjectStore|
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| - - |initial_mapping| a mapping of cache items already in memory
|
| - """
|
| - def __init__(self, cache, time, future, initial_mapping):
|
| - self._cache = cache
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| - self._time = time
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| - self._future = future
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| - self._mapping = initial_mapping
|
| -
|
| - def Get(self):
|
| - if self._future is not None:
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| - result = self._future.Get()
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| - self._cache.update(
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| - dict((k, _CacheEntry(v, self._time)) for k, v in result.iteritems()))
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| - self._mapping.update(result)
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| - return self._mapping
|
| -
|
| -class InMemoryObjectStore(ObjectStore):
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| - def __init__(self, object_store):
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| - self._object_store = object_store
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| - self._cache = {}
|
| -
|
| - def SetMulti(self, mapping, time=CACHE_TIMEOUT):
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| - for k, v in mapping.iteritems():
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| - self._cache[k] = _CacheEntry(v, time)
|
| - # TODO(cduvall): Use a batch set? App Engine kept throwing:
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| - # ValueError: Values may not be more than 1000000 bytes in length
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| - # for the batch set.
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| - self._object_store.Set(k, v, time=time)
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| -
|
| - def GetMulti(self, keys, time=CACHE_TIMEOUT):
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| - keys = keys[:]
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| - mapping = {}
|
| - for key in keys:
|
| - cache_entry = self._cache.get(key, None)
|
| - if cache_entry is None or cache_entry.HasExpired():
|
| - mapping[key] = None
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| - else:
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| - mapping[key] = cache_entry.value
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| - keys.remove(key)
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| - future = self._object_store.GetMulti(keys, time=time)
|
| - return Future(delegate=_AsyncGetFuture(self._cache,
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| - time,
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| - future,
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| - mapping))
|
| -
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| - def Delete(self, key):
|
| - if key in self._cache:
|
| - self._cache.pop(key)
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| - self._object_store.Delete(key)
|
|
|