def get(self, bucket, identifier, deserialize_data=True):
"""
Get a item from cache bucket
:param bucket: bucket where read the data
:param identifier: key identifier of the data
:param deserialize_data: Must be False ONLY when this method is called by IPC (common/cache.py)
:return: the data
:raise CacheMiss: if cache entry does not exist
"""
try:
identifier = self._add_prefix(identifier)
cache_entry = self._get_cache_bucket(bucket['name'])[identifier]
if cache_entry['expires'] < int(time()):
# Cache expired
raise CacheMiss()
return cache_utils.deserialize_data(
cache_entry['data']
) if deserialize_data else cache_entry['data']
except KeyError as exc:
if bucket['is_persistent']:
if deserialize_data:
return cache_utils.deserialize_data(
self._get_db(bucket['name'], identifier))
return self._get_db(bucket['name'], identifier)
raise CacheMiss from exc
except DBProfilesMissing as exc:
# Raised by _add_prefix there is no active profile guid when add-on is installed from scratch
raise CacheMiss from exc
def get(self, bucket, identifier):
"""Get a item from cache bucket"""
call_args = {
'bucket': bucket,
'identifier': identifier
}
data = self._make_call('get', call_args)
return deserialize_data(data)