def make_value_from_datastore(self, value):
logger.info("make: Got type " + str(type(value)))
if value is None:
return None
if len(value) == 0:
return None
try:
credentials = Credentials.new_from_json(value)
except ValueError:
credentials = None
return credentials
def _decode_credential_from_json(self, cred_entry):
"""Load a credential from our JSON serialization.
Args:
cred_entry: A dict entry from the data member of our format
Returns:
(key, cred) where the key is the key tuple and the cred is the
OAuth2Credential object.
"""
raw_key = cred_entry['key']
key = util.dict_to_tuple_key(raw_key)
credential = None
credential = Credentials.new_from_json(simplejson.dumps(cred_entry['credential']))
return (key, credential)
def _decode_credential_from_json(self, cred_entry):
"""Load a credential from our JSON serialization.
Args:
cred_entry: A dict entry from the data member of our format
Returns:
(key, cred) where the key is the key tuple and the cred is the
OAuth2Credential object.
"""
raw_key = cred_entry["key"]
key = util.dict_to_tuple_key(raw_key)
credential = None
credential = Credentials.new_from_json(simplejson.dumps(cred_entry["credential"]))
return (key, credential)
def _from_base_type(self, value):
"""Converts our stored JSON string back to the desired type.
Args:
value: A value from the datastore to be converted to the desired type.
Returns:
A deserialized Credentials (or subclass) object, else None if the
value can't be parsed.
"""
if not value:
return None
try:
# Uses the from_json method of the implied class of value
credentials = Credentials.new_from_json(value)
except ValueError:
credentials = None
return credentials
def locked_get(self):
"""Retrieve Credential from datastore.
Returns:
oauth2client.Credentials
"""
if self._cache:
json = self._cache.get(self._key_name)
if json:
return Credentials.new_from_json(json)
credentials = None
entity = self._get_entity()
if entity is not None:
credentials = getattr(entity, self._property_name)
if credentials and hasattr(credentials, 'set_store'):
credentials.set_store(self)
if self._cache:
self._cache.set(self._key_name, credentials.to_json())
return credentials
