def result(self):
"""
:return: The return value of the function for this completed task.
"""
if self._task_result is None:
self.get_result(wait=True)
if not self.is_success:
return None
if not self._is_return_value_loaded:
return_value = Storage().get(self._task_result.result_key,
storage_type='result')
result_type = self._task_result.get('result_type',
ResultType.LEGACY_PICKLE)
if result_type == ResultType.LEGACY_PICKLE:
return_value = cloudpickle.loads(return_value)
if isinstance(return_value, dict):
# For backwards-compatibility reasons, for legacy pickles the result is
# wrapped in a dictionary.
self._return_value = return_value['result']
else:
self._return_value = return_value
elif result_type == ResultType.JSON:
self._return_value = json.loads(return_value.decode('utf-8'))
else:
raise RuntimeError(
"Unknown result type: %s - update your tasks client")
self._is_return_value_loaded = True
return self._return_value
def result(self):
"""
Property indicating the return value of the function for this completed task.
:rtype: json or pickled type
:return: The return value of the function for this completed task.
"""
if not self.is_success:
return None
if not self._is_return_value_loaded:
if self._task_result.result_size_bytes > 0:
return_value = Storage().get(self._task_result.result_key,
storage_type="result")
result_type = self._task_result.get("result_type",
ResultType.LEGACY_PICKLE)
if result_type == ResultType.JSON:
self._return_value = json.loads(
return_value.decode("utf-8"))
elif result_type == ResultType.LEGACY_PICKLE:
return_value = pickle.loads(return_value)
if isinstance(return_value, dict):
# For backwards-compatibility reasons (the old dlrun client requires it),
# results to be pickled have always been wrapped in a dictionary. However,
# all clients since version 0.10.0 ignore all the dictionary items except
# for 'result', and all clients have always extracted the 'result' element.
# In order for the service to remain compatible with older clients, we
# must continue to do this even though it is wasteful.
self._return_value = return_value["result"]
else:
# for the above reason, this code will likely never be reached.
self._return_value = return_value
else:
raise RuntimeError(
"Unknown result type: %s - update your tasks client")
else:
self._return_value = None
self._is_return_value_loaded = True
return self._return_value