def _set_result_from_operation(self):
"""Set the result or exception from the operation if it is complete."""
# This must be done in a lock to prevent the polling thread
# and main thread from both executing the completion logic
# at the same time.
with self._completion_lock:
# If the operation isn't complete or if the result has already been
# set, do not call set_result/set_exception again.
# Note: self._result_set is set to True in set_result and
# set_exception, in case those methods are invoked directly.
if not self._operation.done or self._result_set:
return
if self._operation.HasField('response'):
response = _helpers._from_any_pb(
self._result_type, self._operation.response)
self.set_result(response)
elif self._operation.HasField('error'):
exception = exceptions.GoogleCloudError(
self._operation.error.message,
errors=(self._operation.error))
self.set_exception(exception)
else:
exception = exceptions.GoogleCloudError(
'Unexpected state: Long-running operation had neither '
'response nor error set.')
self.set_exception(exception)
def metadata(self):
"""google.protobuf.Message: the current operation metadata."""
if not self._operation.HasField('metadata'):
return None
return _helpers._from_any_pb(
self._metadata_type, self._operation.metadata)
def _call_fut(self, pb_type, any_pb):
from google.cloud._helpers import _from_any_pb
return _from_any_pb(pb_type, any_pb)
def _call_fut(self, pb_type, any_pb):
from google.cloud._helpers import _from_any_pb
return _from_any_pb(pb_type, any_pb)