def exec_query(workflow_client: WorkflowClient,
qm: QueryMethod,
args,
stub_instance: object = None):
assert stub_instance._execution
request = QueryWorkflowRequest()
request.execution = stub_instance._execution
request.query = WorkflowQuery()
request.query.query_type = qm.name
request.query.query_args = args_to_json(args)
request.domain = workflow_client.domain
response: QueryWorkflowResponse
response, err = workflow_client.service.query_workflow(request)
if err:
if isinstance(err, QueryFailedError):
cause = deserialize_exception(err.message)
raise QueryFailureException(
query_type=qm.name,
execution=stub_instance._execution) from cause
elif isinstance(err, Exception):
raise err
else:
raise Exception(err)
if response.query_rejected:
raise QueryRejectedException(response.query_rejected.close_status)
return json.loads(response.query_result)
async def stub_activity_fn(self, *args):
assert self._decision_context
assert stub_activity_fn._execute_parameters
parameters = copy.deepcopy(stub_activity_fn._execute_parameters)
parameters.input = args_to_json(args).encode("utf-8")
from cadence.decision_loop import DecisionContext
decision_context: DecisionContext = self._decision_context
return await decision_context.schedule_activity_task(parameters=parameters)
def exec_signal(workflow_client: WorkflowClient, sm: SignalMethod, args, stub_instance: object = None):
assert stub_instance._execution
request = SignalWorkflowExecutionRequest()
request.workflow_execution = stub_instance._execution
request.signal_name = sm.name
request.input = args_to_json(args)
request.domain = workflow_client.domain
response, err = workflow_client.service.signal_workflow_execution(request)
if err:
raise Exception(err)
async def stub_activity_fn(self, *args):
assert self._decision_context
assert stub_activity_fn._execute_parameters
parameters = copy.deepcopy(stub_activity_fn._execute_parameters)
if hasattr(self, "_activity_options") and self._activity_options:
self._activity_options.fill_execute_activity_parameters(
parameters)
if self._retry_parameters:
parameters.retry_parameters = self._retry_parameters
parameters.input = args_to_json(args).encode("utf-8")
from cadence.decision_loop import DecisionContext
decision_context: DecisionContext = self._decision_context
return await decision_context.schedule_activity_task(
parameters=parameters)
def create_start_workflow_request(workflow_client: WorkflowClient, wm: WorkflowMethod,
args: List) -> StartWorkflowExecutionRequest:
start_request = StartWorkflowExecutionRequest()
start_request.domain = workflow_client.domain
start_request.workflow_id = wm._workflow_id if wm._workflow_id else str(uuid4())
start_request.workflow_type = WorkflowType()
start_request.workflow_type.name = wm._name
start_request.task_list = TaskList()
start_request.task_list.name = wm._task_list
start_request.input = args_to_json(args)
start_request.execution_start_to_close_timeout_seconds = wm._execution_start_to_close_timeout_seconds
start_request.task_start_to_close_timeout_seconds = wm._task_start_to_close_timeout_seconds
start_request.identity = workflow_client.service.get_identity()
start_request.workflow_id_reuse_policy = wm._workflow_id_reuse_policy
start_request.request_id = str(uuid4())
start_request.cron_schedule = wm._cron_schedule if wm._cron_schedule else None
return start_request