def get_decisions_after_workflow_start(self):
logger.debug('DecisionBuilder.get_decisions_after_workflow_start()')
decisions = []
tasks = self.execution_graph.get_first_tasks()
for t in tasks:
decision = self.get_decision_schedule_activity(t)
decisions.append(decision)
return decisions
def get_decisions_after_workflow_start(self):
logger.debug('DecisionBuilder.get_decisions_after_workflow_start()')
decisions = []
task_ids = self.execution_graph.get_nodes_zero_in_degree()
for task_id in task_ids:
task = self.tasks_by_id[task_id]
decision = self.get_decision_schedule_activity(task=task)
decisions.append(decision)
return decisions
def get_decisions_after_workflow_start(self):
logger.debug('DecisionBuilder.get_decisions_after_workflow_start()')
decisions = []
task_ids = self.execution_graph.get_nodes_zero_in_degree()
for task_id in task_ids:
task = self.tasks_by_id[task_id]
decision = self.get_decision_schedule_activity(task=task)
decisions.append(decision)
return decisions
def get_decisions_after_workflow_start(self):
decisions = []
tasks = self.execution_graph.get_first_tasks()
for t in tasks:
if isinstance(t, floto.specs.ActivityTask):
input_ = self.get_input_activity_task_after_workflow_start(t)
decision = self.get_decision_schedule_activity_task(activity_task=t, input=input_)
else:
decision = self.get_decision_start_timer(t)
decisions.append(decision)
return decisions
def get_decisions_after_activity_completion(self, events):
"""Return the decisions based on the completed activities since the last decision task.
Parameters
----------
events: list
List of ActivityTaskCompleted or TimerFired events
"""
task_ids = [self.history.get_id_task_event(e) for e in events]
tasks = self.get_tasks_to_be_scheduled(task_ids)
decisions = []
for t in tasks:
decisions.append(self.get_decision_task(t))
return decisions
def get_decisions_after_activity_completion(self, events):
"""Return the decisions based on the completed activities since the last decision task.
Parameters
----------
events: list
List of ActivityTaskCompleted or TimerFired events
"""
logger.debug(
'DecisionBuilder.get_decisions_after_activity_completion...')
task_ids = [self.history.get_id_task_event(e) for e in events]
tasks = self.get_tasks_to_be_scheduled(task_ids)
decisions = []
for t in tasks:
decisions.append(self.get_decision_schedule_activity(task=t))
return decisions
def get_decisions_faulty_tasks(self, task_events):
"""Analyze the faulty tasks and their retry strategies. If a task is to be resubmitted,
add a decision to the output.
Parameters
----------
task_events: list
List of ActivityTask Failed/TimedOut events
Returns
-------
list
List of ScheduleActivityTask decision if the tasks are being resubmitted.
If not, a TerminateWorkflow decision is returned and the self.terminate_workflow flag
is set.
"""
decisions = []
for e in task_events:
if self.is_terminate_workflow():
break
id_ = self.history.get_id_task_event(e)
t = self.tasks_by_id[id_]
if t.retry_strategy:
failures = self.history.get_number_activity_failures(t)
if t.retry_strategy.is_task_resubmitted(failures):
decision = self.get_decision_schedule_activity(task=t)
decisions.append(decision)
else:
reason = 'task_retry_limit_reached'
details = self.decision_input.get_details_failed_tasks(
task_events)
decisions = self.get_decisions_after_failed_workflow_execution(
reason=reason, details=details)
else:
reason = 'task_failed'
details = self.decision_input.get_details_failed_tasks(
task_events)
decisions = self.get_decisions_after_failed_workflow_execution(
reason=reason, details=details)
return decisions
def get_decisions_faulty_tasks(self, task_events):
"""Analyze the faulty tasks and their retry strategies. If a task is to be resubmitted,
add a decision to the output
Parameters
----------
task_events: list
List of ActivityTask Failed/TimedOut events
Returns
-------
list
List of ScheduleActivityTask decision if the tasks are being resubmitted.
If not, a TerminateWorkflow decision is returned and the self.terminate_worklfow flag
is set.
"""
decisions = []
for e in task_events:
if self.is_terminate_workflow():
break
activity_id = self.history.get_id_activity_task_event(e)
t = self.execution_graph.tasks_by_id[activity_id]
if t.retry_strategy:
failures = self.history.get_number_activity_task_failures(activity_id)
if t.retry_strategy.is_task_resubmitted(failures):
scheduled_event = self.history.get_event_task_scheduled(activity_id)
attributes = scheduled_event['activityTaskScheduledEventAttributes']
input = json.loads(attributes['input']) if 'input' in attributes else None
decision = self.get_decision_schedule_activity_task(t, input)
decisions.append(decision)
else:
reason = 'task_retry_limit_reached'
details = self.get_details_failed_tasks(task_events)
decisions = self.get_decisions_after_failed_workflow_execution(reason, details)
else:
reason = 'task_failed'
details = self.get_details_failed_tasks(task_events)
decisions = self.get_decisions_after_failed_workflow_execution(reason, details)
return decisions
def get_decisions_faulty_tasks(self, task_events):
"""Analyze the faulty tasks and their retry strategies. If a task is to be resubmitted,
add a decision to the output.
Parameters
----------
task_events: list
List of ActivityTask Failed/TimedOut events
Returns
-------
list
List of ScheduleActivityTask decision if the tasks are being resubmitted.
If not, a TerminateWorkflow decision is returned and the self.terminate_workflow flag
is set.
"""
decisions = []
for e in task_events:
if self.is_terminate_workflow():
break
id_ = self.history.get_id_task_event(e)
t = self.tasks_by_id[id_]
if t.retry_strategy:
failures = self.history.get_number_activity_failures(t)
if t.retry_strategy.is_task_resubmitted(failures):
decision = self.get_decision_schedule_activity(task=t)
decisions.append(decision)
else:
reason = 'task_retry_limit_reached'
details = self.decision_input.get_details_failed_tasks(task_events)
decisions = self.get_decisions_after_failed_workflow_execution(reason=reason,
details=details)
else:
reason = 'task_failed'
details = self.decision_input.get_details_failed_tasks(task_events)
decisions = self.get_decisions_after_failed_workflow_execution(reason=reason,
details=details)
return decisions