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287 lines
12 KiB
Python
287 lines
12 KiB
Python
"""
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Helper class for creating decision responses.
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"""
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class Layer1Decisions(object):
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"""
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Use this object to build a list of decisions for a decision response.
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Each method call will add append a new decision. Retrieve the list
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of decisions from the _data attribute.
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"""
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def __init__(self):
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self._data = []
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def schedule_activity_task(self,
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activity_id,
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activity_type_name,
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activity_type_version,
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task_list=None,
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control=None,
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heartbeat_timeout=None,
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schedule_to_close_timeout=None,
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schedule_to_start_timeout=None,
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start_to_close_timeout=None,
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input=None):
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"""
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Schedules an activity task.
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:type activity_id: string
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:param activity_id: The activityId of the type of the activity
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being scheduled.
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:type activity_type_name: string
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:param activity_type_name: The name of the type of the activity
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being scheduled.
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:type activity_type_version: string
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:param activity_type_version: The version of the type of the
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activity being scheduled.
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:type task_list: string
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:param task_list: If set, specifies the name of the task list in
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which to schedule the activity task. If not specified, the
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defaultTaskList registered with the activity type will be used.
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Note: a task list for this activity task must be specified either
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as a default for the activity type or through this field. If
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neither this field is set nor a default task list was specified
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at registration time then a fault will be returned.
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"""
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o = {}
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o['decisionType'] = 'ScheduleActivityTask'
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attrs = o['scheduleActivityTaskDecisionAttributes'] = {}
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attrs['activityId'] = activity_id
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attrs['activityType'] = {
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'name': activity_type_name,
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'version': activity_type_version,
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}
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if task_list is not None:
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attrs['taskList'] = {'name': task_list}
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if control is not None:
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attrs['control'] = control
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if heartbeat_timeout is not None:
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attrs['heartbeatTimeout'] = heartbeat_timeout
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if schedule_to_close_timeout is not None:
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attrs['scheduleToCloseTimeout'] = schedule_to_close_timeout
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if schedule_to_start_timeout is not None:
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attrs['scheduleToStartTimeout'] = schedule_to_start_timeout
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if start_to_close_timeout is not None:
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attrs['startToCloseTimeout'] = start_to_close_timeout
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if input is not None:
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attrs['input'] = input
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self._data.append(o)
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def request_cancel_activity_task(self, activity_id):
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"""
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Attempts to cancel a previously scheduled activity task. If
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the activity task was scheduled but has not been assigned to a
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worker, then it will be canceled. If the activity task was
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already assigned to a worker, then the worker will be informed
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that cancellation has been requested in the response to
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RecordActivityTaskHeartbeat.
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"""
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o = {}
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o['decisionType'] = 'RequestCancelActivityTask'
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attrs = o['requestCancelActivityTaskDecisionAttributes'] = {}
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attrs['activityId'] = activity_id
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self._data.append(o)
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def record_marker(self, marker_name, details=None):
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"""
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Records a MarkerRecorded event in the history. Markers can be
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used for adding custom information in the history for instance
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to let deciders know that they do not need to look at the
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history beyond the marker event.
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"""
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o = {}
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o['decisionType'] = 'RecordMarker'
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attrs = o['recordMarkerDecisionAttributes'] = {}
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attrs['markerName'] = marker_name
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if details is not None:
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attrs['details'] = details
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self._data.append(o)
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def complete_workflow_execution(self, result=None):
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"""
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Closes the workflow execution and records a WorkflowExecutionCompleted
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event in the history
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"""
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o = {}
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o['decisionType'] = 'CompleteWorkflowExecution'
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attrs = o['completeWorkflowExecutionDecisionAttributes'] = {}
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if result is not None:
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attrs['result'] = result
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self._data.append(o)
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def fail_workflow_execution(self, reason=None, details=None):
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"""
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Closes the workflow execution and records a
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WorkflowExecutionFailed event in the history.
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"""
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o = {}
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o['decisionType'] = 'FailWorkflowExecution'
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attrs = o['failWorkflowExecutionDecisionAttributes'] = {}
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if reason is not None:
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attrs['reason'] = reason
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if details is not None:
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attrs['details'] = details
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self._data.append(o)
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def cancel_workflow_executions(self, details=None):
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"""
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Closes the workflow execution and records a WorkflowExecutionCanceled
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event in the history.
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"""
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o = {}
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o['decisionType'] = 'CancelWorkflowExecution'
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attrs = o['cancelWorkflowExecutionsDecisionAttributes'] = {}
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if details is not None:
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attrs['details'] = details
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self._data.append(o)
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def continue_as_new_workflow_execution(self,
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child_policy=None,
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execution_start_to_close_timeout=None,
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input=None,
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tag_list=None,
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task_list=None,
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start_to_close_timeout=None,
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workflow_type_version=None):
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"""
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Closes the workflow execution and starts a new workflow execution of
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the same type using the same workflow id and a unique run Id. A
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WorkflowExecutionContinuedAsNew event is recorded in the history.
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"""
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o = {}
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o['decisionType'] = 'ContinueAsNewWorkflowExecution'
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attrs = o['continueAsNewWorkflowExecutionDecisionAttributes'] = {}
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if child_policy is not None:
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attrs['childPolicy'] = child_policy
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if execution_start_to_close_timeout is not None:
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attrs['executionStartToCloseTimeout'] = execution_start_to_close_timeout
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if input is not None:
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attrs['input'] = input
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if tag_list is not None:
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attrs['tagList'] = tag_list
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if task_list is not None:
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attrs['taskList'] = {'name': task_list}
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if start_to_close_timeout is not None:
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attrs['taskStartToCloseTimeout'] = start_to_close_timeout
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if workflow_type_version is not None:
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attrs['workflowTypeVersion'] = workflow_type_version
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self._data.append(o)
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def start_timer(self,
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start_to_fire_timeout,
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timer_id,
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control=None):
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"""
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Starts a timer for this workflow execution and records a TimerStarted
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event in the history. This timer will fire after the specified delay
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and record a TimerFired event.
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"""
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o = {}
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o['decisionType'] = 'StartTimer'
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attrs = o['startTimerDecisionAttributes'] = {}
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attrs['startToFireTimeout'] = start_to_fire_timeout
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attrs['timerId'] = timer_id
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if control is not None:
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attrs['control'] = control
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self._data.append(o)
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def cancel_timer(self, timer_id):
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"""
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Cancels a previously started timer and records a TimerCanceled
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event in the history.
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"""
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o = {}
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o['decisionType'] = 'CancelTimer'
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attrs = o['cancelTimerDecisionAttributes'] = {}
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attrs['timerId'] = timer_id
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self._data.append(o)
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def signal_external_workflow_execution(self,
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workflow_id,
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signal_name,
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run_id=None,
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control=None,
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input=None):
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"""
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Requests a signal to be delivered to the specified external workflow
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execution and records a SignalExternalWorkflowExecutionInitiated
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event in the history.
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"""
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o = {}
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o['decisionType'] = 'SignalExternalWorkflowExecution'
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attrs = o['signalExternalWorkflowExecutionDecisionAttributes'] = {}
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attrs['workflowId'] = workflow_id
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attrs['signalName'] = signal_name
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if run_id is not None:
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attrs['runId'] = run_id
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if control is not None:
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attrs['control'] = control
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if input is not None:
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attrs['input'] = input
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self._data.append(o)
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def request_cancel_external_workflow_execution(self,
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workflow_id,
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control=None,
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run_id=None):
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"""
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Requests that a request be made to cancel the specified
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external workflow execution and records a
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RequestCancelExternalWorkflowExecutionInitiated event in the
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history.
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"""
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o = {}
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o['decisionType'] = 'RequestCancelExternalWorkflowExecution'
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attrs = o['requestCancelExternalWorkflowExecutionDecisionAttributes'] = {}
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attrs['workflowId'] = workflow_id
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if control is not None:
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attrs['control'] = control
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if run_id is not None:
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attrs['runId'] = run_id
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self._data.append(o)
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def start_child_workflow_execution(self,
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workflow_type_name,
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workflow_type_version,
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workflow_id,
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child_policy=None,
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control=None,
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execution_start_to_close_timeout=None,
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input=None,
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tag_list=None,
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task_list=None,
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task_start_to_close_timeout=None):
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"""
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Requests that a child workflow execution be started and
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records a StartChildWorkflowExecutionInitiated event in the
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history. The child workflow execution is a separate workflow
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execution with its own history.
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"""
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o = {}
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o['decisionType'] = 'StartChildWorkflowExecution'
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attrs = o['startChildWorkflowExecutionDecisionAttributes'] = {}
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attrs['workflowType'] = {
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'name': workflow_type_name,
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'version': workflow_type_version,
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}
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attrs['workflowId'] = workflow_id
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if child_policy is not None:
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attrs['childPolicy'] = child_policy
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if control is not None:
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attrs['control'] = control
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if execution_start_to_close_timeout is not None:
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attrs['executionStartToCloseTimeout'] = execution_start_to_close_timeout
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if input is not None:
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attrs['input'] = input
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if tag_list is not None:
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attrs['tagList'] = tag_list
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if task_list is not None:
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attrs['taskList'] = {'name': task_list}
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if task_start_to_close_timeout is not None:
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attrs['taskStartToCloseTimeout'] = task_start_to_close_timeout
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self._data.append(o)
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