def _start_workflows(self, trigger=None):
from flask import current_app
trigger = trigger if trigger is not None else construct_trigger(
self._reconstruct_scheduler_args())
current_app.running_context.scheduler.schedule_workflows(
self.id, execute_workflow_helper, self._get_workflow_ids_as_list(),
trigger)
def __init__(self, name, description='', status='running', workflows=None, task_trigger=None):
self.name = name
self.description = description
if workflows is not None:
for workflow in set(workflows):
self.workflows.append(ScheduledWorkflow(workflow_id=workflow))
if task_trigger is not None:
construct_trigger(task_trigger) # Throws an error if the args are invalid
self.trigger_type = task_trigger['type']
self.trigger_args = json.dumps(task_trigger['args'])
else:
self.trigger_type = 'unspecified'
self.trigger_args = '{}'
self.status = status if status in ('running', 'stopped') else 'running'
if self.status == 'running' and self.trigger_type != 'unspecified':
self._start_workflows()
def _modify_workflows(self, json_in, trigger):
from flask import current_app
new, removed = self.__get_different_workflows(json_in)
for workflow in self.workflows:
self.workflows.remove(workflow)
for workflow in json_in['workflows']:
self.workflows.append(ScheduledWorkflow(workflow_id=workflow))
if self.trigger_type != 'unspecified' and self.status == 'running':
trigger = trigger if trigger is not None else construct_trigger(self._reconstruct_scheduler_args())
if new:
current_app.running_context.scheduler.schedule_workflows(self.id,
current_app.running_context.executor.execute_workflow,
new, trigger)
if removed:
current_app.running_context.scheduler.unschedule_workflows(self.id, removed)
def update(self, json_in):
"""Updates this task from a JSON representation of it
Args:
json_in (dict): The JSON representation of the updated task
"""
trigger = None
if 'task_trigger' in json_in and json_in['task_trigger']:
trigger = construct_trigger(json_in['task_trigger']) # Throws an error if the args are invalid
self._update_scheduler(trigger)
self.trigger_type = json_in['task_trigger']['type']
self.trigger_args = json.dumps(json_in['task_trigger']['args'])
if 'name' in json_in:
self.name = json_in['name']
if 'description' in json_in:
self.description = json_in['description']
if 'workflows' in json_in and json_in['workflows']:
self._modify_workflows(json_in, trigger=trigger)
if 'status' in json_in and json_in['status'] != self.status:
self._update_status(json_in)