baseimage-tutorial-framework/lib/tfw/components/fsm_updater.py

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class FSMUpdater:
def __init__(self, fsm):
self.fsm = fsm
@property
def fsm_update(self):
return {
'key': 'fsm_update',
**self.fsm_update_data
}
@property
def fsm_update_data(self):
valid_transitions = [
{'trigger': trigger}
for trigger in self.fsm.get_triggers(self.fsm.state)
]
last_fsm_event = self.fsm.event_log[-1]
last_fsm_event['timestamp'] = last_fsm_event['timestamp'].isoformat()
return {
'current_state': self.fsm.state,
'valid_transitions': valid_transitions,
'in_accepted_state': self.fsm.in_accepted_state,
'last_event': last_fsm_event
}