class SchedulerExample(Agent):
'''This agent can be used to demonstrate scheduling and
acutation of devices. It reserves a non-existant device, then
acts when its time comes up. Since there is no device, this
will cause an error.
'''
def __init__(self, **kwargs):
super(SchedulerExample, self).__init__(**kwargs)
@Core.receiver('onsetup')
def setup(self, sender, **kwargs):
self._agent_id = config['agentid']
@Core.receiver('onstart')
def startup(self, sender, **kwargs):
# self.publish_schedule()
self.use_rpc()
@PubSub.subscribe('pubsub', topics.ACTUATOR_SCHEDULE_ANNOUNCE(campus='campus',
building='building',unit='unit'))
def actuate(self, peer, sender, bus, topic, headers, message):
print ("response:",topic,headers,message)
if headers[headers_mod.REQUESTER_ID] != agent_id:
return
'''Match the announce for our fake device with our ID
Then take an action. Note, this command will fail since there is no
actual device'''
headers = {
'requesterID': agent_id,
}
self.vip.pubsub.publish(
'pubsub', topics.ACTUATOR_SET(campus='campus',
building='building',unit='unit',
point='point'),
headers, str(0.0))
def publish_schedule(self):
'''Periodically publish a schedule request'''
headers = {
'AgentID': agent_id,
'type': 'NEW_SCHEDULE',
'requesterID': agent_id, #The name of the requesting agent.
'taskID': agent_id + "-ExampleTask", #The desired task ID for this task. It must be unique among all other scheduled tasks.
'priority': 'LOW', #The desired task priority, must be 'HIGH', 'LOW', or 'LOW_PREEMPT'
}
start = str(datetime.datetime.now())
end = str(datetime.datetime.now() + datetime.timedelta(minutes=1))
msg = [
['campus/building/unit',start,end]
#Could add more devices
# ["campus/building/device1", #First time slot.
# "2014-1-31 12:27:00", #Start of time slot.
# "2016-1-31 12:29:00"], #End of time slot.
# ["campus/building/device2", #Second time slot.
# "2014-1-31 12:26:00", #Start of time slot.
# "2016-1-31 12:30:00"], #End of time slot.
# ["campus/building/device3", #Third time slot.
# "2014-1-31 12:30:00", #Start of time slot.
# "2016-1-31 12:32:00"], #End of time slot.
#etc...
]
self.vip.pubsub.publish(
'pubsub', topics.ACTUATOR_SCHEDULE_REQUEST, headers, msg)
def use_rpc(self):
try:
start = str(datetime.datetime.now())
end = str(datetime.datetime.now() + datetime.timedelta(minutes=1))
msg = [
['campus/building/unit3',start,end]
]
result = self.vip.rpc.call(
'platform.actuator',
'request_new_schedule',
agent_id,
"some task",
'LOW',
msg).get(timeout=10)
print("schedule result", result)
except Exception as e:
print ("Could not contact actuator. Is it running?")
print(e)
return
try:
if result['result'] == 'SUCCESS':
result = self.vip.rpc.call(
'platform.actuator',
'set_point',
agent_id,
'campus/building/unit3/some_point',
'0.0').get(timeout=10)
print("Set result", result)
except Exception as e:
print ("Expected to fail since there is no real device to set")
print(e)
class Agent(PublishMixin, BaseAgent):
def __init__(self, **kwargs):
super(Agent, self).__init__(**kwargs)
self.lock_timer = None
self.lock_acquired = False
self.tasklet = None
self.data_queue = green.WaitQueue(self.timer)
self.value_queue = green.WaitQueue(self.timer)
self.weather_data_queue = green.WaitQueue(self.timer)
self.last_run_time = None
self.is_running = False
self.remaining_time = None
self.task_id = agent_id
self.retry_schedule = None
self.start = None
self.end = None
def setup(self):
super(Agent, self).setup()
self.scheduled_task()
def startrun(self, algo=None):
_log.debug('start diagnostic')
if algo is None:
algo = afdd.AFDD(self, config_path).run_all
self.tasklet = greenlet.greenlet(algo)
self.is_running = True
self.last_run_time = datetime.datetime.now()
self.tasklet.switch()
def scheduled_task(self):
'''
Schedule re-occuring diagnostics
'''
_log.debug('Schedule Dx')
headers = {
'type': 'NEW_SCHEDULE',
'requesterID': agent_id,
'taskID': agent_id,
'priority': 'LOW_PREEMPT'
}
min_run_hour = math.floor(min_run_window / 3600)
min_run_minute = int((min_run_window / 3600 - min_run_hour) * 60)
self.start = datetime.datetime.now().replace(hour=start_hour,
minute=start_minute)
self.end = self.start + datetime.timedelta(hours=2, minutes=30)
run_start = self.end - datetime.datetime.now()
required_diagnostic_time = datetime.timedelta(
hours=min_run_hour, minutes=min_run_minute)
if run_start < required_diagnostic_time:
self.start = self.start + datetime.timedelta(days=1)
self.end = self.start + datetime.timedelta(hours=2, minutes=30)
sched_time = datetime.datetime.now() + datetime.timedelta(
days=day_run_interval + 1)
sched_time = sched_time.replace(hour=0, minute=1)
else:
sched_time = datetime.datetime.now() + datetime.timedelta(
days=day_run_interval)
self.start = str(self.start)
self.end = str(self.end)
self.task_timer = self.periodic_timer(
60, self.publish_json, topics.ACTUATOR_SCHEDULE_REQUEST(),
headers, [[
"{campus}/{building}/{unit}".format(**rtu_path),
self.start, self.end
]])
event = sched.Event(self.scheduled_task)
self.next = self.schedule(sched_time, event)
@matching.match_headers({
headers_mod.REQUESTER_ID: agent_id,
'type': 'CANCEL_SCHEDULE'
})
@matching.match_exact(topics.ACTUATOR_SCHEDULE_RESULT())
def preempt(self):
if self.is_running:
self.cancel_greenlet()
@matching.match_headers({headers_mod.REQUESTER_ID: agent_id})
@matching.match_exact(topics.ACTUATOR_SCHEDULE_ANNOUNCE(**rtu_path))
def on_schedule(self, topic, headers, message, match):
msg = jsonapi.loads(message[0])
now = datetime.datetime.now()
self.remaining_time = headers.get('window', 0)
if self.task_id == headers.get('taskID', ''):
if self.remaining_time < termination_window:
if self.is_running:
self.cancel_greenlet()
elif (self.remaining_time > min_run_window and
(self.last_run_time is None or (now - self.last_run_time)
> datetime.timedelta(hours=23, minutes=50))):
self.startrun()
@matching.match_headers({headers_mod.REQUESTER_ID: agent_id})
@matching.match_exact(topics.ACTUATOR_SCHEDULE_RESULT())
def schedule_result(self, topic, headers, message, match):
msg = jsonapi.loads(message[0])
_log.debug('Actuator response received')
self.task_timer.cancel()
@matching.match_exact(topics.DEVICES_VALUE(point='all', **rtu_path))
def on_new_data(self, topic, headers, message, match):
data = jsonapi.loads(message[0])
#Check override status
if int(data["VoltronPBStatus"]) == 1:
if self.is_running:
_log.debug("User override is initiated...")
headers = {
'Content-Type': 'text/plain',
'requesterID': agent_id,
}
self.publish(
topics.ACTUATOR_SET(point="VoltronFlag", **rtu_path),
headers, str(0.0))
self.cancel_greenlet()
else:
self.data_queue.notify_all(data)
@matching.match_headers({headers_mod.REQUESTER_ID: agent_id})
@matching.match_glob(topics.ACTUATOR_VALUE(point='*', **rtu_path))
def on_set_result(self, topic, headers, message, match):
self.value_queue.notify_all((match.group(1), True))
@matching.match_headers({headers_mod.REQUESTER_ID: agent_id})
@matching.match_glob(topics.ACTUATOR_ERROR(point='*', **rtu_path))
def on_set_error(self, topic, headers, message, match):
self.value_queue.notify_all((match.group(1), False))
def cancel_greenlet(self):
#kill all tasks currently in the queue
self.data_queue.kill_all()
self.value_queue.kill_all()
#kill current tasklet
self.tasklet.throw()
self.is_running = False
def sleep(self, timeout):
_log.debug('wait for steady state({})'.format(timeout))
green.sleep(timeout, self.timer)
def get_new_data(self, timeout=None):
_log.debug('get_new_data({})'.format(timeout))
return self.data_queue.wait(timeout)
def command_equip(self, point_name, value, timeout=None):
_log.debug('set_point({}, {}, {})'.format(point_name, value,
timeout))
headers = {
'Content-Type': 'text/plain',
'requesterID': agent_id,
}
self.publish(topics.ACTUATOR_SET(point=point_name, **rtu_path),
headers, str(value))
try:
return self.value_queue.wait(timeout)
except green.Timeout:
return True
def weather_request(self, timeout=None):
_log.debug('weather request for {}'.format(zip_code))
headers = {'Content-Type': 'text/plain', 'requesterID': agent_id}
msg = {'zipcode': str(zip_code)}
self.publish_json('weather/request', headers, msg)
try:
return self.weather_data_queue.wait(timeout)
except green.Timeout:
return 'INCONCLUSIVE'
matching.match_headers({headers_mod.REQUESTER_ID: agent_id})
@matching.match_exact('weather/response/temperature/temp_f')
def weather_response(self, topic, headers, message, match):
data = float(jsonapi.loads(message[0]))
print data
self.weather_data_queue.notify_all(data)
class Agent(PublishMixin, BaseAgent):
'''This agent can be used to demonstrate scheduling and
acutation of devices. It reserves a non-existant device, then
acts when its time comes up. Since there is no device, this
will cause an error.
'''
def __init__(self, **kwargs):
super(Agent, self).__init__(**kwargs)
def setup(self):
# Demonstrate accessing a value from the config file
_log.info(config['message'])
# Always call the base class setup()
super(Agent, self).setup()
self.publish_schedule()
@matching.match_exact(
topics.ACTUATOR_SCHEDULE_ANNOUNCE(campus='campus',
building='building',
unit='unit'))
@matching.match_headers({headers_mod.REQUESTER_ID: agent_id})
def actuate(self, topic, headers, message, match):
'''Match the announce for our fake device with our ID
Then take an action. Note, this command will fail since there is no
actual device'''
headers = {
'requesterID': agent_id,
}
self.publish_json(
topics.ACTUATOR_SET(campus='campus',
building='building',
unit='unit',
point='point'), headers, str(0.0))
@periodic(settings.SCHEDULE_PERIOD)
def publish_schedule(self):
'''Periodically publish a schedule request'''
headers = {
'AgentID': agent_id,
'type': 'NEW_SCHEDULE',
'requesterID': agent_id, #The name of the requesting agent.
'taskID': agent_id +
"-ExampleTask", #The desired task ID for this task. It must be unique among all other scheduled tasks.
'priority':
'LOW', #The desired task priority, must be 'HIGH', 'LOW', or 'LOW_PREEMPT'
}
start = str(datetime.datetime.now())
end = str(datetime.datetime.now() + datetime.timedelta(minutes=1))
msg = [
['campus/building/unit', start, end]
#Could add more devices
# ["campus/building/device1", #First time slot.
# "2014-1-31 12:27:00", #Start of time slot.
# "2016-1-31 12:29:00"], #End of time slot.
# ["campus/building/device2", #Second time slot.
# "2014-1-31 12:26:00", #Start of time slot.
# "2016-1-31 12:30:00"], #End of time slot.
# ["campus/building/device3", #Third time slot.
# "2014-1-31 12:30:00", #Start of time slot.
# "2016-1-31 12:32:00"], #End of time slot.
#etc...
]
self.publish_json(topics.ACTUATOR_SCHEDULE_REQUEST, headers, msg)
