class EnvSensor():
def __init__(self, config):
self.data = Data()
self.config = config
self.instrument_class = 'env_sensor'
self.name = config['instrument_name']
server_address = (config['interface_config']['host'],
config['interface_config']['port'])
self.iface = TCPInterface(server_address, self.data)
self.iface.start()
df_config = {
'base_path': config['datafile_config']['base_path'],
'instrument_class': self.instrument_class,
'instrument_name': self.name,
'write_freq': config['datafile_config']['write_freq'],
}
self.data_file = DataFile(df_config)
self.out_dt = ''
self.out_data = {}
#self.data = None
self.task_list = []
def start(self):
print("Starting EnvSensor")
#self.attempt_connect = True
task = asyncio.ensure_future(self.read_loop())
self.task_list.append(task)
self.is_running = True
def stop(self):
self.iface.stop()
#tasks = asyncio.Task.all_tasks()
for t in self.task_list:
# print('stop:')
# print(t)
t.cancel()
self.task_list.remove(t)
# tasks.remove(t)
self.is_running = False
self.attempt_connect = False
async def read_loop(self):
last_read = datetime.now()
# print(last_read)
while True:
# print(self.iface.has_data())
if (self.iface.has_data()):
# print('here')
buffer = self.iface.read()[0]
# print(buffer)
# print('here2')
dt = buffer['DateTime']
# print(dt)
#buf = buffer['Data']
# print(buf)
# print(buffer['Data']['RH']['value'])
# print(buffer['Data']['RH'])
buf = buffer['InstrumentData']
# print(buf)
meas_list = buf['METADATA']['MeasurementList']
# print(meas_list)
self.out_dt = dt
#dat = {}
out = ''
for meas in meas_list:
value = buf['DATA'][meas]['value']
units = buf['DATA'][meas]['units']
self.out_data[meas] = {
'value': buf['DATA'][meas]['value'],
'units': buf['DATA'][meas]['units'],
}
# print(meas)
# print(dat)
# print(self.out_data)
# print(type(value))
# print(units)
out += ' {}={:.2f}{}'.format(meas, value, units)
# print(out)
#t = buffer['Data']['Temperature']['value']
#rh = buffer['Data']['RH']['value']
# print(rh)
#print('[{}] -- {} : T={}C, RH={}%'.format(self.name,dt,t,rh))
#print('[{}] -- {} : {}'.format(self.name,dt,out))
self.data_file.append(buffer)
last_read = datetime.now()
# print(last_read)
#buffer = data.get()
#print('buffer : ' + buffer)
# print('read_buffer:')
# print(buffer)
delta = (datetime.now() - last_read).total_seconds()
# print(delta)
if delta > 5.0:
self.out_dt = ''
self.out_data = {}
# pass
await asyncio.sleep(0.1)
