def __engine_loop(self):
time_short = 0
error_counter = 0
logger.info('Start terrariumPI engine')
while self.__running:
starttime = time.time()
try:
# Update weather
self.weather.update()
weather_data = self.weather.get_data()
if 'hour_forecast' in weather_data and len(
weather_data['hour_forecast']) > 0:
self.collector.log_weather_data(
weather_data['hour_forecast'][0])
# Update sensors
for sensorid in self.sensors:
# Update the current sensor.
self.sensors[sensorid].update()
# Save new data to database
self.collector.log_sensor_data(
self.sensors[sensorid].get_data())
# Websocket callback
self.get_sensors([sensorid], socket=True)
# Send notification when needed and enabled
if self.sensors[sensorid].is_active(
) and self.sensors[sensorid].notification_enabled(
) and self.sensors[sensorid].get_alarm():
self.notification.message(
'sensor_alarm_' +
('low' if self.sensors[sensorid].get_current() <
self.sensors[sensorid].get_alarm_min() else
'high'), self.sensors[sensorid].get_data())
# Make time for other web request
sleep(0.1)
# Get the current average temperatures
average_data = self.get_sensors(['average'])['sensors']
# Websocket callback
self.__send_message({
'type': 'sensor_gauge',
'data': average_data
})
# Update (remote) power switches
for power_switch_id in self.power_switches:
# Update timer trigger if activated
self.power_switches[power_switch_id].timer()
# Update the current sensor.
self.power_switches[power_switch_id].update()
# Make time for other web request
sleep(0.1)
# Websocket messages back
self.get_uptime(socket=True)
self.get_power_usage_water_flow(socket=True)
self.get_environment(socket=True)
self.get_audio_playing(socket=True)
# Log system stats
system_data = self.get_system_stats()
self.collector.log_system_data(system_data)
self.get_system_stats(socket=True)
for webcamid in self.webcams:
self.webcams[webcamid].update()
sleep(0.1)
except Exception, err:
print err
display_message = [
'%s %s' % (
_('Uptime'),
terrariumUtils.format_uptime(system_data['uptime']),
),
'%s %s %s %s' %
(_('Load'), system_data['load']['load1'],
system_data['load']['load5'], system_data['load']['load15']),
'%s %.2f%s' % (_('CPU Temp.'), system_data['temperature'],
self.get_temperature_indicator())
]
for env_part in average_data:
alarm_icon = '!' if average_data[env_part]['alarm'] else ''
display_message.append(
'%s%s %.2f%s%s' %
(alarm_icon, _(env_part.replace('average_', '').title()),
average_data[env_part]['current'],
average_data[env_part]['indicator'], alarm_icon))
self.notification.send_display(display_message)
duration = (time.time() - starttime) + time_short
if duration < terrariumEngine.LOOP_TIMEOUT:
if error_counter > 0:
error_counter -= 1
logger.info(
'Update done in %.5f seconds. Waiting for %.5f seconds for next update'
% (duration, terrariumEngine.LOOP_TIMEOUT - duration))
time_short = 0
sleep(terrariumEngine.LOOP_TIMEOUT -
duration) # TODO: Config setting
else:
error_counter += 1
if error_counter > 9:
logger.error(
'Updating is having problems keeping up. Could not update in 30 seconds for %s times!'
% error_counter)
logger.warning(
'Updating took to much time. Needed %.5f seconds which is %.5f more then the limit %s'
% (duration, duration - terrariumEngine.LOOP_TIMEOUT,
terrariumEngine.LOOP_TIMEOUT))
time_short = duration - terrariumEngine.LOOP_TIMEOUT
if time_short > 12:
# More then 12 seconds to late.... probably never fast enough...
time_short = 0
def __upgrade(self,to_version):
# Set minimal version to 3.0.0
current_version = 300
table_upgrades = {'310' : ['ALTER TABLE system_data ADD COLUMN disk_total INTEGER(6)',
'ALTER TABLE system_data ADD COLUMN disk_used INTEGER(6)',
'ALTER TABLE system_data ADD COLUMN disk_free INTEGER(6)'],
'380' : ['DROP INDEX IF EXISTS sensor_data_type',
'CREATE INDEX IF NOT EXISTS sensor_data_avg ON sensor_data (type, timestamp ASC)',
'DROP INDEX IF EXISTS sensor_data_id',
'CREATE INDEX IF NOT EXISTS sensor_data_id ON sensor_data (id, timestamp ASC)',
'DROP INDEX IF EXISTS switch_data_id',
'CREATE INDEX IF NOT EXISTS switch_data_id ON switch_data (id, timestamp ASC)',
'DROP INDEX IF EXISTS door_data_id',
'CREATE INDEX IF NOT EXISTS door_data_id ON door_data (id, timestamp ASC)']}
try:
with open('.collector.update.{}.sql'.format('393'),'r') as sql_file:
table_upgrades['393'] = [line.strip() for line in sql_file.readlines()]
os.remove('.collector.update.{}.sql'.format('393'))
logger.warning('There are {} sensors that have an updated ID and needs to be renamed in the database. This can take a lot of time! Please wait...'
.format(len(table_upgrades['393'])/2))
except IOError as ex:
# No updates... just ignore
pass
with self.db as db:
cur = db.cursor()
db_version = int(cur.execute('PRAGMA user_version').fetchall()[0][0])
if db_version > current_version:
current_version = db_version
if current_version == to_version:
logger.info('Collector database is up to date')
elif current_version < to_version:
logger.info('Collector database is out of date. Running updates from %s to %s' % (current_version,to_version))
# Execute updates
with self.db as db:
cur = db.cursor()
for update_version in table_upgrades:
if current_version < int(update_version) <= to_version:
# Execute all updates between the versions
for sql_upgrade in table_upgrades[update_version]:
try:
cur.execute(sql_upgrade)
logger.info('Collector database upgrade for version %s succeeded! %s' % (update_version,sql_upgrade))
except Exception as ex:
if 'duplicate column name' not in str(ex):
logger.error('Error updating collector database. Please contact support. Error message: %s' % (ex,))
if '380' == update_version:
self.__upgrade_to_380()
db.commit()
if int(to_version) % 10 == 0:
logger.warning('Cleaning up disk space. This will take a couple of minutes depending on the database size and sd card disk speed.')
filesize = os.path.getsize(terrariumCollector.DATABASE)
speed = 2 # MBps
duration = filesize / 1024.0 / 1024.0 / speed
logger.warning('Current database is {} in size and with a speed of {}MBps it will take {} to complete'.format(terrariumUtils.format_filesize(filesize),speed,terrariumUtils.format_uptime(duration)))
cur.execute('VACUUM')
cur.execute('PRAGMA user_version = ' + str(to_version))
logger.info('Updated collector database. Set version to: %s' % (to_version,))
db.commit()