def set_amp_power(power_state, relay_name, amp_zone_index):
try:
relay = models.ZoneCustomRelay.query.filter_by(relay_pin_name=relay_name).first()
power_state = bool(power_state)
if relay is not None:
initial_relay_state = relay.relay_is_on
# power on main relay for amp or on/off if there is no zone
if power_state is True or amp_zone_index == 0:
relay.relay_is_on = power_state
commit()
# dispatch as UI action otherwise change actions are not triggered
dispatcher.send(signal=Constant.SIGNAL_UI_DB_POST, model=models.ZoneCustomRelay, row=relay)
msg = "Set relay {} to state {} zone_index={}\n".format(relay_name, power_state, amp_zone_index)
#L.l.debug(msg)
else:
msg = "Not changed relay state for {}\n".format(relay_name)
else:
msg = "Could not find relay name {}\n".format(relay_name)
L.l.warning(msg)
return msg
# change amp zone power
if amp_zone_index is None or amp_zone_index == 0:
# only main relay change is needed
return msg + "Power in {} set to {}\n".format(relay_name, relay.relay_is_on)
else:
# potentially amp settings change is required to switch amp zones
if initial_relay_state is not True and power_state is True:
# delay to wait for amp to fully start
time.sleep(5)
result_amp = amp_zone_power(power_state, amp_zone_index)
return msg + result_amp
except Exception as ex:
L.l.error("Error set_amp_power {}".format(ex))
return "Error set_amp_power {}".format(ex)
def setup_in_ports(gpio_pin_list):
# Log.logger.info('Socket timeout={}'.format(socket.getdefaulttimeout()))
# socket.setdefaulttimeout(None)
global __callback, __pi
L.l.info('Configuring {} gpio input ports'.format(len(gpio_pin_list)))
if __pi:
if socket.getdefaulttimeout() is not None:
L.l.critical('PiGpio callbacks cannot be started as socket timeout is not None')
else:
for gpio_pin in gpio_pin_list:
if gpio_pin.pin_type == Constant.GPIO_PIN_TYPE_PI_STDGPIO:
try:
L.l.info('Set pincode={} type={} index={} as input'.format(gpio_pin.pin_code,
gpio_pin.pin_type,
gpio_pin.pin_index_bcm))
__pi.set_mode(int(gpio_pin.pin_index_bcm), pigpio.INPUT)
# https://learn.sparkfun.com/tutorials/pull-up-resistors
__pi.set_pull_up_down(int(gpio_pin.pin_index_bcm), pigpio.PUD_UP)
__callback.append(__pi.callback(user_gpio=int(gpio_pin.pin_index_bcm),
edge=pigpio.EITHER_EDGE, func=input_event))
gpio_pin_record = models.GpioPin().query_filter_first(
models.GpioPin.pin_code.in_([gpio_pin.pin_code]),
models.GpioPin.host_name.in_([Constant.HOST_NAME]))
gpio_pin_record.pin_direction = Constant.GPIO_PIN_DIRECTION_IN
commit()
except Exception, ex1:
L.l.critical('Unable to setup pigpio_gpio pin, er={}'.format(ex1))
else:
L.l.info('Skipping PiGpio setup for pin {} with type {}'.format(gpio_pin.pin_code,
gpio_pin.pin_type))
L.l.info('Exit gpio callback thread loop')
def generic_db_update(model_name, filter_name, filter_value, field_name, field_value):
try:
L.l.info("Execute API generic_db_update model={} filter={} filtervalue={} field={} fieldvalue={}"
.format(model_name, filter_name, filter_value, field_name, field_value))
table = utils.class_for_name('main.admin.models', model_name)
# http://stackoverflow.com/questions/19506105/flask-sqlalchemy-query-with-keyword-as-variable
kwargs = {filter_name: filter_value}
# avoid getting "This session is in 'committed' state; no further SQL can be emitted within this transaction"
db.session.remove()
# db.session = db.create_scoped_session()
record = table.query.filter_by(**kwargs).first()
if record:
if hasattr(record, field_name):
setattr(record, field_name, field_value)
db.session.add(record)
commit()
# dispatch as UI action otherwise change actions are not triggered
dispatcher.send(signal=Constant.SIGNAL_UI_DB_POST, model=table, row=record)
return '%s: %s' % (Constant.SCRIPT_RESPONSE_OK, record)
else:
msg = 'Field {} not found in record {}'.format(field_name, record)
L.l.warning(msg)
return '%s: %s' % (Constant.SCRIPT_RESPONSE_NOTOK, msg)
else:
msg = 'No records returned for filter_name={} and filter_value={}'.format(filter_name, filter_value)
L.l.warning(msg)
return '%s: %s' % (Constant.SCRIPT_RESPONSE_NOTOK, msg)
except Exception as ex:
msg = 'Exception on /apiv1/db_update: {}'.format(ex)
L.l.error(msg, exc_info=1)
return '%s: %s' % (Constant.SCRIPT_RESPONSE_NOTOK, msg)
finally:
# db.session.remove()
pass
def record_update(obj_dict=None):
if not obj_dict:
obj_dict = {}
try:
source_host_name = utils.get_object_field_value(
obj_dict, Constant.JSON_PUBLISH_SOURCE_HOST)
zone_id = utils.get_object_field_value(
obj_dict, utils.get_model_field_name(models.ZoneHeatRelay.zone_id))
pin_name = utils.get_object_field_value(
obj_dict,
utils.get_model_field_name(models.ZoneHeatRelay.heat_pin_name))
is_on = utils.get_object_field_value(
obj_dict,
utils.get_model_field_name(models.ZoneHeatRelay.heat_is_on))
# fixme: remove hard reference to object field
sent_on = utils.get_object_field_value(obj_dict, "event_sent_datetime")
L.l.debug(
'Received heat relay update from {} zoneid={} pin={} is_on={} sent={}'
.format(source_host_name, zone_id, pin_name, is_on, sent_on))
zone_heat_relay = models.ZoneHeatRelay.query.filter_by(
zone_id=zone_id).first()
if zone_heat_relay:
gpio_host_name = zone_heat_relay.gpio_host_name
cmd_heat_is_on = utils.get_object_field_value(
obj_dict,
utils.get_model_field_name(models.ZoneHeatRelay.heat_is_on))
L.l.debug(
'Local heat state zone_id {} must be changed to {} on pin {}'.
format(zone_id, cmd_heat_is_on, zone_heat_relay.gpio_pin_code))
if cmd_heat_is_on:
pin_value = 1
else:
pin_value = 0
# set pin only on pins owned by this host
if zone_heat_relay and gpio_host_name == Constant.HOST_NAME:
L.l.info("Setting heat pin {} to {}".format(
zone_heat_relay.gpio_pin_code, pin_value))
pin_state = gpio.relay_update(
gpio_pin_code=zone_heat_relay.gpio_pin_code,
pin_value=pin_value)
else:
pin_state = pin_value
if pin_state == pin_value:
pin_state = (pin_state == 1)
zone_heat_relay.heat_is_on = pin_state
zone_heat_relay.notify_transport_enabled = False
commit()
else:
L.l.warning(
'Heat state zone_id {} unexpected val={} after setval={}'.
format(zone_id, pin_state, pin_value))
else:
L.l.warning(
'No heat relay defined for zone {}, db data issue?'.format(
zone_id))
except Exception as ex:
L.l.warning('Error updating heat relay state, err {}'.format(ex))
def get_pin_bcm(bcm_id=''):
'''BCM pin id format. Return value is 0 or 1.'''
if not __is_pin_setup(bcm_id):
__set_pin_dir_in(bcm_id)
if __is_pin_setup(bcm_id):
pin_value = __read_line(bcm_id)
gpio_pin = models.GpioPin.query.filter_by(pin_index_bcm=bcm_id, host_name=Constant.HOST_NAME).first()
if gpio_pin:
gpio_pin.pin_value = pin_value
commit()
return pin_value
else:
L.l.critical('Unable to get pin bcm {}'.format(bcm_id))
def __set_pin_dir_in(bcm_id=''):
try:
# file = open('/sys/class/gpio/gpio{}/direction'.format(bcm_id), 'a')
# print >> file, 'in'
# file.close()
__setup_pin(bcm_id)
if __write_to_file_as_root(file='/sys/class/gpio/gpio{}/direction'.format(bcm_id), value='in'):
L.l.info('Set pin {} direction IN is OK'.format(bcm_id))
gpio_pin = __get_gpio_db_pin(bcm_id)
if gpio_pin:
gpio_pin.pin_direction = 'in'
commit()
return True
except Exception, ex:
L.l.warning('Unexpected exception on pin {} direction IN set, err {}'.format(bcm_id, ex))
return False
def __is_pin_setup(bcm_id=''):
try:
file = open('/sys/class/gpio/gpio{}/value'.format(bcm_id), 'r')
file.close()
gpio_pin = models.GpioPin.query.filter_by(pin_index_bcm=bcm_id, host_name=Constant.HOST_NAME).first()
if gpio_pin and not gpio_pin.is_active:
L.l.warning(
'Gpio pin={} is used not via me, conflict with ext. apps or unclean stop?'.format(bcm_id))
gpio_pin.is_active = True
commit()
return True
except IOError:
return False
except Exception, ex:
L.l.warning('Unexpected exception on pin setup check, err {}'.format(ex))
db.session.rollback()
return False
def __save_heat_state_db(zone, heat_is_on):
assert isinstance(zone, models.Zone)
zone_heat_relay = models.ZoneHeatRelay.query.filter_by(
zone_id=zone.id).first()
if zone_heat_relay is not None:
zone_heat_relay.heat_is_on = heat_is_on
zone_heat_relay.updated_on = utils.get_base_location_now_date()
L.l.debug(
'Heat state changed to is-on={} via pin={} in zone={}'.format(
heat_is_on, zone_heat_relay.heat_pin_name, zone.name))
zone_heat_relay.notify_transport_enabled = True
zone_heat_relay.save_to_graph = True
zone_heat_relay.save_to_history = True
# save latest heat state for caching purposes
zone.heat_is_on = heat_is_on
zone.last_heat_status_update = utils.get_base_location_now_date()
commit()
else:
L.l.warning('No heat relay found in zone {}'.format(zone.name))
def handle_event_alarm(gpio_pin_code='',
direction='',
pin_value='',
pin_connected=None):
zonealarm = models.ZoneAlarm.query.filter_by(
gpio_pin_code=gpio_pin_code,
gpio_host_name=Constant.HOST_NAME).first()
if zonealarm is not None:
zonearea = models.ZoneArea().query_filter_first(
models.ZoneArea.zone_id == zonealarm.zone_id)
if zonearea is not None:
area = models.Area().query_filter_first(
models.Area.id == zonearea.area_id)
if area is not None:
zonealarm.start_alarm = area.is_armed
zone = models.Zone.query.filter_by(
id=zonealarm.zone_id).first()
if zone is not None:
dispatcher.send(signal=Constant.SIGNAL_ALARM,
zone_name=zone.name,
alarm_pin_name=zonealarm.alarm_pin_name,
pin_connected=pin_connected)
# L.l.info('Got alarm {} zone={} pin={} pin_conn={} pin_value={} gpio={}'.format(
# zone.name, zonealarm.zone_id, zonealarm.alarm_pin_name,
# pin_connected, pin_value, gpio_pin_code))
else:
L.l.error(
"Could not find zone for gpio pin {}, trigger actions could be missed"
.format(gpio_pin_code))
zonealarm.alarm_pin_triggered = not pin_connected
zonealarm.updated_on = utils.get_base_location_now_date()
zonealarm.notify_transport_enabled = True
commit()
else:
L.l.warning('Zone {} is mapped to missing area' %
zonealarm.zone_id)
else:
L.l.warning('Zone %s not mapped to an area' % zonealarm.zone_id)
else:
L.l.info('Mising zone alarm for gpio code {}'.format(gpio_pin_code))
def __update_zone_heat(zone, heat_schedule, sensor):
heat_is_on = False
main_source_needed = True
try:
minute = utils.get_base_location_now_date().minute
hour = utils.get_base_location_now_date().hour
weekday = datetime.datetime.today().weekday()
# todo: insert here auto heat change based on presence status
if weekday <= 4: # Monday=0
schedule_pattern = models.SchedulePattern.query.filter_by(
id=heat_schedule.pattern_week_id).first()
else:
schedule_pattern = models.SchedulePattern.query.filter_by(
id=heat_schedule.pattern_weekend_id).first()
if schedule_pattern:
main_source_needed = schedule_pattern.main_source_needed
if main_source_needed is False:
L.l.info(
"Main heat source is not needed for zone {}".format(zone))
force_off = False
# set heat to off if condition is met (i.e. do not try to heat water if heat source is cold)
if schedule_pattern.activate_on_condition:
relay_name = schedule_pattern.activate_condition_relay
zone_heat_relay = models.ZoneHeatRelay.query.filter_by(
heat_pin_name=relay_name).first()
if zone_heat_relay is not None:
force_off = zone_heat_relay.heat_is_on is False
if force_off:
L.l.info(
'Deactivating heat in zone {} due to relay {}'.
format(zone, zone_heat_relay))
else:
L.l.error('Could not find the heat relay for zone heat {}'.
format(zone))
# strip formatting characters that are not used to represent target temperature
pattern = str(schedule_pattern.pattern).replace('-', '').replace(
' ', '')
# check pattern validity
if len(pattern) == 24:
temperature_code = pattern[hour]
temperature_target = models.TemperatureTarget.query.filter_by(
code=temperature_code).first()
# check if we need forced heat on, if for this hour temp has a upper target than min
force_on = False
if schedule_pattern.keep_warm:
if len(schedule_pattern.keep_warm_pattern) == 20:
interval = int(minute / 5)
delta_warm = sensor.temperature - temperature_target.target
if delta_warm <= P.MAX_DELTA_TEMP_KEEP_WARM:
force_on = (
(schedule_pattern.keep_warm_pattern[interval]
== "1")
and temperature_code is not P.TEMP_NO_HEAT)
else:
L.l.info(
"Temperature is too high with delta {}, ignoring keep warm"
.format(delta_warm))
else:
L.l.critical(
"Missing keep warm pattern for zone {}".format(
zone.name))
if temperature_target:
if zone.active_heat_schedule_pattern_id != schedule_pattern.id:
L.l.debug(
'Pattern in zone {} changed to {}, target={}'.
format(zone.name, schedule_pattern.name,
temperature_target.target))
zone.active_heat_schedule_pattern_id = schedule_pattern.id
zone.heat_target_temperature = temperature_target.target
commit()
if sensor.temperature is not None:
heat_is_on = __decide_action(zone,
sensor.temperature,
temperature_target.target,
force_on=force_on,
force_off=force_off)
#else:
# heat_is_on = zone.heat_is_on
else:
L.l.critical('Unknown temperature pattern code {}'.format(
temperature_code))
else:
L.l.warning(
'Incorrect temp pattern [{}] in zone {}, length is not 24'.
format(pattern, zone.name))
except Exception as ex:
L.l.error('Error updatezoneheat, err={}'.format(ex, exc_info=True))
#Log.logger.info("Temp in {} has target={} and current={}, heat should be={}".format(zone.name,
# zone.heat_target_temperature,
# sensor.temperature, heat_is_on))
return heat_is_on, main_source_needed
def set_main_heat_source():
heat_source_relay_list = models.ZoneHeatRelay.query.filter(
models.ZoneHeatRelay.temp_sensor_name is not None).all()
up_limit = P.temp_limit + P.threshold
for heat_source_relay in heat_source_relay_list:
# is there is a temp sensor defined, consider this source as possible alternate source
if heat_source_relay.temp_sensor_name is not None:
temp_rec = models.Sensor().query_filter_first(
models.Sensor.sensor_name.in_(
[heat_source_relay.temp_sensor_name]))
# if alternate source is valid
# fixok: add temp threshold to avoid quick on/offs
if temp_rec is not None \
and ((temp_rec.temperature >= up_limit and not heat_source_relay.is_alternate_source_switch)
or (temp_rec.temperature >= P.temp_limit and heat_source_relay.is_alternate_source_switch)):
if heat_source_relay.is_alternate_source_switch:
# stop main heat source
heatrelay_main_source = models.ZoneHeatRelay.query.filter_by(
is_main_heat_source=1).first()
main_source_zone = models.Zone.query.filter_by(
id=heatrelay_main_source.zone_id).first()
__save_heat_state_db(zone=main_source_zone,
heat_is_on=False)
# turn switch valve on to alternate position
switch_source_zone = models.Zone.query.filter_by(
id=heat_source_relay.zone_id).first()
__save_heat_state_db(zone=switch_source_zone,
heat_is_on=True)
else:
# mark this source as active, to be started when there is heat need
if heat_source_relay.is_alternate_heat_source is False:
L.l.info(
'Alternate heat source is active with temp={}'.
format(temp_rec.temperature))
heat_source_relay.is_alternate_heat_source = True
commit()
else:
# if alternate source is no longer valid
if heat_source_relay.is_alternate_source_switch:
# stop alternate heat source
#heatrelay_alt_source = models.ZoneHeatRelay.query.filter_by(is_alternate_heat_source=1).first()
#if heatrelay_alt_source is not None:
# alt_source_zone = models.Zone.query.filter_by(id=heatrelay_alt_source.zone_id).first()
# __save_heat_state_db(zone=alt_source_zone, heat_is_on=False)
# turn valve back to main position
switch_source_zone = models.Zone.query.filter_by(
id=heat_source_relay.zone_id).first()
__save_heat_state_db(zone=switch_source_zone,
heat_is_on=False)
else:
# mark this source as inactive, let main source to start
if heat_source_relay.is_alternate_heat_source:
# force alt source shutdown if was on
alt_source_zone = models.Zone.query.filter_by(
id=heat_source_relay.zone_id).first()
__save_heat_state_db(zone=alt_source_zone,
heat_is_on=False)
# todo: sleep needed to allow for valve return
if heat_source_relay.is_alternate_heat_source is True:
L.l.info(
'Alternate heat source is now inactive, temp source is {}'
.format(temp_rec))
heat_source_relay.is_alternate_heat_source = False
commit()
def update_master_state():
master_overall_selected = False
try:
alive_date_time = utils.get_base_location_now_date(
) - datetime.timedelta(minutes=1)
node_list = models.Node.query.order_by(models.Node.priority).all()
for node in node_list:
#if recently alive, in order of id prio
if node.updated_on >= alive_date_time and (
not master_overall_selected):
if node.is_master_overall:
L.l.debug(
'Node {} is already master, all good we have a master'.
format(node.name))
master_overall_selected = True
else:
L.l.info('Node {} will become a master'.format(node.name))
if node.name == Constant.HOST_NAME:
node.is_master_overall = True
node.notify_enabled_ = True
commit()
master_overall_selected = True
else:
if master_overall_selected and node.is_master_overall:
L.l.debug(
'Node {} should lose master status, if alive'.format(
node.name))
if node.name == Constant.HOST_NAME:
node.is_master_overall = False
node.notify_enabled_ = True
commit()
# applying node master status locally, if changed in db
if node.name == Constant.HOST_NAME:
variable.NODE_THIS_IS_MASTER_LOGGING = node.is_master_logging
if variable.NODE_THIS_IS_MASTER_OVERALL != node.is_master_overall:
if not node.is_master_overall:
# disabling local mastership immediately
variable.NODE_THIS_IS_MASTER_OVERALL = node.is_master_overall
L.l.info(
'Immediate change in node mastership, local node is master={}'
.format(variable.NODE_THIS_IS_MASTER_OVERALL))
else:
global since_when_i_should_be_master
# check seconds lapsed since cluster agreed I must be or lose master
seconds_elapsed = (
utils.get_base_location_now_date() -
since_when_i_should_be_master).total_seconds()
if check_if_no_masters_overall(
) or seconds_elapsed > 10:
variable.NODE_THIS_IS_MASTER_OVERALL = node.is_master_overall
L.l.info(
'Change in node mastership, local node is master={}'
.format(variable.NODE_THIS_IS_MASTER_OVERALL))
since_when_i_should_be_master = datetime.datetime.max
else:
# L.l.info('Waiting to set master status, sec. lapsed={}'.format(seconds_elapsed))
pass
if not variable.NODE_THIS_IS_MASTER_OVERALL:
# record date when cluster agreed I must be master
if since_when_i_should_be_master == datetime.datetime.max:
since_when_i_should_be_master = utils.get_base_location_now_date(
)
except Exception as ex:
L.l.warning('Error try_become_master, err {}'.format(ex))
