core/homeassistant/components/mqtt/device_tracker.py

37 lines
1.1 KiB
Python

"""Support for tracking MQTT enabled devices."""
import logging
import voluptuous as vol
from homeassistant.components import mqtt
from homeassistant.components.device_tracker import PLATFORM_SCHEMA
from homeassistant.const import CONF_DEVICES
from homeassistant.core import callback
import homeassistant.helpers.config_validation as cv
from . import CONF_QOS
_LOGGER = logging.getLogger(__name__)
PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend(mqtt.SCHEMA_BASE).extend({
vol.Required(CONF_DEVICES): {cv.string: mqtt.valid_subscribe_topic},
})
async def async_setup_scanner(hass, config, async_see, discovery_info=None):
"""Set up the MQTT tracker."""
devices = config[CONF_DEVICES]
qos = config[CONF_QOS]
for dev_id, topic in devices.items():
@callback
def async_message_received(msg, dev_id=dev_id):
"""Handle received MQTT message."""
hass.async_create_task(
async_see(dev_id=dev_id, location_name=msg.payload))
await mqtt.async_subscribe(
hass, topic, async_message_received, qos)
return True