core/homeassistant/components/ted5000/sensor.py

112 lines
3.1 KiB
Python

"""Support gathering ted5000 information."""
from datetime import timedelta
import logging
import requests
import voluptuous as vol
import xmltodict
from homeassistant.components.sensor import PLATFORM_SCHEMA
from homeassistant.const import CONF_HOST, CONF_NAME, CONF_PORT, POWER_WATT
from homeassistant.helpers import config_validation as cv
from homeassistant.helpers.entity import Entity
from homeassistant.util import Throttle
_LOGGER = logging.getLogger(__name__)
DEFAULT_NAME = "ted"
MIN_TIME_BETWEEN_UPDATES = timedelta(seconds=10)
PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend(
{
vol.Required(CONF_HOST): cv.string,
vol.Optional(CONF_PORT, default=80): cv.port,
vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string,
}
)
def setup_platform(hass, config, add_entities, discovery_info=None):
"""Set up the Ted5000 sensor."""
host = config.get(CONF_HOST)
port = config.get(CONF_PORT)
name = config.get(CONF_NAME)
url = f"http://{host}:{port}/api/LiveData.xml"
gateway = Ted5000Gateway(url)
# Get MUT information to create the sensors.
gateway.update()
dev = []
for mtu in gateway.data:
dev.append(Ted5000Sensor(gateway, name, mtu, POWER_WATT))
dev.append(Ted5000Sensor(gateway, name, mtu, "V"))
add_entities(dev)
return True
class Ted5000Sensor(Entity):
"""Implementation of a Ted5000 sensor."""
def __init__(self, gateway, name, mtu, unit):
"""Initialize the sensor."""
units = {POWER_WATT: "power", "V": "voltage"}
self._gateway = gateway
self._name = "{} mtu{} {}".format(name, mtu, units[unit])
self._mtu = mtu
self._unit = unit
self.update()
@property
def name(self):
"""Return the name of the sensor."""
return self._name
@property
def unit_of_measurement(self):
"""Return the unit the value is expressed in."""
return self._unit
@property
def state(self):
"""Return the state of the resources."""
try:
return self._gateway.data[self._mtu][self._unit]
except KeyError:
pass
def update(self):
"""Get the latest data from REST API."""
self._gateway.update()
class Ted5000Gateway:
"""The class for handling the data retrieval."""
def __init__(self, url):
"""Initialize the data object."""
self.url = url
self.data = dict()
@Throttle(MIN_TIME_BETWEEN_UPDATES)
def update(self):
"""Get the latest data from the Ted5000 XML API."""
try:
request = requests.get(self.url, timeout=10)
except requests.exceptions.RequestException as err:
_LOGGER.error("No connection to endpoint: %s", err)
else:
doc = xmltodict.parse(request.text)
mtus = int(doc["LiveData"]["System"]["NumberMTU"])
for mtu in range(1, mtus + 1):
power = int(doc["LiveData"]["Power"]["MTU%d" % mtu]["PowerNow"])
voltage = int(doc["LiveData"]["Voltage"]["MTU%d" % mtu]["VoltageNow"])
self.data[mtu] = {POWER_WATT: power, "V": voltage / 10}