Add Ted5000 Sensor (#3559)

* Add Ted5000 Sensor

Signed-off-by: Gwendal Grignou <gwendal@gmail.com>

* sensors: ted5000: use requests instead of urllib.

Signed-off-by: Gwendal Grignou <gwendal@gmail.com>

* Update ted5000.py

Add timeout to requests call.

.coveragerc

@@ -262,6 +262,7 @@ omit =
     homeassistant/components/sensor/swiss_hydrological_data.py
     homeassistant/components/sensor/swiss_public_transport.py
     homeassistant/components/sensor/systemmonitor.py
+    homeassistant/components/sensor/ted5000.py
     homeassistant/components/sensor/temper.py
     homeassistant/components/sensor/time_date.py
     homeassistant/components/sensor/torque.py

homeassistant/components/sensor/ted5000.py

@@ -0,0 +1,124 @@
+"""
+Support gahtering ted500 information.
+
+For more details about this platform, please refer to the documentation at
+https://home-assistant.io/components/sensor.ted5000/
+
+Ted5000 collection from
+https://github.com/weirded/ted5000-collectd-plugin/blob/master/ted5000.py
+
+Ted500 framework from glances plugin.
+"""
+import logging
+from datetime import timedelta
+import requests
+import voluptuous as vol
+
+from homeassistant.components.sensor import PLATFORM_SCHEMA
+from homeassistant.const import (CONF_HOST, CONF_NAME, CONF_PORT)
+from homeassistant.helpers import config_validation as cv
+from homeassistant.helpers.entity import Entity
+from homeassistant.util import Throttle
+
+_LOGGER = logging.getLogger(__name__)
+
+REQUIREMENTS = ['xmltodict==0.10.2']
+
+PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
+    vol.Required(CONF_HOST): cv.string,
+    vol.Optional(CONF_PORT, default=80): cv.port,
+    vol.Optional(CONF_NAME, default='ted'): cv.string,
+})
+
+_LOGGER = logging.getLogger(__name__)
+MIN_TIME_BETWEEN_UPDATES = timedelta(seconds=10)
+
+
+# pylint: disable=unused-variable
+def setup_platform(hass, config, add_devices, discovery_info=None):
+    """Setup the Ted5000 sensor."""
+    host = config.get(CONF_HOST)
+    port = config.get(CONF_PORT)
+    url = "http://{}:{}/api/LiveData.xml".format(host, port)
+
+    gateway = Ted5000Gateway(url)
+
+    # Get MUT information to create the sensors.
+    gateway.update()
+
+    dev = []
+    for mtu in gateway.data:
+        dev.append(Ted5000Sensor(gateway, config.get('name'), mtu, 'W'))
+        dev.append(Ted5000Sensor(gateway, config.get('name'), mtu, 'V'))
+
+    add_devices(dev)
+    return True
+
+
+class Ted5000Sensor(Entity):
+    """Implementation of a Ted5000 sensor."""
+
+    def __init__(self, gateway, name, mtu, unit):
+        """Initialize the sensor."""
+        units = {'W': 'power', 'V': 'voltage'}
+        self._gateway = gateway
+        self._name = '%s mtu%d %s' % (name, mtu, units[unit])
+        self._mtu = mtu
+        self._unit = unit
+        self.update()
+
+    @property
+    def name(self):
+        """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()
+
+
+# pylint: disable=too-few-public-methods
+class Ted5000Gateway(object):
+    """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."""
+        import xmltodict
+        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"])
+
+                if power == 0 or voltage == 0:
+                    continue
+                else:
+                    self.data[mtu] = {'W': power,
+                                      'V': voltage / 10}

requirements_all.txt

@@ -515,6 +515,7 @@ xbee-helper==0.0.7
 xboxapi==0.1.1
 
 # homeassistant.components.sensor.swiss_hydrological_data
+# homeassistant.components.sensor.ted5000
 # homeassistant.components.sensor.yr
 xmltodict==0.10.2