Added new sensor meteoalarm to get weather alerts in Europe

.coveragerc

@@ -347,6 +347,7 @@ omit =
     homeassistant/components/message_bird/notify.py
     homeassistant/components/met/weather.py
     homeassistant/components/meteo_france/*
+    homeassistant/components/meteoalarm/sensor.py
     homeassistant/components/metoffice/sensor.py
     homeassistant/components/metoffice/weather.py
     homeassistant/components/microsoft/tts.py

CODEOWNERS

@@ -143,6 +143,7 @@ homeassistant/components/matrix/* @tinloaf
 homeassistant/components/mediaroom/* @dgomes
 homeassistant/components/melissa/* @kennedyshead
 homeassistant/components/met/* @danielhiversen
+homeassistant/components/meteoalarm/* @rolfberkenbosch
 homeassistant/components/miflora/* @danielhiversen @ChristianKuehnel
 homeassistant/components/mill/* @danielhiversen
 homeassistant/components/min_max/* @fabaff

homeassistant/components/meteoalarm/__init__.py

@@ -0,0 +1 @@
+"""The meteoalarm component."""

homeassistant/components/meteoalarm/manifest.json

@@ -0,0 +1,10 @@
+{
+  "domain": "meteoalarm",
+  "name": "meteoalarm",
+  "documentation": "https://www.home-assistant.io/components/meteoalarm",
+  "requirements": [
+    "meteoalertapi==0.0.8"
+  ],
+  "dependencies": [],
+  "codeowners": ["@rolfberkenbosch"]
+}

homeassistant/components/meteoalarm/sensor.py

@@ -0,0 +1,93 @@
+"""Sensor for MeteoAlarm.eu."""
+from datetime import timedelta
+import logging
+
+import voluptuous as vol
+
+from homeassistant.components.sensor import PLATFORM_SCHEMA
+from homeassistant.const import (
+    ATTR_ATTRIBUTION, CONF_NAME)
+import homeassistant.helpers.config_validation as cv
+from homeassistant.helpers.entity import Entity
+
+_LOGGER = logging.getLogger(__name__)
+
+CONF_COUNTRY = 'country'
+CONF_PROVINCE = 'province'
+CONF_LANGUAGE = 'language'
+
+ATTRIBUTION = ("Information provided by MeteoAlarm.")
+
+DEFAULT_NAME = 'meteoalarm'
+
+ICON = 'mdi:alert'
+
+SCAN_INTERVAL = timedelta(minutes=30)
+
+
+PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
+    vol.Required(CONF_COUNTRY): cv.string,
+    vol.Required(CONF_PROVINCE): cv.string,
+    vol.Optional(CONF_LANGUAGE, default='en'): cv.string,
+    vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string,
+})
+
+
+def setup_platform(hass, config, add_entities, discovery_info=None):
+    """Set up the MeteoAlarm sensor platform."""
+    from meteoalertapi import Meteoalert
+
+    country = config[CONF_COUNTRY]
+    province = config[CONF_PROVINCE]
+    language = config[CONF_LANGUAGE]
+    name = config[CONF_NAME]
+
+    try:
+        api = Meteoalert(country, province, language)
+    except KeyError():
+        _LOGGER.error("Wrong country digits, or province name")
+        return
+
+    add_entities([MeteoAlertSensor(api, name)], True)
+
+
+class MeteoAlertSensor(Entity):
+    """Representation of a MeteoAlert sensor."""
+
+    def __init__(self, api, name):
+        """Initialize the MeteoAlert sensor."""
+        self._name = name
+        self._attributes = {}
+        self._state = None
+        self._api = api
+
+    @property
+    def name(self):
+        """Return the name of the sensor."""
+        return self._name
+
+    @property
+    def state(self):
+        """Return the state of the sensor."""
+        return self._state
+
+    @property
+    def device_state_attributes(self):
+        """Return the state attributes."""
+        self._attributes[ATTR_ATTRIBUTION] = ATTRIBUTION
+        return self._attributes
+
+    @property
+    def icon(self):
+        """Icon to use in the frontend."""
+        return ICON
+
+    def update(self):
+        """Update device state."""
+        alert = self._api.get_alert()
+        if alert:
+            self._attributes = alert
+            self._state = alert.pop('headline')
+        else:
+            self._attributes = {}
+            self._state = 'no warnings'

requirements_all.txt

@@ -703,6 +703,9 @@ mbddns==0.1.2
 # homeassistant.components.message_bird
 messagebird==1.2.0
 
+# homeassistant.components.meteoalarm
+meteoalertapi==0.0.8
+
 # homeassistant.components.meteo_france
 meteofrance==0.3.4