Component for Digital Ocean (#3322)

* Add Digital Ocean implementation

* Remove kernel

homeassistant/components/binary_sensor/digital_ocean.py

@@ -0,0 +1,91 @@
+"""
+Support for monitoring the state of Digital Ocean droplets.
+
+For more details about this component, please refer to the documentation at
+https://home-assistant.io/components/binary_sensor.digital_ocean/
+"""
+import logging
+
+import voluptuous as vol
+
+from homeassistant.components.binary_sensor import (
+    BinarySensorDevice, PLATFORM_SCHEMA)
+from homeassistant.components.digital_ocean import (
+    CONF_DROPLETS, ATTR_CREATED_AT, ATTR_DROPLET_ID, ATTR_DROPLET_NAME,
+    ATTR_FEATURES, ATTR_IPV4_ADDRESS, ATTR_IPV6_ADDRESS, ATTR_MEMORY,
+    ATTR_REGION, ATTR_VCPUS)
+from homeassistant.loader import get_component
+import homeassistant.helpers.config_validation as cv
+
+_LOGGER = logging.getLogger(__name__)
+
+DEFAULT_NAME = 'Droplet'
+DEFAULT_SENSOR_CLASS = 'motion'
+DEPENDENCIES = ['digital_ocean']
+
+PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
+    vol.Required(CONF_DROPLETS): vol.All(cv.ensure_list, [cv.string]),
+})
+
+
+def setup_platform(hass, config, add_devices, discovery_info=None):
+    """Setup the Digital Ocean droplet sensor."""
+    digital_ocean = get_component('digital_ocean')
+    droplets = config.get(CONF_DROPLETS)
+
+    dev = []
+    for droplet in droplets:
+        droplet_id = digital_ocean.DIGITAL_OCEAN.get_droplet_id(droplet)
+        dev.append(DigitalOceanBinarySensor(
+            digital_ocean.DIGITAL_OCEAN, droplet_id))
+
+    add_devices(dev)
+
+
+class DigitalOceanBinarySensor(BinarySensorDevice):
+    """Representation of a Digital Ocean droplet sensor."""
+
+    def __init__(self, do, droplet_id):
+        """Initialize a new Digital Ocean sensor."""
+        self._digital_ocean = do
+        self._droplet_id = droplet_id
+        self._state = None
+        self.update()
+
+    @property
+    def name(self):
+        """Return the name of the sensor."""
+        return self.data.name
+
+    @property
+    def is_on(self):
+        """Return true if the binary sensor is on."""
+        return self.data.status == 'active'
+
+    @property
+    def sensor_class(self):
+        """Return the class of this sensor."""
+        return DEFAULT_SENSOR_CLASS
+
+    @property
+    def state_attributes(self):
+        """Return the state attributes of the Digital Ocean droplet."""
+        return {
+            ATTR_CREATED_AT: self.data.created_at,
+            ATTR_DROPLET_ID: self.data.id,
+            ATTR_DROPLET_NAME: self.data.name,
+            ATTR_FEATURES: self.data.features,
+            ATTR_IPV4_ADDRESS: self.data.ip_address,
+            ATTR_IPV6_ADDRESS: self.data.ip_v6_address,
+            ATTR_MEMORY: self.data.memory,
+            ATTR_REGION: self.data.region['name'],
+            ATTR_VCPUS: self.data.vcpus,
+        }
+
+    def update(self):
+        """Update state of sensor."""
+        self._digital_ocean.update()
+
+        for droplet in self._digital_ocean.data:
+            if droplet.id == self._droplet_id:
+                self.data = droplet