"""Support gathering system information of hosts which are running glances."""
from homeassistant.const import CONF_NAME, STATE_UNAVAILABLE
from homeassistant.core import callback
from homeassistant.helpers.dispatcher import async_dispatcher_connect
from homeassistant.helpers.entity import Entity
from .const import DATA_UPDATED, DOMAIN, SENSOR_TYPES
async def async_setup_entry(hass, config_entry, async_add_entities):
"""Set up the Glances sensors."""
client = hass.data[DOMAIN][config_entry.entry_id]
name = config_entry.data[CONF_NAME]
dev = []
for sensor_type, sensor_details in SENSOR_TYPES.items():
if not sensor_details[0] in client.api.data:
continue
if sensor_details[0] in client.api.data:
if sensor_details[0] == "fs":
# fs will provide a list of disks attached
for disk in client.api.data[sensor_details[0]]:
dev.append(
GlancesSensor(
client,
name,
disk["mnt_point"],
SENSOR_TYPES[sensor_type][1],
sensor_type,
SENSOR_TYPES[sensor_type],
)
)
elif sensor_details[0] == "sensors":
# sensors will provide temp for different devices
for sensor in client.api.data[sensor_details[0]]:
dev.append(
GlancesSensor(
client,
name,
sensor["label"],
SENSOR_TYPES[sensor_type][1],
sensor_type,
SENSOR_TYPES[sensor_type],
)
)
elif client.api.data[sensor_details[0]]:
dev.append(
GlancesSensor(
client,
name,
"",
SENSOR_TYPES[sensor_type][1],
sensor_type,
SENSOR_TYPES[sensor_type],
)
)
async_add_entities(dev, True)
class GlancesSensor(Entity):
"""Implementation of a Glances sensor."""
def __init__(
self,
glances_data,
name,
sensor_name_prefix,
sensor_name_suffix,
sensor_type,
sensor_details,
):
"""Initialize the sensor."""
self.glances_data = glances_data
self._sensor_name_prefix = sensor_name_prefix
self._sensor_name_suffix = sensor_name_suffix
self._name = name
self.type = sensor_type
self._state = None
self.sensor_details = sensor_details
self.unsub_update = None
@property
def name(self):
"""Return the name of the sensor."""
return f"{self._name} {self._sensor_name_prefix} {self._sensor_name_suffix}"
@property
def unique_id(self):
"""Set unique_id for sensor."""
return f"{self.glances_data.host}-{self.name}"
@property
def icon(self):
"""Icon to use in the frontend, if any."""
return self.sensor_details[3]
@property
def unit_of_measurement(self):
"""Return the unit the value is expressed in."""
return self.sensor_details[2]
@property
def available(self):
"""Could the device be accessed during the last update call."""
return self.glances_data.available
@property
def state(self):
"""Return the state of the resources."""
return self._state
@property
def should_poll(self):
"""Return the polling requirement for this sensor."""
return False
async def async_added_to_hass(self):
"""Handle entity which will be added."""
self.unsub_update = async_dispatcher_connect(
self.hass, DATA_UPDATED, self._schedule_immediate_update
)
@callback
def _schedule_immediate_update(self):
self.async_schedule_update_ha_state(True)
async def will_remove_from_hass(self):
"""Unsubscribe from update dispatcher."""
if self.unsub_update:
self.unsub_update()
self.unsub_update = None
async def async_update(self):
"""Get the latest data from REST API."""
value = self.glances_data.api.data
if value is None:
return
if value is not None:
if self.sensor_details[0] == "fs":
for var in value["fs"]:
if var["mnt_point"] == self._sensor_name_prefix:
disk = var
break
if self.type == "disk_use_percent":
self._state = disk["percent"]
elif self.type == "disk_use":
self._state = round(disk["used"] / 1024 ** 3, 1)
elif self.type == "disk_free":
try:
self._state = round(disk["free"] / 1024 ** 3, 1)
except KeyError:
self._state = round(
(disk["size"] - disk["used"]) / 1024 ** 3,
1,
)
elif self.type == "sensor_temp":
for sensor in value["sensors"]:
if sensor["label"] == self._sensor_name_prefix:
self._state = sensor["value"]
break
elif self.type == "memory_use_percent":
self._state = value["mem"]["percent"]
elif self.type == "memory_use":
self._state = round(value["mem"]["used"] / 1024 ** 2, 1)
elif self.type == "memory_free":
self._state = round(value["mem"]["free"] / 1024 ** 2, 1)
elif self.type == "swap_use_percent":
self._state = value["memswap"]["percent"]
elif self.type == "swap_use":
self._state = round(value["memswap"]["used"] / 1024 ** 3, 1)
elif self.type == "swap_free":
self._state = round(value["memswap"]["free"] / 1024 ** 3, 1)
elif self.type == "processor_load":
# Windows systems don't provide load details
try:
self._state = value["load"]["min15"]
except KeyError:
self._state = value["cpu"]["total"]
elif self.type == "process_running":
self._state = value["processcount"]["running"]
elif self.type == "process_total":
self._state = value["processcount"]["total"]
elif self.type == "process_thread":
self._state = value["processcount"]["thread"]
elif self.type == "process_sleeping":
self._state = value["processcount"]["sleeping"]
elif self.type == "cpu_use_percent":
self._state = value["quicklook"]["cpu"]
elif self.type == "docker_active":
count = 0
try:
for container in value["docker"]["containers"]:
if (
container["Status"] == "running"
or "Up" in container["Status"]
):
count += 1
self._state = count
except KeyError:
self._state = count
elif self.type == "docker_cpu_use":
cpu_use = 0.0
try:
for container in value["docker"]["containers"]:
if (
container["Status"] == "running"
or "Up" in container["Status"]
):
cpu_use += container["cpu"]["total"]
self._state = round(cpu_use, 1)
except KeyError:
self._state = STATE_UNAVAILABLE
elif self.type == "docker_memory_use":
mem_use = 0.0
try:
for container in value["docker"]["containers"]:
if (
container["Status"] == "running"
or "Up" in container["Status"]
):
mem_use += container["memory"]["usage"]
self._state = round(mem_use / 1024 ** 2, 1)
except KeyError:
self._state = STATE_UNAVAILABLE