Added a system monitoring platform to the sensor component

This commit is contained in:
theolind 2015-03-07 14:54:08 +01:00
parent fde0ce1997
commit 19964e914a
3 changed files with 104 additions and 0 deletions

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@ -102,3 +102,15 @@ automation 2:
execute_service: notify.notify
service_data: {"message":"It's 4, time for beer!"}
sensor:
platform: systemmonitor
devices:
- {type: 'disk_use_percent', arg: '/'}
- {type: 'disk_use_percent', arg: '/home'}
- {type: 'disk_use', arg: '/home'}
- {type: 'disk_free', arg: '/'}
- {type: 'memory_use_percent'}
- {type: 'memory_use'}
- {type: 'memory_free'}
- {type: 'processor_use'}

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@ -0,0 +1,89 @@
"""
homeassistant.components.sensor.systemmonitor
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Shows system monitor values such as: disk, memory and processor use
"""
from homeassistant.helpers.device import Device
from homeassistant.const import (
ATTR_UNIT_OF_MEASUREMENT, ATTR_FRIENDLY_NAME)
import psutil
import logging
sensor_types = {
'disk_use_percent': ['Disk Use', '%'],
'disk_use': ['Disk Use', 'GiB'],
'disk_free': ['Disk Free', 'GiB'],
'memory_use_percent': ['RAM Use', '%'],
'memory_use': ['RAM Use', 'MiB'],
'memory_free': ['RAM Free', 'MiB'],
'processor_use': ['CPU Use', '%'],
}
_LOGGER = logging.getLogger(__name__)
# pylint: disable=unused-argument
def setup_platform(hass, config, add_devices, discovery_info=None):
""" Sets up the sensors """
devices = []
for device in config['devices']:
if 'arg' not in device:
device['arg'] = ''
if device['type'] not in sensor_types:
_LOGGER.error('Sensor type: "%s" does not exist', device['type'])
else:
devices.append(SystemMonitorSensor(device['type'], device['arg']))
add_devices(devices)
class SystemMonitorSensor(Device):
""" A system monitor sensor """
def __init__(self, type, argument=''):
self._name = sensor_types[type][0] + ' ' + argument
self.argument = argument
self.type = type
self._state = None
self.unit_of_measurement = sensor_types[type][1]
self.update()
@property
def name(self):
return self._name
@property
def state(self):
""" Returns the state of the device. """
return self._state
@property
def state_attributes(self):
""" Returns the state attributes. """
return {
ATTR_FRIENDLY_NAME: self.name,
ATTR_UNIT_OF_MEASUREMENT: self.unit_of_measurement,
}
def update(self):
if self.type == 'disk_use_percent':
self._state = psutil.disk_usage(self.argument).percent
elif self.type == 'disk_use':
self._state = round(psutil.disk_usage(self.argument).used /
1024**3, 1)
elif self.type == 'disk_free':
self._state = round(psutil.disk_usage(self.argument).free /
1024**3, 1)
elif self.type == 'memory_use_percent':
self._state = psutil.virtual_memory().percent
elif self.type == 'memory_use':
self._state = round((psutil.virtual_memory().total -
psutil.virtual_memory().available) /
1024**2, 1)
elif self.type == 'memory_free':
self._state = round(psutil.virtual_memory().available / 1024**2, 1)
elif self.type == 'processor_use':
self._state = round(psutil.cpu_percent(interval=None))

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@ -35,3 +35,6 @@ pydispatcher>=2.0.5
# pyyaml
pyyaml
# psutil
psutil