92 lines
2.5 KiB
Python
92 lines
2.5 KiB
Python
"""
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Entity to track connections to stream API.
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For more details about this platform, please refer to the documentation at
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https://home-assistant.io/components/sensor.api_stream/
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"""
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import asyncio
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import logging
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from homeassistant.const import EVENT_HOMEASSISTANT_STOP
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from homeassistant.core import callback
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from homeassistant.helpers.entity import Entity
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NAME_WS = 'homeassistant.components.websocket_api'
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NAME_STREAM = 'homeassistant.components.api'
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class StreamHandler(logging.Handler):
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"""Check log messages for stream connect/disconnect."""
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def __init__(self, entity):
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"""Initialize handler."""
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super().__init__()
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self.entity = entity
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self.count = 0
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def handle(self, record):
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"""Handle a log message."""
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if record.name == NAME_STREAM:
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if not record.msg.startswith('STREAM'):
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return
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if record.msg.endswith('ATTACHED'):
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self.entity.count += 1
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elif record.msg.endswith('RESPONSE CLOSED'):
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self.entity.count -= 1
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else:
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if not record.msg.startswith('WS'):
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return
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elif len(record.args) < 2:
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return
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elif record.args[1] == 'Connected':
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self.entity.count += 1
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elif record.args[1] == 'Closed connection':
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self.entity.count -= 1
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self.entity.schedule_update_ha_state()
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@asyncio.coroutine
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def async_setup_platform(hass, config, async_add_devices, discovery_info=None):
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"""Set up the API stream platform."""
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entity = APICount()
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handler = StreamHandler(entity)
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logging.getLogger(NAME_STREAM).addHandler(handler)
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logging.getLogger(NAME_WS).addHandler(handler)
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@callback
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def remove_logger(event):
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"""Remove our handlers."""
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logging.getLogger(NAME_STREAM).removeHandler(handler)
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logging.getLogger(NAME_WS).removeHandler(handler)
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hass.bus.async_listen_once(EVENT_HOMEASSISTANT_STOP, remove_logger)
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async_add_devices([entity])
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class APICount(Entity):
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"""Entity to represent how many people are connected to stream API."""
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def __init__(self):
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"""Initialize the API count."""
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self.count = 0
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@property
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def name(self):
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"""Return name of entity."""
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return "Connected clients"
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@property
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def state(self):
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"""Return current API count."""
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return self.count
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@property
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def unit_of_measurement(self):
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"""Unit of measurement."""
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return "clients"
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