mirror of
https://github.com/home-assistant/core
synced 2024-08-02 23:40:32 +02:00
47 lines
1.3 KiB
Python
47 lines
1.3 KiB
Python
"""
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This package contains components that can be plugged into Home Assistant.
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Component design guidelines:
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- Each component defines a constant DOMAIN that is equal to its filename.
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- Each component that tracks states should create state entity names in the
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format "<DOMAIN>.<OBJECT_ID>".
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- Each component should publish services only under its own domain.
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"""
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import logging
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from homeassistant.core import split_entity_id
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# mypy: allow-untyped-defs
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_LOGGER = logging.getLogger(__name__)
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def is_on(hass, entity_id=None):
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"""Load up the module to call the is_on method.
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If there is no entity id given we will check all.
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"""
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if entity_id:
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entity_ids = hass.components.group.expand_entity_ids([entity_id])
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else:
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entity_ids = hass.states.entity_ids()
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for ent_id in entity_ids:
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domain = split_entity_id(ent_id)[0]
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try:
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component = getattr(hass.components, domain)
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except ImportError:
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_LOGGER.error("Failed to call %s.is_on: component not found", domain)
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continue
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if not hasattr(component, "is_on"):
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_LOGGER.warning("Integration %s has no is_on method", domain)
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continue
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if component.is_on(ent_id):
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return True
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return False
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