home-assistant/homeassistant/helpers/entityfilter.py
Paulus Schoutsen 4de97abc3a Black
2019-07-31 12:25:30 -07:00

120 lines
4.1 KiB
Python

"""Helper class to implement include/exclude of entities and domains."""
from typing import Callable, Dict, List
import voluptuous as vol
from homeassistant.core import split_entity_id
from homeassistant.helpers import config_validation as cv
CONF_INCLUDE_DOMAINS = "include_domains"
CONF_INCLUDE_ENTITIES = "include_entities"
CONF_EXCLUDE_DOMAINS = "exclude_domains"
CONF_EXCLUDE_ENTITIES = "exclude_entities"
def _convert_filter(config: Dict[str, List[str]]) -> Callable[[str], bool]:
filt = generate_filter(
config[CONF_INCLUDE_DOMAINS],
config[CONF_INCLUDE_ENTITIES],
config[CONF_EXCLUDE_DOMAINS],
config[CONF_EXCLUDE_ENTITIES],
)
setattr(filt, "config", config)
setattr(filt, "empty_filter", sum(len(val) for val in config.values()) == 0)
return filt
FILTER_SCHEMA = vol.All(
vol.Schema(
{
vol.Optional(CONF_EXCLUDE_DOMAINS, default=[]): vol.All(
cv.ensure_list, [cv.string]
),
vol.Optional(CONF_EXCLUDE_ENTITIES, default=[]): cv.entity_ids,
vol.Optional(CONF_INCLUDE_DOMAINS, default=[]): vol.All(
cv.ensure_list, [cv.string]
),
vol.Optional(CONF_INCLUDE_ENTITIES, default=[]): cv.entity_ids,
}
),
_convert_filter,
)
def generate_filter(
include_domains: List[str],
include_entities: List[str],
exclude_domains: List[str],
exclude_entities: List[str],
) -> Callable[[str], bool]:
"""Return a function that will filter entities based on the args."""
include_d = set(include_domains)
include_e = set(include_entities)
exclude_d = set(exclude_domains)
exclude_e = set(exclude_entities)
have_exclude = bool(exclude_e or exclude_d)
have_include = bool(include_e or include_d)
# Case 1 - no includes or excludes - pass all entities
if not have_include and not have_exclude:
return lambda entity_id: True
# Case 2 - includes, no excludes - only include specified entities
if have_include and not have_exclude:
def entity_filter_2(entity_id: str) -> bool:
"""Return filter function for case 2."""
domain = split_entity_id(entity_id)[0]
return entity_id in include_e or domain in include_d
return entity_filter_2
# Case 3 - excludes, no includes - only exclude specified entities
if not have_include and have_exclude:
def entity_filter_3(entity_id: str) -> bool:
"""Return filter function for case 3."""
domain = split_entity_id(entity_id)[0]
return entity_id not in exclude_e and domain not in exclude_d
return entity_filter_3
# Case 4 - both includes and excludes specified
# Case 4a - include domain specified
# - if domain is included, pass if entity not excluded
# - if domain is not included, pass if entity is included
# note: if both include and exclude domains specified,
# the exclude domains are ignored
if include_d:
def entity_filter_4a(entity_id: str) -> bool:
"""Return filter function for case 4a."""
domain = split_entity_id(entity_id)[0]
if domain in include_d:
return entity_id not in exclude_e
return entity_id in include_e
return entity_filter_4a
# Case 4b - exclude domain specified
# - if domain is excluded, pass if entity is included
# - if domain is not excluded, pass if entity not excluded
if exclude_d:
def entity_filter_4b(entity_id: str) -> bool:
"""Return filter function for case 4b."""
domain = split_entity_id(entity_id)[0]
if domain in exclude_d:
return entity_id in include_e
return entity_id not in exclude_e
return entity_filter_4b
# Case 4c - neither include or exclude domain specified
# - Only pass if entity is included. Ignore entity excludes.
def entity_filter_4c(entity_id: str) -> bool:
"""Return filter function for case 4c."""
return entity_id in include_e
return entity_filter_4c