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49 lines
1.3 KiB
Python
49 lines
1.3 KiB
Python
"""Facilitates communication between processes."""
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import logging
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from enum import Enum
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from .zmq_proxy import Publisher, Subscriber
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logger = logging.getLogger(__name__)
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class EventMetadataTypeEnum(str, Enum):
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all = ""
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manual_event_create = "manual_event_create"
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manual_event_end = "manual_event_end"
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regenerate_description = "regenerate_description"
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sub_label = "sub_label"
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recognized_license_plate = "recognized_license_plate"
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class EventMetadataPublisher(Publisher):
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"""Simplifies receiving event metadata."""
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topic_base = "event_metadata/"
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def __init__(self) -> None:
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super().__init__()
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def publish(self, topic: EventMetadataTypeEnum, payload: any) -> None:
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super().publish(payload, topic.value)
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class EventMetadataSubscriber(Subscriber):
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"""Simplifies receiving event metadata."""
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topic_base = "event_metadata/"
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def __init__(self, topic: EventMetadataTypeEnum) -> None:
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super().__init__(topic.value)
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def check_for_update(self, timeout: float = 1) -> tuple | None:
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return super().check_for_update(timeout)
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def _return_object(self, topic: str, payload: tuple) -> tuple:
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if payload is None:
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return (None, None)
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topic = EventMetadataTypeEnum[topic[len(self.topic_base) :]]
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return (topic, payload)
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