ondosense-eventhandling 0.1.2

Basic Event Handling System

ondosense-eventhandling

ondosense-eventhandling provides a basic implementation for event handling.

Example Usage

from ondosense.eventhandling import Event, EventDispatcher, EventSubscriber
from typing import List, Tuple

class SendGreetingsEvent(Event):
    name = 'greeting'
    _message: str = 'Hello World!'

    @property
    def message(self) -> str:
        return self._message

class GreetingSubscriber(EventSubscriber):

    def get_subscribed_events(self) -> dict[str, List[Tuple[str, int]]]:
        return {
            SendGreetingsEvent.name: [
                ('send_simple_greetings', 10),
                ('send_important_greetings', 20),
            ],
        }

    def send_simple_greetings(self, event: SendGreetingsEvent) -> None:
        print(event.message)

    def send_important_greetings(self, event: SendGreetingsEvent) -> None:
        important_message = f"!!! {event.message} !!!"
        important_message_length = len(important_message)
        print("!" * important_message_length)
        print(important_message)
        print("!" * important_message_length)

(
    EventDispatcher()
    .add_subscriber(GreetingSubscriber())
    .dispatch(SendGreetingsEvent())
)