pydistsim.observers.Observer

class Observer[source]

Bases: object

Base class for observers.

Subclasses must implement the on_{event_name} methods for the events they want to listen to.

If an observer is notified of an event it does not listen to, the notification is discarded and a debug message is logged.

To define the events an observer listens to, set the events attribute to a list of event names. The definitive list of allowed events is the union of the events attribute of every class in the inheritance chain. For more information, refer to the __get_allowed_events__() method.

Example of concrete implementations are: - MetricCollector class in pydistsim.metrics - QThreadObserver class in pydistsim.gui.simulationgui

Methods

__init__

notify

on_added

Called when the observer is added to an observable object.

Attributes

events

on_added(observable: ObserverManagerMixin) → None[source]

Called when the observer is added to an observable object.

Parameters:

observable (ObserverManagerMixin) – The observable object to which the observer is added.

Returns:

None