Event handler

Defines an abstract base class for all event handlers used throughout the Gen AI applications.

Authors

Henry Wicaksono (henry.wicaksono@gdplabs.id)

References

NONE

BaseEventHandler(name=None, color_map=None)

Bases: ABC

An abstract base class for all event handlers used throughout the Gen AI applications.

Attributes:

Name	Type	Description
name	str	The name assigned to the event handler.
color_map	dict[str, str]	The dictionary that maps certain event types to their corresponding colors in Rich format.

Initializes a new instance of the BaseEventHandler class.

Parameters:

Name	Type	Description	Default
name	str | None	The name assigned to the event handler. Defaults to None, in which case the class name will be used.	None
color_map	dict[str, str]	The dictionary that maps certain event types to their corresponding colors in Rich format. Defaults to None, in which case the default color map will be used.	None

close() async

Closes the event handler.

By default, this method does nothing. Subclasses can override this method to perform cleanup tasks (e.g., closing connections or releasing resources) when needed. Event handlers that do not require cleanup can inherit this default behavior without any changes.

Returns:

Type	Description
None	None

emit(event) abstractmethod async

Emits the given event.

This abstract method must be implemented by subclasses to define how an event is emitted.

Parameters:

Name	Type	Description	Default
event	Event	The event to be emitted.	required

Raises:

Type	Description
NotImplementedError	If the method is not implemented in a subclass.