event_routing_backends.processors.transformer_utils package#

Subpackages#

Exceptions related to Caliper transformation

exception event_routing_backends.processors.transformer_utils.exceptions.EventNotDispatched#

Raise this exception when an event is not dispatched

Registry to keep track of event transformers

class event_routing_backends.processors.transformer_utils.registry.TransformerRegistry#

Registry to keep track of event transformers.

Every Registry that inherits this registry MUST has its own mapping class attribute to avoid conflicts.

classmethod get_transformer(event)#

Return an initialized transformer instance for the provided event.

Parameters: event (dict) – event to be transformed
Returns: Transformer object
Raises: NoTransformerImplemented – if matching transformer is not found.

classmethod register(event_key)#

Decorator to register a transformer for an event.

classmethod validate_mapping_exists()#

Validate that every registry inheriting this one has its own mapping attribute.