wow-core/me.ahoo.wow.metrics/MetricDomainEventHandler

MetricDomainEventHandler

class MetricDomainEventHandler(val delegate: DomainEventHandler) : DomainEventHandler, Decorator<DomainEventHandler>

Metric decorator for domain event handlers that collects metrics on domain event processing operations. This class wraps a DomainEventHandler and adds metrics collection with tags for aggregate name, event name, and processor name to track event handling performance and success rates.

Constructors

constructor(delegate: DomainEventHandler)

Properties

delegate

open override val delegate: DomainEventHandler

the underlying domain event handler implementation

Functions

handle

open override fun handle(exchange: DomainEventExchange<*>): Mono<Void>

Handles a domain event exchange and collects metrics on the operation. Metrics collected include timing, success/failure rates, and tags for aggregate, event, and processor identification.

metrizable

fun DomainEventHandler.metrizable(): DomainEventHandler

Wraps a DomainEventHandler with metrics collection capabilities. Returns a MetricDomainEventHandler that collects metrics on domain event handling operations.