mapRouteResultPF

Description

Partial Function version of mapRouteResult.

Changes the message the inner route sends to the responder.

The mapRouteResult directive is used as a building block for Custom Directives to transform the RouteResult coming back from the inner route. It’s similar to the mapRouteResult directive but allows to specify a partial function that doesn’t have to handle all potential RouteResult instances.

See Result Transformation Directives for similar directives.

Example

final Route route = mapRouteResultPF(
  new PFBuilder<RouteResult, RouteResult>()
    .match(Rejected.class, rejected -> {
      final Iterable<Rejection> rejections =
        Collections.singletonList(Rejections.authorizationFailed());
      return RouteResults.rejected(rejections);
    }).build(), () -> reject(new MyCustomRejection()));

// tests:
runRouteUnSealed(route, HttpRequest.GET("/"))
  .assertRejections(Rejections.authorizationFailed());