A Brief Introduction to Rhino Providers

Providers are used to feed information into test entities at injection points. There are standard providers provided by the framework, like UUIDProvider and UserProvider, which can be used to feed user information into the tests.

The provider instances are injected to class fields annotated with @Provider annotation:

@Simulation(name = "Server-Status Simulation")
public class PerformanceTestingExample {

  private OAuthUserProvider userProvider;

  @Provider(factory = UUIDProvider.class)
  private UUIDProvider uuidProvider;

In addition to standard providers, the developers may wish to add their custom providers. In this case, the @Provider annotation expects a provider class:

@Simulation(name = "Reactive Sleep Test")
@Runner(clazz = ReactiveHttpSimulationRunner.class)
@RampUp(startRps = 1, targetRps = 10)
public class ReactiveSleepTestSimulation {

  @Provider(factory = UUIDProvider.class)
  private UUIDProvider provider;


and the provider itself:

public class UUIDProvider implements Provider<String> {

  public String take() {
    return UUID.randomUUID().toString();

In the com.adobe.rhino.sdk.providers package, you will find some useful feeder implementations e.g UUIDProvider, that you can use in your projects.