import static com.google.common.collect.Iterables.transform;

/**
 * Service loader that applies JSR-330 style dependency injection.
 */
public class DependencyInjectingServiceLoader {

    private final ServiceRegistry serviceRegistry;

    public DependencyInjectingServiceLoader(ServiceRegistry serviceRegistry) {
        this.serviceRegistry = serviceRegistry;
    }

    /**

        1 * serviceRegistry.find(ServiceDependency) >> dependency
        1 * serviceRegistry.get(InstantiatorFactory) >> TestUtil.instantiatorFactory()

        def subject = new DependencyInjectingServiceLoader(serviceRegistry)

        when:
        def service = subject.load(ServiceType, classLoader).iterator().next()

        then:
        dependency == service.dependency
    }