如何使用特征聚合akka-http路由？

Question

我试图在运行时使用特征聚合路由,到目前为止我有

object SMController {
  def aggregateRoutes(actorSystem: ActorSystem): List[Route] = {
    val runtimeMirror = universe.runtimeMirror(getClass.getClassLoader)
    val reflections = new Reflections("com.example.api")
    val subclasses = reflections.getSubTypesOf(classOf[Routable])
    val routesList = new ListBuffer[Route]()

    for (i <- subclasses) {
      val module = runtimeMirror.staticModule(i.getName)
      val obj = runtimeMirror.reflectModule(module)
      val someTrait: Routable = obj.instance.asInstanceOf[Routable]
      routesList += someTrait.getAllRoutes(actorSystem)
    }

    routesList.toList
  }
}

显然上面的代码不起作用,因为无法将项目列表传递给Http().bindAndHandle.

所以我的问题是,我怎么能解析List[Routes]到一个Http().bindAndHandle接受或者我怎么能动态地从子类加载路线Routable？

Answer 1

foldLeft: 我设法折叠路线并合并所有路线,如下所示

val routes = SMController.aggregateRoutes(system)
val bindingFuture = Http().bindAndHandle(
        routes.tail.foldLeft(routes.head)((a, b) => a ~ b), "localhost", 8080)

reduceLeft:

routes.reduceLeft(_ ~ _)