How to chain action in Play! Framework

chainedaction.scala

import play.api._
import play.api.mvc._

sealed trait ChainedAction[A] extends Action[A]
object ChainedAction {

  def apply[A](bodyParser: BodyParser[A])(block: Request[A] => Action[A]): ChainedAction[A] = 
    new ChainedAction[A] {
      def parser = bodyParser
      def apply(request: Request[A]) = {
        block(request)(request)
      }
  }

  def apply[A](block: Request[AnyContent] => Action[AnyContent]): ChainedAction[AnyContent] = {
    apply(BodyParsers.parse.anyContent)(block)
  }

  def apply (block: => Action[AnyContent]): ChainedAction[AnyContent] = {
    apply(BodyParsers.parse.anyContent)(_ => block)
  }

}