getHandlerFor.scala

  def getHandlerFor(request: RequestHeader): Either[Result, (Handler, Application)] = {

    import scala.util.control.Exception

    def sendHandler: Either[Throwable, (Handler, Application)] = {
      try {
        applicationProvider.get.right.map { application =>
          val maybeAction = application.global.onRouteRequest(request)
          (maybeAction.getOrElse(Action(BodyParsers.parse.empty)(_ => application.global.onHandlerNotFound(request))), application)
        }
      } catch {
        case e: ThreadDeath => throw e
        case e: VirtualMachineError => throw e
        case e: Throwable => Left(e)
      }
    }

    def logExceptionAndGetResult(e: Throwable) = {

      Logger.error(
        """
        |
        |! %sInternal server error, for (%s) [%s] ->
        |""".stripMargin.format(e match {
          case p: PlayException => "@" + p.id + " - "
          case _ => ""
        }, request.method, request.uri),
        e)

      DefaultGlobal.onError(request, e)

    }

    Exception
      .allCatch[Option[Result]]
      .either(applicationProvider.handleWebCommand(request))
      .left.map(logExceptionAndGetResult)
      .right.flatMap(maybeResult => maybeResult.toLeft(())).right.flatMap { _ =>
        sendHandler.left.map(logExceptionAndGetResult)
      }

  }