Implement Routes#run and Route#run (zio#2552)

* implement routes#run and route#run

* fix version specific issue

zio-http/src/main/scala/zio/http/Route.scala

@@ -216,6 +216,13 @@ sealed trait Route[-Env, +Err] { self =>
  */
  def routePattern: RoutePattern[_]
 
+ /**
+ * Applies the route to the specified request. The route must be defined for
+ * the request, or else this method will fail fatally.
+ */
+ final def run(request: Request)(implicit trace: Trace): ZIO[Env, Either[Err, Response], Response] =
+ Routes(self).run(request)
+
  /**
  * Returns a route that automatically translates all failures into responses,
  * using best-effort heuristics to determine the appropriate HTTP status code,

zio-http/src/main/scala/zio/http/Routes.scala

@@ -127,6 +127,40 @@ final class Routes[-Env, +Err] private (val routes: Chunk[zio.http.Route[Env, Er
  def provideEnvironment(env: ZEnvironment[Env]): Routes[Any, Err] =
  new Routes(routes.map(_.provideEnvironment(env)))
 
+ def run(request: Request)(implicit trace: Trace): ZIO[Env, Either[Err, Response], Response] = {
+
+ class RouteFailure[+Err](val err: Cause[Err]) extends Throwable(null, null, true, false) {
+ override def getMessage: String = err.unified.headOption.fold("<unknown>")(_.message)
+
+ override def getStackTrace(): Array[StackTraceElement] =
+ err.unified.headOption.fold[Chunk[StackTraceElement]](Chunk.empty)(_.trace).toArray
+
+ override def getCause(): Throwable =
+ err.find { case Cause.Die(throwable, _) => throwable }
+ .orElse(err.find { case Cause.Fail(value: Throwable, _) => value })
+ .orNull
+
+ def fillSuppressed()(implicit unsafe: Unsafe): Unit =
+ if (getSuppressed().length == 0) {
+ err.unified.iterator.drop(1).foreach(unified => addSuppressed(unified.toThrowable))
+ }
+
+ override def toString =
+ err.prettyPrint
+ }
+ var routeFailure: RouteFailure[Err] = null
+
+ handleErrorCauseZIO { cause =>
+ routeFailure = new RouteFailure(cause)
+ ZIO.refailCause(Cause.die(routeFailure))
+ }
+ .apply(request)
+ .mapErrorCause {
+ case Cause.Die(value: RouteFailure[_], _) if value == routeFailure => routeFailure.err.map(Left(_))
+ case cause => cause.map(Right(_))
+ }
+ }
+
  /**
  * Returns new routes that automatically translate all failures into
  * responses, using best-effort heuristics to determine the appropriate HTTP