ScalatraServlet with AkkaSupport with GZipSupport

问题

I'm trying to use Scalatra with AkkaSupport and the newly introduced (2.2.0 RC2) GZipSupport. It fails and I'm trying to figure out if I'm doing something wrong, before I file a bug report. The code is the default Scalatra/Akka example, including the GZipSupport trait:

package com.myapp

import _root_.akka.dispatch._
import _root_.akka.actor._

import org.scalatra._
import org.scalatra.akka.AkkaSupport

class myappServlet extends ScalatraServlet with AkkaSupport with GZipSupport {
  implicit val system = ActorSystem()

  get("/"){
    Future {
      <html><body>Hello Akka</body></html>
    }
  }
}

I'm getting the following stack trace:

[ERROR] [01/08/2013 17:41:42.274] [default-akka.actor.default-dispatcher-2] [akka.dispatch.Dispatcher] STREAM
    java.lang.IllegalStateException: STREAM
at org.eclipse.jetty.server.Response.getWriter(Response.java:699)
at org.scalatra.servlet.RichResponse.writer(RichResponse.scala:80)
at org.scalatra.ScalatraBase$$anonfun$renderPipeline$1.apply(ScalatraBase.scala:301)
at scala.PartialFunction$$anon$3.apply(PartialFunction.scala:97)
at scala.PartialFunction$$anon$3.apply(PartialFunction.scala:96)
at org.scalatra.ScalatraBase$class.loop$1(ScalatraBase.scala:275)
at org.scalatra.ScalatraBase$class.renderResponseBody(ScalatraBase.scala:277)
at org.scalatra.ScalatraServlet.renderResponseBody(ScalatraServlet.scala:50)
at org.scalatra.ScalatraBase$class.renderResponse(ScalatraBase.scala:245)
at com.myapp.myappServlet.org$scalatra$akka$AkkaSupport$$super$renderResponse(triptaoServlet.scala:9)
at org.scalatra.akka.AkkaSupport$$anonfun$renderResponse$1$$anonfun$apply$1.apply(AkkaSupport.scala:61)
at scala.util.DynamicVariable.withValue(DynamicVariable.scala:57)
at org.scalatra.DynamicScope$class.withResponse(DynamicScope.scala:50)
at org.scalatra.ScalatraServlet.withResponse(ScalatraServlet.scala:50)
at org.scalatra.servlet.AsyncSupport$$anonfun$withinAsyncContext$1.apply(AsyncSupport.scala:25)
at scala.util.DynamicVariable.withValue(DynamicVariable.scala:57)
at org.scalatra.DynamicScope$class.withRequest(DynamicScope.scala:41)
at org.scalatra.ScalatraServlet.withRequest(ScalatraServlet.scala:50)
at org.scalatra.servlet.AsyncSupport$class.withinAsyncContext(AsyncSupport.scala:24)
at com.myapp.myappServlet.withinAsyncContext(triptaoServlet.scala:9)
at org.scalatra.akka.AkkaSupport$$anonfun$renderResponse$1.apply(AkkaSupport.scala:58)
at org.scalatra.akka.AkkaSupport$$anonfun$renderResponse$1.apply(AkkaSupport.scala:56)
at akka.dispatch.Future$$anonfun$onSuccess$1.apply(Future.scala:484)
at akka.dispatch.Future$$anonfun$onSuccess$1.apply(Future.scala:483)
at akka.dispatch.DefaultPromise.akka$dispatch$DefaultPromise$$notifyCompleted(Future.scala:943)
at akka.dispatch.DefaultPromise$$anonfun$onComplete$1.apply$mcV$sp(Future.scala:937)
at akka.dispatch.Future$$anon$4$$anonfun$run$1.apply$mcV$sp(Future.scala:386)
at akka.dispatch.Future$$anon$4$$anonfun$run$1.apply(Future.scala:378)
at akka.dispatch.Future$$anon$4$$anonfun$run$1.apply(Future.scala:378)
at scala.util.DynamicVariable.withValue(DynamicVariable.scala:57)
at akka.dispatch.Future$$anon$4.run(Future.scala:378)
at akka.dispatch.TaskInvocation.run(AbstractDispatcher.scala:94)
at akka.jsr166y.ForkJoinTask$AdaptedRunnableAction.exec(ForkJoinTask.java:1381)
at akka.jsr166y.ForkJoinTask.doExec(ForkJoinTask.java:259)
at akka.jsr166y.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:975)
at akka.jsr166y.ForkJoinPool.runWorker(ForkJoinPool.java:1479)
at akka.jsr166y.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:104)

Is this some bug or am I missing something? Thanks in advance!

回答1:

This was a bug that was acknowledged by core Scalatra developers, it was announced as fixed in v2.2.1.

来源：https://stackoverflow.com/questions/14218851/scalatraservlet-with-akkasupport-with-gzipsupport

标签

gzip

akka

scalatra