On May 20, 2010, at 7:28 AM, Pekka Mattila wrote:
> Thank you Viktor!
>
> Paul, I think Viktor handles this issue. Do you still want a simple
> Maven project or should we wait Viktor's work?
>
Let's wait.
Viktor, if you need any help/advice just shout!
Paul.
> Thank you for your help! :)
>
> Cheers,
> Pekka :)
>
> On Wed, May 19, 2010 at 8:25 PM, Viktor Klang
> <viktor.klang_at_gmail.com> wrote:
> Hi guys,
>
> We're currently investigating another option in integrating with
> Jersey and other web-frameworks in general so don't waste any time
> on this issue.
>
> Pekka: Hopefully we'll be able to offer you a solution for this, and
> it looks right now like we'll separate the REST-bean from the Actor,
> it's pretty much impossible to do anything else after the
> introduction of ActorRef,
>
> I hope this will help,
>
>
> On Wed, May 19, 2010 at 6:47 PM, Paul Sandoz <Paul.Sandoz_at_sun.com>
> wrote:
> Hi Pekka,
>
> The URL got truncated can you resend.
>
> I dunno what constraints Akka imposes when resource class (something
> annotated with @Path) implements an Actor.
>
> The error indicates that the HttpServletRequest is being accessed
> out of the scope of a request. Looks like the case class
> Hello.toString occurs for logging and that calls the
> HttpServletRequest.toString on the HttpServletRequest field value of
> the case class.
>
> This can happen if thread boundaries are crossed. But i would have
> expected in this case that the HttpServletRequest instance passed to
> the hello function would not be a proxy.
>
> If you can package up a simple maven project i can investigate
> further.
>
> Paul.
>
> On May 17, 2010, at 12:34 PM, Pekka Mattila wrote:
>
> Hi,
>
> Here is a forwarded message about a problem of @Context and thread
> local.
>
> Cheers,
> Pekka :)
>
>
>
> ---------- Forwarded message ----------
> From: Viktor Klang <viktor.kl..._at_gmail.com>
> Date: May 17, 12:55 pm
> Subject: REST API: @Context raises java.lang.IllegalStateException
> exception
> To: Akka User List
>
>
> Hi Pekka!
>
> The relevant Jersey integration is provided by:
>
> http://github.com/jboner/akka/blob/master/akka-http/src/main/scala/Ac...http://github.com/jboner/akka/blob/master/akka-http/src/main/scala/Ac...http://github.com/jboner/akka/blob/master/akka-http/src/main/scala/Ak
> ...
>
>
> Perhaps you could crosspost this to the jersey user ML to see if
> anyone
> knows the root of this?
>
> Cheers,
>
> On Mon, May 17, 2010 at 11:48 AM, Pekka Mattila
> <pe..._at_starduckstudios.com>wrote:
>
>
>
>
>
>
> Hi all,
>
> I am trying to use @Context annotation with Akka REST, but it raises
> java.lang.IllegalStateException.
>
> Here is an example code:
>
> @Path("/hello")
> class TestService extends Actor {
>
> private case class Hello(request: HttpServletRequest)
>
> @GET
> @Produces(Array("text/plain"))
> def hello(@Context request: HttpServletRequest): Any = {
> (this !! Hello(request)).getOrElse("Couldn't say hello!")
> }
>
> def receive = {
> case Hello(request) => reply(helloImpl(request))
> }
>
> private def helloImpl(request: HttpServletRequest): Response = {
> try {
> println("request: "+request)
> } catch {
> case e: Throwable =>
> throw new RuntimeException(e)
> }
>
> return Response.status(Response.Status.OK).build
> }
>
> }
>
> I get the following stack trace:
>
> java.lang.IllegalStateException
> at
>
> com
> .sun
> .jersey.server.impl.container.servlet.ThreadLocalInvoker.invoke(Thre
> adLocalInvoker.java:
>
> 90)
> at $Proxy16.toString(Unknown Source)
> at java.lang.String.valueOf(String.java:2826)
> at scala.collection.Iterator$class.addString(Iterator.scala:1192)
> at scala.Product$$anon$1.addString(Product.scala:37)
> at scala.collection.Iterator$class.mkString(Iterator.scala:1159)
> at scala.Product$$anon$1.mkString(Product.scala:37)
> at scala.runtime.ScalaRunTime$._toString(ScalaRunTime.scala:146)
> at rest.TestService$Hello.toString(TestService.scala:16)
> at java.util.Formatter$FormatSpecifier.printString(Formatter.java:
> 2794)
> at java.util.Formatter$FormatSpecifier.print(Formatter.java:2677)
> at java.util.Formatter.format(Formatter.java:2433)
> at java.util.Formatter.format(Formatter.java:2367)
> at java.lang.String.format(String.java:2769)
> at net.lag.logging.Formatter.format(Formatter.scala:161)
> at net.lag.logging.FileHandler.liftedTree1$1(FileHandler.scala:
> 123)
> at net.lag.logging.FileHandler.publish(FileHandler.scala:119)
> at java.util.logging.Logger.log(Logger.java:458)
> at net.lag.logging.Logger.log(Logger.scala:108)
> at net.lag.logging.Logger.error(Logger.scala:118)
> at se.scalablesolutions.akka.actor.Actor
> $class.transactionalDispatch(Actor.scala:971)
> at se.scalablesolutions.akka.actor.Actor
> $class.liftedTree1$1(Actor.scala:901)
> at se.scalablesolutions.akka.actor.Actor$class.invoke(Actor.scala:
> 900)
> at rest.TestService.invoke(TestService.scala:14)
> at
> se
> .scalablesolutions
> .akka.dispatch.MessageInvocation.invoke(Reactor.scala:
> 23)
> at
> se.scalablesolutions.akka.dispatch.ExecutorBasedEventDrivenDispatcher$
> $anon$1.run(ExecutorBasedEventDrivenDispatcher.scala:75)
> at java.util.concurrent.ThreadPoolExecutor
> $Worker.runTask(ThreadPoolExecutor.java:886)
> at java.util.concurrent.ThreadPoolExecutor
> $Worker.run(ThreadPoolExecutor.java:908)
> at java.lang.Thread.run(Thread.java:637)
> at se.scalablesolutions.akka.dispatch.ThreadPoolBuilder
> $MonitorableThread.run(ThreadPoolBuilder.scala:244)
>
> Here is the Jersey code that throws the exception:
>
> public Object invoke(Object proxy, Method method, Object[] args)
> throws Throwable {
> if (threadLocalInstance.get() == null)
> throw new IllegalStateException(); <====== EXCEPTION
>
> try {
> return method.invoke(threadLocalInstance.get(), args);
> } catch (IllegalAccessException ex) {
> throw new IllegalStateException(ex);
> } catch (InvocationTargetException ex) {
> throw ex.getTargetException();
> }
> }
>
> Related Jersey code can be downloaded from:
>
> http://download.java.net/maven/2/com/sun/jersey/jersey-server/1.2/
> jer...
> .
>
> When TestService isn't Actor, everything works:
>
> @Path("/hello")
> class TestService {
>
> @GET
> @Produces(Array("text/plain"))
> def hello(@Context request: HttpServletRequest): Any = {
> helloImpl(request)
> }
>
> private def helloImpl(request: HttpServletRequest): Response = {
> try {
> println("request: "+request)
> } catch {
> case e: Throwable =>
> throw new RuntimeException(e)
> }
>
> return Response.status(Response.Status.OK).build
> }
>
> }
>
> So, any ideas how we can get this working with Akka?
>
> Cheers,
> Pekka
>
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> --
> Viktor Klang
> | "A complex system that works is invariably
> | found to have evolved from a simple system
> | that worked." - John Gall
>
> Akka - the Actor Kernel: Akkasource.org
> Twttr: twitter.com/viktorklang
>
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>
>
>
>
> --
> Viktor Klang
> | "A complex system that works is invariably
> | found to have evolved from a simple system
> | that worked." - John Gall
>
> Akka - the Actor Kernel: Akkasource.org
> Twttr: twitter.com/viktorklang
>
>
>
> --
> Pekka Mattila
> Co-founder
> +358442818601
>
> Starduck Studios
> Sumeliuksenkatu 18 B, 1st. floor
> 33100 Tampere
> Finland