Я новичок в Akka, я использую версию Akka 2.3.3 для создания актеров. Я собираюсь создать удаленного актера и попытаться получить доступ с помощью клиента. Всякий раз, когда я собираюсь запустить тестовый пример, будет выдано следующее исключение:
[INFO] [04/27/2016 07:51:23.727] [Localsystem-akka.actor.default-dispatcher-3] [akka://Localsystem/deadLetters] Message [com.harmeetsingh13.chapter2.messages.SetRequest] from Actor[akka://Localsystem/temp/$a] to Actor[akka://Localsystem/deadLetters] was not delivered. [1] dead letters encountered. This logging can be turned off or adjusted with configuration settings 'akka.log-dead-letters' and 'akka.log-dead-letters-during-shutdown'.
[INFO] [04/27/2016 07:51:23.745] [Localsystem-akka.actor.default-dispatcher-3] [akka://Localsystem/deadLetters] Message [com.harmeetsingh13.chapter2.messages.GetRequest] from Actor[akka://Localsystem/temp/$b] to Actor[akka://Localsystem/deadLetters] was not delivered. [2] dead letters encountered. This logging can be turned off or adjusted with configuration settings 'akka.log-dead-letters' and 'akka.log-dead-letters-during-shutdown'.
Futures timed out after [10 seconds]
java.util.concurrent.TimeoutException: Futures timed out after [10 seconds]
at scala.concurrent.impl.Promise$DefaultPromise.ready(Promise.scala:219)
at scala.concurrent.impl.Promise$DefaultPromise.result(Promise.scala:223)
at scala.concurrent.Await$$anonfun$result$1.apply(package.scala:190)
at scala.concurrent.BlockContext$DefaultBlockContext$.blockOn(BlockContext.scala:53)
at scala.concurrent.Await$.result(package.scala:190)
at com.harmeetsingh13.chapter2.SClientIntegrationSpec$$anonfun$1$$anonfun$apply$mcV$sp$1.apply$mcV$sp(SClientIntegrationSpec.scala:18)
at com.harmeetsingh13.chapter2.SClientIntegrationSpec$$anonfun$1$$anonfun$apply$mcV$sp$1.apply(SClientIntegrationSpec.scala:15)
at com.harmeetsingh13.chapter2.SClientIntegrationSpec$$anonfun$1$$anonfun$apply$mcV$sp$1.apply(SClientIntegrationSpec.scala:15)
at org.scalatest.Transformer$$anonfun$apply$1.apply$mcV$sp(Transformer.scala:22)
at org.scalatest.OutcomeOf$class.outcomeOf(OutcomeOf.scala:85)
at org.scalatest.OutcomeOf$.outcomeOf(OutcomeOf.scala:104)
at org.scalatest.Transformer.apply(Transformer.scala:22)
at org.scalatest.Transformer.apply(Transformer.scala:20)
at org.scalatest.FunSpecLike$$anon$1.apply(FunSpecLike.scala:422)
at org.scalatest.Suite$class.withFixture(Suite.scala:1122)
at com.harmeetsingh13.chapter2.SClientIntegrationSpec.withFixture(SClientIntegrationSpec.scala:11)
at org.scalatest.FunSpecLike$class.invokeWithFixture$1(FunSpecLike.scala:419)
at org.scalatest.FunSpecLike$$anonfun$runTest$1.apply(FunSpecLike.scala:431)
at org.scalatest.FunSpecLike$$anonfun$runTest$1.apply(FunSpecLike.scala:431)
at org.scalatest.SuperEngine.runTestImpl(Engine.scala:306)
at org.scalatest.FunSpecLike$class.runTest(FunSpecLike.scala:431)
at com.harmeetsingh13.chapter2.SClientIntegrationSpec.runTest(SClientIntegrationSpec.scala:11)
at org.scalatest.FunSpecLike$$anonfun$runTests$1.apply(FunSpecLike.scala:464)
at org.scalatest.FunSpecLike$$anonfun$runTests$1.apply(FunSpecLike.scala:464)
at org.scalatest.SuperEngine$$anonfun$traverseSubNodes$1$1.apply(Engine.scala:413)
at org.scalatest.SuperEngine$$anonfun$traverseSubNodes$1$1.apply(Engine.scala:401)
............
Код моего сервера, как показано ниже: Main.scala
object Main extends App{
private val configFile = getClass.getClassLoader.getResource("application.conf").getFile;
private val config = ConfigFactory.parseFile(new File(configFile ))
val system = ActorSystem("SimpleClientServer", config)
system.actorOf(Props[AkkadmeyDB], name = "akkademy-db")
}
application.conf:
akka{
actor{
provider = "akka.remote.RemoteActorRefProvider"
}
remote{
enabled-transports = ["akka.remote.netty.tcp"]
netty.tcp {
hostname = "127.0.0.1"
port = 2552
}
log-sent-messages = on
log-received-messages = on
}
}
AkkadmeyDB.scala Класс актера:
class AkkadmeyDB extends Actor{
val map = new HashMap[String, Object]
val log = Logging(context.system, this)
override def receive: Receive = {
case SetRequest(key, value) =>
log.info("received SetRequest - key: {} value: {}", key, value)
map.put(key, value)
sender() ! Status.Success
case GetRequest(key) =>
log.info("received GetRequest - key: {}", key)
val response = map.get(key)
response match{
case Some(x) => sender() ! x
case None => Status.Failure(new KeyNotFoundException(key))
}
case o => Status.Failure(new ClassNotFoundException())
}
}
Код клиента, как показано ниже: SClient.scala
class SClient(remoteIp: String) {
private implicit val timeout = Timeout(10 seconds)
private implicit val system = ActorSystem("Localsystem")
private val remoteAddress = s"akka.tcp://SimpleClientServer@$remoteIp/user/akkademy-db";
private val remoteDb = system.actorSelection(remoteAddress)
def set(key: String, value: Object) = {
remoteDb ? SetRequest(key, value)
}
def get(key: String) = {
remoteDb ? GetRequest(key)
}
}
SClientIntegrationSpec.scala Тестовый пример:
class SClientIntegrationSpec extends FunSpecLike with Matchers {
val client = new SClient("127.0.0.1:2552")
describe("akkadment-db-client"){
it("should set a value"){
client.set("jame", new Integer(1313))
val futureResult = client.get("james")
val result = Await.result(futureResult, 10 seconds)
result should equal (1313)
}
}
}
Когда я вижу журналы своего удаленного приложения, похоже, что полученный запрос не попадает на сервер. в чем проблема в моем примере кода?
