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Я пытаюсь использовать Play Framework (Scala) в качестве клиента Akka Cluster для отправки сообщений в другой Akka Cluster, который запускает мои приложения.Не удалось отправить сообщение Buffer Buffer от клиента Akka Cluster
Вот что я сделал:
Я определил сообщения в другом модуле с использованием протокола буфера и совместно проекта с запущенными службами и Play приложение (с помощью Git подмодулей)
syntax = "proto2"; option java_package = "com.myproject.api.common.messages"; option java_outer_classname = "IsValidClientMessage"; message IsValidClient { required int32 clientId = 1; required string clientSecret = 2; }Started Услуги в порту 2560
akka { remote.netty.tcp.port=${?AKKA_REMOTE_PORT} remote.netty.tcp.hostname=127.0.0.1 cluster { seed-nodes = [ "akka.tcp://[email protected]:2560" ] auto-down-unreachable-after = 10s } extensions = ["akka.cluster.client.ClusterClientReceptionist"] loglevel = DEBUG actor { serializer { proto = "akka.remote.serialization.ProtobufSerializer" } serialization-bindings { "com.myproject.api.common.messages.IsValidClientMessage$IsValidClient" = proto } serialize-messages = on provider = "akka.cluster.ClusterActorRefProvider" debug { receive = on } } }И побежал Play приложения, используя ниже Akka конфигурации:
akka { remote.netty.tcp.port=2552 remote.netty.tcp.hostname=127.0.0.1 remote.enabled-transports = ["akka.remote.netty.tcp"] cluster { seed-nodes = [ "akka.tcp://[email protected]:2552" ] auto-down-unreachable-after = 10s } extensions = ["akka.cluster.client.ClusterClientReceptionist"] loglevel = DEBUG actor { serializer { proto = "akka.remote.serialization.ProtobufSerializer" } serialization-bindings { "com.myproject.api.common.messages.IsValidClientMessage$IsValidClient" = proto } serialize-messages = on provider = "akka.cluster.ClusterActorRefProvider" debug { receive = on } } }
Это код, который я пытался отправить сообщение ApiServiceSystem:
package com.myproject.api.akka.actors.socket
import ...
class ClientActor extends Actor with ActorLogging {
ClusterClientReceptionist(context.system).registerService(self)
val outActors: ArrayBuffer[ActorRef] = ArrayBuffer.empty
val apiServiceClient = context.system.actorOf(ClusterClient.props(
ClusterClientSettings(context.system).withInitialContacts(Set(ActorPath.fromString("akka.tcp://[email protected]:2560/system/receptionist")))
))
override def receive = {
case WatchOutActor(a) =>
context.watch(a)
outActors += a
case Terminated(a) =>
context.unwatch(a)
outActors.remove(outActors.indexOf(a))
case other =>
implicit val to: Timeout = 2 seconds
val isValidClient = IsValidClient.newBuilder() // Protocol Buffer Message
isValidClient.setClientId(1000)
isValidClient.setClientSecret("notsosecret")
(apiServiceClient ? ClusterClient.Send("/user/clientActor", isValidClient.build(), false)).mapTo[Future[Either[ServiceError, Boolean]]] map { f =>
f map {
case Left(e) =>
outActors foreach { a => a ! e.msg }
case Right(bool) =>
outActors foreach { a => a ! bool.toString }
}
} recover {
case e: Exception => println(s"-=> Exception ${e.getMessage}")
}
}
}
object ClientActor {
case class WatchOutActor(actorRef: ActorRef)
}
Как я вижу снизу бревна, что моя УПА подключенный к кластеру работает служба:
[DEBUG] [08/11/2016 10:11:05.936] [ApiServiceActorSystem-akka.remote.default-remote-dispatcher-24] [akka.remote.Remoting] Associated [akka.tcp://[email protected]:2560] <- [akka.tcp://[email protected]:2552]
[DEBUG] [08/11/2016 10:11:05.998] [ApiServiceActorSystem-akka.remote.default-remote-dispatcher-24] [akka.serialization.Serialization(akka://ApiServiceActorSystem)] Using serializer[akka.cluster.client.protobuf.ClusterClientMessageSerializer] for message [akka.cluster.client.ClusterReceptionist$Internal$GetContacts$]
[DEBUG] [08/11/2016 10:11:06.000] [ApiServiceActorSystem-akka.actor.default-dispatcher-4] [akka.tcp://[email protected]:2560/system/receptionist] Client [akka.tcp://[email protected]:2552/user/$a] gets contactPoints [akka.tcp://[email protected]:2560/system/receptionist] (all nodes)
[DEBUG] [08/11/2016 10:11:06.002] [ApiServiceActorSystem-akka.actor.default-dispatcher-4] [akka.tcp://[email protected]:2560/system/receptionist] Client [akka.tcp://[email protected]:2552/user/$a] gets contactPoints [akka.tcp://[email protected]:2560/system/receptionist] (all nodes)
[DEBUG] [08/11/2016 10:11:06.002] [ApiServiceActorSystem-akka.actor.default-dispatcher-4] [akka.tcp://[email protected]:2560/system/receptionist] Client [akka.tcp://[email protected]:2552/user/$a] gets contactPoints [akka.tcp://[email protected]:2560/system/receptionist] (all nodes)
[DEBUG] [08/11/2016 10:11:06.002] [ApiServiceActorSystem-akka.actor.default-dispatcher-4] [akka.tcp://[email protected]:2560/system/receptionist] Client [akka.tcp://[email protected]:2552/user/$a] gets contactPoints [akka.tcp://[email protected]:2560/system/receptionist] (all nodes)
[DEBUG] [08/11/2016 10:11:06.004] [ApiServiceActorSystem-akka.remote.default-remote-dispatcher-76] [akka.serialization.Serialization(akka://ApiServiceActorSystem)] Using serializer[akka.cluster.client.protobuf.ClusterClientMessageSerializer] for message [akka.cluster.client.ClusterReceptionist$Internal$Contacts]
[DEBUG] [08/11/2016 10:11:06.033] [ApiServiceActorSystem-akka.remote.default-remote-dispatcher-76] [akka.serialization.Serialization(akka://ApiServiceActorSystem)] Using serializer[akka.serialization.JavaSerializer] for message [akka.actor.Identify]
[DEBUG] [08/11/2016 10:11:06.037] [ApiServiceActorSystem-akka.remote.default-remote-dispatcher-24] [akka.serialization.Serialization(akka://ApiServiceActorSystem)] Using serializer[akka.serialization.JavaSerializer] for message [akka.actor.ActorIdentity]
[DEBUG] [08/11/2016 10:11:06.126] [ApiServiceActorSystem-akka.remote.default-remote-dispatcher-76] [akka.serialization.Serialization(akka://ApiServiceActorSystem)] Using serializer[akka.serialization.JavaSerializer] for message [akka.remote.EndpointWriter$AckIdleCheckTimer$]
[DEBUG] [08/11/2016 10:11:07.749] [ApiServiceActorSystem-akka.remote.default-remote-dispatcher-76] [akka.serialization.Serialization(akka://ApiServiceActorSystem)] Using serializer[akka.cluster.client.protobuf.ClusterClientMessageSerializer] for message [akka.cluster.client.ClusterReceptionist$Internal$Heartbeat$]
Но всякий раз, когда я пытаюсь отправить сообщение, я получаю эту ошибку:
java.lang.RuntimeException: Unable to find proto buffer class: com.myproject.api.common.messages.IsValidClientMessage$IsValidClient
at com.google.protobuf.GeneratedMessageLite$SerializedForm.readResolve(GeneratedMessageLite.java:1192)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at java.io.ObjectStreamClass.invokeReadResolve(ObjectStreamClass.java:1104)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1810)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1993)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1918)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1801)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:371)
at akka.serialization.JavaSerializer$$anonfun$1.apply(Serializer.scala:241)
at scala.util.DynamicVariable.withValue(DynamicVariable.scala:58)
at akka.serialization.JavaSerializer.fromBinary(Serializer.scala:241)
at akka.serialization.Serialization$$anonfun$deserialize$3.apply(Serialization.scala:142)
at scala.util.Try$.apply(Try.scala:192)
at akka.serialization.Serialization.deserialize(Serialization.scala:142)
at akka.actor.dungeon.Dispatch$class.sendMessage(Dispatch.scala:128)
at akka.actor.ActorCell.sendMessage(ActorCell.scala:374)
at akka.actor.Cell$class.sendMessage(ActorCell.scala:295)
at akka.actor.ActorCell.sendMessage(ActorCell.scala:374)
at akka.actor.RepointableActorRef.$bang(RepointableActorRef.scala:169)
at akka.actor.ActorRef.tell(ActorRef.scala:128)
at akka.pattern.AskableActorRef$.internalAsk$extension(AskSupport.scala:295)
at akka.pattern.AskableActorRef$.$qmark$extension1(AskSupport.scala:281)
at com.myproject.api.akka.actors.socket.ClientActor$$anonfun$receive$1.applyOrElse(ClientActor.scala:43)
at akka.actor.Actor$class.aroundReceive(Actor.scala:480)
at com.myproject.api.akka.actors.socket.ClientActor.aroundReceive(ClientActor.scala:16)
at akka.actor.ActorCell.receiveMessage(ActorCell.scala:526)
at akka.actor.ActorCell.invoke(ActorCell.scala:495)
at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:257)
at akka.dispatch.Mailbox.run(Mailbox.scala:224)
at akka.dispatch.Mailbox.exec(Mailbox.scala:234)
at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)
at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339)
at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)
at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)
Caused by: java.lang.ClassNotFoundException: com.myproject.api.common.messages.IsValidClientMessage$IsValidClient
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:264)
at com.google.protobuf.GeneratedMessageLite$SerializedForm.readResolve(GeneratedMessageLite.java:1183)
... 38 common frames omitted
Как я могу сериализовать свое сообщение? Почему это ClassNotFoundException происходит во время выполнения? Любая помощь будет очень благодарна
Там может быть 2 проблемы в вашем коде: 1. скомпилированный protobuf нет как у клиента, так и у сервера или 2. Так как совместимость с java-scala сложна, вы можете иметь классы case внутри объекта, который определяет ваш беспорядок Протокол возраста неверно разрешен protobuf. –
Какую версию библиотеки protobuf-java вы используете? –
@frank_neff Свой 2.6.1 – surenyonjan