我有一个连接到远程 Akka 集群系统的游戏框架 2,两个系统都在 java 中。我有一个包装在一个类中的数据结构,并且我已经在包装类上实现了可序列化。我想使用数据结构进行远程计算,但是每当我尝试将包装类发送到远程 Akka 系统时,都会出现错误。
下面是代码片段。
这是包装类
package controllers;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.Map;
public class Coordinates implements Serializable{
String className = null;
Map <String,ArrayList<Object>> jMap = null;
boolean train = false;
public Coordinates() { train = true;}
public Coordinates (String className)
{
this.className = className;
}
public Coordinates (Map <String,ArrayList<Object>> jMap , boolean b)
{
this.jsonMap = jMap;
train = b;
}
}
这是发送对象的 Actor 类
package controllers;
import akka.actor.ActorRef;
import akka.actor.UntypedActor;
public class LocalActor extends UntypedActor {
ActorRef masterActor;
@Override
public void onReceive(Object arg) throws Exception {
if(arg instanceof Coordinates)
{ Coordinates msg = (Coordinates) arg ;
masterActor.tell(msg , getSelf());
}
}
public void preStart()
{
masterActor = getContext().actorFor("akka://MasterNode@127.0.0.1:2552/user/masterActor");
}
}
这是接收课程的 Akka 演员
package Rubine_Cluster;
import java.io.Serializable;
import akka.actor.*;
public class MasterActor extends UntypedActor implements Serializable{
public MasterActor(){System.out.println(" the masteractor has been started ");}
@Override
public void onReceive(Object message) throws Exception {
System.out.print(" this is from before me to you "+message.toString());
if(message instanceof Coordinates)
{ Coordinates msg = (Coordinates) message;
try { System.out.print(" this is from message " + msg.jsonMap.toString());
getSender().tell( 1234 , getSelf());
} catch (Exception e) {
getSender().tell(new akka.actor.Status.Failure(e), getSelf());
throw e;
}
}
else{ unhandled(message);}
}
}
这是来自我的 Eclipse IDE 的错误消息
[INFO] [10/02/2012 02:58:35.606] [main] [ActorSystem(MasterNode)] REMOTE: RemoteServerStarted@akka://MasterNode@127.0.0.1:2552
Master Node is called
the masteractor has been started
[INFO] [10/02/2012 02:59:28.223] [MasterNode-7] [ActorSystem(MasterNode)] REMOTE: RemoteClientStarted@akka://LocalNode@127.0.0.1:63305
[ERROR] [10/02/2012 02:59:28.334] [MasterNode-7] [ActorSystem(MasterNode)] REMOTE: RemoteServerError@akka://MasterNode@127.0.0.1:2552] Error[java.lang.ClassNotFoundException:controllers.Coordinates
at java.net.URLClassLoader$1.run(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at java.io.ObjectInputStream.resolveClass(Unknown Source)
at akka.util.ClassLoaderObjectInputStream.resolveClass(ClassLoaderObjectInputStream.scala:12)
at java.io.ObjectInputStream.readNonProxyDesc(Unknown Source)
at java.io.ObjectInputStream.readClassDesc(Unknown Source)
at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source)
at java.io.ObjectInputStream.readObject0(Unknown Source)
at java.io.ObjectInputStream.readObject(Unknown Source)
at akka.serialization.JavaSerializer$$anonfun$1.apply(Serializer.scala:121)
at scala.util.DynamicVariable.withValue(DynamicVariable.scala:57)
at akka.serialization.JavaSerializer.fromBinary(Serializer.scala:121)
at akka.serialization.Serialization.deserialize(Serialization.scala:73)
at akka.remote.MessageSerializer$.deserialize(MessageSerializer.scala:22)
at akka.remote.RemoteMessage.payload(RemoteTransport.scala:210)
at akka.remote.RemoteMarshallingOps$class.receiveMessage(RemoteTransport.scala:276)
at akka.remote.netty.NettyRemoteTransport.receiveMessage(NettyRemoteSupport.scala:30)
at akka.remote.netty.RemoteServerHandler.messageReceived(Server.scala:182)
at org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:75)
at akka.remote.netty.RemoteServerHandler.handleUpstream(Server.scala:154)
at org.jboss.netty.channel.StaticChannelPipeline.sendUpstream(StaticChannelPipeline.java:366)
at org.jboss.netty.channel.StaticChannelPipeline$StaticChannelHandlerContext.sendUpstream(StaticChannelPipeline.java:528)
at org.jboss.netty.handler.execution.ChannelUpstreamEventRunnable.run(ChannelUpstreamEventRunnable.java:44)
at org.jboss.netty.handler.execution.OrderedMemoryAwareThreadPoolExecutor$ChildExecutor.run(OrderedMemoryAwareThreadPoolExecutor.java:312)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
]
我也在 Remote Akka 系统中实现了 Coordinate 类。任何建议或帮助将不胜感激。谢谢