Niewbie OutOfMemory problem
- by Nick
So I am trying to create a producer/consumer type scala app.
The LoopControl just sends a message to the MessageReceiver continoually.
The MessageReceiver then delegates work to the MessageCreatorActor (whose work is to check a map for an object, and if not found create one and start it up).
Each MessageActor created by this MessageCreatorActor is associated with an Id.
Eventually this is where I want to do business logic.
But I run out of memory after 15 minutes.
Any help is appreciated
import scala.actors.Actor
import java.util.HashMap;
import scala.actors.Actor._
case object LoopControl
case object MessageReceiver
case object MessageActor
case object MessageActorCreator
class MessageReceiver(msg: String) extends Actor {
var messageActorMap = new HashMap[String, MessageActor]
val messageCreatorActor = new MessageActorCreator(null, null)
def act() {
messageCreatorActor.start
loop {
react {
case MessageActor(messageId) =
if (msg.length() 0) {
var messageActor = messageActorMap.get(messageId);
if(messageActor == null) {
messageCreatorActor ! MessageActorCreator(messageId, messageActorMap)
}else {
messageActor ! MessageActor
}
}
}
}
}
}
case class MessageActorCreator(msg:String, messageActorMap: HashMap[String, MessageActor]) extends Actor {
def act() {
loop {
react {
case MessageActorCreator(messageId, messageActorMap) =
if(messageId != null ) {
var messageActor = new MessageActor(messageId);
messageActorMap.put(messageId, messageActor)
println(messageActorMap)
messageActor.start
messageActor ! MessageActor
}
}
}
}
}
class LoopControl(messageReceiver:MessageReceiver) extends Actor {
var count : Int = 0;
def act() {
while (true) {
messageReceiver ! MessageActor ("00-122-0X95-FEC0" + count)
//Thread.sleep(100)
count = count +1;
if(count 5) {
count = 0;
}
}
}
}
case class MessageActor(msg: String) extends Actor {
def act() {
loop {
react {
case MessageActor =
println()
println("MessageActor: Got something- " + msg)
}
}
}
}
object messages extends Application {
val messageReceiver = new MessageReceiver("bootstrap")
val loopControl = new LoopControl(messageReceiver)
messageReceiver.start
loopControl.start
}
