Akka/Scala example source code file (StatsWorker.java)

This example Akka source code file (StatsWorker.java) is included in my "Source Code Warehouse" project. The intent of this project is to help you more easily find Akka and Scala source code examples by using tags.

All credit for the original source code belongs to akka.io; I'm just trying to make examples easier to find. (For my Scala work, see my Scala examples and tutorials.)

Akka tags/keywords

actor, akka, cluster, hashmap, integer, map, override, statsworker, string, untypedactor

The StatsWorker.java Akka example source code

package sample.cluster.stats;

import java.util.HashMap;
import java.util.Map;

import akka.actor.UntypedActor;

//#worker
public class StatsWorker extends UntypedActor {

  Map<String, Integer> cache = new HashMap<String, Integer>();

  @Override
  public void onReceive(Object message) {
    if (message instanceof String) {
      String word = (String) message;
      Integer length = cache.get(word);
      if (length == null) {
        length = word.length();
        cache.put(word, length);
      }
      getSender().tell(length, getSelf());

    } else {
      unhandled(message);
    }
  }

}
//#worker