pekko/akka-docs/src/test/java/jdocs/actor/GraduallyBuiltActor.java

/*
 * Copyright (C) 2009-2020 Lightbend Inc. <https://www.lightbend.com>
 */

package jdocs.actor;

// #imports
import akka.actor.AbstractActor;
import akka.event.Logging;
import akka.event.LoggingAdapter;
import akka.japi.pf.ReceiveBuilder;

// #imports

// #actor
public class GraduallyBuiltActor extends AbstractActor {
  private final LoggingAdapter log = Logging.getLogger(getContext().getSystem(), this);

  @Override
  public Receive createReceive() {
    ReceiveBuilder builder = ReceiveBuilder.create();

    builder.match(
        String.class,
        s -> {
          log.info("Received String message: {}", s);
          // #actor
          // #reply
          getSender().tell(s, getSelf());
          // #reply
          // #actor
        });

    // do some other stuff in between

    builder.matchAny(o -> log.info("received unknown message"));

    return builder.build();
  }
}
// #actor