Book Image

Akka Cookbook

By : Vivek Mishra, Héctor Veiga Ortiz
Book Image

Akka Cookbook

By: Vivek Mishra, Héctor Veiga Ortiz

Overview of this book

Akka is an open source toolkit that simplifies the construction of distributed and concurrent applications on the JVM. This book will teach you how to develop reactive applications in Scala using the Akka framework. This book will show you how to build concurrent, scalable, and reactive applications in Akka. You will see how to create high performance applications, extend applications, build microservices with Lagom, and more. We will explore Akka's actor model and show you how to incorporate concurrency into your applications. The book puts a special emphasis on performance improvement and how to make an application available for users. We also make a special mention of message routing and construction. By the end of this book, you will be able to create a high-performing Scala application using the Akka framework.
Table of Contents (18 chapters)
Title Page
About the Authors
About the Reviewer
Customer Feedback

Creating a RoundRobinPool of actors

In this recipe, you will learn how to create a RoundRobinPool for actors. A RoundRobinPool is a group of the same type of actors and resembles the property whereby messages are delivered one by one to all the actors in the loop. In RoundRobinPool, all the actors share the same mailbox.

Getting ready

To step through this recipe, you will have to import the Hello-Akka project in the IDE.

How to do it...

  1. Create a Scala file, RoundRobin.scala, in the package com.packt.chapter3.
  2. Add the following imports to the top of the file:
        import{Props, ActorSystem, Actor} 
        import akka.routing.RoundRobinPool 
  1. Let's define an actor as follows:
        class RoundRobinPoolActor extends Actor { 
          override def receive = { 
            case msg: String => println(s" I am ${}") 
            case _ => println(s" I don't understand the message") 


  1. Let's create a test application:
        object RoundRobinPoolApp...