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 BalancingPool of actors

A BalancingPool tries to redistribute the work among the actors for performance improvement. In the BalancingPool, all actors share the same mailbox.

Getting ready

Just import the Hello-Akka project in the IDE; other prerequisites are the same as before.

How to do it...

  1. Create a Scala file, Balancingpool.scala, in the package com.packt.chapter3.
  2. Add the following imports at the top of the file:
      import{Props, ActorSystem, Actor} 
      import akka.routing.BalancingPool 
  1. Define a simple actor as an example:
        class BalancingPoolActor extends Actor { 
          override def receive = { 
            case msg: String => println(s" I am ${}") 
            case _ => println(s" I don't understand the message") 
  1. Create a simple test application as follows:
        object balancingpool extends App { 
          val actorSystem = ActorSystem("Hello-Akka") 
          val router =