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Scala Programming Projects

You're reading from Scala Programming Projects Build real-world projects using popular Scala frameworks such as Play, Akka, and Spark

Product type Paperback

Published in Sep 2018

Publisher Packt

ISBN-13 9781788397643

Length 398 pages

Edition 1st Edition

Languages

Scala

Tools

Akka

Concepts

Programming Language

Authors (2):

Mikael Valot

Nicolas Jorand

View More author details

Table of Contents (13) Chapters

Preface

1. Writing Your First Program FREE CHAPTER

2. Developing a Retirement Calculator

3. Handling Errors

4. Advanced Features

5. Type Classes

6. Online Shopping - Persistence

7. Online Shopping - REST API

8. Online Shopping - User Interface

9. Interactive Browser

10. Fetching and Persisting Bitcoin Market Data

11. Batch and Streaming Analytics

12. Other Books You May Enjoy

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Understanding Apache Spark

Spark is an open source framework built to perform analytics on large datasets. Unlike other tools such as R, Python, and MathLab that are using in-memory processing, Spark gives you the possibility to scale out. And thanks to its expressiveness and interactivity, it also improves developer productivity.

There are entire books dedicated to Spark. It has a vast number of components and lots of areas to explore. In this book, we aim to get you started with the fundamentals. You should then be more comfortable exploring the documentation if you want to.

The purpose of Spark is to perform analytics on a collection. This collection could be in-memory and you could run your analytics using multiple threads, but if your collection is becoming too large, you are going to reach the memory limit of your system.

Spark solved this issue by creating an object to hold all of this data. Instead of keeping everything in the local computer's memory, Spark chunks the data into multiple...

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Authors (2)

Valot

Valot

Mikaël Valot is Principal Software Engineer at IHS Markit in London, UK. He is the lead developer of a strategic market risk solution for banking regulation. He has over 15 years of experience in the financial industry of the UK, Switzerland, and France. He has a Diplôme d'Ingénieur in Computing (equivalent to an M.Sc.) from Telecom Nancy, France. After years of working with Java, he started developing professionally with Scala in 2010, and never looked back. He was a speaker at Scala Exchange 2015. When he is not coding in Scala, Mikaël likes to dabble with Haskell, the Robotic Operating System, and deep learning. He strongly believes that functional programming with strong typing is the best way to write safe and scalable programs.

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Nicolas Jorand

Nicolas Jorand

Nicolas Jorand is a senior developer. He worked for the finance industry for about 15 years before switching to the energy industry. He is a freelancer enjoying a partial time at Romande Energy, a Swiss utility company providing exclusively green electricity. Nicolas is a full-stack developer, playing with microcontrollers, developing standard web user and 3D interfaces on Unity, developing software to animate a humanoid robot (Nao) and finally, working with Scala on integration and backend software. All these projects are done with the same leitmotif; "In the dev process, get the issues as early as possible."

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