Book Image

Scala Programming Projects

By : Mikael Valot, Nicolas Jorand
Book Image

Scala Programming Projects

By: Mikael Valot, Nicolas Jorand

Overview of this book

Scala Programming Projects is a comprehensive project-based introduction for those who are new to Scala. Complete with step-by-step instructions and easy-to-follow tutorials that demonstrate best practices when building applications, this Scala book will have you building real-world projects in no time. Starting with the fundamentals of software development, you’ll begin with simple projects, such as developing a financial independence calculator, and then advance to more complex projects, such as a building a shopping application and a Bitcoin transaction analyzer. You’ll explore a variety of Scala features, including its OOP and FP capabilities, and learn how to write concise, reactive, and concurrent applications in a type-safe manner. You’ll also understand how to use libraries such as Akka and Play. Furthermore, you’ll be able to integrate your Scala apps with Kafka, Spark, and Zeppelin, along with deploying applications on a cloud platform. By the end of the book, you’ll have a firm foundation in Java programming that’ll enable you to solve a variety of real-world problems, and you’ll have built impressive projects to add to your professional portfolio.
Table of Contents (18 chapters)
Title Page
Copyright and Credits
Packt Upsell
Contributors
Preface
Index

Introduction to Zeppelin


Apache Zeppelin is an open source software offering a web interface to create notebooks. In a notebook, you can inject some data, execute snippets of code to perform analysis on the data, and then visualize it.

Zeppelin is a collaborative tool; several users can use it simultaneously. You can share notebooks and define the role of each user. You would typically define two different roles:

  • The writer, usually a developer, can edit all the paragraphs and create forms.
  • The end user does not know much about the technical implementation details. He will just want to change some values in a form and then look at the effect on the results. The results can be a table or a graph, and can be exported to CSV.

Installing Zeppelin

Before installing Zeppelin, you need to have Java and Spark installed on your machine.

Follow these steps to install Zeppelin:

  1. Download the binary from: http://zeppelin.apache.org/download.html.
  2. Explode the .tgz file using your favorite program

That's it. Zeppelin...