Book Image

Learning Concurrent Programming in Scala - Second Edition

By : Aleksandar Prokopec
Book Image

Learning Concurrent Programming in Scala - Second Edition

By: Aleksandar Prokopec

Overview of this book

Scala is a modern, multiparadigm programming language designed to express common programming patterns in a concise, elegant, and type-safe way. Scala smoothly integrates the features of object-oriented and functional languages. In this second edition, you will find updated coverage of the Scala 2.12 platform. The Scala 2.12 series targets Java 8 and requires it for execution. The book starts by introducing you to the foundations of concurrent programming on the JVM, outlining the basics of the Java Memory Model, and then shows some of the classic building blocks of concurrency, such as the atomic variables, thread pools, and concurrent data structures, along with the caveats of traditional concurrency. The book then walks you through different high-level concurrency abstractions, each tailored toward a specific class of programming tasks, while touching on the latest advancements of async programming capabilities of Scala. It also covers some useful patterns and idioms to use with the techniques described. Finally, the book presents an overview of when to use which concurrency library and demonstrates how they all work together, and then presents new exciting approaches to building concurrent and distributed systems. Who this book is written for If you are a Scala programmer with no prior knowledge of concurrent programming, or seeking to broaden your existing knowledge about concurrency, this book is for you. Basic knowledge of the Scala programming language will be helpful.
Table of Contents (19 chapters)
Learning Concurrent Programming in Scala - Second Edition
About the Author
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The following exercises will improve your skills in building practical concurrent applications. Some of them require extending the ScalaFTP program from this chapter, while others require implementing concurrent applications from scratch. Finally, several exercises are dedicated to testing the performance and scalability of concurrent programs:

  1. Extend the ScalaFTP application to allow the addition of directories to the remote filesystem.

  2. Extend the ScalaFTP application so that the changes in the server filesystem are automatically reflected in the client program.

  3. Extend the ScalaFTP application so that it allows parallel regex searches over filenames in the remote filesystem.

  4. Extend the ScalaFTP server so that it allows recursively copying directories.

  5. Implement the download and upload functionality, and use Observable objects to display the file transfer progress in a Swing ProgressBar component.

  6. Extend the ScalaFTP client implementation so that a FilePane can display either a remote...