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scala-logo

Scala snippets 1: Folding

Coming from a Java background, Scala provides lots of nice features and libraries that allow you to create nice and concise code. Wrapping your head around these concepts though, can ...
gradle-logo

Gradle Goodness: Using CopySpec with Tasks

To define a Copy task we specify the files we want to copy and to which directory. This definition is a CopySpec instance. It contains the rules that defines what we want to copy. The ...
gradle-logo

Gradle Goodness: Using and Working with Gradle Version

To get the current Gradle version we can use the gradleVersion property of the Gradle object. This returns a string value we can use for displaying the values. If we want to compare ...
clojure-logo

Clojure at Scale: Why Python Just Wasn’t Enough for AppsFlyer

A first hand experience and an introduction to Clojure at scale Still considered a bit of an esoteric language, Clojure is one of the JVM languages that get us excited. There aren’t ...
scala-logo

Spark: Parse CSV file and group by column value

I’ve found myself working with large CSV files quite frequently and realising that my existing toolset didn’t let me explore them quickly I thought I’d spend a bit of time looking ...
scala-logo

First steps with REST, Spray and Scala

On this site you can already find a couple of articles on how to do REST with a multiple of different frameworks. You can find an old one on Play, some on Scalatra and I even started ...
akka-logo

Akka Notes – Actor Supervision – 8

Failures are more like a feature among distributed systems. And with Akka’s let it crash fault tolerance model, you could achieve a clear separation between your business logic ...
groovy-logo

Using Groovy for Bash (shell) Operations

Recently I needed to create a groovy script that deletes some directories in a Linux machine. Here’s why:                  We have a ...
akka-logo

Clustering reactmq with akka-cluster

In the last two posts on reactmq, I described how to write a reactive, persistent message queue. The queue has the following characteristics:                  there ...
akka-logo

Akka Notes – DeathWatch – 7

When we talked about Actor lifecycle, we saw that Actors could be stopped by various means (using ActorSystem.stop or ActorContext.stop or sending a PoisonPill – there’s ...
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