Introduction
JavaScript allows for operating on arrays in a functional way, e.g. using filter or map functions. As an argument for these functions we can pass lambda expression Read more
Author: Dominik Przybysz
Loops performance in Groovy
Introduction
In the 2018 Advent of Code challenged I solved all the puzzles in Groovy. It is pretty obvious, that choosing good data structure is the most important to obtain Read more
Testing Kotlin with Spock Part 3 – Interface default method
Kotlin allows you to put method implementation in an interface. The same mechanism can be found in Java interfaces as default methods (and also Groovy or Scala traits). Read more
Testing Kotlin with Spock Part 2 – Enum with instance method
Testing Kotlin with Spock Part 2 – Enum instance method
The enum class with instance method in Kotlin is quite similar to its Java version, but they are look a bit different Read more
Testing Kotlin with Spock Part 1 – Object
The object keyword in Kotlin creates singleton in a very convenient way. It can be used for example as a state of an operation. Spock Framework is one of the most expressive Read more
MapStruct mapper injection in OSGi Blueprint
Karaf configuration as Groovy file
Introduction
By deafault, Apache Karaf keeps configuration for bundles in the etc directory as flat properties files. We can override configuration for the storing Read more
Easy fraud detection in Nigerian bank with TouK Nussknacker
Problem
We have a large mysql database with payment transactions from multiple banks, aggregated for Nigerian biggest operator. Each day the customers create about Read more
Using Kotlin extensions in Groovy
OSGi Blueprint visualization
What is blueprint?
Blueprint is a dependency injection framework for OSGi bundles. It could be written by hand or generated using Blueprint Maven Plugin. Blueprint file Read more