This is part 2 of the series called “Functional Java by Example”. The example I’m evolving in each part of the series is some kind of “feed handler” which processes…
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Functional Programming (FP) is about avoiding reassigning variables, avoiding mutable data structures, avoiding state and favoring functions all-the-way. What can we learn from FP if we would apply functional techniques…
Why Our new JavaScript client application regularly calls the /health endpoint of our Grails backend to determine on- of offline state. Things started to become “funny” with it.
Jenkins is a very neat tool to implement a continuous delivery process, mainly due to its flexibility. Sometimes it can be hard though to keep complexity low, and when that…
The release of Spring Framework version 5 is just around the corner and it contains a lot of new features. One of those is the WebFlux framework. It adds support…
Strangling pipelines This practical example is about the strangulation pattern, as explained by Martin Fowler here, applied to pipelines. The situation Right after ditching the old manually managed Jenkins…
By now everybody who has ever worked on a distributed system has heard of the CAP theorem. Simply put, it states that you have to choose between being (C)onsistent or being (A)vailable….
Afgelopen donderdag (6 april) ben ik naar devcon geweest. Dit is een jaarlijkse conferentie georganiseerd door Luminis en is voor en door (Luminis) developers gemaakt. Het is een…
Begin april waren Ted Vinke en ik (Koen Aben) op de Spaanse conferentie Greach, om onze open source software te presenteren. Greach is de jaarlijkse conferentie in Madrid voor de…
The context Grails makes it very easy to put any logic of your application in a service. Just grails create-service and you’re good to go. There’s a single instance by…