In our daily work we are dealing with data from many sources. Data in CSV files, from Cloud APIs, in mail servers, configuration files, Terraform plans, in logging systems, source code repositories and many more. Different formats, access methods, tools. And retrieving data from one such source can be challenging […]
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Creating a minimal container image for a Go application
How hard can it be – to create the smallest possible container image to run a Go application? It is not hard to create a container image that contains an binary executable file – and that is what a Go application turns into during the build process. However, that does […]
Apache NiFi: Having fun with Jolt transformations
Jolt is a Java library which can be used to transform JSON to JSON. A Jolt transformation specification itself is also a JSON file. You can use it in products such as Apache NiFi and Apache Camel. In this blog post I’ll describe my first experiences with Jolt transformations. For […]
Sorting an Angular Material table – how to use MatSort and sortingDataAccessors
Angular Material provides the MatSort directive as an easy way the include interactive sorting in the tables of your application. In this blogpost I will show the best way to add sorting to your Material table. In addition, I will show how to use custom sortingDataAccessors to sort on nested properties and case insensitively, and how to combine different sorting requirements.
AMIS DataSafe, the answer to Black Swan scenarios
How to be prepared for a black swan scenario?
How to scale and smarten up a real-life energy grid with Azure IoT
In this episode of the IoT Show, we discuss the IoT smart grid project that AMIS Conclusion has created for a customer in The Netherlands. We talk about a real-life large-scale energy grid and all the challenges we face implementing this on an Enterprise scale. Robbrecht van Amerongen will talk […]
Vagrant and Hyper-V: Don’t do it!
I’ve used Vagrant since 2015 in combination with Virtualbox for creating development machines. Recently however I’m experiencing more issues with Virtualbox. For example CPUs getting stuck when assigning multiple CPUs to a VM and issues with auto adjusting the guest resolution when resizing the VM window. These annoyances drove me […]
Apache NiFi: Forwarding HTTP headers
Apache NiFi can be used to expose various flavors of webservices. Using NiFi in such a way provides benefits like quick development using a GUI and of course data provenance. You know who called you with which data and where the data went. The NiFi is very scalable, delivery can […]
Architecture in an agile world
This year I had to work with a colleague for multiple internal poc’s that we could use to show customers. Together we started thinking about the approach and where to start. We planned to approach it in a Scrum way, but soon landed upon the question where architecture would fit […]
Java: How to fix Spring @Autowired annotation not working issues
Spring is a powerful framework, but it requires some skill to use efficiently. When I started working with Spring a while ago (actually Spring Boot to develop microservices) I encountered some challenges related to dependency injection and using the @Autowired annotation. In this blog I’ll explain the issues and possible […]
Ubuntu VM in VirtualBox: How to increase the size of a disk and make small(er) exports for distribution
Sometimes I create a VirtualBox disk for usage in a VM with a certain size. I think it will be enough for what I want to use the VM for. After using the VM for a while, it happens (often) that I need more space than I initially assigned. For […]
Best Agile Estimation Techniques – beyond Scrum Planning Poker
Many of the agile teams I know are using some form of planning poker for their agile estimation. However, for some agile estimation planning poker is just not the most ideal method. The estimation features are too large, the team is not inspired to poker 300 stories, there is not […]