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SMEs, Steer Clear of Microservices!

April 15, 2024

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Other July 24, 2019

Useful Git Aliases That Ease Your Life

When you work with git you can define aliases to make your experience even more productive and elegant. In this short post I’d like to present aliases that I use frequently and how they work. And I’ll start with my favorite: git recent-branches. Recent Branches git recent-branches This command gives you the following output: The result of the recent-branches alias. This command shows you all branches you recently worked on. That solves the usual problem of me forgetting the names of the branches I worked on.

Marcus Held

Clean Code June 18, 2019

Never Design A Class That Knows How It's Used

When you design a class you should never design it in a way that the class itself knows how it is used from the outside. Breaking this principle will make it difficult for other developers providing other implementations. I recently stumbled upon an implementation of different entities where the implementation had to provide a unique id for itself. Why this is causing problems and how you better design such a situation I’ll explain in this post.

Marcus Held

Continuous Integration May 24, 2019

Jenkins Bitbucket Branch Source Plugin's Webhook Is Not Working

In my current project we use Bitbucket Server as our Git backend and Jenkins with a pipeline multibranch project to build our project. For better integration of both technologies we decided to use the Bitbucket Branch Source Plugin . This enables us to trigger automated builds and maintain dynamic jobs on our Jenkins. But installing the necessary webhooks turned out to not be a trivial task. The goals I want to achieve are the following:

Marcus Held

Other May 17, 2019

That's How Wrong Google Analytics Can Be

This blog is not very old yet. I just started it a month ago and of course I wanted to know if somebody is even reading it. So after a few days I included Google Analytics to get an impression of the visitors of my page and if I even have an audience here. But barely any visit got tracked and since I didn’t even filter out my own ip I had the impression that I’m basically the only user of my page.

Marcus Held

Spring May 9, 2019

Custom Authentication Filter with Spring Security

After answering a question on stackoverflow about how to configure Spring Security with your own authentication mechanism I’d like to go into more details in this post. I’ll implement a simple use case where the actual authentication is done by reading the username and password from the header of a request. The example method we implement in this post is NOT a secure way of implementing authentication. I just choose it for the sake of simplicity to demonstrate how to register your own authentication in Spring Security.

Marcus Held