Christoph Guse

Self-hosted Forgejo runner in Kubernetes

In your life as professional software developer you want to have a sourcecode management system and some kind of automated build of your software bundles. In the old days we often used a Git repository in combination with Jenkins as build system. Jenkins was divided up to a Jenkins Master

Kubernetes

Rancher Desktop and Kubernetes Services with external IPs

Example how to configure Rancher Desktop to access an externally running application by Endpoint.

gaming

Old Hardware + Linux Mint + GeForce NOW = Gaming Fun

Older Hardware with Linux Mint in combination of Geforce NOW are providing lots of gaming fun for modern games.

Cloud

Traefik container inter-communication

Introduction traefik is a convenient way to have a reverse proxy in your Docker setup. Docker containers hosting web applications or webservices can register in traefik and traefik does routing, load-balancing, ssl termination and HTTP/2 for you out of the box. This works smoothly but we had the following

Java

Working dark theme for Eclipse

Bright color scheme and the cool guys When you use the Eclipse IDE, in my case this is the Spring Tool Suite, the default color theme is bright with a white background. If you talk to guys who do a real programming language - in their eyes Java is not

Cloud

REST API documentation with Swagger

Introduction When you create a REST API for a modern Web application, i.e. by using spring-boot, you need some kind of documentation. You have do document what a REST endpoint does, which input the endpoints expects, what is validated, and so on, and so on. Of course your documentation

Cloud

Docker, applications and Traefik

Introduction A couple of weeks ago I started playing around with Docker. I set up a small server at home and I wanted to host several applications like a mailserver, nextcloud, an apache webserver hosting my panorama fotos, gitlab for my code and so on. It was not as complicated

Applications

Internet of Things (IOT) for a Java developer

Nowadays there is no possibility not to read about the new next thing: Internet of Thins (IOT). As a Java developer who mainly develops web applications and the backends IOT is not the daily business (at least in my case) but if you search hard enough you'll find

Java

JSR 303 Bean ValidationViolationChecker

Introduction In my daily work I often use Java Bean Validation (JSR 303) to get rid of validation boiler plate code in Java methods. The problem As Java Bean Validation is just declarative using annotations I want to test the validation in my JUnit tests. One may say these are

Java

Eclipse ResourceBundle Plugin - Update

Today I tried to install the Eclipse ResourceBundle Plugin (which I posted about here) in Spring Toolsuite 3.6 which is based on Eclipse 4.4 (Luna) and was horrified the version 0.8.0 does not work. I really like this very helpful plugin and use it for my

Java

Maven, spring-data JPA, EclipseLink and static weaving

Introduction My last Vaadin project at work is a somehow complex application and I was looking for a persistence layer which matches perfectly the given techniques Maven and Spring. I wanted to avoid Hibernate's lazy loading exceptions, so I searched for alternatives and found EclipseLink as standard JPA

Java

Uploader published

Today I published a new project, the Uploadr in BitBucket. Introduction Uploadr is a little command line tool written in Java which is able to upload fotos to flickr. Well, Uploadr isn't that little because I wanted to have some more features so it now is a kind

Applications

spring-mvp Vaadin addon

After my first successfully completed Vaadin project I knew: Vaadin is a very good technology but the provided possibilities to create event driven applications were too limited. Coming from Adobe Flex using the Cairngorm project I knew there should be more possibilities for dispatching events, register listeners and so on.

Java

Eclipse Resourcebundle Plugin

Introduction Almost every time I set up an Eclipse or Eclipse based (like Spring Source Tool Suite) IDE, sooner or later I need a good Properties file editor for editing translations in ResourceBundles. Unfortunately the one included into Eclipse - doesn't matter which Eclipse version - is not

Java

Vaadin TouchKit and Spring

Vaadin provides a convenient and fast way to create Rich Internet Applications. Normally "Desktop applications" which run in desktop browsers are created with Vaadin. For mobile applications running the webbrowser of mobile devices Vaadin provides the TouchKit addon. Spring integration with Vaadin is not provided by default but

Cloud

CloudFoundry Micro Cloud and Virtualbox

Clouds are very modern these days, so I decided to dive into the cloud, too. I descided to use CloudFoundry, because it is near to Spring and there are tools to use the cloud like a locally installed tomcat. But, how could it be different, it was not that easy

Applications

Quo vadis Flex?

A lot of things changed in the Adobe Flex world since I wrote my last entry. Adobe stopped the development for the Adobe Air Runtime for Linux systems, Adobe wanted to support Maven officially, Adobe stopped the development of FlashPlayer for Android and Adobe decided to give Flex to the

Applications

Barcode Scanner v0.2

A couple of weeks ago a former colleague of mine asked me if it would be possible to integrate the barcode scanner application into his application which does not use any Java. Well, of course this is possible! Flex can call Javascript methods given in the surrounding HTML so I

Concepts

Creating user interfaces with Wireframesketcher

A couple of weeks ago Peter Severin – the creator of WireframeSketcher contacted me and asked me if I would like to test his tool. Until now I used Balsamiq Mockups to sketch my possible GUIs so I was really looking forwart to testing WireframeSketcher. WireframeSketcher can be installed as RCP

Mobile

my first air application for android in google market

This week I published my first Adobe Air application for Android in the Google market. Originally I just wanted to test Flashbuilder Burrito how it feels to create a mobile application but after the application was finished, I wanted to test how the publish chain works. The application is a

Applications

Debugging Flex applications

Until yesterday it was fine for me using the integrated debugger in Flex-/Flashbuilder to debug my applications. It provides much comfort, nothing has to be configured, everything is fine. But currently I'm working on an application which consists of several modules which are built using flexmojos and

Applications

Flashbuilder additional Compiler arguments

If you build your Flex application using flexmojos version < 3.7 you have to give Flashbuilder some additional compiler settings for multilingual application. In my projects I use the standard flexmojos maven project structure. I put my locale properties files in src/main/resources/locale which means you have

Applications

Data Management with GraniteDS

Introduction Flex itself can't access any backend Java logic. One could use HTTP Services to access backend systems but if you want to transfert data as quick as possible you should use something like Adobe BlazeDS or GraniteDS. BlazeDS is provided by Adobe and does not have several

Applications

Incompatibility Flashbuilder 4.1 Eclipse Plugin and Eclipse Helios

Today I discoverd a strange bug in Flashbuilder 4.1 Eclipse plugin in combination with Eclipse Helios SR1. The installation was without problems and I was even able to run FlexUnit testcases for Flex Application projects but I wasn't able to run FlexUnit testcases for Flex Library projects.

Concepts

Creating user interfaces with Balsamiq Mockups

A couple of days a go I surfed the Adobe Air marketplace and found the application Balsamiq Mockups.It looked interesting but I mainly installed it to test if my Adobe Air installation on my Ubuntu 10.04 64Bit machine is configured correctly. The installation worked properly, Balsamiq Mockups started.