Open Source

It’s the week before a conference. You’re giving a new talk. This is the moment when all speakers are at their least confident. And what, I have to write a blog to earn a shirt? Who made these rules? Oh, we did. Alright, let’s do this. Introducing OpenSource R³ Jam In a very PartyOne inspired front, we’re getting together with DevNexus, Hazelcast, Jakarta EE, Okta, and Sonatype needs to throw a fun new party at DevNexus next week in Atlanta, Georgia, March 6-8th. DevNexus has soared to the top of my US conferences list and is sitting right up there…

In the previous blog post “An Overview of MicroProfile Configuration” we have seen how to start using MicroProfile Configuration and covered the most common cases where it can be used. In today’s blog post, we are going to show you one of the advanced features of MicroProfile Configuration: the ability to add your own ConfigSource. To refresh your memory, MicroProfile Config already ships with a few ConfigSources by default: microprofile-config.properties file, system properties, and environment variables. What if your source of Configuration is somewhere else? Maybe a database or an API? Good news! MicroProfile Configuration allows you to create your…

When we are developing an application, it is usually a good practice to externalize some aspects of the application so we can change its runtime behavior without the need to change the code. This is what we call Configuration. A few examples may include the application language, the currency symbol, the username and password to connect to the database or a system path to store uploaded files. In a Monolithic Architecture, you may get away from Configuration. It is not a big deal to perform a couple more builds to change some parameters. In the Microservices world, it is impossible….