Recent Posts by Juergen Kress

  GraalVM: a game changer for Java and Serverless? TL;DR;   Java Functions compiled into a native executable using GraalVM reduces cold start times and memory footprint by order of magnitude compared to running on JVM. Native Java Functions performs equal to or better than Go functions in terms of execution time and memory used. Native Java Functions executable runs from scratch base image, thus have a similar size compared to Go executable images.   Source code is available at https:...

  In this article I introduce the concept of the Microprocesses Architecture which addresses some important limitations of traditional monolith Case Management applications.This article has been updated on 2018-05-21 to correct a link to a previous blog article.In the Oracle Integration Cloud a Case Management application consists of at least one Dynamic Process that on its turn consists of Case Activities. A Case Activity is implemented by a (structured) Process, or a Human...

In this article, I’ll explain how I implemented version based traffic routing between Fn Functions using Istio service mesh. I’ll start by explaining the basics of Istio routing and the way Fn gets deployed and runs on Kubernetes. In the end, I’ll explain how I was able to leverage Istio service mesh and its routing rules to route traffic between two different Fn functions. Be aware that the explanations that follow are very basic and simple — my intent was not to explain the...

In a previous article I talked about an OSBServiceExplorer tool to explore the services (proxy and business) within the OSB via WebLogic Server MBeans with JMX. The code mentioned in that article was based on Oracle Service Bus 11.1.1.7 (11g). In the meantime the OSB world has changed (for example now we can use pipelines) and it was time for me to pick up the old code and get it working within Oracle Service Bus 12.2.1.1.0 (12c). This article will explain how the...

You've heard of microservices, but what's a micro frontend? You'll learn this and how to get started with a micro frontend for web developers in this post. This post is based on my Oracle Code 2018 Warsaw talk. View the presentation on SlideShare from andrejusb. Wondering what "micro frontends" means? Check the micro frontends description here. Simply speaking, a micro frontend must implement business logic from top to bottom (database, middleware, and UI) in an isolated...

Prepration for the #PaaSForum are in full swing. It’s a big investment from you are partners to attend the conference. Therefore we want to make sure that you get the maximum out of it like new ideas & business case for our joint customers, market & promote your success and new cloud based service offerings, new demos & showcases and hands-on training & certification. For each attendee we plan to offer a 1+1 months free Oracle cloud trial worth up to $ 10.000! Join the emergi...

Prepration for the #PaaSForum are in full swing. It’s a big investment from you are partners to attend the conference. Therefore we want to make sure that you get the maximum out of it like new ideas & business case for our joint customers, market & promote your success and new cloud based service offerings, new demos & showcases and hands-on training & certification. For each attendee we plan to offer a 1+1 months free Oracle cloud trial worth up to $ 10.000! Join the emergi...

  For developers, installing a full blown local SOA Suite environment has never been a favorite (except for a select few). It is time consuming and requires you to download and run various installers after each other. If you want to start clean (and you haven’t taken precautions), it could be you have to start all over again. There is a new and easy way to get a SOA Suite environment up and running without downloading any installers in only a couple of commands without...

There is a lot of talk going on about Microservices architecture these days. Since I presented about the subject at the NLOUG Tech Experience this year, I've been getting a lot of questions and comments about it, so I've decided to make a more structured breakdown through a series of blogs. To kick things off, I will explain what Microservices architecture is, which in itself is not that simple. Definition There is no generally accepted definition of Microservices architecture....