Stefan Arentz

I’ve created a 2.0 branch in the polarrose-wsf project where I want to try out some new ideas.
Some things on the list:

Merge the wsf and wsf-examples into one maven project as modules (already done)
Merge the projects on Google code
Add the wsf-client module to the project
Depend on Spring 2.5 for auto detection of action handlers. Just […]

90%How Addicted to Apple Are You?

The friendly folks from Webtide, home of Jetty, have released a final version of Hightide, their ‘Pro’ supercharged version of the most excellent Jetty 6.1 web container.
Hightide includes many components that you frequently need in Web 2.0 / AJAX-centric web applications. ActiveMQ is integrated for example. Hightide also comes with a high performance Cometd/Bayeux server.
Hightide […]

I did not have a change to attend the WWDC this year so I was excited when I read that Apple was organizing ‘Leopard Tech Days’ around the world. Including in my home town, Amsterdam!
It was organized at the Hilton and they took good care of us. Nice breakfast buffet, nice lunch. Hilton Amsterdam style: […]

Being in the office (thanks Aldert/Milton) with nothing but a big screen and no crying cat climbing up my legs certainly helps
I just committed a bunch of good improvements to the WSF framework. I ‘generified’ some of the WSF classes and also introduced a WebServiceActionContext.
The WebServiceActionHandler now looks like this:

public interface WebServiceActionHandler<Account extends […]

I always enjoy articles or presentations about how big players deal with scaling their infrastructure. Unfortunately details are usually scarce but sometimes a little gem appears. This time a great article has been written about Amazon’s ‘Dynamo’ service, a giant distributed key/value system that they use for their own applications and to power some of […]

I’ve always been fascinated by programming languages and I never really stopped to explore beyond the tools that I know well. So, somewhere last year I ordered a copy of Practical Common Lisp. Mostly out of curiousity and to learn a bit more about that strange language and understand where the hype that it is […]

At Polar Rose we use Cacti to monitor all our servers and services. Cacti is a simple tool that makes nice graphs of things like disk space used, bandwidth utilization or system load.
I wanted to use Cacti to keep track of some Java applications like ActiveMQ. Using JMX you can inspect applications pretty easily and […]