Andrej Koelewijn

I’m working on a small javascript library to use svg drawings for presentations. This would allow you to display a single svg drawing similar to normal presentations on slideshare or speakerdeck. You can see the current state here: SVG Presenter test. I wanted to see if you can use webfonts in an svg drawing in [...]

When I tried to use the following example by David Dossot mule-agent-based-sync-http-request-handling my jms endpoint times out. In the log i can see that the response message is created, but the outbound endpoint never receives it. After some googling i found the following blog post by Claude Mamo: ReplyTo in a Mule flow. Adding the [...]

Here is a quick example how you can access you can access properties loaded using spring using the Mule expression language.

We’ll that’s the goal. Currently i have 5 ubuntu server instances running on my laptop (1 loadbalancer, 2 application servers, 2 database server), which are provisioned using Puppet. Next step is installing cloudfoundry. Some useful links: Howto: Install the CloudFoundry Server PaaS on Ubuntu 11.10 Getting started with the CloudFoundry Client in Ubuntu Vcap readme [...]

One of the main goals that Software architects try to achieve is to design solutions that will last a long time. You’ll often hear an architect say that the product will have a life span of about ten years, and that all technical choices should support this goal. This means that any framework you select [...]

Here’s a simple groovy script to show deployed Apache Camel routes. It uses JMX to query the description of routes available. Here’s an example of the output generated by this script:

There’s an interesting article on High Scalability discussing the use of .net within MySpace: Did the Microsoft Stack Kill MySpace? The discussion is based on this post by Robert Scoble: MySpace’s death spiral: insiders say it’s due to bets on Los Angeles and Microsoft. The conclusion is that you can’t blame the microsoft stack for [...]

Seems to me that github is in an excellent position to channel open source development efforts by adding gamification to their website. Recently I had some discussions with organizations that consider opensourcing some of their sourcecode. The main thing they worry about is control. How do you control that improvements are feed back to the [...]

The following groovy script displays a list of queues in ActiveMQ with some statistics per queue.

The following groovy script can be used to list all Camel routes on a running servicemix. Per route it will display state of the route, and some statistics.