Johan's Blog

Wed 12 November 2008

OpenSocial, JavaScript and Java

I am working with OpenSocial for a while now. Apart from the organizational challenges (aligning the companies behind Orkut, MySpace, hi5,...), there are a lot of architectural and conceptual discussions going on at the OpenSocial mailing lists. This is not a surprise, OpenSocial defines a JavaScript "environment" (client-part) where the implementations also require a server part that can be done in any language -- including Java.

written on 09:20. 0 comments...

Fri 10 October 2008

Java Performance and L2 cache

It surprises me how many times Java Performance is considered to be linear proportional to the clock frequency of the CPU, thereby ignoring all other parameters.

written on 08:38. 0 comments...

Mon 29 September 2008

OpenSocial, Shindig and Dali

I blogged about OpenSocial about a month ago. Meanwhile, we started the integration of the Shindig reference implementation with DaliCMS.

written on 15:56. 0 comments...

Tue 23 September 2008

Communication between websites

The number of dynamic websites is exploding. But also, the definition of "dynamic" is exploding. We are not talking about updating content, but rather about integrating content and services from different sources.

written on 18:03. 0 comments...

Thu 18 September 2008

Integrating with Adobe Acrobat Connect

Recently, I got a trial account for Adobe Acrobat Connect Pro. Although I am impressed by the functionality of this product itself, I am mainly interested in how to connect with Adobe Connect, and how to integrate it with existing Java applications. It is rather easy to do so!

written on 08:50. 0 comments...

Mon 8 September 2008


Last week, Poppunt launched the music community in Belgium. The project is created using LodgON's Dali software, running on top of GlassFish.

written on 13:33. 0 comments...

Fri 22 August 2008

OpenSocial evolutions

At this moment, I am working on three projects that somehow are related to OpenSocial. This is not a coincidence.

written on 22:22. 0 comments...

Mon 18 August 2008

GlassFish Roadmaps

The roadmaps for GlassFish v2.1 and v3 are available online. One of the consequences of Sun Microsystems making their application server an Open Source effort, is that we can see and learn from their release policies.

written on 08:27. 0 comments...

Fri 1 August 2008

Using Knopflerfish Desktop in GlassFish v3

In a previous blog entry, I wrote about running GlassFish v3 on the KnopflerFish OSGi Framework. I spent some more time on this, in particular I managed to use the KnopflerFish Desktop bundle to inspect the GlassFish Bundles and Services.

written on 22:04. 0 comments...

Thu 31 July 2008

OSGi Modularity in DaliCMS and GlassFish

If you are following my blog, you probably know that I am recently investigating the modularity of GlassFish v3 and see how it is using the OSGi technology. The main reason for this is that I see some similarities with DaliCMS, the open source "Web 2.0 ready Content Management" system we developed with LodgON and that runs on top of GlassFish.

written on 13:09. 0 comments...