"Project Kenai at JavaOne" by Odchudzanie Poznan

Tue, 23 Jun 2009 08:55:15 +0000

I’m really greatful that you posted your slides. Too many people post stuff like “oh yeah I did that presentation. People loved it” but when asked for some materials or video they never post it.

"Project Kenai at JavaOne" by Nick

Tue, 09 Jun 2009 13:12:01 +0000

JRuby-Rack and Warbler, deploying to GlassFish v2.

"Project Kenai at JavaOne" by Christian Seiler

Tue, 09 Jun 2009 12:28:09 +0000

Are you using JRuby-Rack or the Glasfish gem?

Project Kenai at JavaOne

Nick Sieger — Tue, 09 Jun 2009 02:23:36 +0000

It’s just the beginning and a small milestone, but it’s a goal we set for ourselves by JavaOne last week that we reached: 10K registered users at http://kenai.com/. We were fortunate to be highlighted in the Tuesday afternoon keynote, which, to our collective relief, went off without a hitch. I also had a chance to speak a bit about Project Kenai behind the scenes in my technical session.

My slides are available and contain a decent overview of what we’ve been doing. One slide in particular seems to have surprised some folks: our codebase metrics.

12K lines of application code (everything in app/{controllers,models,helpers})
10K lines of views (HTML + template code in app/views)
1K lines of custom Javascript (public/javascripts excluding jQuery and plugins)
8K lines of test code (RSpec + plain text stories) (yes, we’re upgrading to Cucumber)
73.7% test coverage

If you’re doing Rails, you’re probably not all that surprised by these numbers; hopefully you’ve seen similar ones yourself. If you haven’t tried Rails, consider a site like kenai.com and ask yourself if you could build and maintain a production site like it with these numbers in your favorite language/framework.

Other takeaways from my talk:

Use Java what it’s good for; in this case, long-running server apps. The downtime of the JRuby/GlassFish-deployed Rails application has been minimal for us; the few cases where we’ve had issues, they’ve usually been self-inflicted application problems. Instead of running Monit with a pack of Mongrels that need to be periodically recycled, we run a few GlassFish domains per server and only recycle them when we deploy new code.
For the Java programmers out there, don’t be afraid to use stuff other than Java. We use Python, Django, Memcached, Perl, and anything that gets the job done.
You can build cool stuff quickly with community Rails plugins like attachment_fu, geokit, and will_paginate. Not news to Rails programmers, but I’d be interested to hear of any equivalents for Java-based web frameworks.
JRuby is a big win, allowing co-development on MRI and JRuby with deployment to GlassFish. JRuby’s java integration also allows for neat tricks like image_voodoo, a pure-Java imaging plugin for attachment_fu.

Nick Sieger: Project Kenai at JavaOne

"Project Kenai at JavaOne" by Odchudzanie Poznan

"Project Kenai at JavaOne" by Nick

"Project Kenai at JavaOne" by Christian Seiler

Project Kenai at JavaOne