Best of this Week Summary 19 April - 25 April 2010

• An introduction to Gizzard, an open sourced sharding framework (store data across multiple computers instead of on just one) which is used by Twitter.
  


• A hands-on tutorial of creating a Spring application that uses Hibernate as JPA provider and JTA for transaction demarcation. A simple Order Processing Message Driven Bean is implemented that showcases this integration. It is deployed on a WebLogic 10.3 server.
  


• Last week Jira from the Apache Foundation was compromised. Here's a description of how the hackers gained access via XSS.
  

Best of this Week Summary 23 Sept - 29 Sept 2007

• Interesting article on TSS on how to integrate user "presence" (like the status of a user in instant messaging) into JEE (J2EE) environments. More uses beside IM come to mind for JEE applications. The article suggests using XMPP, also known as Jabber. Session Initiation Protocol (RFC-3856) could also have been used but XMPP has been chosen because of the maturity of its existing server and Java implementations. In the example the opensource software OpenFire together with Smack from JiveSoftware Inc is used. Shown is a solution with JMS.
  


• This guy, Derek Silvers, tried to rewrite his website (built with PHP) using Ruby on Rails. After 2(!) years he was only halfway. So he switched back to building it in PHP. The most interesting part of the post are the first 3 bullets in the "Inspired by Rails" part, where he lists his lessons learned:
  - all logic is coming from the models, one per database table, like Martin Fowler’s Active Record pattern.
  - no requires or includes needed, thanks to __autoload.
  - real MVC separation: controllers have no HTML or business-logic, and only use REST-approved HTTP. (GET is only get. Any destructive actions require POST.)