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Showing posts from 2009

HOW-TO: OEPE - FastSwap with Maven2 and M2Eclipse Plugin

At the moment there is not enough information if you want to jump start with OEPE (and of course using FastSwap) and Maven2 (using M2Eclipse plugin). This HOW-TO shows you how to achieve this. You need to have Eclipse (3.4 or 3.5), WLS (10.3 or 11) OEPE, Maven2 and M2Eclipse installed correctly before you can follow the steps below: 1. Create a web application with the webapp wizard (dynamic web project). Choose a webapp based on WLS (10.3 in my case). Please change following settings afterwards to be Maven complianced: Source for web: src/main/webapp Source for Java: src/main/java 2. Turn on Maven project on the project above ("mavenized the project") with M2Eclipse. 3. After you mavenized the project you can delete the directory build/classes since Maven uses target/classes directory. Everything should be customized to Maven directory structure automatically. 4. You can add src/test/java - if you need it src/test/resources - and also src/main/resources

Spring Batch

Here are some good introductions to Spring Batch: Introducing Spring Batch Slides from SpringSource Getting Started With Spring Batch 2.x Reference documentation to Spring Batch 2.x Have fun! Lofi.

One Day in your Life... with UML2, oAW, Weblogic FastSwap, Oracle Enterprise Pack for Eclipse, Maven2 and SpringFramework...

In my new project - as usual in a software project - we have a very tight schedule. Using our old JEE application architecture (Oracle 10g, EJB 2.x, JFormular, Ant with Maven2 dependencies, full deployment EAR, WAR and EJB JAR on Weblogic 10.3 with Java6) would mean that we will have a long turn-around time (code, compile, deploy and test) for our development. Our build process with Ant does not support "naked" deployment", so it takes ages before the artefacts are built, jarred and can be deployed in Weblogic. In case that you only change one small thing in your web layer (JSP file, Java class) you will need to go through all those build steps. In combination that at that time I had an old development hardware (3 years old) you can imagine how horrible the situation was... So I was searching for a better solution. We need a fast turn around time, especially in our web layer because I'm not an expert in JFormular and I definitely need to "try and error".

Bye bye SMTP - Welcome Wave Protocol

It's very interesting to see that Google has developed a new protocol for e-mail, yes SMTP is just too old and boring, Wave protocol will come soon - at least we already have one provider who will implement this new protocol, I call it as a "reference provider", yes, it's Google Wave :-) Okay before I begin with this story, one thing we need to know: "Wave is just a protocol ( ), a specification, just like SMTP, HTTP, HTML, TCP/IP, OpenID, OAuth, OpenSocial, etc. This means that everyone can implement this protocol to build some new products based on it". "Google Wave ( ) is an implementation of the Wave protocol". A Google product which supports Wave protocol. I also call Google Wave as a reference implementation and reference provider of the Wave protocol. If you want to understand the terminology in Wave protocol, please check out this article: Google Wave: A Complete Guide . O

Bug in Chrome 2.0.x.x: Weblogic Console 10.3.x.x

If you are working with Oracle Weblogic console 10.3.x.x and you are using Chrome 2.0.x.x you won't be able to see the "advanced tabs" on the bottom of every pages of the console. In some pages of the Weblogic console you can see at the bottom an "advanced tab" which can be opened by clicking on it. The tab will open smoothly in Firefox. Only in Chrome you won't see this tab, as if it were not existing at all. Just take a look at the two screenshots below (comparison between Firefox and Chrome 2.0.x.x for the same page). Chrome 2.0.x.x - no "Advanced" tab: Firefox 3 - with "Advanced" tab: So be careful and use Firefox for Oracle Weblogic 10.3.x.x console... Cheers!

Use Case Points (UCP) Method

Here are some interesting articles about UCP method: Software cost estimation using use case points: Getting use case transactions straight Dear Dr. Use Case: What About Function Points and Use Cases? Project Estimation with Use Case Points Use Case Points - An Estimation Approach Aufwandschätzung mit UseCasePoints (German) and... if you are a user of AndroMDA and MDA/MDSD in general don't forget to use the UCP cartridge from EJOSA . Have fun!

Google Wave and Open Wave Protocol

It's very interesting to see that Google tries to build a new email system: Open Wave Protocol . They could be successful since email protocol is just too old. Just take a look for example how people in Germany try to extend email to become secure: Bürgerportale . They try to stick to the old protocol and extend it with many extensions. Oh my dear...

Internet Identity Management 2.0 (OpenID, OAuth and co.)

I began to write an article series in german language about Internet Identity Management 2.0. In this series I will cover OpenID, OAuth and co. Also - as usual - I will take a look at some Java libraries which are made to implement the specifications of those technologies. This is the part one at Developer Channel : Internet-Identität und Datenaustausch heute - Nutzung und Möglichkeiten von OpenID und OAuth Enjoy reading! Lofi.

Product Line Software Engineering and Open Source Article in OBJEKTspektrum Magazine March/April 2009

At the end Frank and I managed to publish an article in OBJEKTspektrum magazine (March/April 2009) about PLSE in German language. In this article you can read the development of our software product line: ProMI... Produktlinien-Softwaretechnik mit Open-Source-Produkten "Mit der wachsenden Größe und Komplexität von IT-Systemen gewinnt die Wiederverwendung von Software immer mehr an Bedeutung. Hier versucht die Produktlinien-Softwaretechnik einen Beitrag zur Verbesserung der Wiederverwendung zu leiten. Anhand von praktischen Beispielen verdeutlicht dieser Artikel, wie Software-Produktlinien entstehen und mit Hilfe von Open-Source-Produkten einfach realisiert werden können. Zudem werden sieben "Best Practices" vorgestellt, die sinnvolle Unterstützung beim Einsatz der Produktlinien-Softwaretechnik geben." Have fun! Lofi.