My Blog

Using ZK webui with Google App Engine

2011-09-22T11:23:00.000-07:00

There is a guide ZK Installation Guide/Setting_up_Servers/Google_App_Engine But following this guide with a latest (5.0.8) version of ZK will have no success. There was a change in org.zkoss.io.Serializables which don't allow to serialize objects into session. It's a requirement of GAE. To be able to use ZK on GAE you should use version 5.0.6 of ZK. Also there is important notice: All you listeners in Composer should be either Serializable or be stored in a transient variables.
You can view working example of this code here. This is default borderlayout sample with some changes. I've enabled GAE login functionality.
Sources are on Bitbucket.

Testing Liferay portlets

2011-04-08T03:17:00.000-07:00

Found a three nice articles about unit testing of [Liferay] portlets.

Focused on service testing - http://agile-reflections.opnworks.com/2010/06/portlet-unit-testing-with-liferay-6.html
About portlets testing including Selenium - https://projects.savoirfairelinux.com/projects/ctr-liferay/wiki/Portal_-_Testing?version=47
Generic portlets testing with portletUnit - http://www.ibm.com/developerworks/java/library/wa-portletunit/index.html?ca=drs-

Викикомментарий пользователя Vladimir

2011-04-07T00:56:00.001-07:00

Mobile device options library
раздел страницы: WURFL (открыть в Google ВикиКомментариях)

Enterprise development features for free

2011-04-06T00:39:00.001-07:00

Interesting Cloud project with support of Hudson/Jenkins starting with free price for minimal feature set. I've checked it behalf on ability to work with private Mercurial repositories on Bitbucket. It's possible but you should copy SSH key by enabling GIT as a version control system (there is generated key). Then by pasting this key into Bitbucket project settings you will enable CI for your private project.
CloudBees: Cloud Platform as a Service for Java Web Apps, Supported Jenkins/Hudson and Jenkins/Hudson in the Cloud (открыть в Google ВикиКомментариях)

ПрофСистема: Развёртывание Liferay 6.0 на Glassfish

2011-03-23T09:14:00.000-07:00

ПрофСистема: Развёртывание Liferay 6.0 на Glassfish: "В руководстве говорится, что для установки Liferay на Glassfish требуется war bundle. Однако на сайте этот тип пакета для скачивания не дост..."

Викикомментарий пользователя Vladimir

2011-03-23T01:32:00.001-07:00

Наконец-то хоть кто-то объяснил.
раздел страницы: Ubuntu: Перемещаем кнопки в заголовке окна направо | ITMD (открыть в Google ВикиКомментариях)

Top 10 Java Workflow Engine

2010-04-24T02:02:00.001-07:00

An overview of java workflow engines.
раздел страницы: Top 10 Java Workflow Engine (открыть в Google ВикиКомментариях)

Java Persistence Overview

2010-04-19T15:12:00.001-07:00

Interesting article covering a bunch of Java persisting technologies. Additionally it provides simple benchmarks. These benchmarks are rather illustrative than useful but it's illustrative enough.
раздел страницы: Considering Data Stores « Enigmastation.com (открыть в Google ВикиКомментариях)

Modularizing Existing Web Application with OSGi

2010-04-16T12:48:00.001-07:00

Today you can write a new web application and just run it with Equinox/Jetty or Felix http services. However, what if you need to keep evolving an existing web application and can't just stop and spend months rewriting everything to OSGi architecture? This article explores how you can build on an existing web application and adopt OSGi for web components without first having to rewrite the whole application. An example is provided using Tomcat 6 and Equinox.
раздел страницы: New Article: Modularizing Existing Web Applications With OSGi - TheServerSide.com (открыть в Google ВикиКомментариях)

Maven OSGi simplificatoin

2010-01-13T15:33:00.001-08:00

This framework really simplify project OSGi modules organization. Alternative is iPOJO.
раздел страницы: http://wiki.ops4j.org/display/ops4j/Open+Participation+Software+for+Java (открыть в Google ВикиКомментариях)

Why proprietary software is suxx?

2010-01-11T07:01:00.000-08:00

After working with some of proprietary software (Oracle, Tibco) I realized why it's suxx from developers point of view. All the features in such software are paid by customers. The money sucking companies will not do anything without payments. The enterprise customers don't want to pay for any features that don't relate to their needs. So, there is no convenience features, almost no community support, no support for standards for development tools (e.g. Oracle lack of support ANSI SQL).
So, there are a lot of "enterprise" features but no features for humans (developers, DBAs, ...). Thus, humans from ones side could consider such a software as a suxx just because there is nobody who can even try to make this software convenient.

Automatic UI generation with Metawidget

2010-01-11T01:53:00.001-08:00

Metawidget is a library that enables application to automatically generate UI for different backend models. For example it can generate web page with data fields required by business process defined in jBPM.
It can generate UI representation of a data using different technologies including:

Android
Google Web Toolkit (GWT)
Java Server Faces (JSF)
- Facelets
- ICEfaces
- RichFaces
- Tomahawk
Java Server Pages (JSP)
- DisplayTag
Spring Web MVC
Struts
Swing

Beans Binding (JSR 295)
Commons BeanUtils
JGoodies Validator
MigLayout
SwingX

раздел страницы: http://metawidget.org/ (открыть в Google ВикиКомментариях)

Scala Akka library

2010-01-10T11:56:00.001-08:00

Useful library implementing Scala Actors using alternate way. Includes implementation of distributed actors, failure managements (supervisors), transactions (software transactional memory - STM - and transactors)

раздел страницы: akka - home (открыть в Google ВикиКомментариях)

Metatrader on Linux

2010-01-10T09:43:00.000-08:00

There are several articles about installation of MetaTradeer on Linux but its seems outdated a bit. Here is my 5 cents to this theme.
To install MetaTrader you should :

Install wine
```
sudo apt-get install wine
```

Download winertricks

wget http://www.kegel.com/wine/winetricks

Install MFC42 and MS CoreFonts
```
sh winetricks corefonts mfc42
```
Download Metatrader (downloaded file will be named like forxmt4.exe)
Install MetaTrader from previously downloaded package (see 1)

Now it should works.

Computer language comparision

2010-01-09T13:40:00.001-08:00

This site provides a results of comparison of a wide range of programming languages: from C++ to Scala

раздел страницы: Computer Language Benchmarks Game (открыть в Google ВикиКомментариях)

Викикомментарий пользователя Vladimir

2010-01-09T07:54:00.001-08:00

Goog example of integration of Facebook with Google APIs.

http://www.ibm.com/developerworks/opensource/library/os-eclipse-facebook/index.html

раздел страницы: Develop a Facebook application with Eclipse Galileo (открыть в Google ВикиКомментариях)

Composite Oriented Programming

2009-12-26T12:32:00.000-08:00

There is interesting framework named Qi4j. It provides some interesting programming paradigm - Composite Oriented Programming (COP).

Seems like there are a ways to use COP for existing development approaches: Model Drive Design. I think it could be really natural to use COP for automatically generate code from UML models. Especially make a direct relationship between UML profile and composition aspects realization.
Scala. Seems like COP could be more naturally realized in Scala.

TIBCO General Interface Builder

2009-12-25T03:40:00.000-08:00

Interesting thing with TIBCO GI Builder. It provides 10 IDE features and 4 of them are following:

Really innovative features for IDE in 2010 :)

Rational Modeler

2009-12-24T11:08:00.000-08:00

Tried to evalute Rational Modeler for UML modeling and get following defalut dir for new project

AJAX and the Spring Framework with TIBCO General Interface | AJAX & RIA Journal

2009-12-15T06:10:00.000-08:00

AJAX and the Spring Framework with TIBCO General Interface | AJAX & RIA Journal

JEE base NIO architecure.

2009-12-11T12:35:00.001-08:00

Interesting approach to increase scalability of JEE server - Grizzly NIO. It promises good scalability even at design stage.
Architecture described here http://weblogs.java.net/blog/2006/01/26/grizzly-nio-architecture-part-ii

раздел страницы: Grizzly NIO Architecture: part II | Java.net (открыть в Google ВикиКомментариях)

Enterprise Sign-On Engine

2009-11-30T14:13:00.001-08:00

Nice technology to implement SSO. As result of improvement of this open-source project there is another solution which allow to use enterprise authentication for Google Web Services http://intient.com/opensource

in reference to: Enterprise Sign-On Engine - ESOE Features - ESOE Project (view on Google Sidewiki)

SOA and UML

2009-11-29T07:58:00.001-08:00

Useful article about represenation of SOA components using UML.

in reference to: Using UML service components to represent the SOA architecture pattern (view on Google Sidewiki)

Portlet bridge

2009-11-24T22:18:00.001-08:00

Exadel JSF Portlet bridge examples working on Liferay. http://exadel.com/web/portal/download/liferaydemo

SOA in UML

2009-11-24T22:15:00.001-08:00

Nice article at developerWorks providing a bridge between UML and SOA.