Wind across SEA

tag:blogger.com,1999:blog-126710882011-12-13T19:54:46.118-08:00Wind across SEASome random thoughts.Yan Wenghttp://www.blogger.com/profile/01465533683194195764noreply@blogger.comBlogger181100tag:blogger.com,1999:blog-12671088.post-1140302192599861442006-02-18T14:18:00.000-08:002006-02-18T15:28:10.250-08:00A prototype of Jython ScriptFactory for Spring Framework

SpringFramework 2.0 M2 does not include Jython support for its scripting framework. I don't know the reason. So I decide to create a prototype to prove it is doable.Suppose we have a Java interface Messenger:package org.yweng.spike.Spring;public interface Messenger { String getMessage();}And we have a Jython Script, Messenger.py, which implementes this interface:from org.yweng.spike.Spring

Yan Wenghttp://www.blogger.com/profile/01465533683194195764noreply@blogger.com2tag:blogger.com,1999:blog-12671088.post-1139697614243473182006-02-11T13:48:00.000-08:002006-02-11T14:44:43.013-08:00The new Perforce Eclipse plugin

We had a lot of trouble with the "stable" version of the Perforce Eclipse Plugin (P4WSAD) in the past weeks. It mainly dues to the heavy load of our perforce servers and the "keep connected" nature of the perforce plugin. We were facing very long response time when we refactored our java code base. Because Eclipse's built-in refactoring does not do "p4 edit" on the files it modifies, we also have

Yan Wenghttp://www.blogger.com/profile/01465533683194195764noreply@blogger.com0tag:blogger.com,1999:blog-12671088.post-1139478041841977072006-02-09T01:31:00.000-08:002006-02-09T01:40:41.856-08:00Borland is going to sell its most valuable product line

Borland made another interesting decision: selling its famous development tools product line. Without Delphi, C++ builder, JBuilder and Interbase, is Borland "the Borland" we were talking about?

Yan Wenghttp://www.blogger.com/profile/01465533683194195764noreply@blogger.com0tag:blogger.com,1999:blog-12671088.post-1129363031530002362005-10-15T00:57:00.000-07:002005-10-15T00:57:11.566-07:00Convert MSIL to Java bytecode

Grasshopper is a patent-pending compiler that compiles MSIL into java byte code. Nice solution for portability.

Yan Wenghttp://www.blogger.com/profile/01465533683194195764noreply@blogger.com0tag:blogger.com,1999:blog-12671088.post-1128907432509510272005-10-09T18:23:00.000-07:002005-10-09T18:25:00.750-07:00The Anatomy of a Search Engine

The Anatomy of a Search Engine explains google's motivation and initial architecture. Besides learning good concepts such as PageRank and Anchor Text, I finally know what role Python plays in the in google's early days: The URL Server and the web crawlers. :)

Yan Wenghttp://www.blogger.com/profile/01465533683194195764noreply@blogger.com0tag:blogger.com,1999:blog-12671088.post-1128813414091067462005-10-08T14:37:00.000-07:002005-10-08T16:20:05.360-07:00Eclipse CDT 3.0 test drive

I have used CDT 2.0 before and I felt it was not ready for big projects. Now the new CDT 3.0 has been out for a while. I already saw several reviews online talking about it. One of them is from Robert O'Callahan. He was trying to use CDT 3.0 against Mozilla code base. He mentioned that he actually managed to index most of the Mozilla and get code complete work. This is impressive considering the

Yan Wenghttp://www.blogger.com/profile/01465533683194195764noreply@blogger.com0tag:blogger.com,1999:blog-12671088.post-1127593598217949692005-09-24T13:26:00.000-07:002005-09-24T13:33:53.913-07:00Install Skype on Fedora Core 4 | de-generationx.net

A good trick, you can use the fedora core 3 version skype rpm.

Yan Wenghttp://www.blogger.com/profile/01465533683194195764noreply@blogger.com0tag:blogger.com,1999:blog-12671088.post-1127369330243794362005-09-21T23:08:00.000-07:002005-09-22T22:32:04.223-07:00Install XPlanner 0.7 beta 1

I have been used xplanner 0.6.2 for about a year. And I am pretty happy about it. Yeah, I like this small XP tool.Yesterday, I found there was a new beta release available. So I decide to give it a try. The release is called 0.7 beta 1. And two versions of binaries are available. The "Standalone" one includes Tomcat and HSQLDB and preconfigured. Another one includes ant and SQL scripts so that

Yan Wenghttp://www.blogger.com/profile/01465533683194195764noreply@blogger.com0tag:blogger.com,1999:blog-12671088.post-1127350586329545862005-09-21T17:56:00.000-07:002005-09-21T17:56:26.333-07:00Cameron Purdy talks about GC

In hig blog: "Cameron Purdy", Cameron Purdy shows his ideas on how to localize gc to avoid high GC latency.

Yan Wenghttp://www.blogger.com/profile/01465533683194195764noreply@blogger.com0tag:blogger.com,1999:blog-12671088.post-1127349899353166422005-09-21T17:44:00.000-07:002005-09-21T17:44:59.356-07:00PySubMind

PySubMind uses tag in wiki. It addes keyword (tag) search to wiki, which is a small but very useful extenstion to wiki. Typical wiki only has "Title based search" and "free text search", "Tag based search" will definitely make search experience more joyful. It's a so natual add-on, just like the keyword in papers. Should we add "abstract" based search to PySubMind, which will make it more useful

Yan Wenghttp://www.blogger.com/profile/01465533683194195764noreply@blogger.com0tag:blogger.com,1999:blog-12671088.post-1127348845960225632005-09-21T17:27:00.000-07:002005-09-21T17:27:26.020-07:00Slashdot | TeraGrid Gets an Upgrade

Good to know: Slashdot | TeraGrid Gets an Upgrade: UC really does great job in grid computing area. Their Globus Toolkit is getting more flexible and powerful.

Yan Wenghttp://www.blogger.com/profile/01465533683194195764noreply@blogger.com0tag:blogger.com,1999:blog-12671088.post-1127290067475532062005-09-21T01:03:00.000-07:002005-09-21T01:08:16.966-07:00Retroweaver: Develop with Java 1.5 and deploy with Java 1.4

Just found Retroweaver, a nice bytecode weaver to convert java 1.5 binary to 1.4 binary.

Yan Wenghttp://www.blogger.com/profile/01465533683194195764noreply@blogger.com0tag:blogger.com,1999:blog-12671088.post-1127282806135637382005-09-20T21:58:00.000-07:002005-09-21T12:18:24.690-07:00Hibernate, ActiveRecord and SQLObject

O/R mapping is still a hot topic. For Java developers, Hibernate is a very good choice. It's relatively easy and very powerful. Recently, dynamic programming language users claim they have some even easier solutions to accomplish the same task.Active Record is an O/R mapping tool written in Ruby. It's also a important component of the HOT "Rails" framework. David Heinemeier Hansson, the author

Yan Wenghttp://www.blogger.com/profile/01465533683194195764noreply@blogger.com2tag:blogger.com,1999:blog-12671088.post-1127278448131386992005-09-20T21:30:00.000-07:002005-09-20T21:58:35.023-07:00Set up: Lighthttpd, fastcgi and Python

Lighthttpd is a light weight web server which runs insanely fast. By using fastcgi and wsgi with this high performance web server, python web applications can achieve good performance and productivity at the same time.There are two good articles I found online showing us how to run python fastcgi scripts behind lighthttpd. One is "Python, FastCGI, WSGI and lighthttpd". Some comments of this

Yan Wenghttp://www.blogger.com/profile/01465533683194195764noreply@blogger.com0tag:blogger.com,1999:blog-12671088.post-1127205876086555612005-09-20T01:26:00.000-07:002005-09-20T23:17:39.113-07:00Nice blog talking about build system

Noel Llopis wrote a very good article, "The Quest for the Perfect Build System", on build system. He also did some benchmark on the build system. The result is interesting. Ant looks like a good choice. :)

Yan Wenghttp://www.blogger.com/profile/01465533683194195764noreply@blogger.com0tag:blogger.com,1999:blog-12671088.post-1127204753763317972005-09-20T00:14:00.000-07:002005-09-20T01:25:53.770-07:00TurboGears and ActiveGrid

TurboGears:TurboGears is a rapid web development framework written in Python. Using SQLObject, Kid and Cheerpy, it gains the development speed of Rails. I decided to give it a try. The joyful installation process is joyful. And the test wiki site starts instantly after I typed a simple command.The features it provides can certainly fulfill the requirements of my hobby projects. However, just as

Yan Wenghttp://www.blogger.com/profile/01465533683194195764noreply@blogger.com0tag:blogger.com,1999:blog-12671088.post-1127015204901126052005-09-17T20:23:00.000-07:002005-09-17T21:10:38.630-07:00Python wrapper tool performance

There are a few python wrapper tools available now, such as Boost.Python, SWIG and SIP. Both Boost.Python and SWIG provide good template support and are fairly easy to use. Then which one bring us less performance penalty?R. Geus gave a talk on this topic, named "Python Wrapper Tools; a Performance Study", at EuroPython 2004 conference. Here is the link of the PDF file. Surprisingly, Code

Yan Wenghttp://www.blogger.com/profile/01465533683194195764noreply@blogger.com0tag:blogger.com,1999:blog-12671088.post-1115307891878485982005-05-05T07:57:00.000-07:002005-09-17T20:19:30.210-07:00How is the performance of PostgreSQL 8?

PostgreSQL 8.0 has been released for several months. How is its performance comparing with the famous "light weight database"- MySQL?Historically, Mysql claims faster than PostgreSQL. How about now?I found serveral interesting articles online.PostgreSQL 8.0 vs. MySQL 4.1 (JDBC based benchmark focusing on OLTP)The result shows that MySQL 4.1 is faster than PostgreSQL. However, I noticed: The "

Yan Wenghttp://www.blogger.com/profile/01465533683194195764noreply@blogger.com0