Mehmet Ali Ertürk » Java

RXTX PortInUseException on Mac OSX

admin — Sat, 26 Nov 2011 11:47:35 +0000

This was my first serial programming experience on Mac OS X with Java and it was painful. There is no official library for Java for writing/reading from serial interface. Open source libraries available but those depends on OS, and OS architecture and java versions. After required libs installed, I had to get list of all port on my mac using rxtx however, had to deal with with PortInUseException while opening a port. Thanks to this guy; solution is to set up a folder and required permissions at location /var/lock, then everything went very well.

After a few years I returned back to java, it still same java nothing much here I can handle it.

A Delayed Post

admin — Thu, 09 Jul 2009 09:15:10 +0000

I don’t know why it takes so long to post something but significant things happened in last few weeks which made my entire life to change. I’m not going to share it at the moment, may be in time.

So, I want to mention some events that I wanted to write about but I couldn’t.
JavaDay Istanbul ’09, yes, I was there and events were based on JavaFX as JavaOne ’09. Some photos from the day.

I liked touch wall (I made this word) JavaFX demonstration, it was funny and I also, admired the women who has spoken very fast and without any break in one hour about mysql.

I know, many things happened about technology but the last one is Google Chrome OS. An OS with annoying features for Microsoft and Apple. I support you guys go ahead you really force some old guys to improve their products like Microsoft IE.

Google Chrome OS: Will It Kill Windows? (mashable.com)
Google Chrome OS To Challenge Microsoft Windows On Netbooks (oliverwillis.com)
Google introducing the Chrome OS (dvorak.org)

Software Development & Deployment with Google App Engine

admin — Mon, 27 Apr 2009 14:45:57 +0000

I have been developing applications for 5 years and worked on wide range of programming languages and platforms. If we exclude my undergraduate studies (like; tiny applications working on embedded devices or cross platform compiled iphone apps … etc.) briefly my experience on software development;

php on unix/linux
java/j2ee using hibernate on unix/linux
java/jee using glassfish on unix/linux
asp/asp.net on windows
python using django unix/linux
python using django on google app engine

So, far I have dealt with many programming languages, platforms and most of them have painful development/deployment processes except one. Google App Engine is the only platform that I have never had problems with software deployment. I doesn’t matter which box you have (mac, win, linux ..etc) for development, deployed application works as it in your local. You don’t have to worry about changes about model, app engine handles it smoothly. It is amazing. I have never seen such a thing before. Even I had problems with php but not with app engine. That’s why Google like companies must exits, they are the real innovators.

Oracle to Buy Sun For $7.4 Billion

admin — Mon, 20 Apr 2009 12:54:22 +0000

I shocked when I saw this news about Oracle to Buy Sun. Now, I feel more comfortable for switching from Java to Python. Now, I have to switch from MySQL to postgresql. I hope Oracle will pay more attention to … Continue reading →

Tell Me Again, What was The Semantic Web?

admin — Wed, 11 Mar 2009 22:28:56 +0000

My semantic web interest is almost two years old however, I haven’t focused it enough till this year. It was something like a magazine or a blog that I like to read or follow but never involved. Somehow, my viewpoint on semantic web extremely changed and I’ve started scientific (also business) researches on semantic web.

Today, I felt much better when I saw the following videos. It was a right choice to make investments on semantic web. I hope, it will much better… Thanks Cas for sharing these nice videos:

Future Internet Video from Castemelijn on Vimeo

Impressed Kevin Kelly’s presentation and the quote about web: “Have to get better in believing the impossible”

Tomorrow, I have a meeting with my advisers about Semantic Web for P2P networks and if it goes successfully, I’ll start build my project in the following weeks. First, I want to up and running simplest p2p network in my local machine using twisted on python or jxta on java. Then give this thing a mining: semantic …

Linux vs. Windows Conflict

admin — Fri, 06 Feb 2009 08:19:31 +0000

Since we moved to our new office with new company and additional staff, we’ve switched our platform from JEE on Linux to asp.net on Windows because D&D is easy to use which I completely disagree. Today one of the developers in the office noticed that our .net development server is down. It is used for development and test purposes (manual tests). It is crashed despite having better hardware when compared our old servers which is not a server (we build it with oem products) and it is running Fedora and still up and serves well. Windows box is broken, having power issues but Linux box is still up for 408 days. What a conflict!!! Linux box with poor hardware having better performance and robust when compared better windows box with better hardware (designed for servers).

Man, .net really sucks … I already know it but .Net developers prove it.

JDK 1.6 Update 10

admin — Thu, 16 Oct 2008 16:33:00 +0000

I have been waiting for JDK 1.6 Update 10. I hope it meets my expectations.

Netbeans Day

admin — Tue, 10 Jun 2008 20:27:00 +0000

Today, I attended the Netbeans Day Istanbul that is held by Sun Microsystems Türkiye at Sun Plaza. Even frequently changes in the agenda event was fine. Also I met Roman Strobl who is working at Netbeans project and asked him how to use multiple persistence units in the same project and the answer was “one of our guys dealing with it “

I learnt some new cool feature of Netbeans such as copy and past the line you have just typed using Ctrl+Shift+Down.

Now waiting for the new exciting Java events …

Php persistence tools

admin — Tue, 13 May 2008 20:34:00 +0000

I wonder if there are any powerful persistence tools for Php like JPA in Java

Glassfish + MySQL

admin — Thu, 01 May 2008 07:27:00 +0000

Sun contributes Glassfish + MySQL bundle in JEE download section at sun.com.