Easy way to Mock REST services


Caution with Java Autoboxing


Experimenting new blog

I'm experimenting a new blog powered by Hugo static site generation at http://sandarenu.github.io . Have a look and give your feedback....

Simple Introduction to Scalaz

Scalaz is a great library to make your Scala code more compact and to reduce some boilerplates. But getting started with it requires considerable effort. With its large collection of different operator and very functional nature most people are afraid to use it. Specially for people like me who are with more imperative programming background, it is not easy to get familiar with scalaz.

Recently InfoQ published a presentation named "Scalaz for Rest of us" by Adam Rosien, which introduces some basic building blocks of scalaz. Explanations are really simple and will help you to shed your fears on scalaz.


Trying out Eclipse Kepler

Yesterday I downloaded the new version of Eclipse IDE; Eclipse Kepler.

So far the experience is great. It is much faster than Juno. Main problem I had with Juno is that it is damn slow even with the updates provided later by eclipse to fix the slowness issue. But Kepler seems to have fixed all those issues properly.

Most notable improvement for me so far is the improved Eclipse Marketplace. Now we can select multiple plugins once and do the installation together.  Previously we had to install plugins one-by-one. And also conflict resolution related to plugin installation had been improved. Previously when there is a conflict, eclipse only tell that installation cannot be completed, but now it says exactly which plugin causes the problem and gives option to continue installation without it.

One problem I had was that there is no official support for Scala-IDE for Kepler. But managed to find a scala-ide build from scala-ide google group. It was working fine, so until official version is available I'll be able servile with it.

Alternative for Google Reader, Feedly

Google has announced that they are going to discontinue Google Reader from 1st of July 2013. It is really sad news since I use reader everyday to keep up-to-date with various blogs.

After seeing this news, first thing I wanted to do was to find and alternative. First one I came across is Feedly.  It is a web based reader and has plugins for chrome, firefox, safari and apps for android and iOS. Best thing with Feedly is that you can login with Google account and it will automatically import all your feeds from Reader. After getting used to the UI, it seems to be really nice tool. For the moment I'm going to use Feedly.

I'm also thinking about finding a good desktop reader as well. Since I'm using Linux there are lot of readers available. Have to try some and find a good one. 

Changing System Time in Xen VM

Yesterday I wanted to change the system time in one of our test servers. Server was a Xen VM running redhat linux.  I used date --set="20 Dec 2012 00:30:00" command, but when I checked the date again it showed the previous date not the date I've set using date command. 

After doing some searching I found out that by default VM clock is synchronized with its host Xen Server; so changing date is not possible. We need to disable this time synchronization before updating date in the VM. To do that I had to execute following command in VM linux console.
/sbin/sysctl -e xen.independent_wallclock=1

After that I was able to change the system time using date command.


Tribune to Heros

Tribune to Heros
We will never forget the sacrifices you made to protect our country....


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