Blogs

In one of the recent use case, we had to implement a complex event processing in real time mode. Storm is used as real time processing engine, but since It doesn’t provide batching of events therefore we took upon Esper to do the required job. Esper can be thought as a complex event processing (CEP) […]

Big Data has witnessed a tremendous movement and growth over the last couple of years. As per the top research agencies, Big Data has recently emerged as the most successful “launch pad”,   giving a way to the maximum number of start-up ever.  As the space evolves further, more and more organizations of varied sizes and discrete domains […]

VPN provides a solution to connect the company resources (servers or data) present inside a private network or located at physically far-away location over a private, secure, and reliable network channel at a lower cost than that of setting up a dedicated leased line to accomplish the same task. Introduction to OpenVPN Developed in 2002 […]

Google Play allows max 50 MB of APK size for any android application. But in many cases in projects where we use large number of images and media files such as sound and videos, the APK size grows beyond 50 MB limit. Google play now provide facility of uploading two more files called “APK Expansion Files”. Each […]

We’ve been talking about it for a while and finally GrailsConf 2015 went fabulously well. It was an amazing conference, packed with sessions from an eminent lineup of speakers and over 160 participants who gathered at The Indian Habitat Centre, New Delhi. The gathering was of mostly Java and Groovy developers. I noticed many Java […]

To a beginner writing unit tests may seem to be an overhead and a low productive affair. But this could be due to the way he chooses to write tests. One can quite easily be productive at writing unit test cases as well. Following are a few things that I follow to write the spock […]