Category Archives: Architecture

KnolX Session: Testing Akka Actors Using TestKit

Posted on April 27, 2013 by

In the presentation which is the part of our ongoing Knolx session, we discussed about how to test Akka actors using Testkit. By using testkit we can test Actor’s behaviour, apply time assertions on actor’s reply and we can also … Continue reading →

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Efficiently using Session & Flash in Play framework

Posted on March 4, 2013 by

Play framework is being the love of every Scala developer now a days. In this post we’ll learn about using Session & Flash scopes in Play framework. Play has a stateless architecture so in order to keep the data across … Continue reading →

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ATDD, Generating random tests with ScalaCheck

Posted on February 12, 2013 by

Further, in our series on Acceptance Test Driven Development, we would look at generating random test values with the ScalaCheck framework. In our last post we looked at, how we make our test logic respect the DRY principle by defining … Continue reading →

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Parallel Collections in Scala

Posted on August 6, 2012 by

As multi-core becomes a standard, writing code which can harness the power of the cores remains a formidable challenge. The following KnolX session, tried to decode how scala is trying to give us an advantage by providing us parallel collections. … Continue reading →

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Providing a “Sign-in with Google” functionality using Scala

Posted on August 2, 2012 by

Continuing our series on providing authentication via third party OAuth/Open ID providers, in this post we look at Google. We have already covered sign in with Facebook and Sign in with Twitter in the past. We walk through a step … Continue reading →

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Building Massively Scalable Applications with Akka 2.0

Posted on July 18, 2012 by

Recently Knoldus, presented at the IndicThreads conference, New Delhi on the power of Akka 2.0. The case study involved a demonstration on how a major white goods company is able to analyse their social feeds in real time and respond … Continue reading →

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Harnessing the Power of Nutch with Scala

Posted on July 18, 2012 by

Knoldus was recently speaking at the IndicThreads conference in New Delhi, India. Here, we talked about Nutch and how easy it was for us to integrate it with Scala and build a scalable web crawler with less than 900 lines … Continue reading →

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Intercepting Nutch Crawl Flow with a Scala Plugin

Posted on March 14, 2012 by

Apache Nutch, is an open source web search project. One of the interesting things that it can be used for is a crawler. The interesting thing about Nutch is that it provides several extension points through which we can plugin … Continue reading →

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AMQP and AKKA

Posted on September 15, 2011 by

AMQP is a message protocol that deals with publishers and consumers. It would look a lot like JMS but it is not. The main entities are Exchanges, Queues and Bindings. Look at the following diagram So a producer would send … Continue reading →

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Building a Plugin Based Architecture in Scala

Posted on September 15, 2011 by

A plugin based architecture has many advantages. Some of the common ones include Extending an application’s functionality without compiling it again Adding functionality without requiring access to the original source code. Replacing or adding new functionality becomes easy Help in … Continue reading →

Posted in Architecture, Scala | Tagged , | 1 Comment