If you have an experience in data extraction systems, you know how hard it could be to develop. You need to implement workers then combine them in error-prone, scalable and flexible system. Sounds like a lot of pain, isn’t it? But with modern painkillers the job could be done much simpler. I mean Akka.
In less than 100 lines of code we got fully scalable recurrent data extraction example with simple logging and error handling. And as Akka is a close friend of Play 2.x framework, to say more preciously, Play includes Akka, it's easy to build Web Application on top of our system.