Streamgen: a UML-based tool for developing streaming applications.

Distributed streaming applications, i.e. applications that process massive and potentially infinite streams of data, are becoming increasingly popular in order to tame at the same time the velocity and the volume of Big Data. Designing and developing distributed streaming applications is currently difficult because it involves the employment of 1) complex programming paradigms to deal with the unboundedness of data streams together with 2) distributed streaming engines, each coming with its own APIs. To address the above shortcomings, in this tool demo paper we present StreamGen, a model-driven tool aiming at simplifying the development of distributed streaming applications. StreamGen provides (i) a UML profile to add streaming-specific concepts to standard UML Class Diagrams and (ii) a model-to-text transformation to automatically generate the application code starting from UML models.