marcoantoniocorallo / jobscheduler-framework

Framework for job scheduling and processing - Advanced Programming assignment

JobScheduler-Framework

Advanced Programming assignment that requires to implement a simple software framework providing the functionalities of a job scheduler, but ignoring the aspects of parallelism and distribution.

More precisely, the framework includes an emitter of jobs, a compute phase executing the jobs, a collect stage grouping them, and an output action printing the results in a suitable format. As a proof of concept, a simple working instance of the framework has been implemented as well.

The framework is generic, uses jstreams and implements the concept of Inversion of Control through the Template Method design pattern. The framework code is into the class JobScheduler, that provides the template method (main), two frozen spots (collect, compute) and two hot spots to redefine in concrete classes (emit, output). The jobs to compute must be instances of the abstract class AJob.java, containing the abstract method execute().

As proof of concept, a concrete class that use this framework has been provided in the file AnagramsCounterScheduler, that implements the hot spots. This implementation schedules and computes AnagramsCounter jobs.

To use the framework, just pass the concrete class name as argument.