A Kotlin BitTorrent like client

This project was done during Software Design course at the Technion.

Authors

• Abir Shaked, 204596597
• Shahak Ben-Kalifa, 311242440

Key Features:

• Asynchronous programming using kotlin Future's
• Tested using JUnit
• Dependency injection and Mock's using Guice
• Built with Gradle

Implementation Summary

Our whole implementation is based on composing futures and combining while futures are not dependent, or not using the same resources, all the while without calling get() or join() outside the main. We added private fields, for everything that does not require persistence, e.g connected peers. We created persistent databases for storing data about pieces, connected peers, torrent files and others, in order to save those dataclasses, we updated our serialization using bencoder as well, to store an instance of the dataclass, as well as decoding bytearray inside data classes.

Testing Summary

In order to test the network based operations, we used a futuristic runAsync block in order to hold one side of a user or server side socket, and another in order to hold the app side. This way we simulated network communication over sockets and tested requests.