F. Scippacercola e E. Battista

[scippacercola]

Issue #314

Anpr-github-metrics is a JS client-side application that shows metrics on Issue Trackers, using a processing microservice in the backed.

• GUI Extensibility The JS application is based on Vue and is easily extensible for adding new plots and reports to the users.
• Virtualized environment The application communicates with a backend microservice (Dockerized on-the-go), to guarantee a stable and easy-to-set environment.
• Standard communication The communication uses a standard REST interface based on Swagger (See Swagger YAML Specification), to allow the system maintanability.
• Powerful frameworks The microservice runs in a Java SE Virtual Machine (it is not required a Java EE!) and exploites the services of Spring and Spring Boot.
• Maintainability and Extensibility The microservice adopts a compile-time plugin architecture:
  1. Currently implements analysis on GitHub, but can be extended to other issue tracker (e.g. BugZilla) in moments!.
  2. New plugins for computing new metrics can be easily added at compile-time and registered to the microservice.
• Designed with performance in mind The microservice uses a high-concurrent local time-cache (by using Google Guava Cache and Striped Locks) to improve the LRU queries. The caching is completely transparent to the plugins! (See how transparent caching has been implemented)
• Testability by design The application exploits strategies and design pattern to improve testability (unit and integration) preferring Inversion Of Control, Builders, Fluent APIs, and :over all: Readable code!