Test for Deutche Bank

I would like to highlight a few points:

Were used Java11, SpringBoot
class Algo and interface SignalHandler were moved to a separate library as .jar
There are two layers of the application : SignalController - controller, AlgoServiceImpl - main service, that handles signals
As there were no requirements on what to do, when smth except 1-3 is requested, exception is throwed ( this is a good question, that i had to ask :) )

Each signal is associated with one service by an enum, which holds the number of a signal. As there can be thousands of such signals (and enums), enums can be divided by groups (I created AwesomeGroup for signal 1, 2 and PerfectGroup, ofc there should more approparete names of such groups depending of logic of algorithms). This was made possible by inheritance of interface SignalNumber by enums. Static final field usedNumbers in the interface SignalNumber that is thread safe HashSet helps to detect if more than one service assosiated with a signal.
All services that handle signals are autowired to the main service AlgoServiceImpl and tranfered to the map. It helps to find a necessary service with O(1).

P.S. Unfortunately, I don't have enough time to add unit tests, even though I understand how important they are :(

Aksumar/DbTest