arturopala/baseball-game-exercise

Conceptual component to study normalisation of streamed game events using baseball example.

Baseball Game Exercise

Conceptual component to study normalization of streamed game events using baseball example.

Component requirements

• have method to receive game event
• have method to report recent game event
• have method to report all or selected number of game events in reverse order
• try best to normalize inconsistent events

Game events normalization rules

• reject events where match time is negative
• reject events where team number is not 0 nor 1
• for first event in the game:
  • if scored points greater than zero then recalculate match score
  • else if match score shows that only one team scored than recalculate points scored and who scored
  • else if match score is (0,0) and no points scored (empty event) then reject event
  • otherwise leave event as is
• for subsequent events:
  • if scored points gt zero then recalculate match score
  • otherwise calculate delta from previous match score and:
    • if delta shows that none team scored then reject event
    • else if delta shows that both teams scored then reject event
    • else if delta shows that only one team scored then recalculate points scored and who scored
    • otherwise reject event

Build

• Run sbt compile
• Test sbt test
• Test with coverage sbt coverage test coverageReport