ScoreCalculator

Given a set of JSON objects (in a file is fine), for each unique ID field show the unique IPs associated with it and the number of times that IP appeared. Also, sum the score for that ID. Make no assumptions about the incoming JSON.

Example input:

{"id":"test","score":12,"ip":"1.2.3.4","message":"Hi"}

{"id":"test","score":5,"ip":"1.2.3.5"}

{"id":"test","score":17,"ip":"1.2.3.4"}

{"id":"test2","score":9,"ip":"1.2.3.4"}

Example output:

test:

1.2.3.5: 1

1.2.3.4: 2

score: 34

test2:

1.2.3.4: 1

score: 9

Goal: Design and implement both the program to accomplish this, and the script to test the program in Java.

Assumptions:

1. If id is null, skip the entire result object
2. If ip is null or not in valid format (IPv4 or IPv6), skip the entire result object
3. Score is an integer
4. If score is null or less than 0, skip the entire result object
5. Extra fields from JSON are ignored (fields that are not "id", "ip" and "score")