Logs Parser App (Test Exercise)

Introduction:

Abstract

We have a public leak file that we need to process to be able to ingest that information into our system. To solve this problem, you need to develop a program that will ingest a text file and return output as specified bellow, and write that output to STDOUT. The input file represents a list of places and people at different times. There are two distinct formats mixed in the same file.

Disclaimer

Names and ID's are completely randomly generated with an online tool. Any possible match it's just a coincidence.

Format details

1. Each line starts with F or D.
2. If F, this is a "format" line and two formats can be provided (1 or 2).
3. If D, this is a "data" line whose format is defined by the closest above format line.
4. If "F1" is specified, you can expect these fields separated with a comma: a. D defining a data line b. Name and surname c. City d. ID formatted as "12345678Z"
5. If "F2" is specified, you can expect these fields separated with space-semicolon-space: a. D defining a data line b. Name and surname c. City d. ID formatted as "12345678-Z" Commands to support
6. java -jar application.jar {FILE} CITY {CITY_NAME} → Will print the list of names and ID's belonging to people that have been in that city
7. java -jar application.jar {FILE} ID {ID_VALUE} (ID format example for input: 12345678Z) → Will print the list of cities that this person has been to.

Use Cases:

Resource: "./classes/data.txt"

Program input:

java -jar file-parser-app-1.0-SNAPSHOT.jar "./classes/data.txt" "ID" "25384390A"
java -jar file-parser-app-1.0-SNAPSHOT.jar "./classes/data.txt" "ID" "25384390-A"

Output:

    [{id: 25384390A, name: Mitchell Newton, city: SAN FRANCISCO}]
    [{id: 25384390-A, name: Mitchell Newton, city: LAS VEGAS}]

Program input:

java -jar file-parser-app-1.0-SNAPSHOT.jar "./classes/data.txt" "CITY" "BARCELONA"

Output:

[
    {id: 93654902Y, name: Erica Burns, city: BARCELONA}, 
    {id: 44340637H, name: Renee Anderson, city: BARCELONA}, 
    {id: 04217040J, name: Lowell Miles, city: BARCELONA}, 
    {id: 69429384C, name: Russell Pope, city: BARCELONA}, 
    {id: 54808168L, name: Shelley Payne, city: BARCELONA}, 
    {id: 10863096N, name: Johnathan Cooper, city: BARCELONA}, 
    {id: 58204706D, name: Peter Daniel, city: BARCELONA}, 
    {id: 84604786E, name: Ruben Daniels, city: BARCELONA}, 
    {id: 23803975X, name: Emilio Warner, city: BARCELONA}
]