/CookieTask

Java application processes a cookie log file and returns the most active cookie(s) for a specific date

Primary LanguageJava

Most-active-cookie

This Java application processes a cookie log file and returns the most active cookie(s) for a specific date. The project is built using Spring Boot and Maven, and it is designed with an object-oriented, extendable architecture. The command-line interface allows users to specify the log file and the date for which they want to find the most active cookie(s).

Example

Given a cookie log file in the following format:

cookie,timestamp
AtY0laUfhglK3lC7,2018-12-09T14:19:00+00:00
SAZuXPGUrfbcn5UA,2018-12-09T10:13:00+00:00
5UAVanZf6UtGyKVS,2018-12-09T07:25:00+00:00
AtY0laUfhglK3lC7,2018-12-09T06:19:00+00:00
SAZuXPGUrfbcn5UA,2018-12-08T22:03:00+00:00
4sMM2LxV07bPJzwf,2018-12-08T21:30:00+00:00
fbcn5UAVanZf6UtG,2018-12-08T09:30:00+00:00
4sMM2LxV07bPJzwf,2018-12-07T23:30:00+00:00

and we would like to obtain the most active cookie for 9th Dec 2018, by using the command like this

$ ./[command] -f cookie_log.csv -d 2018-12-09

And it would write to console:

AtY0laUfhglK3lC7

Assumptions

  • If multiple cookies meet that criteria, return all of them on separate lines.
  • Only use additional libraries for testing, logging and cli-parsing.
  • assume -d parameter takes date in UTC time zone.
  • have enough memory to store the contents of the whole file.
  • Cookies in the log file are sorted by timestamp (most recent occurrence is the first line of the file).

Features

  • Command-line Interface: Easily specify the log file and the date.
  • Most Active Cookie: Find the most active cookie(s) for a specified date.
  • Extendable Architecture: Easily add new features or commands.
  • Error Handling: Robust error handling for file parsing and invalid inputs.

Prerequisites

  • Java 8 or higher
  • Maven 3.6 or higher

Installation

  1. Clone the repository:

    git clone https://github.com/yourusername/most-active-cookie.git
cd most-active-cookie

  2. Build the project:

    mvn clean install

Usage

To run the application, use the following command:

java -jar target/cookie-0.0.1-SNAPSHOT.jar -f <log-file-name> -d <date>

Note: the log file should be added under resources/logs folder to be accessable

Example

If your cookie_log.csv file is located in the resources\logs directory and you want to find the most active cookie(s) for December 9, 2018, use:

java -jar target/cookie-0.0.1-SNAPSHOT.jar -f cookie_log.csv -d 2018-12-09

Testing

To run the tests, use the following command:

mvn test

The project includes unit tests for the key components to ensure correctness and reliability.