/parking-lot

This project demonstrates the sample parking lot application that automates ticket booking in a single floor parking lot.

Primary LanguageJava

Parking Lot

This project demonstrates the sample parking lot application that automates ticket booking in a single floor parking lot.

This project uses Template, Command, Strategy and Factory design pattern.

Problem Statement

I own a parking lot that can hold up to 'n' cars at any given point in time. Each slot is given a number starting at 1 increasing with increasing distance from the entry point in steps of one. I want to create an automated ticketing system that allows my customers to use my parking lot without human intervention. When a car enters my parking lot, I want to have a ticket issued to the driver. The ticket issuing process includes us documenting the registration number (number plate) and the colour of the car and allocating an available parking slot to the car before actually handing over a ticket to the driver (we assume that our customers are nice enough to always park in the slots allocated to them). The customer should be allocated a parking slot which is nearest to the entry. At the exit the customer returns the ticket which then marks the slot they were using as being available. Due to government regulation, the system should provide me with the ability to find out:

● Registration numbers of all cars of a particular colour.

● Slot number in which a car with a given registration number is parked.

● Slot numbers of all slots where a car of a particular colour is parked.

We interact with the system via a simple set of commands which produce a specific output. Please take a look at the example below, which includes all the commands you need to support - they're self explanatory. The system should allow input in two ways. Just to clarify, the same codebase should support both modes of input - we don't want two distinct submissions.

  1. It should provide us with an interactive command prompt based shell where commands can be typed in
  2. It should accept a filename as a parameter at the command prompt and read the commands from that file

System Requirements

  1. Linux Operating System
  2. maven 3.x
  3. Java 8

Dependencies

Junit - 4.12

Install and Run

  1. Add executables to PATH variable
  • export PATH=$PATH:/home/ubuntu1/parking-lot/bin
  1. Make files executable:
  • Run chmod a+rwx on parking-lot/bin/setup and parking-lot/bin/setup
  1. Setup the project
  • Go to project folder (parking-lot)
  • Run bin/setup
  1. Run Program
  • Go to project folder (parking-lot)
  • For interactive mode: bin/parking-lot
  • For file mode: bin/parking-lot <file>

Usage

Following are the example commands
create_parking_lot 6
park KA-01-HH-1234 White
park KA-01-HH-9999 White
park KA-01-BB-0001 Black
park KA-01-HH-7777 Red
park KA-01-HH-2701 Blue
park KA-01-HH-3141 Black
leave 4
status
park KA-01-P-333 White
park DL-12-AA-9999 White
registration_numbers_for_cars_with_colour White
slot_numbers_for_cars_with_colour White
slot_number_for_registration_number KA-01-HH-3141
slot_number_for_registration_number MH-04-AY-1111