For this exercise you MUST use the following technologies:
Java 8 (lambda expressions, stream etc.)
Maven 3.6.*
Spring Boot 2.3.5.RELEASE
Spring data
Junit test 4.*
You will need to implement a Walt app system.
Walt is an on-line food delivery service.
Walt works with different restaurants, each restaurant has it: Name City Address
The company has driver list, for each driver the system saves: Name City
When customers order, they must provide: Name, City, Address, Time of delivery, Restaurant to deliver from. They can only choose restaurants in the city they live in.
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Write a service to create a delivery and assign an available driver for delivery, driver should be picked if he/she lives in the same city of the restaurant & customer, he/she has no other delivery at the same time. If more than one driver is available assign it to the least busy driver according to the driver history
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When assigning a delivery, save the distance from the restaurant to the customer, for this purpose the distance will be random number between 0-20 Km
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Walt want to rank the drivers based on their total distance they did for deliveries. Please provide a detailed report to display the drivers name and the total distance of delivery order by total distance in descending order
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Provide same report as No. 3 in specific city
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Add Junit tests to test your work
Assumptions:
- Each drive takes a full hour – it will start and end in a full hour (no need to calculate minutes)
- Since distance is randomized on delivery, deliveries from same restaurant to same customer can be different in each delivery
- If no available driver in city – provide proper error message
- When a customer place an order, you can assume the Restaurant exist in the system, customer may or may not exist
Important notes:
- Make sure to import the project as Maven project
- WaltTest is configured with basic data, you may use it
- Model, Repositories are implemented, you may add any additional class, repository or service
- Just to be clear, you are required to implement the interface: WaltService
Good-luck!