Vehicles Exercise

Application that reads a JSON string from a URL, parse it into vehicle list, and produces output based on some criterias:

• Print a list of all the cars, in ascending price order, in the following format:

1. {Vehicle name} – {Price}

• Using a reference table, calculate the specification of the vehicles based on their SIPP. Print the specification out using the following format:

1. {Vehicle name} – {SIPP} – {Car type} – {Car type/doors} – {Transmission} – {Fuel} – {Air con}

• Print out the highest rated supplier per car type, descending order, in the following format:

1. {Vehicle name} – {Car type} – {Supplier} – {Rating}

• Give each vehicle a score based on the below breakdown, then combine this score with the suppliers rating. Print out a list of vehicles, ordered by the sum of the scores in descending order, in the following format:

1. {Vehicle name} – {Vehicle score} – {Supplier rating} – {Sum of scores}

Main classes

This Application is divided in 2 parts:

Part1 - A standalone Java console application, with the functionality to read a specified JSON file, parse and then perform the set tasks above on the parsed data. All tasks should be printed out to the console using System.out.

Represented by com.brunocarreira.vehicles.Part1App.java

Part2 - Using the code created in Part 1 extend the code to provide the output through a REST API.

Represented by com.brunocarreira.vehicles.Part2App.java

---

Instructions

Prerequisites

• Maven 3
• JDK 1.8
• IDE

Go to vehicles path and install the application jar and its dependencies in your local maven repository (Unit Tests and Integrations Tests will be executed):

mvn clean install

Executing Part1

Eclipse: Right click on Part1App.java > Run as > Java Application

Command line: mvn exec:exec -Ppart1

Executing Part2

mvn clean spring-boot:run

http://localhost:8080/vehicles/priceOrder

http://localhost:8080/vehicles/priceOrderJSON

http://localhost:8080/vehicles/sipp

http://localhost:8080/vehicles/sippJSON

http://localhost:8080/vehicles/highSupplier

http://localhost:8080/vehicles/highSupplierJSON

http://localhost:8080/vehicles/score

http://localhost:8080/vehicles/scoreJSON

Shutdown Spring Boot: http://localhost:8080/shutdown

Hint:

• To enable logs, comment the lines below, in application.properties:

logging.level.root=OFF

spring.main.banner-mode=off

---

Project Structure

Spring-boot was used to setup the project and organize into layers.

package com.brunocarreira.vehicles.services

• Contains the services components:

VehicleService - Implements the most important Business logic of the App. JsonDSService - JSON DataSource Service

package com.brunocarreira.vehicles.domain

• Domain Model (Entities if using JPA):

Search - Container class for Vehicles. Vehicle - POJO Object to store Vehicle

package com.brunocarreira.vehicles.dto

• POJOs used only for JSON REST responses (better bandwidth use):

VehicleHighSupplierDTO VehiclePriceDTO VehicleScoreDTO VehicleSIPPDTO

package com.brunocarreira.vehicles.resource

• Resource for REST endpoints:

VehicleResource

---

Tests

Spring-boot was also used to create Unit/Integration tests, using Mocks.

MockedVehicleServiceTest

Services and data were mocked to test the main functionality. The tests are simple and should be improved.

DataSourceTest

Check DataSource with the wrong URL.

VehicleResourceTest

Integration Test: Check REST Controllers response type and status.

VehicleServiceTest

Unit Test: Checking return of main functionality.