Geo Distance Invitation List

Problem Statement

Summary

There is a list of customers, each having

• customer ID
• latitude
• longitude
• name

We need to find all customers within 100KM radius of Dublin office, and order them by their customer ID so that we can send them invitations

Specifications

Dataset: customers.txt located in

src/main/resources/customers.txt

User object format

{"latitude": "54.1225", "user_id": 27, "name": "Enid Gallagher", "longitude": "-8.143333"}

Solution

Technologies

• Language Used: Kotlin
• JSON (de)serialization: kotlinx.serialization
• Build System: Gradle

Requirements

1. Java (JDK 8 or above)
2. Kotlin (not needed to install separately)

Compile and Run

Compile project

./gradlew assemble

Run Program

java -jar build/libs/IntercomGeoDist-1.0-SNAPSHOT.jar

Run Tests

./gradlew check 

Test Coverage & Report

Run test with coverage report

./gradlew jacocoTestReport

Find test report (open in browser) -
build/jacocoHtml/index.html