SpaceCraft Application Challenge

• Java + Spring Boot Application

Application Structure

• A controller as entry point and service layer with some utilities
• Generic exception handling for some I/O methods

Extras

• App runs on port 9000
• Swagger documentation available at:

  http://localhost:9000/swagger-ui/index.html

• Postman collection available in the repository
• HealthCheck endpoint available at:

  http://localhost:9000/actuator/health

• Postman collection available in the repository

How to run

• Download locally, import maven projects & just run and have fun

From the command line:

mvn spring-boot:run

The application also contains a dockerfile. To build the image:

docker build -t spacecraft-app .

After building the image, run it with:

docker run -p 9000:9000 spacecraft-app

How to test

• All tests are in the test folder with 100% coverage

How to build

mvn clean install

Challenge Description

Create a Spring Boot application in Java that uses 3 provided .json files as input, to combine spacecraft onboard events with latitude and longitude positions to display the accurate geographic positions of each event.
The .json files are:

• events.json - contains a list of events that occurred onboard a spacecraft
• latitudes.json - contains a list of latitudes that correspond to the events in the latitudes.json file
• longitudes.json - contains a list of longitudes that correspond to the events in the longitudes.json file

Requirements:

• Use the Spring Boot framework
• Json files should not be modified. They contain time-stamped latitude and longitude positions that change over time, and spacecraft onboard events with occurence_time, event_name and severity
• The application should provide a REST interface offering its users with two features:
  • Deliver the latitude & longitude for a given event_id
  • Deliver the whole list of events and associated positions
• The latitude and longitude positions for events should be determined by matching the event's occurrence_time with the closest available positions in the latitudes.json and longitudes.json files. Indicate the potential error for each position.