Application has been created for technical test purpose during interview process.
We have customer records in JSON file called customers.json with one customer per line, we would like to invite any customer within 100km of our office located in Dublin for some food and drinks. Program will read the list of customers and output the names and user ids of matching customers in range 100km, sorted by user id in ascending order.
Formula described on Wikipedia might be used to calculate distance. Office GPS coordinates are 53.3393, -6.2576841. Customers might be found also over here GitHubGist
Example content of customers.json
{"latitude": "52.986375", "user_id": 12, "name": "Christina McArdle", "longitude": "-6.043701"}
{"latitude": "51.92893", "user_id": 1, "name": "Alice Cahill", "longitude": "-10.27699"}
{"latitude": "51.8856167", "user_id": 2, "name": "Ian McArdle", "longitude": "-10.4240951"}
{"latitude": "52.3191841", "user_id": 3, "name": "Jack Enright", "longitude": "-8.5072391"}
{"latitude": "53.807778", "user_id": 28, "name": "Charlie Halligan", "longitude": "-7.714444"}
{"latitude": "53.4692815", "user_id": 7, "name": "Frank Kehoe", "longitude": "-9.436036"}
{"latitude": "54.0894797", "user_id": 8, "name": "Eoin Ahearn", "longitude": "-6.18671"}
{"latitude": "53.038056", "user_id": 26, "name": "Stephen McArdle", "longitude": "-7.653889"}
{"latitude": "54.1225", "user_id": 27, "name": "Enid Gallagher", "longitude": "-8.143333"}
{"latitude": "53.1229599", "user_id": 6, "name": "Theresa Enright", "longitude": "-6.2705202"}
{"latitude": "52.2559432", "user_id": 9, "name": "Jack Dempsey", "longitude": "-7.1048927"}
{"latitude": "52.240382", "user_id": 10, "name": "Georgina Gallagher", "longitude": "-6.972413"}
{"latitude": "53.2451022", "user_id": 4, "name": "Ian Kehoe", "longitude": "-6.238335"}
{"latitude": "53.1302756", "user_id": 5, "name": "Nora Dempsey", "longitude": "-6.2397222"}
{"latitude": "53.008769", "user_id": 11, "name": "Richard Finnegan", "longitude": "-6.1056711"}
{"latitude": "53.1489345", "user_id": 31, "name": "Alan Behan", "longitude": "-6.8422408"}
{"latitude": "53", "user_id": 13, "name": "Olive Ahearn", "longitude": "-7"}
{"latitude": "51.999447", "user_id": 14, "name": "Helen Cahill", "longitude": "-9.742744"}
{"latitude": "52.966", "user_id": 15, "name": "Michael Ahearn", "longitude": "-6.463"}
{"latitude": "52.366037", "user_id": 16, "name": "Ian Larkin", "longitude": "-8.179118"}
{"latitude": "54.180238", "user_id": 17, "name": "Patricia Cahill", "longitude": "-5.920898"}
{"latitude": "53.0033946", "user_id": 39, "name": "Lisa Ahearn", "longitude": "-6.3877505"}
{"latitude": "52.228056", "user_id": 18, "name": "Bob Larkin", "longitude": "-7.915833"}
{"latitude": "54.133333", "user_id": 24, "name": "Rose Enright", "longitude": "-6.433333"}
{"latitude": "55.033", "user_id": 19, "name": "Enid Cahill", "longitude": "-8.112"}
{"latitude": "53.521111", "user_id": 20, "name": "Enid Enright", "longitude": "-9.831111"}
{"latitude": "51.802", "user_id": 21, "name": "David Ahearn", "longitude": "-9.442"}
{"latitude": "54.374208", "user_id": 22, "name": "Charlie McArdle", "longitude": "-8.371639"}
{"latitude": "53.74452", "user_id": 29, "name": "Oliver Ahearn", "longitude": "-7.11167"}
{"latitude": "53.761389", "user_id": 30, "name": "Nick Enright", "longitude": "-7.2875"}
{"latitude": "54.080556", "user_id": 23, "name": "Eoin Gallagher", "longitude": "-6.361944"}
{"latitude": "52.833502", "user_id": 25, "name": "David Behan", "longitude": "-8.522366"}Expected output :
=== CUSTOMERS IN RANGE 100.0 km ===
Ian Kehoe(4)
Nora Dempsey(5)
Theresa Enright(6)
Eoin Ahearn(8)
Richard Finnegan(11)
Christina McArdle(12)
Olive Ahearn(13)
Michael Ahearn(15)
Patricia Cahill(17)
Eoin Gallagher(23)
Rose Enright(24)
Stephen McArdle(26)
Oliver Ahearn(29)
Nick Enright(30)
Alan Behan(31)
Lisa Ahearn(39)
- Java - 1.8.0_121
- Spring Boot - 1.5.1.RELEASE
- Guava - 21.0
- Jackson Databind - 2.8.8
- Jackson Module Parameter Names - 2.8.8
Code released under the Apache License 2.0. Docs released under Creative Commons.
