| 1 | import java.io.File; |
| 2 | import java.io.FileNotFoundException; |
| 3 | import java.util.List; |
| 4 | import java.util.Scanner; |
| 5 | |
| 6 | public class Country { |
| 7 | private String name; |
| 8 | private String region; |
| 9 | private double lat; |
| 10 | private double lng; |
| 11 | private String flag; |
| 12 | private String csvFile = "data/countries.csv"; |
| 13 | |
| 14 | public Country() { |
| 15 | } |
| 16 | |
| 17 | public Country(String name) { |
| 18 | setName(name); |
| 19 | initCountryFromCSV(name); |
| 20 | } |
| 21 | |
| 22 | public Country(String name, String region, double lat, double lng, String flag) { |
| 23 | setName(name); |
| 24 | setRegion(region); |
| 25 | setLat(lat); |
| 26 | setLng(lng); |
| 27 | setFlag(flag); |
| 28 | } |
| 29 | |
| 30 | public String getName() { |
| 31 | return name; |
| 32 | } |
| 33 | |
| 34 | public void setName(String name) { |
| 35 | this.name = name; |
| 36 | } |
| 37 | |
| 38 | public void setRegion(String region) { |
| 39 | this.region = region; |
| 40 | } |
| 41 | |
| 42 | public double getLat() { |
| 43 | return lat; |
| 44 | } |
| 45 | |
| 46 | public void setLat(double lat) { |
| 47 | this.lat = lat; |
| 48 | } |
| 49 | |
| 50 | public double getLng() { |
| 51 | return lng; |
| 52 | } |
| 53 | |
| 54 | public void setLng(double lng) { |
| 55 | this.lng = lng; |
| 56 | } |
| 57 | |
| 58 | public String getFlag() { |
| 59 | return flag; |
| 60 | } |
| 61 | |
| 62 | public void setFlag(String flag) { |
| 63 | this.flag = flag; |
| 64 | } |
| 65 | |
| 66 | public int distanceTo(Country country) { |
| 67 | if ((this.getLat() == country.getLat()) && (this.getLng() == country.getLng())) { |
| 68 | return 0; |
| 69 | } else { |
| 70 | double theta = this.getLng() - country.getLng(); |
| 71 | Double dist = Math.sin(Math.toRadians(this.getLat())) * Math.sin(Math.toRadians(country.getLat())) + |
| 72 | Math.cos(Math.toRadians(this.getLat())) * Math.cos(Math.toRadians(country.getLat())) * |
| 73 | Math.cos(Math.toRadians(theta)); |
| 74 | dist = Math.acos(dist); |
| 75 | dist = Math.toDegrees(dist); |
| 76 | dist = dist * 60 * 1.1515; |
| 77 | // Kilometers |
| 78 | dist = dist * 1.609344; |
| 79 | return dist.intValue(); |
| 80 | } |
| 81 | } |
| 82 | |
| 83 | private void initCountryFromCSV(String name) { |
| 84 | Scanner scanner = null; |
| 85 | try { |
| 86 | scanner = new Scanner(new File(csvFile)); |
| 87 | } catch (FileNotFoundException e) { |
| 88 | e.printStackTrace(); |
| 89 | } |
| 90 | boolean found = false; |
| 91 | while (scanner.hasNext()) { |
| 92 | List<String> line = CSVUtils.parseLine(scanner.nextLine()); |
| 93 | String countryList = line.get(0); |
| 94 | String[] countryArray = countryList.split(","); |
| 95 | String latLng = line.get(16); |
| 96 | String[] latLngArray = latLng.split(","); |
| 97 | if (countryArray[0].equals(name)) { |
| 98 | found = true; |
| 99 | setRegion(line.get(12)); |
| 100 | setLat(Double.parseDouble(latLngArray[0])); |
| 101 | setLng(Double.parseDouble(latLngArray[1])); |
| 102 | setFlag(line.get(21)); |
| 103 | } |
| 104 | } |
| 105 | if (!found) |
| 106 | System.out.println("Country " + name + " not found"); |
| 107 | scanner.close(); |
| 108 | } |
| 109 | |
| 110 | @Override |
| 111 | public String toString() { |
| 112 | return "Country{" + |
| 113 | "name='" + name + '\'' + |
| 114 | ", region='" + region + '\'' + |
| 115 | ", lat=" + lat + |
| 116 | ", lng=" + lng + |
| 117 | ", flag=" + flag + |
| 118 | '}'; |
| 119 | } |
| 120 | } |