Work With Airport Data Management System in Java Assignment Solution

import java.io.IOException;

import java.nio.file.Files;

import java.nio.file.Path;

import java.nio.file.Paths;

import java.text.ParseException;

import java.text.SimpleDateFormat;

import java.time.LocalDate;

import java.time.LocalDateTime;

import java.time.ZoneId;

import java.util.*;

import java.util.stream.Collectors;

public class AirportData {

    private ListwedgePolygons;

    private static class Wedge {

    }

    private static void overWriteAirportDataStruct(String airportName, String svnPortal, int day_start, AirportData airportDataStruct) {

        String name = airportName;

        if (Arrays.asList("JKG").contains(name)) {

            name = "JFK";

        }

        try {

            SimpleDateFormat format = new SimpleDateFormat("MMddyy");

            Listlist = Files.list(Paths.get(svnPortal, "Data", "Maps", name)).collect(Collectors.toList());

            Listresults = new ArrayList<>();

            for (Path path : list) {

                if (path.toFile().isDirectory()) {

                    try {

                        String filename = path.getFileName().toString();

                        Date date = format.parse(filename);

                        LocalDate localDate = LocalDateTime.ofInstant(date.toInstant(), ZoneId.systemDefault()).toLocalDate();

                        long dateNum = localDate.toEpochDay();

                        if (dateNum <= day_start) {

                            results.add(dateNum);

                        }

                    } catch (ParseException ignored) {

                    }

                }

            }

            Collections.sort(results);

            if (!results.isEmpty()) {

                save(Paths.get(svnPortal, "Data", "Maps", name,

                        format.format(LocalDate.ofEpochDay(results.get(results.size() - 1))), name, "_AirportData"), airportDataStruct);

            } else {

                save(Paths.get(svnPortal, "Data", "Maps", name, name, "_AirportData"), airportDataStruct);

            }

        } catch (IOException e) {

            throw new RuntimeException(e);

        }

    }

    private static void computeWedgesAndWriteAirportData(String airportCode, int startDate, int numdays, String drive, String pathSuffix) {

        AirportData airportData = loadAirportDataStruct(airportCode, System.getenv("AirportalPath"), startDate);

        Listwedges = computeWedges(airportCode, startDate, airportData, numdays, drive, pathSuffix);

        boolean zoomable = true;

        drawAirport(airportData, zoomable);

        drawPolygon(wedges);

        airportData.wedgePolygons = wedges;

        String result = "";

        try (Scanner scanner = new Scanner(System.in)) {

            while (!result.equals("Y") && !result.equals("N")) {

                System.out.println("Do you want to save the airportData with wedges over the current airportData? Y/N");

                result = scanner.nextLine();

            }

        }

        if (result.equals("Y")) {

            overWriteAirportDataStruct(airportCode, System.getenv("AiportalPath"), startDate, airportData);

        }

    }

    private static ListcomputeWedges(String airportName, int dayStart, AirportData airportData, Integer numdays,

                                             String drive, String pathSuffix) {

        if (numdays == null) {

            numdays = 14;

        }

        if (drive == null) {

            drive = "M:\\";

        }

        if (pathSuffix == null || pathSuffix.isEmpty()) {

            pathSuffix = "";

        }

        ListaltOpsPath = Arrays.asList(drive, airportName, pathSuffix, "\\");

        int dayStop = dayStart + numdays - 1;

        ListallArrivals = new ArrayList<>();

        return null;

    }

    private static AirportData loadAirportDataStruct(String airportName, String svnPortal, int date_start) {

        String name = airportName;

        if (Arrays.asList("JKG").contains(name)) {

            name = "JFK";

        }

        try {

            SimpleDateFormat format = new SimpleDateFormat("MMddyy");

            Listlist = Files.list(Paths.get(svnPortal, "Data", "Maps", name)).collect(Collectors.toList());

            Listresults = new ArrayList<>();

            for (Path path : list) {

                if (path.toFile().isDirectory()) {

                    try {

                        String filename = path.getFileName().toString();

                        Date date = format.parse(filename);

                        LocalDate localDate = LocalDateTime.ofInstant(date.toInstant(), ZoneId.systemDefault()).toLocalDate();

                        long dateNum = localDate.toEpochDay();

                        if (dateNum <= date_start) {

                            results.add(dateNum);

                        }

                    } catch (ParseException ignored) {

                    }

                }

            }

            Collections.sort(results);

            if (!results.isEmpty()) {

                return load(Paths.get(svnPortal, "Data", "Maps", name,

                        format.format(LocalDate.ofEpochDay(results.get(results.size() - 1))),

                        name,

                        "_AirportData"));

            } else {

                return load(Paths.get(svnPortal, "Data", "Maps", name, name, "_AirportData"));

            }

        } catch (IOException e) {

            throw new RuntimeException(e);

        }

    }

    private static AirportData load(Path path) {

        return null;

    }

    private static void save(Path path, AirportData airportData) {}

    private static void drawAirport(AirportData airportData, boolean zoomable) {}

    private static void drawPolygon(Listwedges) {}

    public static void main(String[] args) {

    }

}