PIbd-22_Tsukanova_I.V._AircraftCarrier_Hard/src/MapsCollection.java

import java.io.*;
import java.util.ArrayList;
import java.util.HashMap;

public class MapsCollection {
    private final HashMap<String, MapWithSetWarshipsGeneric<DrawingObjectWarship, AbstractMap>> _mapStorages;
    public ArrayList<String> Keys() {
        return new ArrayList<>(_mapStorages.keySet());
    }
    private final int _pictureWidth;
    private final int _pictureHeight;
    private final char separatorDict = '|';
    private final char separatorData = ';';

    public MapsCollection(int pictureWidth, int pictureHeight)
    {
        _mapStorages = new HashMap<>();
        _pictureWidth = pictureWidth;
        _pictureHeight = pictureHeight;
    }

    public void AddMap(String name, AbstractMap map)
    {
        if (_mapStorages.containsKey(name))
        {
            return;
        }
        _mapStorages.put(name, new MapWithSetWarshipsGeneric<>(_pictureWidth,_pictureHeight,map));
    }

    public void DelMap(String name)
    {
        _mapStorages.remove(name);
    }

    public MapWithSetWarshipsGeneric<DrawingObjectWarship, AbstractMap> get(String ind){
        if (_mapStorages.containsKey(ind))
        {
            return _mapStorages.get(ind);
        }
        return null;
    }

    public DrawingObjectWarship Get(String name, int ind) {
        if (_mapStorages.containsKey(name))
        {
            return _mapStorages.get(name).GetWarshipInList(ind);
        }
        return null;
    }

    public boolean SaveData(String filename) {
        File file = new File(filename);

        if (file.exists()) {
            file.delete();
        }
        try (BufferedWriter br = new BufferedWriter(new FileWriter(filename)))
        {
            br.write("MapsCollection\n");
            for (var storage : _mapStorages.entrySet()) {
                br.write(storage.getKey() + separatorDict + storage.getValue().GetData(separatorDict, separatorData) + "\n");
            }
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
        return true;
    }

    public boolean LoadData(String filename)
    {
        if (!(new File(filename).exists()))
        {
            return false;
        }
        try (BufferedReader br = new BufferedReader(new FileReader(filename)))
        {
            String str = "";
            if ((str = br.readLine()) == null || !str.contains("MapsCollection"))
            {
                return false;
            }
            //очищаем записи
            _mapStorages.clear();
            while ((str = br.readLine()) != null)
            {
                var elem = str.split(String.format("\\%c",separatorDict));
                AbstractMap map = null;
                switch (elem[1])
                {
                    case "SimpleMap":
                        map = new SimpleMap();
                        break;
                    case "LineMap":
                        map = new LineMap();
                        break;
                }
                _mapStorages.put(elem[0], new MapWithSetWarshipsGeneric<>(_pictureWidth, _pictureHeight, map));
                _mapStorages.get(elem[0]).LoadData(elem[2].split(separatorData + "\n?"));
            }
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
        return true;
    }

    //Сохранение отдельного объекта класса-хранилища
    public boolean SaveMap(String filename, String index) {
        File file = new File(filename);
        if (file.exists()) {
            file.delete();
        }
        var elem = _mapStorages.get(index);
        if (elem==null)
            return false;
        try (BufferedWriter br = new BufferedWriter(new FileWriter(filename)))
        {
            br.write("MapsCollection\n");
            br.write(index + separatorDict);
            br.write(elem.GetDataMap(separatorDict, separatorData));
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
        return true;
    }

    //Загрузка отдельного объекта класса-хранилища
    public boolean LoadMap(String filename) {
        if (!(new File(filename).exists()))
        {
            return false;
        }
        try (BufferedReader br = new BufferedReader(new FileReader(filename)))
        {
            String str = "";
            if ((str = br.readLine()) == null || !str.contains("MapsCollection"))
            {
                //если нет такой записи, то это не те данные
                return false;
            }
            if ((str = br.readLine()) != null)
            {
                var elem = str.split(String.format("\\%c",separatorDict));
                AbstractMap map = null;
                switch (elem[1])
                {
                    case "SimpleMap":
                        map = new SimpleMap();
                        break;
                    case "LineMap":
                        map = new LineMap();
                        break;
                }
                if(_mapStorages.containsKey(elem[0])){
                    _mapStorages.get(elem[0]).Clear();
                }
                else{
                    _mapStorages.put(elem[0],new MapWithSetWarshipsGeneric<>(_pictureWidth,_pictureHeight,map));
                }
                while((str = br.readLine()) != null) {
                    _mapStorages.get(elem[0]).LoadData(str.split(separatorData + "\n?"));
                }

            }
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
        return true;
    }
}