PIbd-23_Mochalov_D.V._Locom.../MapsCollection.java

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Java
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import java.io.*;
import java.util.ArrayList;
import java.util.HashMap;
public class MapsCollection {
/// Словарь (хранилище) с картами
final HashMap<String, MapWithSetLocomotivesGeneric<IDrawningObject, AbstractMap>> _mapStorages;
/// Возвращение списка названий карт
public ArrayList<String> keys() {
return new ArrayList<String>(_mapStorages.keySet());
}
/// Ширина окна отрисовки
private final int _pictureWidth;
/// Высота окна отрисовки
private final int _pictureHeight;
// Сепараторы
private final String separatorDict = "\\|";
private final char separatorData = ';';
/// Конструктор
public MapsCollection(int pictureWidth, int pictureHeight)
{
_mapStorages = new HashMap<String, MapWithSetLocomotivesGeneric<IDrawningObject, AbstractMap>>();
_pictureWidth = pictureWidth;
_pictureHeight = pictureHeight;
}
/// Добавление карты
public void AddMap(String name, AbstractMap map)
{
// Логика для добавления
if (!_mapStorages.containsKey(name)) _mapStorages.put(name, new MapWithSetLocomotivesGeneric<IDrawningObject, AbstractMap>(_pictureWidth, _pictureHeight, map));
}
/// Удаление карты
public void DelMap(String name)
{
// Логика для удаления
if (_mapStorages.containsKey(name)) _mapStorages.remove(name);
}
/// Доступ к парковке
public MapWithSetLocomotivesGeneric<IDrawningObject, AbstractMap> Get(String ind)
{
// Логика получения объекта
if (_mapStorages.containsKey(ind)) return _mapStorages.get(ind);
return null;
}
// Доп.индексатор из задания
public IDrawningObject Get (String name, int position) {
if (_mapStorages.containsKey(name)) return _mapStorages.get(name)._setLocomotives.Get(position);
else return null;
}
/// Сохранение информации по локомотивам в хранилище в файл
public boolean SaveData(String filename)
{
File file = new File(filename);
if (file.exists())
{
file.delete();
}
try(BufferedWriter bw = new BufferedWriter(new FileWriter(filename))) {
bw.write("MapsCollection\n");
for (var storage : _mapStorages.entrySet()) {
bw.write("" + storage.getKey() + separatorDict + storage.getValue().GetData(separatorDict.charAt(0), separatorData) + "\n");
}
}
catch (IOException ex) {
System.out.println(ex.getMessage());
}
return true;
}
/// Загрузка информации по локомотивам в депо из файла
public boolean LoadData(String filename)
{
File file = new File(filename);
if (!file.exists())
{
return false;
}
try {
BufferedReader br = new BufferedReader(new FileReader(filename));
String curLine = br.readLine();
if (!curLine.contains("MapsCollection")) {
return false;
}
_mapStorages.clear();
while ((curLine = br.readLine()) != null) {
var elems = curLine.split(separatorDict);
AbstractMap map = null;
switch (elems[1])
{ //TODO!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
case "class SimpleMap":
map = new SimpleMap();
break;
case "class SpikeMap":
map = new SpikeMap();
break;
case "class RailMap":
map = new RailMap();
break;
}
_mapStorages.put(elems[0], new MapWithSetLocomotivesGeneric<IDrawningObject, AbstractMap>(_pictureWidth, _pictureHeight, map));
_mapStorages.get(elems[0]).LoadData(elems[2].split(Character.toString(separatorData)));
}
} catch (IOException ex) {
System.out.println(ex.getMessage());
}
return true;
}
}