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package battleship.Networking;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileWriter;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;
public class ServerManager {
private static final List<ServerAddress> serverList = new ArrayList<>();
private static ServerManager serverManager = new ServerManager();
private ServerManager() {}
public static ServerManager getInstance()
{
readServersFromFile();
return serverManager;
}
private static void WriteSavedServersToFile()
{
try (FileWriter fw = new FileWriter("servers.dat"))
{
fw.write("Saved_Servers {" + System.lineSeparator());
for (ServerAddress serverAddress : serverList)
{
fw.write("\t" + serverAddress + System.lineSeparator());
}
fw.write("}");
}
catch (IOException ex)
{
System.out.println(ex.getMessage());
}
}
private static void readServersFromFile()
{
try
{
File file = new File("servers.dat");
Scanner reader = new Scanner(file);
while (reader.hasNextLine())
{
String data = reader.nextLine();
if (data.contains("Saved_Servers {"))
{
while (true)
{
String line = reader.nextLine();
if (line.contains("}"))
break;
String strArr[] = line.replaceAll("\\s+", "").split("\\$");
ServerAddress sAddress = new ServerAddress(strArr[0], strArr[1], Integer.parseInt(strArr[2]));
serverList.add(sAddress);
}
}
}
}
catch (FileNotFoundException ex)
{
ex.getMessage();
}
}
public static List<ServerAddress> getServers()
{
return serverList;
}
public static void addServer(ServerAddress sAddress)
{
for (ServerAddress serverAddress : serverList)
{
if (sAddress.getName().equals(serverAddress.getName()))
{
throw new RuntimeException("SZERVER NÉV MÁR LÉTEZIK");
}
}
serverList.add(sAddress);
WriteSavedServersToFile();
}
public static void editServer(String name, ServerAddress newAddress)
{
if (!name.equals(newAddress.getName()))
{
for (ServerAddress serverAddress : serverList)
{
if (newAddress.getName().equals(serverAddress.getName()))
{
throw new RuntimeException("SZERVER NÉV MÁR LÉTEZIK");
}
}
}
for (ServerAddress serverAddress : serverList)
{
if (name.equals(serverAddress.getName()))
{
serverAddress.setName(newAddress.getName());
serverAddress.setIP(newAddress.getIP());
serverAddress.setPort(newAddress.getPort());
WriteSavedServersToFile();
break;
}
}
}
public static void deleteServer(ServerAddress sAddress)
{
for (int i = 0; i < serverList.size(); ++i)
{
if (serverList.get(i).getName().equals(sAddress.getName()))
{
serverList.remove(serverList.get(i));
WriteSavedServersToFile();
break;
}
}
}
}
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