Saving inventories into configs

Hi! I'm trying to make a plugin that adds a /hub command, but I have a problem: In the hub, the player's inventory gets wiped, so I want to save their inventory into a config. I've wrote some code to do that, but it doesn't save.


Main Class:

Code:

package com.mounterisastudios.nav;

import com.mounterisastudios.nav.commands.HubCommand;
import org.bukkit.configuration.file.FileConfiguration;
import org.bukkit.entity.Player;
import org.bukkit.inventory.Inventory;
import org.bukkit.inventory.ItemStack;
import org.bukkit.plugin.java.JavaPlugin;

import java.util.ArrayList;
import java.util.Locale;

public class Main extends JavaPlugin {


    @Override
    public void onEnable(){
        this.saveDefaultConfig();
        new HubCommand(this);
    }

    public static void saveinvtoconfig(Inventory inv, Player p, FileConfiguration config, String world) {
        ArrayList<ItemStack[]> invc = new ArrayList<>();
        invc.add(inv.getContents());
        for (int i = 0; i < invc.size(); i++) {
            if (config.getConfigurationSection("playerinventories." + p.getName().toLowerCase(Locale.ROOT) + "." + world + ".itemstack" + String.valueOf(i)) == null){
                config.createSection("playerinventories." + p.getName().toLowerCase(Locale.ROOT) + "." + world + ".itemstack" + String.valueOf(i));
            }
            config.set("playerinventories." + p.getName().toLowerCase(Locale.ROOT) + "." + world + ".itemstack" + String.valueOf(i), invc.get(i));

        }

    }

    public static Inventory getinvfromconfig(Player p, FileConfiguration config, String world) {
        ArrayList<ItemStack> invc = new ArrayList<>();
        for (int i = 0; i < config.getConfigurationSection("playerinventories." + p.getName().toLowerCase(Locale.ROOT) + "." + world + ".itemstack").getKeys(true).size(); i++) {
            invc.add(config.getItemStack("playerinventories." + p.getName().toLowerCase(Locale.ROOT) + "." + world + ".itemstack" + String.valueOf(i)));
        }
        Inventory inv = null;
        for (int x = 0; x < config.getConfigurationSection("playerinventories." + p.getName().toLowerCase(Locale.ROOT) + "." + world + ".itemstack").getKeys(true).size(); x++){
            inv.addItem(invc.get(x));
        }

        return inv;

    }

}

Hub Command Class:

Code:

package com.mounterisastudios.nav.commands;

import com.mounterisastudios.nav.Main;
import org.bukkit.*;
import org.bukkit.command.Command;
import org.bukkit.command.CommandExecutor;
import org.bukkit.command.CommandSender;
import org.bukkit.entity.Player;
import org.bukkit.inventory.Inventory;
import org.bukkit.inventory.ItemStack;

import java.util.ArrayList;

public class HubCommand implements CommandExecutor{

    private Main plugin;

    public HubCommand(Main plugin) {
        this.plugin = plugin;

        plugin.getCommand("hub").setExecutor(this);
    }


    @Override
    public boolean onCommand(CommandSender sender, Command cmd, String label, String[] args) {
        if (!(sender instanceof Player)) {
            sender.sendMessage(ChatColor.RED + "Only players can travel through interstellar space dimensions, silly!");
            return true;
        }
        Player p = (Player) sender;
        Bukkit.dispatchCommand(Bukkit.getServer().getConsoleSender(), "mvtp " + p.getName() + " hub");
        p.setOp(false);
        p.setGameMode(GameMode.ADVENTURE);
        Main.saveinvtoconfig(p.getInventory(), p, this.plugin.getConfig(), "overworld");
        p.getInventory().clear();

        return false;
    }





}

 

You are forgetting about saving their armor too, here's something that should in theory work but it's untested.

Code:

public static void saveInventory(Inventory inv, String uuid, Main plugin) throws IOException {
        File f = new File(plugin.getDataFolder().getAbsolutePath(), "inventories.yml");
        FileConfiguration c = YamlConfiguration.loadConfiguration(f);
        c.set("armor."+uuid, ((PlayerInventory) inv).getArmorContents());
        c.set("content."+uuid, ((PlayerInventory) inv).getContents());
        c.save(f);
    }
    @SuppressWarnings("unchecked")
    public static void restoreInventory(Player p, Main plugin) throws IOException {
        File f = new File(plugin.getDataFolder().getAbsolutePath(), "inventories.yml");
        FileConfiguration c = YamlConfiguration.loadConfiguration(f);
        ItemStack[] content = ((List<ItemStack>) c.get("armor."+p.getUniqueId())).toArray(new ItemStack[0]);
        p.getInventory().setArmorContents(content);
        content = ((List<ItemStack>) c.get("content."+p.getUniqueId())).toArray(new ItemStack[0]);
        p.getInventory().setContents(content);
    }