CommandPanels/src/me/rockyhawk/commandpanels/playerinventoryhandler/ItemStackSerializer.java

package me.rockyhawk.commandpanels.playerinventoryhandler;

import me.rockyhawk.commandpanels.CommandPanels;
import org.bukkit.inventory.ItemStack;
import org.bukkit.util.io.BukkitObjectInputStream;
import org.bukkit.util.io.BukkitObjectOutputStream;
import org.yaml.snakeyaml.external.biz.base64Coder.Base64Coder;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;

public class ItemStackSerializer {
    CommandPanels plugin;
    public ItemStackSerializer(CommandPanels pl) {
        this.plugin = pl;
    }

    public String itemStackArrayToBase64(ItemStack[] items) {
        try {
            ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
            BukkitObjectOutputStream dataOutput = new BukkitObjectOutputStream(outputStream);

            // Write the size of the inventory
            dataOutput.writeInt(items.length);

            // Save every element in the list
            for (ItemStack item : items) {
                dataOutput.writeObject(item);
            }

            // Serialize that array
            dataOutput.close();
            return Base64Coder.encodeLines(outputStream.toByteArray());
        } catch (Exception e) {
            plugin.debug(e,null);
        }
        return null;
    }

    public ItemStack[] itemStackArrayFromBase64(String data) {
        try {
            ByteArrayInputStream inputStream = new ByteArrayInputStream(Base64Coder.decodeLines(data));
            BukkitObjectInputStream dataInput = new BukkitObjectInputStream(inputStream);
            ItemStack[] items = new ItemStack[dataInput.readInt()];

            // Read the serialized inventory
            for (int i = 0; i < items.length; i++) {
                items[i] = (ItemStack) dataInput.readObject();
            }

            dataInput.close();
            return items;
        } catch (ClassNotFoundException | IOException e) {
            plugin.debug(e,null);
        }
        return null;
    }
}