TARDISSerializeInventory.java

/*
 * Copyright (C) 2016 eccentric_nz
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
package me.eccentric_nz.TARDIS.advanced;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import org.bukkit.Bukkit;
import org.bukkit.inventory.Inventory;
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;

/**
 *
 * @author original code by comphenix - https://gist.github.com/aadnk/8138186
 */
public class TARDISSerializeInventory {

    public static String inventoryToString(Inventory inventory) {
        try {
            ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
            BukkitObjectOutputStream dataOutput = new BukkitObjectOutputStream(outputStream);
            // Write the size of the inventory
            dataOutput.writeInt(inventory.getSize());
            // Save every element in the list
            for (int i = 0; i < inventory.getSize(); i++) {
                dataOutput.writeObject(inventory.getItem(i));
            }
            // Serialize that array
            dataOutput.close();
            return Base64Coder.encodeLines(outputStream.toByteArray());
        } catch (IOException e) {
            throw new IllegalStateException("Unable to save item stacks.", e);
        }
    }

    public static String itemStacksToString(ItemStack[] stack) {
        try {
            ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
            BukkitObjectOutputStream dataOutput = new BukkitObjectOutputStream(outputStream);
            // Write the size of the stack
            dataOutput.writeInt(stack.length);
            for (ItemStack is : stack) {
                dataOutput.writeObject(is);
            }
            // Serialize that array
            dataOutput.close();
            return Base64Coder.encodeLines(outputStream.toByteArray());
        } catch (IOException e) {
            throw new IllegalStateException("Unable to save item stacks.", e);
        }
    }

    public static Inventory inventoryFromString(String data) throws IOException {
        try {
            ByteArrayInputStream inputStream = new ByteArrayInputStream(Base64Coder.decodeLines(data));
            BukkitObjectInputStream dataInput = new BukkitObjectInputStream(inputStream);
            Inventory inventory = Bukkit.getServer().createInventory(null, dataInput.readInt());
            // Read the serialized inventory
            for (int i = 0; i < inventory.getSize(); i++) {
                inventory.setItem(i, (ItemStack) dataInput.readObject());
            }
            dataInput.close();
            return inventory;
        } catch (ClassNotFoundException e) {
            throw new IOException("Unable to decode class type.", e);
        }
    }

    public static ItemStack[] itemStacksFromString(String data) throws IOException {
        try {
            ByteArrayInputStream inputStream = new ByteArrayInputStream(Base64Coder.decodeLines(data));
            BukkitObjectInputStream dataInput = new BukkitObjectInputStream(inputStream);
            ItemStack[] stack = new ItemStack[dataInput.readInt()];
            // Read the serialized ItemStacks
            for (int i = 0; i < stack.length; i++) {
                stack[i] = (ItemStack) dataInput.readObject();
            }
            dataInput.close();
            return stack;
        } catch (ClassNotFoundException e) {
            throw new IOException("Unable to decode class type.", e);
        }
    }
}