Added new class for serializing/deserializing.

Author: frostalf

src/main/java/pw/hwk/tutorial/util/Base64Serialize.java

@@ -0,0 +1,128 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package pw.hwk.tutorial.util;
+
+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 Frostalf
+ */
+public class Base64Serialize {
+    public static String toBase64(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 (Exception e) {
+            throw new IllegalStateException("Cannot into itemstacksz!", e);
+        }
+    }
+
+    public static String toBase64(ItemStack[] is, int size) {
+        Inventory inventory = Bukkit.createInventory(null, size);
+        inventory.setContents(is);
+        return toBase64(inventory);
+    }
+
+    public static Inventory fromBase64(String data) {
+        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 (Exception e) {
+        }
+        return null;
+    }
+
+    /**
+     *
+     * A method to serialize an {@link ItemStack} array to Base64 String.
+     *
+     * <p />
+     *
+     * Based off of {@link #toBase64(Inventory)}.
+     *
+     * @param items to turn into a Base64 String.
+     * @return Base64 string of the items.
+     * @throws IllegalStateException
+     */
+    public static 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 (int i = 0; i < items.length; i++) {
+                dataOutput.writeObject(items[i]);
+            }
+
+            // Serialize that array
+            dataOutput.close();
+            return Base64Coder.encodeLines(outputStream.toByteArray());
+        } catch (Exception e) {
+            throw new IllegalStateException("Unable to save item stacks.", e);
+        }
+    }
+
+    /**
+     * Gets an array of ItemStacks from Base64 string.
+     *
+     * <p />
+     *
+     * Base off of {@link #fromBase64(String)}.
+     *
+     * @param data Base64 string to convert to ItemStack array.
+     * @return ItemStack array created from the Base64 string.
+     * @throws IOException
+     */
+    public static 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 (IOException | ClassNotFoundException e) {
+        }
+        return null;
+}
+}