Bukkit saving inventory enchantments

Question

I am working on a bukkit plugin. One thing I want this plugin to do is teleport you to other worlds on the server. However, I don't want the player's inventory to be saved.

Right now, I have this code:

File playerInvConfigFile = new File(plugin.getDataFolder() + File.separator + "players" + File.separator + sender.getName(), "inventory.yml");
FileConfiguration pInv = YamlConfiguration.loadConfiguration(playerInvConfigFile);

        Player user = (Player)sender;
        PlayerInventory inv = user.getInventory();

        String worldName = user.getWorld().getName();
        int i = 0;
        for (ItemStack stack : inv.getContents()){
            i++;
            String start = worldName + "." + Integer.toString(i);

            pInv.set(start + ".amount", stack.getAmount());
            pInv.set(start + ".durability", stack.getDurability());
            pInv.set(start + ".type", stack.getTypeId());
        }
        inv.clear();

This works great, but there is a big problem: enchantments are now saved! This is a big problem. I want to know how to both save enchantments to a file, and then read them back in and set them!

Thank you all!

Answer 1

There are two methods on ItemStack that you will find of use:

The first is getEnchantments, which returns a Map, which you will need to use an iterator to go through and save off the keys and values.

Map<Enchantment,Integer> enchantments = itemStack.getEnchantments();
Iterator<Entry<Enchantment,Integer>> iter = enchantments.entrySet().iterator();
while(iter.hasNext()){
    Entry<Enchantment,Integer> entry = iter.next();
    //do something with the entry
}

When you restore the inventory, you need to create a new HashMap, restore the values within the original map, and restore them to the ItemStack, using addEnchantments, which takes as its sole parameter a Map, so you deserialize whatever you serialized before, and then add it to the ItemStack like so:

itemStack.addEnchantments(enchantments);