Saving Lists of Items to Config?

Hello everyone, I was wondering if someone out there had an answer to my question...

I am looking for a way to store large lists of items in a config to later be pulled out. The biggest example would be saving the contents of a chest, and then opening the chest up at a different location with the same contents in it. Similar to an enderchest. Any suggestions?

 

say you have an ArrayList of the items.. you could just do <plugin main>.getConfig().set("path.to.save", <ArrayList>);

 

killerman747
Here is an example of saving a list to a config:

Code:java

List<String> list = new ArrayList<String>();
 
list.add(thevaluesyouneed);
 
this.getConfig().set("myvalues", list);
this.saveConfig()

This will create a list
add to the list
set the list to a area in the config
then save the config

Hope I helped

--Heirteir

 

Yes, but how I would I go about creating this list of items, their Ids, metadata and amount of each item per slot for a chest?

 

killerman747

Code:java

ArrayList<ItemStack> chestitems;
for (ItemStack s : <Chest Inventory>)
{
    chestitems.add(s);
}
 
this.getConfig().set("chest", chestitems);
this.saveConfig();

 

Code:java

Chest yourChest = (Chest) Bukkit.getWorld(Main.getWorldName()).getBlockAt(aLocation).getState();       
 
List<ItemStack[]> chestContents = new ArrayList<ItemStack[]>();
chestContents.add(yourChest.getInventory().getContents());
 
//Save to config here...

 

GeorgeeeHD beeselmane
Alright thats all good, but how would I then take this list and fill a chest with its contents?

 

make a new list equal to the list from the config, then iterate over each ietmstack and put them in the chest

 

GeorgeeeHD
So I have been playing around with this for a bit but still cant seem to get it to work. Heres what I currently have:

Code:

Inventory thing= Bukkit.createInventory(player, 54, "Thing"");
                    @SuppressWarnings("unchecked")
                    List<ItemStack[]> thingc = (List<ItemStack[]>) getConfig().get(".Users." + player.getName() + ".Thing");
                    ItemStack[] thingcontents = thingc.toArray(new ItemStack[0]);
                    thing.setContents(thingcontents );

 

Be sure your server environment is setup correctly with UTF8 or these methods will mess up custom names and lore containing color codes.

 

BillyGalbreath
I guess I should have included the error message I get in console when I try to open this inventory...

Code:

[22:57:47] [Server thread/ERROR]: Could not pass event PlayerInteractEntityEvent to MyPlugin v0.4
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:320) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:486) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:471) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
    at net.minecraft.server.v1_7_R1.PlayerConnection.a(PlayerConnection.java:1068) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
    at net.minecraft.server.v1_7_R1.PacketPlayInUseEntity.a(SourceFile:55) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
    at net.minecraft.server.v1_7_R1.PacketPlayInUseEntity.handle(SourceFile:10) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
    at net.minecraft.server.v1_7_R1.NetworkManager.a(NetworkManager.java:146) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
    at net.minecraft.server.v1_7_R1.ServerConnection.c(SourceFile:134) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
    at net.minecraft.server.v1_7_R1.MinecraftServer.u(MinecraftServer.java:655) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
    at net.minecraft.server.v1_7_R1.DedicatedServer.u(DedicatedServer.java:250) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
    at net.minecraft.server.v1_7_R1.MinecraftServer.t(MinecraftServer.java:545) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
    at net.minecraft.server.v1_7_R1.MinecraftServer.run(MinecraftServer.java:457) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
    at net.minecraft.server.v1_7_R1.ThreadServerApplication.run(SourceFile:617) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
Caused by: java.lang.NullPointerException
    at me.dwarvenrealms.myplugin.VillagerHandler.BankUse(VillagerHandler.java:43) ~[?:?]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.7.0_13]
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_13]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_13]
    at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.7.0_13]
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:318) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
    ... 13 more

 

There is something null in the method BankUse in class VillagerHandler at line 43. Please post the code if possible.

 

Seadragon91
Alright so I saw that the inventory was returning null so I added some more code, the only problem now is that when the inventory isnt null, and does contain items, the inventory dosnt open. Heres the code:

Code:java

Inventory bank = Bukkit.createInventory(player, 54, ChatColor.GOLD + "Bank");
                    @SuppressWarnings("unchecked")
                    List<ItemStack[]> bankc = (List<ItemStack[]>) plugin.getConfig().get(".Users." + player.getName() + ".Bank");
                    if(bankc==null){
                        player.sendMessage("NULL");
                        player.openInventory(bank);
                    }else{
                        player.sendMessage("NOT NULL");
                        ItemStack[] bankcontents = bankc.toArray(new ItemStack[1]);
                        bank.setContents(bankcontents);
                        player.openInventory(bank);
                    }

Heres the error:

Code:

[10:57:44] [Server thread/ERROR]: Could not pass event PlayerInteractEntityEvent to MyPlugin v0.4
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:320) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:486) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:471) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
    at net.minecraft.server.v1_7_R1.PlayerConnection.a(PlayerConnection.java:1068) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
    at net.minecraft.server.v1_7_R1.PacketPlayInUseEntity.a(SourceFile:55) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
    at net.minecraft.server.v1_7_R1.PacketPlayInUseEntity.handle(SourceFile:10) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
    at net.minecraft.server.v1_7_R1.NetworkManager.a(NetworkManager.java:146) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
    at net.minecraft.server.v1_7_R1.ServerConnection.c(SourceFile:134) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
    at net.minecraft.server.v1_7_R1.MinecraftServer.u(MinecraftServer.java:655) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
    at net.minecraft.server.v1_7_R1.DedicatedServer.u(DedicatedServer.java:250) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
    at net.minecraft.server.v1_7_R1.MinecraftServer.t(MinecraftServer.java:545) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
    at net.minecraft.server.v1_7_R1.MinecraftServer.run(MinecraftServer.java:457) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
    at net.minecraft.server.v1_7_R1.ThreadServerApplication.run(SourceFile:617) [craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
Caused by: java.lang.ArrayStoreException
    at java.lang.System.arraycopy(Native Method) ~[?:1.7.0_13]
    at java.util.ArrayList.toArray(Unknown Source) ~[?:1.7.0_13]
    at me.dwarvenrealms.myplugin.VillagerHandler.BankUse(VillagerHandler.java:48) ~[?:?]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.7.0_13]
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_13]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_13]
    at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.7.0_13]
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:318) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
    ... 13 more

 

Question: Does setConfig have custom handlers for objects like itemstacks..? If not then this method of saving items to a config will not work.

 

DrEinsteinium ItemStacks implement ConfigurationSerializable, meaning they can be saved using a config.

 

DrEinsteinium xTigerRebornx
Either of you guys know what could be possibly going wrong?

Alright, not sure if this could be the cause but in the config where the ArrayList of items is saving, it shows up like this:

Code:

- - ==: org.bukkit.inventory.ItemStack
        type: ROTTEN_FLESH
      - null

Does that extra dash in front of the first line affect it?

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

killerman747
Im not sure what the output is supposed to look like... but YAML should not be parsable with two -- in front of eachother like that.

 

Still have no idea...I might have to try to just save each slot differently then load it that way. Any last minute help?

 

I personally don't trust just anything that implements ConfigurationSerializable and prefer to use a compact string with my own syntax. I like the way BattleKits does its item stack format with id:amount:data. You can create your own method to save an ItemStack into that format, and then use String.split to break it up and put the data back into an ItemStack. This is for user-friendly configurations.

Now, seeing as you want to save all of the data for an item stack, you also probably need to save enchantments, lore, display name, etc. You can try extending a single-string format like I did, or you could choose to go back to using the ItemStack as a ConfigurationSerializable.

 

coasterman10
Yea that is what I was looking at recently, saving each slot with its own string like that.