Package net.minecraft.server.function

Class FunctionLoader

java.lang.Object

net.minecraft.server.function.FunctionLoader

All Implemented Interfaces:

ResourceReloader

public class FunctionLoader
extends Object
implements ResourceReloader

The function loader holds the functions and function tags for a CommandFunctionManager to use. In the reloads, it loads the tags in one completable future and each function in a completable future for all functions.

The functions are stored in .mcfunction files; each line is one Minecraft command, with blank lines and contents starting with a trailing hash # sign ignored.

The function tags are ordered, unlike other tags. Each function's order in the collection of functions from the tag is determined by the order it is listed in the JSON files; if it appears multiple times through tag nesting, only its first appearance will be considered.

See Also:

• CommandFunctionManager

Mappings:

Namespace	Name
named	net/minecraft/server/function/FunctionLoader
intermediary	net/minecraft/class_5349
official	alj

Nested Class Summary

Nested classes/interfaces inherited from interface net.minecraft.resource.ResourceReloader

ResourceReloader.Synchronizer

Field Summary

Fields

Modifier and Type	Field	Description
private final com.mojang.brigadier.CommandDispatcher<ServerCommandSource>	commandDispatcher
private static final ResourceFinder	FINDER
static final RegistryKey<Registry<CommandFunction<ServerCommandSource>>>	FUNCTION_REGISTRY_KEY
private Map<Identifier,CommandFunction<ServerCommandSource>>	functions
private final int	level
private static final Logger	LOGGER
private final TagGroupLoader<CommandFunction<ServerCommandSource>>	tagLoader
private Map<Identifier,List<CommandFunction<ServerCommandSource>>>	tags

Constructor Summary

Constructors

Constructor	Description
FunctionLoader(int level, com.mojang.brigadier.CommandDispatcher<ServerCommandSource> commandDispatcher)

Method Summary

Modifier and Type	Method	Description
Optional<CommandFunction<ServerCommandSource>>	get(Identifier id)
Map<Identifier,CommandFunction<ServerCommandSource>>	getFunctions()
List<CommandFunction<ServerCommandSource>>	getTagOrEmpty(Identifier id)
Iterable<Identifier>	getTags()
private static List<String>	readLines(Resource resource)
CompletableFuture<Void>	reload(ResourceReloader.Synchronizer synchronizer, ResourceManager manager, Executor prepareExecutor, Executor applyExecutor)	Performs a reload.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface net.minecraft.resource.ResourceReloader

getName

Field Details

LOGGER

private static final Logger LOGGER

Mappings:

Namespace	Name	Mixin selector
named	LOGGER	Lnet/minecraft/server/function/FunctionLoader;LOGGER:Lorg/slf4j/Logger;
intermediary	field_25326	Lnet/minecraft/class_5349;field_25326:Lorg/slf4j/Logger;
official	b	Lalj;b:Lorg/slf4j/Logger;

FUNCTION_REGISTRY_KEY

public static final RegistryKey<Registry<CommandFunction<ServerCommandSource>>> FUNCTION_REGISTRY_KEY

Mappings:

Namespace	Name	Mixin selector
named	FUNCTION_REGISTRY_KEY	Lnet/minecraft/server/function/FunctionLoader;FUNCTION_REGISTRY_KEY:Lnet/minecraft/registry/RegistryKey;
intermediary	field_51976	Lnet/minecraft/class_5349;field_51976:Lnet/minecraft/class_5321;
official	a	Lalj;a:Laku;

FINDER

private static final ResourceFinder FINDER

Mappings:

Namespace	Name	Mixin selector
named	FINDER	Lnet/minecraft/server/function/FunctionLoader;FINDER:Lnet/minecraft/resource/ResourceFinder;
intermediary	field_39978	Lnet/minecraft/class_5349;field_39978:Lnet/minecraft/class_7654;
official	c	Lalj;c:Lako;

functions

private volatile Map<Identifier,CommandFunction<ServerCommandSource>> functions

Mappings:

Namespace	Name	Mixin selector
named	functions	Lnet/minecraft/server/function/FunctionLoader;functions:Ljava/util/Map;
intermediary	field_25329	Lnet/minecraft/class_5349;field_25329:Ljava/util/Map;
official	d	Lalj;d:Ljava/util/Map;

tagLoader

private final TagGroupLoader<CommandFunction<ServerCommandSource>> tagLoader

Mappings:

Namespace	Name	Mixin selector
named	tagLoader	Lnet/minecraft/server/function/FunctionLoader;tagLoader:Lnet/minecraft/registry/tag/TagGroupLoader;
intermediary	field_25330	Lnet/minecraft/class_5349;field_25330:Lnet/minecraft/class_3503;
official	e	Lalj;e:Laxg;

tags

private volatile Map<Identifier,List<CommandFunction<ServerCommandSource>>> tags

Mappings:

Namespace	Name	Mixin selector
named	tags	Lnet/minecraft/server/function/FunctionLoader;tags:Ljava/util/Map;
intermediary	field_25801	Lnet/minecraft/class_5349;field_25801:Ljava/util/Map;
official	f	Lalj;f:Ljava/util/Map;

level

private final int level

Mappings:

Namespace	Name	Mixin selector
named	level	Lnet/minecraft/server/function/FunctionLoader;level:I
intermediary	field_25331	Lnet/minecraft/class_5349;field_25331:I
official	g	Lalj;g:I

commandDispatcher

private final com.mojang.brigadier.CommandDispatcher<ServerCommandSource> commandDispatcher

Mappings:

Namespace	Name	Mixin selector
named	commandDispatcher	Lnet/minecraft/server/function/FunctionLoader;commandDispatcher:Lcom/mojang/brigadier/CommandDispatcher;
intermediary	field_25332	Lnet/minecraft/class_5349;field_25332:Lcom/mojang/brigadier/CommandDispatcher;
official	h	Lalj;h:Lcom/mojang/brigadier/CommandDispatcher;

Constructor Details

FunctionLoader

public FunctionLoader(int level,
 com.mojang.brigadier.CommandDispatcher<ServerCommandSource> commandDispatcher)

Mappings:

Namespace	Name	Mixin selector
named	<init>	Lnet/minecraft/server/function/FunctionLoader;<init>(ILcom/mojang/brigadier/CommandDispatcher;)V
intermediary	<init>	Lnet/minecraft/class_5349;<init>(ILcom/mojang/brigadier/CommandDispatcher;)V
official	<init>	Lalj;<init>(ILcom/mojang/brigadier/CommandDispatcher;)V

Method Details

get

public Optional<CommandFunction<ServerCommandSource>> get(Identifier id)

Mappings:

Namespace	Name	Mixin selector
named	get	Lnet/minecraft/server/function/FunctionLoader;get(Lnet/minecraft/util/Identifier;)Ljava/util/Optional;
intermediary	method_29456	Lnet/minecraft/class_5349;method_29456(Lnet/minecraft/class_2960;)Ljava/util/Optional;
official	a	Lalj;a(Lakv;)Ljava/util/Optional;

getFunctions

public Map<Identifier,CommandFunction<ServerCommandSource>> getFunctions()

Mappings:

Namespace	Name	Mixin selector
named	getFunctions	Lnet/minecraft/server/function/FunctionLoader;getFunctions()Ljava/util/Map;
intermediary	method_29447	Lnet/minecraft/class_5349;method_29447()Ljava/util/Map;
official	a	Lalj;a()Ljava/util/Map;

getTagOrEmpty

public List<CommandFunction<ServerCommandSource>> getTagOrEmpty(Identifier id)

Mappings:

Namespace	Name	Mixin selector
named	getTagOrEmpty	Lnet/minecraft/server/function/FunctionLoader;getTagOrEmpty(Lnet/minecraft/util/Identifier;)Ljava/util/List;
intermediary	method_29459	Lnet/minecraft/class_5349;method_29459(Lnet/minecraft/class_2960;)Ljava/util/List;
official	b	Lalj;b(Lakv;)Ljava/util/List;

getTags

public Iterable<Identifier> getTags()

Mappings:

Namespace	Name	Mixin selector
named	getTags	Lnet/minecraft/server/function/FunctionLoader;getTags()Ljava/lang/Iterable;
intermediary	method_29458	Lnet/minecraft/class_5349;method_29458()Ljava/lang/Iterable;
official	b	Lalj;b()Ljava/lang/Iterable;

reload

public CompletableFuture<Void> reload(ResourceReloader.Synchronizer synchronizer,
 ResourceManager manager,
 Executor prepareExecutor,
 Executor applyExecutor)

Performs a reload. Returns a future that is completed when the reload is completed.

In a reload, there is a prepare stage and an apply stage. For the prepare stage, you should create completable futures with CompletableFuture.supplyAsync(..., prepareExecutor) to ensure the prepare actions are done with the prepare executor. Then, you should have a completable future for all the prepared actions, and call combinedPrepare.thenCompose(synchronizer::waitFor) to notify the synchronizer. Finally, you should run CompletableFuture.thenAcceptAsync(..., applyExecutor) for apply actions. In the end, returns the result of thenAcceptAsync.

Specified by:

reload in interface ResourceReloader

Parameters:

synchronizer - the synchronizer

manager - the resource manager

Returns:

a future for the reload

See Also:

• ReloadableResourceManagerImpl.reload(Executor, Executor, CompletableFuture, List)

Mappings:

Namespace	Name	Mixin selector
named	reload	Lnet/minecraft/resource/ResourceReloader;reload(Lnet/minecraft/resource/ResourceReloader$Synchronizer;Lnet/minecraft/resource/ResourceManager;Ljava/util/concurrent/Executor;Ljava/util/concurrent/Executor;)Ljava/util/concurrent/CompletableFuture;
intermediary	method_25931	Lnet/minecraft/class_3302;method_25931(Lnet/minecraft/class_3302$class_4045;Lnet/minecraft/class_3300;Ljava/util/concurrent/Executor;Ljava/util/concurrent/Executor;)Ljava/util/concurrent/CompletableFuture;
official	a	Lauj;a(Lauj$a;Laup;Ljava/util/concurrent/Executor;Ljava/util/concurrent/Executor;)Ljava/util/concurrent/CompletableFuture;

readLines

private static List<String> readLines(Resource resource)

Mappings:

Namespace	Name	Mixin selector
named	readLines	Lnet/minecraft/server/function/FunctionLoader;readLines(Lnet/minecraft/resource/Resource;)Ljava/util/List;
intermediary	method_29450	Lnet/minecraft/class_5349;method_29450(Lnet/minecraft/class_3298;)Ljava/util/List;
official	a	Lalj;a(Laun;)Ljava/util/List;