242 lines
12 KiB
Diff
242 lines
12 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Jake Potrebic <jake.m.potrebic@gmail.com>
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Date: Wed, 2 Mar 2022 13:33:08 -0800
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Subject: [PATCH] Add PaperRegistry
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PaperRegistry is a server-backed impl of bukkit's Registry interface
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diff --git a/src/main/java/io/papermc/paper/registry/PaperRegistry.java b/src/main/java/io/papermc/paper/registry/PaperRegistry.java
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new file mode 100644
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index 0000000000000000000000000000000000000000..7c265d27da034986be73921d35bf08ae250b42f3
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--- /dev/null
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+++ b/src/main/java/io/papermc/paper/registry/PaperRegistry.java
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@@ -0,0 +1,167 @@
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+package io.papermc.paper.registry;
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+
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+import com.google.common.base.Preconditions;
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+import com.google.common.base.Suppliers;
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+import net.minecraft.core.Holder;
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+import net.minecraft.core.Registry;
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+import net.minecraft.core.RegistryAccess;
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+import net.minecraft.resources.ResourceKey;
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+import net.minecraft.resources.ResourceLocation;
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+import net.minecraft.server.MinecraftServer;
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+import org.bukkit.Keyed;
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+import org.bukkit.NamespacedKey;
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+import org.bukkit.craftbukkit.util.CraftNamespacedKey;
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+import org.checkerframework.checker.nullness.qual.NonNull;
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+import org.checkerframework.checker.nullness.qual.Nullable;
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+import org.checkerframework.framework.qual.DefaultQualifier;
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+
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+import java.util.Collections;
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+import java.util.HashMap;
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+import java.util.Iterator;
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+import java.util.Map;
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+import java.util.Objects;
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+import java.util.Optional;
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+import java.util.concurrent.ConcurrentHashMap;
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+import java.util.function.Consumer;
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+import java.util.function.Supplier;
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+
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+@DefaultQualifier(NonNull.class)
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+public abstract class PaperRegistry<API extends Keyed, MINECRAFT> implements org.bukkit.Registry<API> {
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+
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+ @SuppressWarnings("FieldMayBeFinal") // non-final for testing
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+ private static Supplier<RegistryAccess> REGISTRY_ACCESS = Suppliers.memoize(() -> MinecraftServer.getServer().registryAccess());
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+ private static final Map<RegistryKey<?, ?>, PaperRegistry<?, ?>> INTERNAL_REGISTRIES = new HashMap<>();
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+ public static final Map<RegistryKey<?, ?>, PaperRegistry<?, ?>> REGISTRIES = Collections.unmodifiableMap(INTERNAL_REGISTRIES);
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+ private static final Map<Class<?>, PaperRegistry<?, ?>> REGISTRY_BY_API_CLASS = new HashMap<>();
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+ private static final Map<ResourceKey<? extends Registry<?>>, PaperRegistry<?, ?>> REGISTRY_BY_RES_KEY = new HashMap<>();
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+
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+ private boolean registered;
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+ private final RegistryKey<API, MINECRAFT> registryKey;
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+ private final Supplier<Registry<MINECRAFT>> registry;
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+ private final Map<NamespacedKey, API> cache = new ConcurrentHashMap<>();
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+ private final Map<NamespacedKey, ResourceKey<MINECRAFT>> resourceKeyCache = new ConcurrentHashMap<>();
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+
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+ public PaperRegistry(RegistryKey<API, MINECRAFT> registryKey) {
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+ this.registryKey = registryKey;
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+ this.registry = Suppliers.memoize(() -> REGISTRY_ACCESS.get().registryOrThrow(this.registryKey.resourceKey()));
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+ }
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+
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+ @Override
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+ public @Nullable API get(NamespacedKey key) {
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+ return this.cache.computeIfAbsent(key, k -> {
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+ final @Nullable MINECRAFT nms = this.registry.get().get(CraftNamespacedKey.toMinecraft(k));
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+ if (nms != null) {
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+ return this.convertToApi(k, nms);
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+ }
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+ return null;
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+ });
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+ }
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+
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+ public abstract @Nullable API convertToApi(NamespacedKey key, MINECRAFT nms);
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+
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+ public API convertToApiOrThrow(ResourceLocation resourceLocation, MINECRAFT nms) {
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+ return Objects.requireNonNull(this.convertToApi(resourceLocation, nms), resourceLocation + " has a null api representation");
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+ }
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+
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+ public @Nullable API convertToApi(ResourceLocation resourceLocation, MINECRAFT nms) {
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+ return this.convertToApi(CraftNamespacedKey.fromMinecraft(resourceLocation), nms);
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+ }
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+
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+ public API convertToApiOrThrow(Holder<MINECRAFT> nmsHolder) {
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+ return Objects.requireNonNull(this.convertToApi(nmsHolder), nmsHolder + " has a null api representation");
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+ }
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+
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+ public @Nullable API convertToApi(Holder<MINECRAFT> nmsHolder) {
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+ final Optional<ResourceKey<MINECRAFT>> key = nmsHolder.unwrapKey();
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+ if (nmsHolder.isBound() && key.isPresent()) {
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+ return this.convertToApi(key.get().location(), nmsHolder.value());
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+ } else if (!nmsHolder.isBound() && key.isPresent()) {
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+ return this.convertToApi(key.get().location(), this.registry.get().getOrThrow(key.get()));
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+ } else if (nmsHolder.isBound() && key.isEmpty()) {
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+ final @Nullable ResourceLocation loc = this.registry.get().getKey(nmsHolder.value());
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+ if (loc != null) {
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+ return this.convertToApi(loc, nmsHolder.value());
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+ }
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+ }
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+ throw new IllegalStateException("Cannot convert " + nmsHolder + " to an API type in: " + this.registryKey);
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+ }
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+
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+ public void convertToApi(Iterable<Holder<MINECRAFT>> holders, Consumer<API> apiConsumer, boolean throwOnNull) {
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+ for (Holder<MINECRAFT> holder : holders) {
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+ final @Nullable API api = this.convertToApi(holder);
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+ if (api == null && throwOnNull) {
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+ throw new NullPointerException(holder + " has a null api representation");
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+ } else if (api != null) {
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+ apiConsumer.accept(api);
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+ }
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+ }
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+ }
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+
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+ public MINECRAFT getMinecraftValue(API apiValue) {
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+ return this.registry.get().getOptional(CraftNamespacedKey.toMinecraft(apiValue.getKey())).orElseThrow();
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+ }
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+
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+ public Holder<MINECRAFT> getMinecraftHolder(API apiValue) {
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+ return this.registry.get().getHolderOrThrow(this.resourceKeyCache.computeIfAbsent(apiValue.getKey(), key -> ResourceKey.create(this.registryKey.resourceKey(), CraftNamespacedKey.toMinecraft(key))));
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+ }
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+
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+ @Override
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+ public Iterator<API> iterator() {
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+ return this.registry.get().keySet().stream().map(key -> this.get(CraftNamespacedKey.fromMinecraft(key))).iterator();
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+ }
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+
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+ public void clearCache() {
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+ this.cache.clear();
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+ }
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+
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+ public void register() {
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+ if (this.registered) {
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+ throw new IllegalStateException("Already registered: " + this.registryKey.apiClass());
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+ }
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+ INTERNAL_REGISTRIES.put(this.registryKey, this);
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+ REGISTRY_BY_API_CLASS.put(this.registryKey.apiClass(), this);
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+ REGISTRY_BY_RES_KEY.put(this.registryKey.resourceKey(), this);
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+ this.registered = true;
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+ }
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+
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+ @Override
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+ public boolean equals(@Nullable Object o) {
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+ if (this == o) return true;
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+ if (o == null || !PaperRegistry.class.isAssignableFrom(o.getClass())) return false;
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+ PaperRegistry<?, ?> that = (PaperRegistry<?, ?>) o;
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+ return this.registryKey.equals(that.registryKey);
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+ }
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+
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+ @Override
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+ public int hashCode() {
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+ return Objects.hash(this.registryKey);
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+ }
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+
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+ protected static <T> Supplier<Registry<T>> registryFor(ResourceKey<? extends Registry<T>> registryKey) {
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+ return Suppliers.memoize(() -> REGISTRY_ACCESS.get().registryOrThrow(registryKey));
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+ }
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+
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+ public static void clearCaches() {
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+ for (PaperRegistry<?, ?> registry : INTERNAL_REGISTRIES.values()) {
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+ registry.clearCache();
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+ }
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+ }
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+
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+ @SuppressWarnings("unchecked")
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+ public static <T extends Keyed> PaperRegistry<T, ?> getRegistry(Class<T> classOfT) {
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+ Preconditions.checkArgument(REGISTRY_BY_API_CLASS.containsKey(classOfT), "No registry for that type");
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+ return (PaperRegistry<T, ?>) REGISTRY_BY_API_CLASS.get(classOfT);
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+ }
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+
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+ @SuppressWarnings("unchecked")
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+ public static <T> PaperRegistry<?, T> getRegistry(ResourceKey<? extends Registry<T>> resourceKey) {
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+ Preconditions.checkArgument(REGISTRY_BY_RES_KEY.containsKey(resourceKey));
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+ return (PaperRegistry<?, T>) REGISTRY_BY_RES_KEY.get(resourceKey);
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+ }
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+
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+ @SuppressWarnings("unchecked")
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+ public static <A extends Keyed, M> PaperRegistry<A, M> getRegistry(RegistryKey<A, M> registryKey) {
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+ Preconditions.checkArgument(INTERNAL_REGISTRIES.containsKey(registryKey));
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+ return (PaperRegistry<A, M>) INTERNAL_REGISTRIES.get(registryKey);
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+ }
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+}
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diff --git a/src/main/java/io/papermc/paper/registry/RegistryKey.java b/src/main/java/io/papermc/paper/registry/RegistryKey.java
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new file mode 100644
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index 0000000000000000000000000000000000000000..6f39e343147803e15e7681c993b8797a629702e7
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--- /dev/null
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+++ b/src/main/java/io/papermc/paper/registry/RegistryKey.java
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@@ -0,0 +1,8 @@
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+package io.papermc.paper.registry;
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+
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+import net.minecraft.core.Registry;
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+import net.minecraft.resources.ResourceKey;
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+import org.bukkit.Keyed;
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+
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+public record RegistryKey<API extends Keyed, MINECRAFT>(Class<API> apiClass, ResourceKey<? extends Registry<MINECRAFT>> resourceKey) {
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+}
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diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
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index 4e2b59449f0916927fb4426a0e87b85ca17cbfcd..2dbd4718b98f90842600ae4cde927b09d5fc738b 100644
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--- a/src/main/java/net/minecraft/server/MinecraftServer.java
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+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
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@@ -1998,6 +1998,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
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this.packRepository.setSelected(dataPacks);
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this.worldData.setDataPackConfig(MinecraftServer.getSelectedPacks(this.packRepository));
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this.resources.managers.updateRegistryTags(this.registryAccess());
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+ io.papermc.paper.registry.PaperRegistry.clearCaches(); // Paper
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new io.papermc.paper.event.server.ServerResourcesReloadedEvent(cause).callEvent(); // Paper
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if (Thread.currentThread() != this.serverThread) return; // Paper
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//this.getPlayerList().saveAll(); // Paper - we don't need to do this
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diff --git a/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java b/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java
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index 4192a6eff940bfe7823f100d4156f5c4d82d994c..e4855c7652b6904b402e38144664266d8f757f73 100644
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--- a/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java
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+++ b/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java
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@@ -512,6 +512,11 @@ public final class CraftMagicNumbers implements UnsafeValues {
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public int nextEntityId() {
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return net.minecraft.world.entity.Entity.nextEntityId();
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}
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+
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+ @Override
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+ public <T extends org.bukkit.Keyed> Registry<T> registryFor(Class<T> classOfT) {
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+ return io.papermc.paper.registry.PaperRegistry.getRegistry(classOfT);
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+ }
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// Paper end
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/**
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diff --git a/src/test/java/org/bukkit/support/AbstractTestingBase.java b/src/test/java/org/bukkit/support/AbstractTestingBase.java
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index b58962026c739ed06fbe0f702cb2877fbfa7b2e4..b135f36a3b75f150781bd1e2d5852f18862a6a3a 100644
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--- a/src/test/java/org/bukkit/support/AbstractTestingBase.java
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+++ b/src/test/java/org/bukkit/support/AbstractTestingBase.java
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@@ -38,6 +38,15 @@ public abstract class AbstractTestingBase {
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MultiPackResourceManager resourceManager = new MultiPackResourceManager(PackType.SERVER_DATA, Collections.singletonList(new VanillaPackResources(ServerPacksSource.BUILT_IN_METADATA, "minecraft")));
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// add tags and loot tables for unit tests
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RegistryAccess.Frozen registry = RegistryAccess.builtinCopy().freeze();
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+ // Paper start
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+ try {
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+ java.lang.reflect.Field field = io.papermc.paper.registry.PaperRegistry.class.getDeclaredField("REGISTRY_ACCESS");
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+ field.trySetAccessible();
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+ field.set(null, com.google.common.base.Suppliers.ofInstance(registry));
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+ } catch (ReflectiveOperationException ex) {
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+ throw new IllegalStateException("Could not reflectively set RegistryAccess in PaperRegistry", ex);
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+ }
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+ // Paper end
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// Register vanilla pack
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DATA_PACK = ReloadableServerResources.loadResources(resourceManager, registry, Commands.CommandSelection.DEDICATED, 0, MoreExecutors.directExecutor(), MoreExecutors.directExecutor()).join();
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// Bind tags
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