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0ddd20c6f7
Paper/patches/server/0568-Add-PaperRegistry.patch
Nassim Jahnke 0ddd20c6f7
Updated Upstream (CraftBukkit/Spigot) 
Upstream has released updates that appear to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing

CraftBukkit Changes:
ead719a65 SPIGOT-7136: Cancelling PlayerInteractEntityEvent with the Allay desyncs
8468e167e SPIGOT-7137: StructureGrowEvent isFromBonemeal and getPlayer have incorrect values
d45057c59 SPIGOT-7089: Crash when command blocks attempt to load worlds

Spigot Changes:
450dcaa8 Rebuild patches
2022-08-14 10:03:13 +02:00

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Wed, 2 Mar 2022 13:33:08 -0800
Subject: [PATCH] Add PaperRegistry
PaperRegistry is a server-backed impl of bukkit's Registry interface
diff --git a/src/main/java/io/papermc/paper/registry/PaperRegistry.java b/src/main/java/io/papermc/paper/registry/PaperRegistry.java
new file mode 100644
index 0000000000000000000000000000000000000000..7c265d27da034986be73921d35bf08ae250b42f3
--- /dev/null
+++ b/src/main/java/io/papermc/paper/registry/PaperRegistry.java
@@ -0,0 +1,167 @@
+package io.papermc.paper.registry;
+
+import com.google.common.base.Preconditions;
+import com.google.common.base.Suppliers;
+import net.minecraft.core.Holder;
+import net.minecraft.core.Registry;
+import net.minecraft.core.RegistryAccess;
+import net.minecraft.resources.ResourceKey;
+import net.minecraft.resources.ResourceLocation;
+import net.minecraft.server.MinecraftServer;
+import org.bukkit.Keyed;
+import org.bukkit.NamespacedKey;
+import org.bukkit.craftbukkit.util.CraftNamespacedKey;
+import org.checkerframework.checker.nullness.qual.NonNull;
+import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.framework.qual.DefaultQualifier;
+
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.Map;
+import java.util.Objects;
+import java.util.Optional;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.function.Consumer;
+import java.util.function.Supplier;
+
+@DefaultQualifier(NonNull.class)
+public abstract class PaperRegistry<API extends Keyed, MINECRAFT> implements org.bukkit.Registry<API> {
+
+ @SuppressWarnings("FieldMayBeFinal") // non-final for testing
+ private static Supplier<RegistryAccess> REGISTRY_ACCESS = Suppliers.memoize(() -> MinecraftServer.getServer().registryAccess());
+ private static final Map<RegistryKey<?, ?>, PaperRegistry<?, ?>> INTERNAL_REGISTRIES = new HashMap<>();
+ public static final Map<RegistryKey<?, ?>, PaperRegistry<?, ?>> REGISTRIES = Collections.unmodifiableMap(INTERNAL_REGISTRIES);
+ private static final Map<Class<?>, PaperRegistry<?, ?>> REGISTRY_BY_API_CLASS = new HashMap<>();
+ private static final Map<ResourceKey<? extends Registry<?>>, PaperRegistry<?, ?>> REGISTRY_BY_RES_KEY = new HashMap<>();
+
+ private boolean registered;
+ private final RegistryKey<API, MINECRAFT> registryKey;
+ private final Supplier<Registry<MINECRAFT>> registry;
+ private final Map<NamespacedKey, API> cache = new ConcurrentHashMap<>();
+ private final Map<NamespacedKey, ResourceKey<MINECRAFT>> resourceKeyCache = new ConcurrentHashMap<>();
+
+ public PaperRegistry(RegistryKey<API, MINECRAFT> registryKey) {
+ this.registryKey = registryKey;
+ this.registry = Suppliers.memoize(() -> REGISTRY_ACCESS.get().registryOrThrow(this.registryKey.resourceKey()));
+ }
+
+ @Override
+ public @Nullable API get(NamespacedKey key) {
+ return this.cache.computeIfAbsent(key, k -> {
+ final @Nullable MINECRAFT nms = this.registry.get().get(CraftNamespacedKey.toMinecraft(k));
+ if (nms != null) {
+ return this.convertToApi(k, nms);
+ }
+ return null;
+ });
+ }
+
+ public abstract @Nullable API convertToApi(NamespacedKey key, MINECRAFT nms);
+
+ public API convertToApiOrThrow(ResourceLocation resourceLocation, MINECRAFT nms) {
+ return Objects.requireNonNull(this.convertToApi(resourceLocation, nms), resourceLocation + " has a null api representation");
+ }
+
+ public @Nullable API convertToApi(ResourceLocation resourceLocation, MINECRAFT nms) {
+ return this.convertToApi(CraftNamespacedKey.fromMinecraft(resourceLocation), nms);
+ }
+
+ public API convertToApiOrThrow(Holder<MINECRAFT> nmsHolder) {
+ return Objects.requireNonNull(this.convertToApi(nmsHolder), nmsHolder + " has a null api representation");
+ }
+
+ public @Nullable API convertToApi(Holder<MINECRAFT> nmsHolder) {
+ final Optional<ResourceKey<MINECRAFT>> key = nmsHolder.unwrapKey();
+ if (nmsHolder.isBound() && key.isPresent()) {
+ return this.convertToApi(key.get().location(), nmsHolder.value());
+ } else if (!nmsHolder.isBound() && key.isPresent()) {
+ return this.convertToApi(key.get().location(), this.registry.get().getOrThrow(key.get()));
+ } else if (nmsHolder.isBound() && key.isEmpty()) {
+ final @Nullable ResourceLocation loc = this.registry.get().getKey(nmsHolder.value());
+ if (loc != null) {
+ return this.convertToApi(loc, nmsHolder.value());
+ }
+ }
+ throw new IllegalStateException("Cannot convert " + nmsHolder + " to an API type in: " + this.registryKey);
+ }
+
+ public void convertToApi(Iterable<Holder<MINECRAFT>> holders, Consumer<API> apiConsumer, boolean throwOnNull) {
+ for (Holder<MINECRAFT> holder : holders) {
+ final @Nullable API api = this.convertToApi(holder);
+ if (api == null && throwOnNull) {
+ throw new NullPointerException(holder + " has a null api representation");
+ } else if (api != null) {
+ apiConsumer.accept(api);
+ }
+ }
+ }
+
+ public MINECRAFT getMinecraftValue(API apiValue) {
+ return this.registry.get().getOptional(CraftNamespacedKey.toMinecraft(apiValue.getKey())).orElseThrow();
+ }
+
+ public Holder<MINECRAFT> getMinecraftHolder(API apiValue) {
+ return this.registry.get().getHolderOrThrow(this.resourceKeyCache.computeIfAbsent(apiValue.getKey(), key -> ResourceKey.create(this.registryKey.resourceKey(), CraftNamespacedKey.toMinecraft(key))));
+ }
+
+ @Override
+ public Iterator<API> iterator() {
+ return this.registry.get().keySet().stream().map(key -> this.get(CraftNamespacedKey.fromMinecraft(key))).iterator();
+ }
+
+ public void clearCache() {
+ this.cache.clear();
+ }
+
+ public void register() {
+ if (this.registered) {
+ throw new IllegalStateException("Already registered: " + this.registryKey.apiClass());
+ }
+ INTERNAL_REGISTRIES.put(this.registryKey, this);
+ REGISTRY_BY_API_CLASS.put(this.registryKey.apiClass(), this);
+ REGISTRY_BY_RES_KEY.put(this.registryKey.resourceKey(), this);
+ this.registered = true;
+ }
+
+ @Override
+ public boolean equals(@Nullable Object o) {
+ if (this == o) return true;
+ if (o == null || !PaperRegistry.class.isAssignableFrom(o.getClass())) return false;
+ PaperRegistry<?, ?> that = (PaperRegistry<?, ?>) o;
+ return this.registryKey.equals(that.registryKey);
+ }
+
+ @Override
+ public int hashCode() {
+ return Objects.hash(this.registryKey);
+ }
+
+ protected static <T> Supplier<Registry<T>> registryFor(ResourceKey<? extends Registry<T>> registryKey) {
+ return Suppliers.memoize(() -> REGISTRY_ACCESS.get().registryOrThrow(registryKey));
+ }
+
+ public static void clearCaches() {
+ for (PaperRegistry<?, ?> registry : INTERNAL_REGISTRIES.values()) {
+ registry.clearCache();
+ }
+ }
+
+ @SuppressWarnings("unchecked")
+ public static <T extends Keyed> PaperRegistry<T, ?> getRegistry(Class<T> classOfT) {
+ Preconditions.checkArgument(REGISTRY_BY_API_CLASS.containsKey(classOfT), "No registry for that type");
+ return (PaperRegistry<T, ?>) REGISTRY_BY_API_CLASS.get(classOfT);
+ }
+
+ @SuppressWarnings("unchecked")
+ public static <T> PaperRegistry<?, T> getRegistry(ResourceKey<? extends Registry<T>> resourceKey) {
+ Preconditions.checkArgument(REGISTRY_BY_RES_KEY.containsKey(resourceKey));
+ return (PaperRegistry<?, T>) REGISTRY_BY_RES_KEY.get(resourceKey);
+ }
+
+ @SuppressWarnings("unchecked")
+ public static <A extends Keyed, M> PaperRegistry<A, M> getRegistry(RegistryKey<A, M> registryKey) {
+ Preconditions.checkArgument(INTERNAL_REGISTRIES.containsKey(registryKey));
+ return (PaperRegistry<A, M>) INTERNAL_REGISTRIES.get(registryKey);
+ }
+}
diff --git a/src/main/java/io/papermc/paper/registry/RegistryKey.java b/src/main/java/io/papermc/paper/registry/RegistryKey.java
new file mode 100644
index 0000000000000000000000000000000000000000..6f39e343147803e15e7681c993b8797a629702e7
--- /dev/null
+++ b/src/main/java/io/papermc/paper/registry/RegistryKey.java
@@ -0,0 +1,8 @@
+package io.papermc.paper.registry;
+
+import net.minecraft.core.Registry;
+import net.minecraft.resources.ResourceKey;
+import org.bukkit.Keyed;
+
+public record RegistryKey<API extends Keyed, MINECRAFT>(Class<API> apiClass, ResourceKey<? extends Registry<MINECRAFT>> resourceKey) {
+}
diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
index 5c3b5cb0ffc3920da82b525bbc7a8963c981c595..d60439d49de781b12af6fbe4ff89b7270f57cbeb 100644
--- a/src/main/java/net/minecraft/server/MinecraftServer.java
+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
@@ -2026,6 +2026,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
this.packRepository.setSelected(dataPacks);
this.worldData.setDataPackConfig(MinecraftServer.getSelectedPacks(this.packRepository));
this.resources.managers.updateRegistryTags(this.registryAccess());
+ io.papermc.paper.registry.PaperRegistry.clearCaches(); // Paper
new io.papermc.paper.event.server.ServerResourcesReloadedEvent(cause).callEvent(); // Paper
// Paper start
if (Thread.currentThread() != this.serverThread) {
diff --git a/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java b/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java
index 3f45ebeb31264f5f9a99123894fe07bd8e4c65d8..dc034bd793842e02f0fea54d1ae49ac7a66af597 100644
--- a/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java
+++ b/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java
@@ -512,6 +512,11 @@ public final class CraftMagicNumbers implements UnsafeValues {
public int nextEntityId() {
return net.minecraft.world.entity.Entity.nextEntityId();
}
+
+ @Override
+ public <T extends org.bukkit.Keyed> Registry<T> registryFor(Class<T> classOfT) {
+ return io.papermc.paper.registry.PaperRegistry.getRegistry(classOfT);
+ }
// Paper end
/**
diff --git a/src/test/java/org/bukkit/support/AbstractTestingBase.java b/src/test/java/org/bukkit/support/AbstractTestingBase.java
index e73a9a957cd55bf838e301ed531295162f2cfb89..23435a5914a29ac4f87ad0f34ce83842422df49f 100644
--- a/src/test/java/org/bukkit/support/AbstractTestingBase.java
+++ b/src/test/java/org/bukkit/support/AbstractTestingBase.java
@@ -39,6 +39,15 @@ public abstract class AbstractTestingBase {
MultiPackResourceManager resourceManager = new MultiPackResourceManager(PackType.SERVER_DATA, Collections.singletonList(new VanillaPackResources(ServerPacksSource.BUILT_IN_METADATA, "minecraft")));
// add tags and loot tables for unit tests
REGISTRY_CUSTOM = RegistryAccess.builtinCopy().freeze();
+ // Paper start
+ try {
+ java.lang.reflect.Field field = io.papermc.paper.registry.PaperRegistry.class.getDeclaredField("REGISTRY_ACCESS");
+ field.trySetAccessible();
+ field.set(null, com.google.common.base.Suppliers.ofInstance(REGISTRY_CUSTOM));
+ } catch (ReflectiveOperationException ex) {
+ throw new IllegalStateException("Could not reflectively set RegistryAccess in PaperRegistry", ex);
+ }
+ // Paper end
// Register vanilla pack
DATA_PACK = ReloadableServerResources.loadResources(resourceManager, REGISTRY_CUSTOM, Commands.CommandSelection.DEDICATED, 0, MoreExecutors.directExecutor(), MoreExecutors.directExecutor()).join();
// Bind tags
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