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Paper/patches/api/0432-Improve-Registry.patch

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Wed, 20 Dec 2023 02:03:10 -0800
Subject: [PATCH] Improve Registry
Adds Registry#getKey(Object) which should be the
primary way people get the key for an object. Registry
items need to exist without having a key and so
getKey() methods on Keyed objects that have a registry
are marked as Deprecated or Obsolete.
diff --git a/src/main/java/org/bukkit/MusicInstrument.java b/src/main/java/org/bukkit/MusicInstrument.java
index 62d2b3f950860dee0898d77b0a29635c3f9a7e23..704dba92f9246ef398ed8d162ebee3cf305960e1 100644
--- a/src/main/java/org/bukkit/MusicInstrument.java
+++ b/src/main/java/org/bukkit/MusicInstrument.java
@@ -53,6 +53,16 @@ public abstract class MusicInstrument implements Keyed, net.kyori.adventure.tran
return instrument;
}
+ // Paper start - deprecate getKey
+ /**
+ * @deprecated use {@link Registry#getKey(Keyed)} and {@link Registry#INSTRUMENT}. MusicInstruments
+ * can exist without a key.
+ */
+ @Deprecated
+ @Override
+ public abstract @NotNull NamespacedKey getKey();
+ // Paper end - deprecate getKey
+
// Paper start - translation key
@Override
public @NotNull String translationKey() {
diff --git a/src/main/java/org/bukkit/Registry.java b/src/main/java/org/bukkit/Registry.java
index 17714f04fdd87ed4332ea62bcfab7063560bf1be..27b987db385a594fede4e884b6437dc363f6e817 100644
--- a/src/main/java/org/bukkit/Registry.java
+++ b/src/main/java/org/bukkit/Registry.java
@@ -358,6 +358,79 @@ public interface Registry<T extends Keyed> extends Iterable<T> {
@Nullable
T get(@NotNull NamespacedKey key);
+ // Paper start - improve Registry
+ /**
+ * Gets the object by its key or throws if it doesn't exist.
+ *
+ * @param key the key to get the object of in this registry
+ * @return the object for the key
+ * @throws java.util.NoSuchElementException if the key doesn't point to an object in the registry
+ */
+ default @NotNull T getOrThrow(final net.kyori.adventure.key.@NotNull Key key) {
+ final T value = this.get(key);
+ if (value == null) {
+ throw new java.util.NoSuchElementException("No value for " + key + " in " + this);
+ }
+ return value;
+ }
+
+ /**
+ * Gets the object by its key or throws if it doesn't exist.
+ *
+ * @param key the key to get the object of in this registry
+ * @return the object for the key
+ * @throws java.util.NoSuchElementException if the key doesn't point to an object in the registry
+ */
+ default @NotNull T getOrThrow(final io.papermc.paper.registry.@NotNull TypedKey<T> key) {
+ final T value = this.get(key);
+ if (value == null) {
+ throw new java.util.NoSuchElementException("No value for " + key + " in " + this);
+ }
+ return value;
+ }
+
+ /**
+ * Gets the key for this object or throws if it doesn't exist.
+ * <p>
+ * Some types can exist without being in a registry
+ * and such will have no key associated with them. This
+ * method throw an exception if it isn't in this registry.
+ *
+ * @param value the value to get the key of in this registry
+ * @return the key for the value
+ * @throws java.util.NoSuchElementException if the value doesn't exist in this registry
+ * @see #getKey(Keyed)
+ */
+ default @NotNull NamespacedKey getKeyOrThrow(final @NotNull T value) {
+ Preconditions.checkArgument(value != null, "value cannot be null");
+ final NamespacedKey key = this.getKey(value);
+ if (key == null) {
+ throw new java.util.NoSuchElementException(value + " has no key in " + this);
+ }
+ return key;
+ }
+
+ /**
+ * Get the key for this object.
+ * <p>
+ * Some types can exist without being in a registry
+ * and such will have no key associated with them. This
+ * method will return null.
+ *
+ * @param value the value to get the key of in this registry
+ * @return the key for the value or null if not in the registry
+ * @see #getKeyOrThrow(Keyed)
+ */
+ default @Nullable NamespacedKey getKey(final @NotNull T value) {
+ Preconditions.checkArgument(value != null, "value cannot be null");
+ //noinspection ConstantValue (it might not be in the future...)
+ if (value instanceof Keyed) {
+ return value.getKey();
+ }
+ return null;
+ }
+ // Paper end - improve Registry
+
/**
* Returns a new stream, which contains all registry items, which are registered to the registry.
*
@@ -432,5 +505,12 @@ public interface Registry<T extends Keyed> extends Iterable<T> {
public Class<T> getType() {
return this.type;
}
+
+ // Paper start - improve Registry
+ @Override
+ public @NotNull NamespacedKey getKey(final @NotNull T value) {
+ return value.getKey();
+ }
+ // Paper end - improve Registry
}
}
diff --git a/src/main/java/org/bukkit/block/banner/PatternType.java b/src/main/java/org/bukkit/block/banner/PatternType.java
index 6a6be0287255cf38a735bfc83ec91644dc96b903..1883183157c875d87656fdc86a589e9b95dc4895 100644
--- a/src/main/java/org/bukkit/block/banner/PatternType.java
+++ b/src/main/java/org/bukkit/block/banner/PatternType.java
@@ -69,6 +69,13 @@ public enum PatternType implements Keyed {
this.key = NamespacedKey.minecraft(key);
}
+ // Paper start - deprecate getKey
+ /**
+ * @deprecated use {@link Registry#getKey(Keyed)} and {@link Registry#BANNER_PATTERN}. PatternTypes
+ * can exist without a key.
+ */
+ @Deprecated
+ // Paper end - deprecate getKey
@Override
@NotNull
public NamespacedKey getKey() {
diff --git a/src/main/java/org/bukkit/generator/structure/Structure.java b/src/main/java/org/bukkit/generator/structure/Structure.java
index 1a766e68713d4014783b3224b9395644116784fa..978054ee364f9a3330525b9b50da5325ebb6ef57 100644
--- a/src/main/java/org/bukkit/generator/structure/Structure.java
+++ b/src/main/java/org/bukkit/generator/structure/Structure.java
@@ -60,4 +60,13 @@ public abstract class Structure implements Keyed {
*/
@NotNull
public abstract StructureType getStructureType();
+ // Paper start - deprecate getKey
+ /**
+ * @deprecated use {@link Registry#getKey(Keyed)} and {@link Registry#STRUCTURE}. Structures
+ * can exist without a key.
+ */
+ @Override
+ @Deprecated(since = "1.20.4")
+ public abstract @NotNull NamespacedKey getKey();
+ // Paper end - deprecate getKey
}
diff --git a/src/main/java/org/bukkit/inventory/meta/trim/TrimMaterial.java b/src/main/java/org/bukkit/inventory/meta/trim/TrimMaterial.java
index 941fac4eee338870d8c30cb1f64cab572cf54548..74816d6da4d7c8d2fa8a7b93fdc4bf29c8d12803 100644
--- a/src/main/java/org/bukkit/inventory/meta/trim/TrimMaterial.java
+++ b/src/main/java/org/bukkit/inventory/meta/trim/TrimMaterial.java
@@ -68,4 +68,14 @@ public interface TrimMaterial extends Keyed, Translatable {
@Deprecated(forRemoval = true)
@org.jetbrains.annotations.NotNull String getTranslationKey();
// Paper end - adventure
+
+ // Paper start - Registry#getKey
+ /**
+ * @deprecated use {@link Registry#getKey(Keyed)} and {@link Registry#TRIM_MATERIAL}. TrimMaterials
+ * can exist without a key.
+ */
+ @Deprecated(forRemoval = true, since = "1.20.4")
+ @Override
+ org.bukkit.@org.jetbrains.annotations.NotNull NamespacedKey getKey();
+ // Paper end - Registry#getKey
}
diff --git a/src/main/java/org/bukkit/inventory/meta/trim/TrimPattern.java b/src/main/java/org/bukkit/inventory/meta/trim/TrimPattern.java
index f2242ddc4085f7e7cdd748d860857822e3d9b007..087e99ed281c0b282d91345067bfca80762faa0b 100644
--- a/src/main/java/org/bukkit/inventory/meta/trim/TrimPattern.java
+++ b/src/main/java/org/bukkit/inventory/meta/trim/TrimPattern.java
@@ -100,4 +100,14 @@ public interface TrimPattern extends Keyed, Translatable {
@Deprecated(forRemoval = true)
@org.jetbrains.annotations.NotNull String getTranslationKey();
// Paper end - adventure
+
+ // Paper start - Registry#getKey
+ /**
+ * @deprecated use {@link Registry#getKey(Keyed)} and {@link Registry#TRIM_PATTERN}. TrimPatterns
+ * can exist without a key.
+ */
+ @Deprecated(forRemoval = true, since = "1.20.4")
+ @Override
+ org.bukkit.@org.jetbrains.annotations.NotNull NamespacedKey getKey();
+ // Paper end - Registry#getKey
}
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