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PaperMC/patches/unapplied/server/1018-Make-a-PDC-view-accessible-directly-from-ItemStack.patch
Noah van der Aa d280061a1a
First batch of server patches
2024-10-22 19:28:57 +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, 12 Jun 2024 10:29:40 -0700
Subject: [PATCH] Make a PDC view accessible directly from ItemStack
diff --git a/src/main/java/io/papermc/paper/persistence/PaperPersistentDataContainerView.java b/src/main/java/io/papermc/paper/persistence/PaperPersistentDataContainerView.java
new file mode 100644
index 0000000000000000000000000000000000000000..122c32e82b299cafd7d0c6a9f4818523470c9f05
--- /dev/null
+++ b/src/main/java/io/papermc/paper/persistence/PaperPersistentDataContainerView.java
@@ -0,0 +1,120 @@
+package io.papermc.paper.persistence;
+
+import com.google.common.base.Preconditions;
+import java.io.ByteArrayOutputStream;
+import java.io.DataOutputStream;
+import java.io.IOException;
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.Set;
+import net.minecraft.nbt.CompoundTag;
+import net.minecraft.nbt.NbtIo;
+import net.minecraft.nbt.Tag;
+import org.bukkit.NamespacedKey;
+import org.bukkit.craftbukkit.persistence.CraftPersistentDataAdapterContext;
+import org.bukkit.craftbukkit.persistence.CraftPersistentDataContainer;
+import org.bukkit.craftbukkit.persistence.CraftPersistentDataTypeRegistry;
+import org.bukkit.persistence.PersistentDataAdapterContext;
+import org.bukkit.persistence.PersistentDataContainer;
+import org.bukkit.persistence.PersistentDataType;
+import org.jspecify.annotations.NullMarked;
+import org.jspecify.annotations.Nullable;
+
+@NullMarked
+public abstract class PaperPersistentDataContainerView implements PersistentDataContainerView {
+
+ protected final CraftPersistentDataTypeRegistry registry;
+ protected final CraftPersistentDataAdapterContext adapterContext;
+
+ public PaperPersistentDataContainerView(final CraftPersistentDataTypeRegistry registry) {
+ this.registry = registry;
+ this.adapterContext = new CraftPersistentDataAdapterContext(this.registry);
+ }
+
+ public abstract @Nullable Tag getTag(final String key);
+
+ public abstract CompoundTag toTagCompound();
+
+ @Override
+ public <P, C> boolean has(final NamespacedKey key, final PersistentDataType<P, C> type) {
+ Preconditions.checkArgument(key != null, "The NamespacedKey key cannot be null");
+ Preconditions.checkArgument(type != null, "The provided type cannot be null");
+
+ final Tag value = this.getTag(key.toString());
+ if (value == null) {
+ return false;
+ }
+
+ return this.registry.isInstanceOf(type, value);
+ }
+
+ @Override
+ public boolean has(final NamespacedKey key) {
+ Preconditions.checkArgument(key != null, "The provided key for the custom value was null"); // Paper
+ return this.getTag(key.toString()) != null;
+ }
+
+ @Override
+ public <P, C> @Nullable C get(final NamespacedKey key, final PersistentDataType<P, C> type) {
+ Preconditions.checkArgument(key != null, "The NamespacedKey key cannot be null");
+ Preconditions.checkArgument(type != null, "The provided type cannot be null");
+
+ final Tag value = this.getTag(key.toString());
+ if (value == null) {
+ return null;
+ }
+
+ return type.fromPrimitive(this.registry.extract(type, value), this.adapterContext);
+ }
+
+ @Override
+ public <P, C> C getOrDefault(final NamespacedKey key, final PersistentDataType<P, C> type, final C defaultValue) {
+ final C c = this.get(key, type);
+ return c != null ? c : defaultValue;
+ }
+
+ @Override
+ public Set<NamespacedKey> getKeys() {
+ final Set<String> names = this.toTagCompound().getAllKeys();
+ final Set<NamespacedKey> keys = new HashSet<>(names.size());
+ names.forEach(key -> {
+ final String[] keyPart = key.split(":", 2);
+ if (keyPart.length == 2) {
+ keys.add(new NamespacedKey(keyPart[0], keyPart[1]));
+ }
+ });
+ return Collections.unmodifiableSet(keys);
+ }
+
+ @Override
+ public boolean isEmpty() {
+ return this.toTagCompound().isEmpty();
+ }
+
+ @Override
+ public void copyTo(final PersistentDataContainer other, final boolean replace) {
+ Preconditions.checkArgument(other != null, "The target container cannot be null");
+ final CraftPersistentDataContainer target = (CraftPersistentDataContainer) other;
+ final CompoundTag tag = this.toTagCompound();
+ for (final String key : tag.getAllKeys()) {
+ if (replace || !target.getRaw().containsKey(key)) {
+ target.getRaw().put(key, tag.get(key).copy());
+ }
+ }
+ }
+
+ @Override
+ public PersistentDataAdapterContext getAdapterContext() {
+ return this.adapterContext;
+ }
+
+ @Override
+ public byte[] serializeToBytes() throws IOException {
+ final CompoundTag root = this.toTagCompound();
+ final ByteArrayOutputStream byteArrayOutput = new ByteArrayOutputStream();
+ try (final DataOutputStream dataOutput = new DataOutputStream(byteArrayOutput)) {
+ NbtIo.write(root, dataOutput);
+ return byteArrayOutput.toByteArray();
+ }
+ }
+}
diff --git a/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemStack.java b/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemStack.java
index a3c6d2cbdce60b1cf935d798568b8bb5d97e1229..6081c588c61406d0d21a15e8e6140d5d5240f0a8 100644
--- a/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemStack.java
+++ b/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemStack.java
@@ -484,4 +484,34 @@ public final class CraftItemStack extends ItemStack {
return mirrored;
}
// Paper end
+
+ // Paper start - pdc
+ private net.minecraft.nbt.CompoundTag getPdcTag() {
+ if (this.handle == null) {
+ return new net.minecraft.nbt.CompoundTag();
+ }
+ final net.minecraft.world.item.component.CustomData customData = this.handle.getOrDefault(DataComponents.CUSTOM_DATA, net.minecraft.world.item.component.CustomData.EMPTY);
+ // getUnsafe is OK here because we are only ever *reading* the data so immutability is preserved
+ //noinspection deprecation
+ return customData.getUnsafe().getCompound("PublicBukkitValues");
+ }
+
+ private static final org.bukkit.craftbukkit.persistence.CraftPersistentDataTypeRegistry REGISTRY = new org.bukkit.craftbukkit.persistence.CraftPersistentDataTypeRegistry();
+ private final io.papermc.paper.persistence.PaperPersistentDataContainerView pdcView = new io.papermc.paper.persistence.PaperPersistentDataContainerView(REGISTRY) {
+
+ @Override
+ public net.minecraft.nbt.CompoundTag toTagCompound() {
+ return CraftItemStack.this.getPdcTag();
+ }
+
+ @Override
+ public net.minecraft.nbt.Tag getTag(final String key) {
+ return CraftItemStack.this.getPdcTag().get(key);
+ }
+ };
+ @Override
+ public io.papermc.paper.persistence.PersistentDataContainerView getPersistentDataContainer() {
+ return this.pdcView;
+ }
+ // Paper end - pdc
}
diff --git a/src/main/java/org/bukkit/craftbukkit/persistence/CraftPersistentDataContainer.java b/src/main/java/org/bukkit/craftbukkit/persistence/CraftPersistentDataContainer.java
index f55fdd57ced259ad5a95878840e98ffaa3db2e05..9d867f1659433ea15f281c8b441db7e339013100 100644
--- a/src/main/java/org/bukkit/craftbukkit/persistence/CraftPersistentDataContainer.java
+++ b/src/main/java/org/bukkit/craftbukkit/persistence/CraftPersistentDataContainer.java
@@ -16,11 +16,10 @@ import org.bukkit.persistence.PersistentDataContainer;
import org.bukkit.persistence.PersistentDataType;
import org.jetbrains.annotations.NotNull;
-public class CraftPersistentDataContainer implements PersistentDataContainer {
+public class CraftPersistentDataContainer extends io.papermc.paper.persistence.PaperPersistentDataContainerView implements PersistentDataContainer { // Paper - split up view and mutable
private final Map<String, Tag> customDataTags = new HashMap<>();
- private final CraftPersistentDataTypeRegistry registry;
- private final CraftPersistentDataAdapterContext adapterContext;
+ // Paper - move to PersistentDataContainerView
public CraftPersistentDataContainer(Map<String, Tag> customTags, CraftPersistentDataTypeRegistry registry) {
this(registry);
@@ -28,10 +27,15 @@ public class CraftPersistentDataContainer implements PersistentDataContainer {
}
public CraftPersistentDataContainer(CraftPersistentDataTypeRegistry registry) {
- this.registry = registry;
- this.adapterContext = new CraftPersistentDataAdapterContext(this.registry);
+ super(registry); // Paper - move to PersistentDataContainerView
}
+ // Paper start
+ @Override
+ public Tag getTag(final String key) {
+ return this.customDataTags.get(key);
+ }
+ // Paper end
@Override
public <T, Z> void set(@NotNull NamespacedKey key, @NotNull PersistentDataType<T, Z> type, @NotNull Z value) {
@@ -42,44 +46,7 @@ public class CraftPersistentDataContainer implements PersistentDataContainer {
this.customDataTags.put(key.toString(), this.registry.wrap(type, type.toPrimitive(value, this.adapterContext)));
}
- @Override
- public <T, Z> boolean has(@NotNull NamespacedKey key, @NotNull PersistentDataType<T, Z> type) {
- Preconditions.checkArgument(key != null, "The NamespacedKey key cannot be null");
- Preconditions.checkArgument(type != null, "The provided type cannot be null");
-
- Tag value = this.customDataTags.get(key.toString());
- if (value == null) {
- return false;
- }
-
- return this.registry.isInstanceOf(type, value);
- }
-
- @Override
- public boolean has(NamespacedKey key) {
- Preconditions.checkArgument(key != null, "The provided key for the custom value was null"); // Paper
- return this.customDataTags.get(key.toString()) != null;
- }
-
- @Override
- public <T, Z> Z get(@NotNull NamespacedKey key, @NotNull PersistentDataType<T, Z> type) {
- Preconditions.checkArgument(key != null, "The NamespacedKey key cannot be null");
- Preconditions.checkArgument(type != null, "The provided type cannot be null");
-
- Tag value = this.customDataTags.get(key.toString());
- if (value == null) {
- return null;
- }
-
- return type.fromPrimitive(this.registry.extract(type, value), this.adapterContext);
- }
-
- @NotNull
- @Override
- public <T, Z> Z getOrDefault(@NotNull NamespacedKey key, @NotNull PersistentDataType<T, Z> type, @NotNull Z defaultValue) {
- Z z = this.get(key, type);
- return z != null ? z : defaultValue;
- }
+ // Paper - move to PersistentDataContainerView
@NotNull
@Override
@@ -186,16 +153,7 @@ public class CraftPersistentDataContainer implements PersistentDataContainer {
// Paper end
// Paper start - byte array serialization
- @Override
- public byte[] serializeToBytes() throws java.io.IOException {
- final net.minecraft.nbt.CompoundTag root = this.toTagCompound();
- final java.io.ByteArrayOutputStream byteArrayOutput = new java.io.ByteArrayOutputStream();
- try (final java.io.DataOutputStream dataOutput = new java.io.DataOutputStream(byteArrayOutput)) {
- net.minecraft.nbt.NbtIo.write(root, dataOutput);
- return byteArrayOutput.toByteArray();
- }
- }
-
+ // Paper - move to PersistentDataContainerView
@Override
public void readFromBytes(final byte[] bytes, final boolean clear) throws java.io.IOException {
if (clear) {
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