Paper/patches/server/1019-Item-serialization-as-json.patch
Spottedleaf da9d110d5b Remove chunk save reattempt patch
This patch does not appear to be doing anything useful, and may
hide errors.

Currently, the save logic does not run through this path either
so it did not do anything.

Additionally, properly implement support for handling
RegionFileSizeException in Moonrise.
2024-11-28 18:27:59 -08:00

74 lines
4.8 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: masmc05 <masmc05@gmail.com>
Date: Sun, 11 Aug 2024 03:01:52 +0300
Subject: [PATCH] Item serialization as json
diff --git a/src/main/java/net/minecraft/world/item/component/CustomData.java b/src/main/java/net/minecraft/world/item/component/CustomData.java
index c80fd4960dfbb0fde37363e7df25b0a5411bdb11..ff7f6916f65466c25a7bde35d64682c15b211697 100644
--- a/src/main/java/net/minecraft/world/item/component/CustomData.java
+++ b/src/main/java/net/minecraft/world/item/component/CustomData.java
@@ -28,7 +28,17 @@ import org.slf4j.Logger;
public final class CustomData {
private static final Logger LOGGER = LogUtils.getLogger();
public static final CustomData EMPTY = new CustomData(new CompoundTag());
- public static final Codec<CustomData> CODEC = Codec.withAlternative(CompoundTag.CODEC, TagParser.AS_CODEC)
+ // Paper start - Item serialization as json
+ public static ThreadLocal<Boolean> SERIALIZE_CUSTOM_AS_SNBT = ThreadLocal.withInitial(() -> false);
+ public static final Codec<CustomData> CODEC = Codec.either(CompoundTag.CODEC, TagParser.AS_CODEC)
+ .xmap(com.mojang.datafixers.util.Either::unwrap, data -> { // Both will be used for deserialization, but we decide which one to use for serialization
+ if (!SERIALIZE_CUSTOM_AS_SNBT.get()) {
+ return com.mojang.datafixers.util.Either.left(data); // First codec
+ } else {
+ return com.mojang.datafixers.util.Either.right(data); // Second codec
+ }
+ })
+ // Paper end - Item serialization as json
.xmap(CustomData::new, component -> component.tag);
public static final Codec<CustomData> CODEC_WITH_ID = CODEC.validate(
component -> component.getUnsafe().contains("id", 8) ? DataResult.success(component) : DataResult.error(() -> "Missing id for entity in: " + component)
diff --git a/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java b/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java
index 44c9127c71402afd6f98215b9e66fe5b848db50b..4c82dae4c2d764c8310832b1a209846d4352bae9 100644
--- a/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java
+++ b/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java
@@ -527,6 +527,39 @@ public final class CraftMagicNumbers implements UnsafeValues {
return CraftItemStack.asCraftMirror(net.minecraft.world.item.ItemStack.parse(MinecraftServer.getServer().registryAccess(), compound).orElseThrow());
}
+ @Override
+ public com.google.gson.JsonObject serializeItemAsJson(ItemStack itemStack) {
+ Preconditions.checkNotNull(itemStack, "Cannot serialize empty ItemStack");
+ Preconditions.checkArgument(!itemStack.isEmpty(), "Cannot serialize empty ItemStack");
+
+ net.minecraft.core.RegistryAccess.Frozen reg = net.minecraft.server.MinecraftServer.getServer().registryAccess();
+ com.mojang.serialization.DynamicOps<com.google.gson.JsonElement> ops = reg.createSerializationContext(com.mojang.serialization.JsonOps.INSTANCE);
+ com.google.gson.JsonObject item;
+ // Serialize as SNBT to preserve exact NBT types; vanilla codecs already can handle such deserialization.
+ net.minecraft.world.item.component.CustomData.SERIALIZE_CUSTOM_AS_SNBT.set(true);
+ try {
+ item = net.minecraft.world.item.ItemStack.CODEC.encodeStart(ops, CraftItemStack.unwrap(itemStack)).getOrThrow().getAsJsonObject();
+ } finally {
+ net.minecraft.world.item.component.CustomData.SERIALIZE_CUSTOM_AS_SNBT.set(false);
+ }
+ item.addProperty("DataVersion", this.getDataVersion());
+ return item;
+ }
+
+ @Override
+ public ItemStack deserializeItemFromJson(com.google.gson.JsonObject data) throws IllegalArgumentException {
+ Preconditions.checkNotNull(data, "null cannot be deserialized");
+
+ final int dataVersion = data.get("DataVersion").getAsInt();
+ final int currentVersion = org.bukkit.craftbukkit.util.CraftMagicNumbers.INSTANCE.getDataVersion();
+ data = ca.spottedleaf.dataconverter.minecraft.MCDataConverter.convertJson(
+ ca.spottedleaf.dataconverter.minecraft.datatypes.MCTypeRegistry.ITEM_STACK,
+ data, false, dataVersion, currentVersion
+ );
+ com.mojang.serialization.DynamicOps<com.google.gson.JsonElement> ops = MinecraftServer.getServer().registryAccess().createSerializationContext(com.mojang.serialization.JsonOps.INSTANCE);
+ return CraftItemStack.asCraftMirror(net.minecraft.world.item.ItemStack.CODEC.parse(ops, data).getOrThrow(IllegalArgumentException::new));
+ }
+
@Override
public byte[] serializeEntity(org.bukkit.entity.Entity entity) {
Preconditions.checkNotNull(entity, "null cannot be serialized");