fix API8 datafixers

invalid/main/java/org/spongepowered/common/data/fixer/entity/player/PlayerRespawnData.java

@@ -25,6 +25,9 @@
 package org.spongepowered.common.data.fixer.entity.player;
 
 import com.google.common.collect.Maps;
+import com.mojang.datafixers.DataFix;
+import com.mojang.datafixers.TypeRewriteRule;
+import com.mojang.datafixers.schemas.Schema;
 import net.minecraft.nbt.CompoundNBT;
 import net.minecraft.nbt.ListNBT;
 import net.minecraft.util.datafix.IFixableData;
@@ -35,12 +38,13 @@
 import java.util.Map;
 import java.util.UUID;
 
-public class PlayerRespawnData implements IFixableData {
+// TODO this is actually doing nothing?
+public class PlayerRespawnData extends DataFix {
 
-    @Override
-    public int getFixVersion() {
-        return Constants.Sponge.PlayerData.RESPAWN_DATA_1_9_VERSION;
+    public PlayerRespawnData(Schema outputSchema, boolean changesType) {
+        super(outputSchema, changesType);
     }
+    FixTypes.PLAYER,
 
     @Override
     public CompoundNBT fixTagCompound(CompoundNBT compound) {
@@ -71,4 +75,9 @@ public CompoundNBT fixTagCompound(CompoundNBT compound) {
         }
         return compound;
     }
+
+    @Override
+    protected TypeRewriteRule makeRule() {
+        return null;
+    }
 }

invalid/main/java/org/spongepowered/common/data/util/DataUtil.java

@@ -43,16 +43,8 @@
 
 public class DataUtil {
 
-
-    public static final DataFixer spongeDataFixer = new DataFixer(Constants.Sponge.SPONGE_DATA_VERSION);
     private static final Supplier<InvalidDataException> INVALID_DATA_EXCEPTION_SUPPLIER = InvalidDataException::new;
 
-    static {
-        spongeDataFixer.registerFix(FixTypes.LEVEL, new SpongeLevelFixer());
-        spongeDataFixer.registerFix(FixTypes.ENTITY, new EntityTrackedUser());
-        spongeDataFixer.registerFix(FixTypes.PLAYER, new PlayerRespawnData());
-    }
-
     @SuppressWarnings("rawtypes")
     public static <T> T getData(final DataView dataView, final Key<? extends Value<T>> key) throws InvalidDataException {
         checkDataExists(dataView, checkNotNull(key).getQuery());

src/main/java/org/spongepowered/common/data/SpongeDataManager.java

@@ -27,13 +27,16 @@
 import com.google.common.base.Preconditions;
 import com.google.common.collect.ImmutableList;
 import com.google.common.collect.MapMaker;
-import com.google.common.collect.Maps;
 import com.google.common.reflect.TypeToken;
 import com.google.inject.Inject;
 import com.google.inject.Singleton;
+import com.mojang.datafixers.DataFixer;
+import com.mojang.datafixers.DataFixerBuilder;
+import com.mojang.datafixers.schemas.Schema;
 import net.minecraft.nbt.CompoundNBT;
 import net.minecraft.nbt.INBT;
 import net.minecraft.nbt.ListNBT;
+import net.minecraft.util.Util;
 import net.minecraft.util.registry.Registry;
 import ninja.leaping.configurate.objectmapping.serialize.TypeSerializers;
 import org.spongepowered.api.CatalogKey;
@@ -62,6 +65,9 @@
 import org.spongepowered.common.SpongeImpl;
 import org.spongepowered.common.bridge.data.CustomDataHolderBridge;
 import org.spongepowered.common.config.DataSerializableTypeSerializer;
+import org.spongepowered.common.data.fixer.entity.EntityTrackedUser;
+import org.spongepowered.common.data.fixer.world.SpongeLevelFixer;
+import org.spongepowered.common.data.key.KeyBasedDataListener;
 import org.spongepowered.common.data.persistence.NbtTranslator;
 import org.spongepowered.common.registry.MappedRegistry;
 import org.spongepowered.common.registry.SpongeCatalogRegistry;
@@ -91,6 +97,16 @@ public final class SpongeDataManager implements DataManager {
         );
     }
 
+
+    public static final DataFixer spongeDataFixer = addFixers(new DataFixerBuilder(Constants.Sponge.SPONGE_DATA_VERSION)).build(Util.getServerExecutor());
+
+    static DataFixerBuilder addFixers(DataFixerBuilder builder) {
+        builder.addFixer(new SpongeLevelFixer(builder.addSchema(Constants.Legacy.World.WORLD_UUID_1_9_VERSION, Schema::new), true));
+        builder.addFixer(new EntityTrackedUser(builder.addSchema(Constants.Legacy.Entity.TRACKER_ID_VERSION, Schema::new), true));
+// TODO this fixer did nothing       builder.addFixer(new PlayerRespawnData(builder.addSchema( Constants.Sponge.PlayerData.RESPAWN_DATA_1_9_VERSION, Schema::new), true));
+        return builder;
+    }
+
     // Builders
     private final Map<Class<?>, DataBuilder<?>> builders = new IdentityHashMap<>();
 

src/main/java/org/spongepowered/common/data/fixer/entity/EntityTrackedUser.java

@@ -0,0 +1,69 @@
+/*
+ * This file is part of Sponge, licensed under the MIT License (MIT).
+ *
+ * Copyright (c) SpongePowered <https://www.spongepowered.org>
+ * Copyright (c) contributors
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+package org.spongepowered.common.data.fixer.entity;
+
+import com.mojang.datafixers.DSL;
+import com.mojang.datafixers.DataFix;
+import com.mojang.datafixers.OpticFinder;
+import com.mojang.datafixers.TypeRewriteRule;
+import com.mojang.datafixers.Typed;
+import com.mojang.datafixers.schemas.Schema;
+import com.mojang.datafixers.types.Type;
+import net.minecraft.util.datafix.TypeReferences;
+import org.spongepowered.common.data.fixer.world.SpongeLevelFixer;
+import org.spongepowered.common.util.Constants;
+
+public class EntityTrackedUser extends DataFix {
+
+    public EntityTrackedUser(Schema outputSchema, boolean changesType) {
+        super(outputSchema, changesType);
+    }
+
+    @Override
+    protected TypeRewriteRule makeRule() {
+        final Type<?> entityType = this.getInputSchema().getType(TypeReferences.ENTITY);
+        final Type<?> forgeDataType = entityType.findFieldType(Constants.Forge.FORGE_DATA);
+        final Type<?> spongeDataType = forgeDataType.findFieldType(Constants.Sponge.SPONGE_DATA);
+
+        final OpticFinder<?> forgeDataFinder = DSL.fieldFinder(Constants.Forge.FORGE_DATA, forgeDataType);
+        final OpticFinder<?> spongeDataFinder = DSL.fieldFinder(Constants.Sponge.SPONGE_DATA, spongeDataType);
+
+        return TypeRewriteRule.seq(this.fixTracked(forgeDataFinder, spongeDataFinder, spongeDataType, Constants.Sponge.SPONGE_ENTITY_CREATOR),
+                                   this.fixTracked(forgeDataFinder, spongeDataFinder, spongeDataType, Constants.Sponge.SPONGE_ENTITY_NOTIFIER));
+    }
+
+    private TypeRewriteRule fixTracked(OpticFinder<?> forgeDataFinder, OpticFinder<?> spongeDataFinder, Type<?> spongeDataType, String name) {
+        final Type<?> trackedType = spongeDataType.findFieldType(name);
+        final OpticFinder<?> trackedFinder = DSL.fieldFinder(name, trackedType);
+
+        return this.fixTypeEverywhereTyped("Entity" + name + "UserFix", this.getInputSchema().getType(TypeReferences.ENTITY),
+                type -> {
+                    final Typed<?> forge = type.getTyped(forgeDataFinder);
+                    final Typed<?> sponge = forge.getTyped(spongeDataFinder);
+                    return SpongeLevelFixer.updateUUIDIn(sponge.getTyped(trackedFinder));
+                });
+    }
+
+}

src/main/java/org/spongepowered/common/data/fixer/world/SpongeLevelFixer.java

@@ -0,0 +1,74 @@
+/*
+ * This file is part of Sponge, licensed under the MIT License (MIT).
+ *
+ * Copyright (c) SpongePowered <https://www.spongepowered.org>
+ * Copyright (c) contributors
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+package org.spongepowered.common.data.fixer.world;
+
+import com.mojang.datafixers.DSL;
+import com.mojang.datafixers.DataFix;
+import com.mojang.datafixers.OpticFinder;
+import com.mojang.datafixers.TypeRewriteRule;
+import com.mojang.datafixers.Typed;
+import com.mojang.datafixers.schemas.Schema;
+import com.mojang.datafixers.types.Type;
+import com.mojang.datafixers.types.templates.List;
+import net.minecraft.util.datafix.TypeReferences;
+import org.spongepowered.common.util.Constants;
+
+public class SpongeLevelFixer extends DataFix {
+
+    public SpongeLevelFixer(Schema outputSchema, boolean changesType) {
+        super(outputSchema, changesType);
+    }
+
+    public TypeRewriteRule makeRule() {
+        final Type<?> levelType = this.getOutputSchema().getType(TypeReferences.LEVEL);
+        return TypeRewriteRule.seq(
+                this.fixTypeEverywhereTyped("FixWorldUniqueId", levelType, SpongeLevelFixer::updateUUIDIn),
+                this.fixTypeEverywhereTyped("FixPlayerIdTable", levelType, type -> this.fixPlayerIdTable(type, levelType))
+        );
+    }
+
+    private Typed<?> fixPlayerIdTable(Typed<?> typed, Type<?> levelType) {
+        Type<?> fieldType = levelType.findFieldType(Constants.Sponge.SPONGE_PLAYER_UUID_TABLE);
+        OpticFinder<List.ListType<?>> listFinder = DSL.fieldFinder(Constants.Sponge.SPONGE_PLAYER_UUID_TABLE, (List.ListType)fieldType);
+
+        Typed<List.ListType<?>> listTyped = typed.getTyped(listFinder);
+        // TODO is this correct?
+        return listTyped.updateRecursiveTyped(DSL.remainderFinder(), SpongeLevelFixer::updateUUIDIn);
+    }
+
+    public static Typed<?> updateUUIDIn(Typed<?> typed) {
+        return typed.update(DSL.remainderFinder(), data -> {
+            final long least = data.get(Constants.Legacy.Entity.UUID_LEAST_1_8).asLong(0L);
+            final long most = data.get(Constants.Legacy.Entity.UUID_MOST_1_8).asLong(0L);
+            if (least != 0 && most != 0) {
+                return data.remove(Constants.Legacy.Entity.UUID_LEAST_1_8)
+                        .remove(Constants.Legacy.Entity.UUID_MOST_1_8)
+                        .set(Constants.UUID_MOST, data.createLong(most))
+                        .set(Constants.UUID_LEAST, data.createLong(least));
+            }
+            return data;
+        });
+    }
+}