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Merge pull request #2614 from BentoBoxWorld/tag_serialization
Added GSON serialization for Tags
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63 changes: 63 additions & 0 deletions
63
src/main/java/world/bentobox/bentobox/database/json/adapters/TagTypeAdapter.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,63 @@ | ||
| package world.bentobox.bentobox.database.json.adapters; | ||
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| import java.io.IOException; | ||
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| import org.bukkit.Bukkit; | ||
| import org.bukkit.Keyed; | ||
| import org.bukkit.NamespacedKey; | ||
| import org.bukkit.Tag; | ||
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| import com.google.gson.Gson; | ||
| import com.google.gson.JsonParseException; | ||
| import com.google.gson.TypeAdapter; | ||
| import com.google.gson.stream.JsonReader; | ||
| import com.google.gson.stream.JsonToken; | ||
| import com.google.gson.stream.JsonWriter; | ||
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| /** | ||
| * @author tastybento | ||
| * | ||
| * @param <T> Tag class to be serialized | ||
| */ | ||
| public final class TagTypeAdapter<E extends Keyed> extends TypeAdapter<Tag<E>> { | ||
| private final TypeAdapter<String> stringAdapter; | ||
| private final String registry; | ||
| private final Class<E> elementType; | ||
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| public TagTypeAdapter(Gson gson, String registry, Class<E> elementType) { | ||
| this.stringAdapter = gson.getAdapter(String.class); | ||
| this.registry = registry; | ||
| this.elementType = elementType; | ||
| } | ||
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| @Override | ||
| public void write(JsonWriter out, Tag<E> value) throws IOException { | ||
| if (value == null) { | ||
| out.nullValue(); | ||
| return; | ||
| } | ||
| stringAdapter.write(out, value.getKey().toString()); | ||
| } | ||
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| @Override | ||
| public Tag<E> read(JsonReader in) throws IOException { | ||
| if (in.peek() == JsonToken.NULL) { | ||
| in.nextNull(); | ||
| return null; | ||
| } | ||
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| String key = stringAdapter.read(in); | ||
| NamespacedKey namespacedKey = NamespacedKey.fromString(key); | ||
| if (namespacedKey == null) { | ||
| throw new JsonParseException("Invalid tag key format: " + key); | ||
| } | ||
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| Tag<E> tag = Bukkit.getTag(registry, namespacedKey, elementType); | ||
| if (tag == null) { | ||
| throw new JsonParseException("Unknown tag: " + key); | ||
| } | ||
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| return tag; | ||
| } | ||
| } |
45 changes: 45 additions & 0 deletions
45
src/main/java/world/bentobox/bentobox/database/json/adapters/TagTypeAdapterFactory.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,45 @@ | ||
| package world.bentobox.bentobox.database.json.adapters; | ||
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| import java.lang.reflect.ParameterizedType; | ||
| import java.lang.reflect.Type; | ||
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| import org.bukkit.Fluid; | ||
| import org.bukkit.Keyed; | ||
| import org.bukkit.Material; | ||
| import org.bukkit.Tag; | ||
| import org.bukkit.entity.EntityType; | ||
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| import com.google.gson.Gson; | ||
| import com.google.gson.TypeAdapter; | ||
| import com.google.gson.TypeAdapterFactory; | ||
| import com.google.gson.reflect.TypeToken; | ||
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| public class TagTypeAdapterFactory implements TypeAdapterFactory { | ||
| @SuppressWarnings({ "unchecked", "rawtypes" }) | ||
| @Override | ||
| public <T> TypeAdapter<T> create(Gson gson, TypeToken<T> type) { | ||
| Class<?> rawType = type.getRawType(); | ||
| if (Tag.class.isAssignableFrom(rawType)) { | ||
| // Get the generic type parameter of Tag<T> | ||
| Type[] typeArguments = ((ParameterizedType) type.getType()).getActualTypeArguments(); | ||
| if (typeArguments.length > 0) { | ||
| Class<? extends Keyed> tagType = (Class<? extends Keyed>) typeArguments[0]; | ||
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| // Determine the correct registry based on the tag type | ||
| String registry; | ||
| if (Material.class.equals(tagType)) { | ||
| registry = Tag.REGISTRY_BLOCKS; | ||
| } else if (EntityType.class.equals(tagType)) { | ||
| registry = Tag.REGISTRY_ENTITY_TYPES; | ||
| } else if (Fluid.class.equals(tagType)) { | ||
| registry = Tag.REGISTRY_FLUIDS; | ||
| } else { | ||
| throw new IllegalArgumentException("Unsupported Tag type: " + tagType); | ||
| } | ||
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| return (TypeAdapter<T>) new TagTypeAdapter(gson, registry, tagType); | ||
| } | ||
| } | ||
| return null; | ||
| } | ||
| } |