Add data component support for 1.21.4

Author: virustotalop

bukkit/src/main/java/com/clubobsidian/dynamicgui/bukkit/registry/npc/CitizensRegistry.java

@@ -41,7 +41,8 @@ public CitizensRegistry() {
         this.getIdMethod = ReflectionUtil.getMethod(this.npcClass, "getId");
         this.getNPCMethod = ReflectionUtil.getMethodByParams(
                 this.npcRegistry.getClass(),
-                "getNPC", Entity.class
+                new String[]{"getNPC"},
+                Entity.class
         );
     }
 

bukkit/src/main/java/com/clubobsidian/dynamicgui/bukkit/registry/replacer/PlaceholderApiReplacerRegistry.java

@@ -44,6 +44,11 @@ public String replace(PlayerWrapper<?> playerWrapper, String text) {
 
     private Method getPlaceholdersMethod() {
         Class<?> clazz = ReflectionUtil.classForName("me.clip.placeholderapi.PlaceholderAPI");
-        return ReflectionUtil.getMethodByParams(clazz, "setPlaceholders", OfflinePlayer.class, String.class);
+        return ReflectionUtil.getMethodByParams(
+                clazz,
+                new String[]{"setPlaceholders"},
+                OfflinePlayer.class,
+                String.class
+        );
     }
 }

bukkit/src/main/java/com/clubobsidian/dynamicgui/bukkit/util/BukkitDataComponentUtil.java

@@ -23,10 +23,7 @@
 import java.lang.reflect.Field;
 import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
-import java.util.LinkedHashMap;
-import java.util.Locale;
-import java.util.Map;
-import java.util.Objects;
+import java.util.*;
 
 public final class BukkitDataComponentUtil {
 
@@ -72,6 +69,8 @@ public final class BukkitDataComponentUtil {
             .getClassIfExists("net.minecraft.network.chat.Component");
     private static final Class<?> TAG = ReflectionUtil
             .getClassIfExists("net.minecraft.nbt.Tag");
+    private static final Class<?> REFERENCE = ReflectionUtil
+            .getClassIfExists("net.minecraft.core.Holder$Reference");
 
     private static final Field NBT_OPS_INSTANCE =
             ReflectionUtil.getDeclaredField(NBT_OPS, "INSTANCE");
@@ -89,7 +88,7 @@ public final class BukkitDataComponentUtil {
     private static final Method RESOURCE_LOCATION_READ = ReflectionUtil
             .getStaticMethod(RESOURCE_LOCATION, RESOURCE_LOCATION, STRING_READER);
     private static final Method MAPPED_REGISTRY_GET = ReflectionUtil
-            .getMethodByParams(MAPPED_REGISTRY, "get", RESOURCE_LOCATION);
+            .getMethodByParams(MAPPED_REGISTRY, new String[]{"getValue", "get"}, RESOURCE_LOCATION);
     private static final Method CODEC_OR_THROW = ReflectionUtil
             .getMethod(DATA_COMPONENT_TYPE, "codecOrThrow");
     private static final Method PARSE = ReflectionUtil
@@ -116,6 +115,8 @@ public final class BukkitDataComponentUtil {
             .getMethod(COMPONENT, 0, "getString");
     private static final Method TAG_PARSER_READ_VALUE = ReflectionUtil
             .getMethod(TAG_PARSER, "readValue");
+    private static final Method HOLDER_VALUE = ReflectionUtil
+            .getMethod(REFERENCE, "value");
 
     private static final Constructor<?> STRING_READER_CON =
             ReflectionUtil.getConstructor(STRING_READER, String.class);

core/src/main/java/com/clubobsidian/dynamicgui/core/util/ReflectionUtil.java

@@ -100,16 +100,17 @@ public static Method getMethod(@Nullable Class<?> cl, int paramCount, String...
         return null;
     }
 
-    public static Method getMethodByParams(Class<?> cl, String methodName, Class<?>... params) {
+    public static Method getMethodByParams(Class<?> cl, String[] methodNames, Class<?>... params) {
         if (cl == null) {
             return null;
         }
-        try {
-            Method method = cl.getDeclaredMethod(methodName, params);
-            method.setAccessible(true);
-            return method;
-        } catch (NoSuchMethodException | SecurityException e) {
-            e.printStackTrace();
+        for (String methodName : methodNames) {
+            try {
+                Method method = cl.getDeclaredMethod(methodName, params);
+                method.setAccessible(true);
+                return method;
+            } catch (NoSuchMethodException | SecurityException e) {
+            }
         }
         return null;
     }