Add caching for skin part textures

src/main/java/me/braydon/mc/model/cache/CachedPlayerName.java

@@ -30,12 +30,13 @@ import org.springframework.data.redis.core.RedisHash;
 import java.util.UUID;
 
 /**
+ * A cache to easily lookup a
+ * player's UUID by their username.
+ *
  * @author Braydon
  */
-@AllArgsConstructor
-@Getter
-@EqualsAndHashCode(onlyExplicitlyIncluded = true)
-@ToString
+@AllArgsConstructor @Getter
+@EqualsAndHashCode(onlyExplicitlyIncluded = true) @ToString
 @RedisHash(value = "playerName", timeToLive = 60L * 60L) // 1 hour (in seconds)
 public final class CachedPlayerName {
     /**

src/main/java/me/braydon/mc/model/cache/CachedSkinPartTexture.java

@@ -0,0 +1,55 @@
+/*
+ * MIT License
+ *
+ * Copyright (c) 2024 Braydon (Rainnny).
+ *
+ * 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 me.braydon.mc.model.cache;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.ToString;
+import org.springframework.data.annotation.Id;
+import org.springframework.data.redis.core.RedisHash;
+
+import java.io.Serializable;
+
+/**
+ * A cache for a skin part texture.
+ *
+ * @author Braydon
+ */
+@AllArgsConstructor @Getter @ToString
+@RedisHash(value = "skinPart", timeToLive = 15L * 60L) // 15 minutes (in seconds)
+public final class CachedSkinPartTexture implements Serializable {
+    /**
+     * The id of this cache element.
+     * <p>
+     * This ID is in the given format:
+     * skinPart:<query>-<part>-<size>-<ext>
+     * </p>
+     */
+    @Id private transient final String id;
+
+    /**
+     * The cached texture;
+     */
+    private final byte[] texture;
+}

src/main/java/me/braydon/mc/repository/SkinPartTextureCacheRepository.java

@@ -0,0 +1,36 @@
+/*
+ * MIT License
+ *
+ * Copyright (c) 2024 Braydon (Rainnny).
+ *
+ * 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 me.braydon.mc.repository;
+
+import me.braydon.mc.model.Skin.Part;
+import me.braydon.mc.model.cache.CachedSkinPartTexture;
+import org.springframework.data.repository.CrudRepository;
+
+/**
+ * A cache repository for skin texture parts.
+ *
+ * @author Braydon
+ * @see Part for skin parts
+ */
+public interface SkinPartTextureCacheRepository extends CrudRepository<CachedSkinPartTexture, String> { }

src/main/java/me/braydon/mc/service/MojangService.java

@@ -41,12 +41,14 @@ import me.braydon.mc.model.*;
 import me.braydon.mc.model.cache.CachedMinecraftServer;
 import me.braydon.mc.model.cache.CachedPlayer;
 import me.braydon.mc.model.cache.CachedPlayerName;
+import me.braydon.mc.model.cache.CachedSkinPartTexture;
 import me.braydon.mc.model.server.JavaMinecraftServer;
 import me.braydon.mc.model.token.MojangProfileToken;
 import me.braydon.mc.model.token.MojangUsernameToUUIDToken;
 import me.braydon.mc.repository.MinecraftServerCacheRepository;
 import me.braydon.mc.repository.PlayerCacheRepository;
 import me.braydon.mc.repository.PlayerNameCacheRepository;
+import me.braydon.mc.repository.SkinPartTextureCacheRepository;
 import net.jodah.expiringmap.ExpirationPolicy;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.http.HttpMethod;
@@ -91,6 +93,11 @@ public final class MojangService {
      */
     @NonNull private final PlayerCacheRepository playerCache;
 
+    /**
+     * The cache repository for {@link Skin.Part}'s.
+     */
+    @NonNull private final SkinPartTextureCacheRepository skinPartTextureCache;
+
     /**
      * The cache repository for {@link MinecraftServer}'s.
      */
@@ -116,12 +123,16 @@ public final class MojangService {
 
     @Autowired
     public MojangService(@NonNull PlayerNameCacheRepository playerNameCache, @NonNull PlayerCacheRepository playerCache,
-                         @NonNull MinecraftServerCacheRepository minecraftServerCache) {
+                         @NonNull SkinPartTextureCacheRepository skinPartTextureCache, @NonNull MinecraftServerCacheRepository minecraftServerCache) {
         this.playerNameCache = playerNameCache;
         this.playerCache = playerCache;
+        this.skinPartTextureCache = skinPartTextureCache;
         this.minecraftServerCache = minecraftServerCache;
     }
 
+    @Autowired
+
+
     @PostConstruct
     public void onInitialize() {
         // Schedule a task to fetch blocked
@@ -167,6 +178,12 @@ public final class MojangService {
             size = DEFAULT_PART_TEXTURE_SIZE;
         }
         size = Math.min(size, MAX_PART_TEXTURE_SIZE); // Limit the size to 512
+        String id = "%s-%s-%s-%s".formatted(query, part.name(), size, extension); // The id of the skin part
+
+        Optional<CachedSkinPartTexture> cached = skinPartTextureCache.findById(id); // Get the cached texture
+        if (cached.isPresent()) { // Respond with the cache if present
+            return cached.get().getTexture();
+        }
 
         Skin target = null; // The target skin to get the skin part of
         try {
@@ -178,7 +195,9 @@ public final class MojangService {
         if (target == null) { // Fallback to the default skin
             target = Skin.DEFAULT_STEVE;
         }
-        return ImageUtils.getSkinPart(target, part, size);
+        byte[] texture = ImageUtils.getSkinPart(target, part, size);
+        skinPartTextureCache.save(new CachedSkinPartTexture(id, texture)); // Cache the texture
+        return texture;
     }
 
     /**
@@ -369,7 +388,7 @@ public final class MojangService {
         }
 
         // Check the cache for the server
-        Optional<CachedMinecraftServer> cached = minecraftServerCache.findById(platform.name() + "-" + lookupHostname);
+        Optional<CachedMinecraftServer> cached = minecraftServerCache.findById("%s-%s".formatted(platform.name(), lookupHostname));
         if (cached.isPresent()) { // Respond with the cache if present
             log.info("Found server in cache: {}", hostname);
             return cached.get();