Use nbt string for faster cache system

Author: Rothes

bukkit/src/main/java/io/github/rothes/protocolstringreplacer/replacer/ReplacerManager.java

@@ -13,7 +13,6 @@
 import io.github.rothes.protocolstringreplacer.replacer.containers.Container;
 import io.github.rothes.protocolstringreplacer.replacer.containers.Replaceable;
 import org.apache.commons.lang.Validate;
-import org.bukkit.inventory.ItemStack;
 import org.jetbrains.annotations.NotNull;
 import org.neosearch.stringsearcher.Emit;
 
@@ -38,7 +37,7 @@ public class ReplacerManager {
     private char papiHead;
     private char papiTail;
     private final List<ReplacerConfig> replacerConfigList = new ArrayList<>();
-    private final ConcurrentHashMap<ItemStack, HandledItemCache> cacheTable = new ConcurrentHashMap<>();
+    private final ConcurrentHashMap<String, HandledItemCache> cacheTable = new ConcurrentHashMap<>();
     private PsrTask cleanTask;
 
     public static class HandledItemCache {
@@ -121,15 +120,15 @@ public void registerTask() {
             long currentTime = System.currentTimeMillis();
             int purged = 0;
 
-            List<ItemStack> needToRemove = new ArrayList<>();
-            for (Map.Entry<ItemStack, HandledItemCache> entry : cacheTable.entrySet()) {
+            List<String> needToRemove = new ArrayList<>();
+            for (Map.Entry<String, HandledItemCache> entry : cacheTable.entrySet()) {
                 needToRemove.clear();
                 if ((currentTime - entry.getValue().lastAccessTime) > cleanAccessInterval) {
                     needToRemove.add(entry.getKey());
                 }
                 if (!needToRemove.isEmpty()) {
-                    for (ItemStack itemStack : needToRemove) {
-                        cacheTable.remove(itemStack);
+                    for (String cacheKey : needToRemove) {
+                        cacheTable.remove(cacheKey);
                         purged++;
                     }
                 }
@@ -201,11 +200,11 @@ public void saveReplacerConfigs() {
     }
 
     @Nullable
-    public HandledItemCache getReplacedItemCache(ItemStack original) {
+    public HandledItemCache getReplacedItemCache(String original) {
         return cacheTable.get(original);
     }
 
-    public HandledItemCache addReplacedItemCache(ItemStack original, @NotNull ReadWriteNBT nbtItem, boolean blocked, int[] papiIndexes) {
+    public HandledItemCache addReplacedItemCache(String original, @NotNull ReadWriteNBT nbtItem, boolean blocked, int[] papiIndexes) {
         Validate.notNull(nbtItem, "Replaced NBTItem cannot be null");
 
         HandledItemCache handledItemCache = new HandledItemCache(nbtItem, System.currentTimeMillis(), blocked, papiIndexes);

bukkit/src/main/kotlin/io/github/rothes/protocolstringreplacer/replacer/containers/ItemStackContainer.kt

@@ -23,22 +23,23 @@ class ItemStackContainer @JvmOverloads constructor(itemStack: ItemStack, useCach
     private val original: ItemMeta = content.itemMeta
 
     init {
+        nbt = NBT.itemStackToNBT(content)
         if (useCache) {
             val replacerManager = ProtocolStringReplacer.getInstance().replacerManager
 
-            val getCache = replacerManager.getReplacedItemCache(content)
+            val nbtString = nbt.toString()
+            val getCache = replacerManager.getReplacedItemCache(nbtString)
             if (getCache != null) {
-                metaCache = getCache
                 isFromCache = true
+                metaCache = getCache
                 nbt = metaCache.nbt
             } else {
                 isFromCache = false
                 nbt = NBT.itemStackToNBT(content)
-                metaCache = replacerManager.addReplacedItemCache(content, nbt, false, IntArray(0))
+                metaCache = replacerManager.addReplacedItemCache(nbtString, nbt, false, IntArray(0))
             }
         } else {
             isFromCache = false
-            nbt = NBT.itemStackToNBT(content)
         }
     }