[ISSUE #9741] Optimize authentication whitelist lookup efficiency (#9742)

Author: yx9o

auth/src/main/java/org/apache/rocketmq/auth/authentication/strategy/AbstractAuthenticationStrategy.java

@@ -16,8 +16,8 @@
  */
 package org.apache.rocketmq.auth.authentication.strategy;
 
-import java.util.ArrayList;
-import java.util.List;
+import java.util.HashSet;
+import java.util.Set;
 import java.util.function.Supplier;
 import org.apache.commons.lang3.StringUtils;
 import org.apache.rocketmq.auth.authentication.context.AuthenticationContext;
@@ -30,7 +30,7 @@
 public abstract class AbstractAuthenticationStrategy implements AuthenticationStrategy {
 
     protected final AuthConfig authConfig;
-    protected final List<String> authenticationWhitelist = new ArrayList<>();
+    protected final Set<String> authenticationWhiteSet = new HashSet<>();
     protected final AuthenticationProvider<AuthenticationContext> authenticationProvider;
 
     public AbstractAuthenticationStrategy(AuthConfig authConfig, Supplier<?> metadataService) {
@@ -42,7 +42,7 @@ public AbstractAuthenticationStrategy(AuthConfig authConfig, Supplier<?> metadat
         if (StringUtils.isNotBlank(authConfig.getAuthenticationWhitelist())) {
             String[] whitelist = StringUtils.split(authConfig.getAuthenticationWhitelist(), ",");
             for (String rpcCode : whitelist) {
-                this.authenticationWhitelist.add(StringUtils.trim(rpcCode));
+                this.authenticationWhiteSet.add(StringUtils.trim(rpcCode));
             }
         }
     }
@@ -57,7 +57,7 @@ protected void doEvaluate(AuthenticationContext context) {
         if (this.authenticationProvider == null) {
             return;
         }
-        if (this.authenticationWhitelist.contains(context.getRpcCode())) {
+        if (this.authenticationWhiteSet.contains(context.getRpcCode())) {
             return;
         }
         try {