Trimmed down the copy-pasted code in the PubSubSecurityProtocol.

clients/da-vinci-client/src/main/java/com/linkedin/davinci/kafka/consumer/KafkaStoreIngestionService.java

@@ -1114,7 +1114,7 @@ private VeniceProperties getPubSubSSLPropertiesFromServerConfig(String kafkaBoot
       }
       properties.putAll(sslConfig.get().getKafkaSSLConfig());
     }
-    properties.setProperty(CommonClientConfigs.SECURITY_PROTOCOL_CONFIG, securityProtocol.name);
+    properties.setProperty(CommonClientConfigs.SECURITY_PROTOCOL_CONFIG, securityProtocol.name());
     return new VeniceProperties(properties);
   }
 

internal/venice-common/src/main/java/com/linkedin/venice/pubsub/api/PubSubSecurityProtocol.java

@@ -11,24 +11,13 @@
  */
 public enum PubSubSecurityProtocol {
   /** Un-authenticated, non-encrypted channel */
-  PLAINTEXT(0, "PLAINTEXT"),
+  PLAINTEXT,
   /** SSL channel */
-  SSL(1, "SSL"),
+  SSL,
   /** SASL authenticated, non-encrypted channel */
-  SASL_PLAINTEXT(2, "SASL_PLAINTEXT"),
+  SASL_PLAINTEXT,
   /** SASL authenticated, SSL channel */
-  SASL_SSL(3, "SASL_SSL");
-
-  /** The permanent and immutable id of a security protocol -- this can't change, and must match kafka.cluster.SecurityProtocol  */
-  public final short id;
-
-  /** Name of the security protocol. This may be used by client configuration. */
-  public final String name;
-
-  PubSubSecurityProtocol(int id, String name) {
-    this.id = (short) id;
-    this.name = name;
-  }
+  SASL_SSL;
 
   public static PubSubSecurityProtocol forName(String name) {
     return PubSubSecurityProtocol.valueOf(name.toUpperCase(Locale.ROOT));

internal/venice-common/src/test/java/com/linkedin/venice/pubsub/adapter/kafka/admin/ApacheKafkaAdminConfigTest.java

@@ -35,8 +35,8 @@ private void testSetupSaslInKafkaAdmin(PubSubSecurityProtocol securityProtocol)
     properties.put("kafka.bootstrap.servers", "localhost:9092");
     properties.put("kafka.sasl.jaas.config", SASL_JAAS_CONFIG);
     properties.put("kafka.sasl.mechanism", SASL_MECHANISM);
-    properties.put("kafka.security.protocol", securityProtocol.name);
-    if (securityProtocol.name.contains("SSL")) {
+    properties.put("kafka.security.protocol", securityProtocol.name());
+    if (securityProtocol.name().contains("SSL")) {
       properties.put("ssl.truststore.location", "-");
       properties.put("ssl.truststore.password", "");
       properties.put("ssl.truststore.type", "JKS");
@@ -49,7 +49,7 @@ private void testSetupSaslInKafkaAdmin(PubSubSecurityProtocol securityProtocol)
     Properties adminProperties = serverConfig.getAdminProperties();
     assertEquals(SASL_JAAS_CONFIG, adminProperties.get("sasl.jaas.config"));
     assertEquals(SASL_MECHANISM, adminProperties.get("sasl.mechanism"));
-    assertEquals(securityProtocol.name, adminProperties.get("security.protocol"));
+    assertEquals(securityProtocol.name(), adminProperties.get("security.protocol"));
   }
 
   @Test

internal/venice-common/src/test/java/com/linkedin/venice/pubsub/api/PubSubSecurityProtocolTest.java

@@ -64,4 +64,23 @@ public void testInstantiation() {
       assertEquals(specificEnum.name(), value.name());
     }
   }
+
+  @Test
+  public void testForName() {
+    assertEquals(PubSubSecurityProtocol.forName("plaintext"), PubSubSecurityProtocol.PLAINTEXT);
+    assertEquals(PubSubSecurityProtocol.forName("PLAINTEXT"), PubSubSecurityProtocol.PLAINTEXT);
+    assertEquals(PubSubSecurityProtocol.forName("Plaintext"), PubSubSecurityProtocol.PLAINTEXT);
+
+    assertEquals(PubSubSecurityProtocol.forName("ssl"), PubSubSecurityProtocol.SSL);
+    assertEquals(PubSubSecurityProtocol.forName("SSL"), PubSubSecurityProtocol.SSL);
+    assertEquals(PubSubSecurityProtocol.forName("Ssl"), PubSubSecurityProtocol.SSL);
+
+    assertEquals(PubSubSecurityProtocol.forName("sasl_plaintext"), PubSubSecurityProtocol.SASL_PLAINTEXT);
+    assertEquals(PubSubSecurityProtocol.forName("SASL_PLAINTEXT"), PubSubSecurityProtocol.SASL_PLAINTEXT);
+    assertEquals(PubSubSecurityProtocol.forName("Sasl_Plaintext"), PubSubSecurityProtocol.SASL_PLAINTEXT);
+
+    assertEquals(PubSubSecurityProtocol.forName("sasl_ssl"), PubSubSecurityProtocol.SASL_SSL);
+    assertEquals(PubSubSecurityProtocol.forName("SASL_SSL"), PubSubSecurityProtocol.SASL_SSL);
+    assertEquals(PubSubSecurityProtocol.forName("Sasl_Ssl"), PubSubSecurityProtocol.SASL_SSL);
+  }
 }

internal/venice-test-common/src/integrationTest/java/com/linkedin/venice/integration/utils/VeniceControllerWrapper.java

@@ -228,7 +228,7 @@ static StatefulServiceProvider<VeniceControllerWrapper> generateService(VeniceCo
         }
 
         if (options.isSslToKafka()) {
-          builder.put(KAFKA_SECURITY_PROTOCOL, PubSubSecurityProtocol.SSL.name);
+          builder.put(KAFKA_SECURITY_PROTOCOL, PubSubSecurityProtocol.SSL.name());
           builder.put(KafkaTestUtils.getLocalCommonKafkaSSLConfig(SslUtils.getTlsConfiguration()));
         }
 

internal/venice-test-common/src/integrationTest/java/com/linkedin/venice/integration/utils/VeniceServerWrapper.java

@@ -256,7 +256,7 @@ static StatefulServiceProvider<VeniceServerWrapper> generateService(
           .put(SERVER_LEADER_COMPLETE_STATE_CHECK_IN_FOLLOWER_VALID_INTERVAL_MS, 5000)
           .put(SERVER_RESUBSCRIPTION_TRIGGERED_BY_VERSION_INGESTION_CONTEXT_CHANGE_ENABLED, true);
       if (sslToKafka) {
-        serverPropsBuilder.put(KAFKA_SECURITY_PROTOCOL, PubSubSecurityProtocol.SSL.name);
+        serverPropsBuilder.put(KAFKA_SECURITY_PROTOCOL, PubSubSecurityProtocol.SSL.name());
         serverPropsBuilder.put(KafkaTestUtils.getLocalCommonKafkaSSLConfig(SslUtils.getTlsConfiguration()));
       }
 

internal/venice-test-common/src/integrationTest/java/com/linkedin/venice/integration/utils/VeniceTwoLayerMultiRegionMultiClusterWrapper.java

@@ -257,8 +257,8 @@ private static Map<String, Map<String, String>> addKafkaClusterIDMappingToServer
       List<String> regionNames,
       List<PubSubBrokerWrapper> kafkaBrokers) {
     if (serverProperties.isPresent()) {
-      PubSubSecurityProtocol baseSecurityProtocol = PubSubSecurityProtocol
-          .valueOf(serverProperties.get().getProperty(KAFKA_SECURITY_PROTOCOL, PubSubSecurityProtocol.PLAINTEXT.name));
+      PubSubSecurityProtocol baseSecurityProtocol = PubSubSecurityProtocol.valueOf(
+          serverProperties.get().getProperty(KAFKA_SECURITY_PROTOCOL, PubSubSecurityProtocol.PLAINTEXT.name()));
       Map<String, Map<String, String>> kafkaClusterMap = new HashMap<>();
 
       Map<String, String> mapping;
@@ -271,7 +271,7 @@ private static Map<String, Map<String, String>> addKafkaClusterIDMappingToServer
           // Testing mixed security on any 2-layer setup with 2 or more DCs.
           securityProtocol = PubSubSecurityProtocol.SSL;
         }
-        mapping.put(KAFKA_CLUSTER_MAP_SECURITY_PROTOCOL, securityProtocol.name);
+        mapping.put(KAFKA_CLUSTER_MAP_SECURITY_PROTOCOL, securityProtocol.name());
 
         // N.B. the first Kafka broker in the list is the parent, which we're excluding from the mapping, so this
         // is why the index here is offset by 1 compared to the cluster ID.