content: /*
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements. See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF licenses this file to You under the Apache License, Version 2.0
   * (the "License"); you may not use this file except in compliance with
   * the License. You may obtain a copy of the License at
   *
   *    http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package org.apache.kafka.server.common;
  
  import java.util.Map;
  
  public enum GroupVersion implements FeatureVersion {
  
      // Version 0 is the original group coordinator prior to KIP-848.
      GV_0(0, MetadataVersion.MINIMUM_VERSION, Map.of()),
  
      // Version 1 enables the consumer rebalance protocol (KIP-848).
      GV_1(1, MetadataVersion.IBP_4_0_IV0, Map.of());
  
      public static final String FEATURE_NAME = "group.version";
  
      public static final GroupVersion LATEST_PRODUCTION = GV_1;
  
      private final short featureLevel;
      private final MetadataVersion bootstrapMetadataVersion;
      private final Map<String, Short> dependencies;
  
      GroupVersion(
          int featureLevel,
          MetadataVersion bootstrapMetadataVersion,
          Map<String, Short> dependencies
      ) {
          this.featureLevel = (short) featureLevel;
          this.bootstrapMetadataVersion = bootstrapMetadataVersion;
          this.dependencies = dependencies;
      }
  
      @Override
      public short featureLevel() {
          return featureLevel;
      }
  
      @Override
      public String featureName() {
          return FEATURE_NAME;
      }
  
      @Override
      public MetadataVersion bootstrapMetadataVersion() {
          return bootstrapMetadataVersion;
      }
  
      @Override
      public Map<String, Short> dependencies() {
          return dependencies;
      }
  
      public boolean isConsumerRebalanceProtocolSupported() {
          return featureLevel >= GV_1.featureLevel;
      }
  
      public static GroupVersion fromFeatureLevel(short version) {
          switch (version) {
              case 0:
                  return GV_0;
              case 1:
                  return GV_1;
              default:
                  throw new RuntimeException("Unknown group feature level: " + (int) version);
          }
      }
  }
  