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.common.record;
  
  /**
   * Defines the record format versions supported by Kafka.
   *
   * For historical reasons, the record format version is also known as `magic` and `message format version`. Note that
   * the version actually applies to the {@link RecordBatch} (instead of the {@link Record}). 
   */
  public enum RecordVersion {
      V0(0), V1(1), V2(2);
  
      private static final RecordVersion[] VALUES = values();
  
      public final byte value;
  
      RecordVersion(int value) {
          this.value = (byte) value;
      }
  
      public static RecordVersion lookup(byte value) {
          if (value < 0 || value >= VALUES.length)
              throw new IllegalArgumentException("Unknown record version: " + value);
          return VALUES[value];
      }
  
      public static RecordVersion current() {
          return V2;
      }
  
  }
  