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.metadata.properties;
  
  /**
   * The version of a meta.properties file.
   */
  public enum MetaPropertiesVersion {
      /**
       * The original version of meta.properties. This is the version that gets used if there is no
       * version field. No fields are guaranteed in v0.
       */
      V0(0),
  
      /**
       * The KRaft version of meta.properties. Not all KRaft clusters have this version; some which
       * were migrated from ZK may have v0.
       */
      V1(1);
  
      private final int number;
  
      public static MetaPropertiesVersion fromNumberString(String numberString) {
          int number;
          try {
              number = Integer.parseInt(numberString.trim());
          } catch (NumberFormatException  e) {
              throw new RuntimeException("Invalid meta.properties version string '" +
                      numberString + "'");
          }
          return fromNumber(number);
      }
  
      public static MetaPropertiesVersion fromNumber(int number) {
          switch (number) {
              case 0: return V0;
              case 1: return V1;
              default: throw new RuntimeException("Unknown meta.properties version number " + number);
          }
      }
  
      MetaPropertiesVersion(int number) {
          this.number = number;
      }
  
      public int number() {
          return number;
      }
  
      public String numberString() {
          return Integer.toString(number);
      }
  
      public boolean hasBrokerId() {
          return this == V0;
      }
  
      public boolean alwaysHasNodeId() {
          return this != V0;
      }
  
      public boolean alwaysHasClusterId() {
          return this != V0;
      }
  }
  