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.utils;
  
  import org.apache.kafka.common.record.RecordBatch;
  
  public class ProducerIdAndEpoch {
      public static final ProducerIdAndEpoch NONE = new ProducerIdAndEpoch(RecordBatch.NO_PRODUCER_ID, RecordBatch.NO_PRODUCER_EPOCH);
  
      public final long producerId;
      public final short epoch;
  
      public ProducerIdAndEpoch(long producerId, short epoch) {
          this.producerId = producerId;
          this.epoch = epoch;
      }
  
      public boolean isValid() {
          return RecordBatch.NO_PRODUCER_ID < producerId;
      }
  
      @Override
      public String toString() {
          return "(producerId=" + producerId + ", epoch=" + epoch + ")";
      }
  
      @Override
      public boolean equals(Object o) {
          if (this == o) return true;
          if (o == null || getClass() != o.getClass()) return false;
  
          ProducerIdAndEpoch that = (ProducerIdAndEpoch) o;
  
          if (producerId != that.producerId) return false;
          return epoch == that.epoch;
      }
  
      @Override
      public int hashCode() {
          int result = (int) (producerId ^ (producerId >>> 32));
          result = 31 * result + (int) epoch;
          return result;
      }
  
  }
  