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.tiered.storage.specs;
  
  import org.apache.kafka.common.TopicPartition;
  
  import java.util.Objects;
  
  public final class RemoteFetchSpec {
  
      private final int sourceBrokerId;
      private final TopicPartition topicPartition;
      private final RemoteFetchCount remoteFetchCount;
  
      /**
       * Specifies a fetch (download) event from a second-tier storage. This is used to ensure the
       * interactions between Kafka and the second-tier storage match expectations.
       *
       * @param sourceBrokerId The broker which fetched (a) remote log segment(s) from the second-tier storage.
       * @param topicPartition The topic-partition which segment(s) were fetched.
       * @param remoteFetchCount The number of remote log segment(s) and indexes fetched.
       */
      public RemoteFetchSpec(int sourceBrokerId,
                             TopicPartition topicPartition,
                             RemoteFetchCount remoteFetchCount) {
          this.sourceBrokerId = sourceBrokerId;
          this.topicPartition = topicPartition;
          this.remoteFetchCount = remoteFetchCount;
      }
  
      public int getSourceBrokerId() {
          return sourceBrokerId;
      }
  
      public TopicPartition getTopicPartition() {
          return topicPartition;
      }
  
      public RemoteFetchCount getRemoteFetchCount() {
          return remoteFetchCount;
      }
  
      @Override
      public String toString() {
          return String.format("RemoteFetch[source-broker-id=%d topic-partition=%s remote-fetch-count=%s]",
                  sourceBrokerId, topicPartition, remoteFetchCount);
      }
  
      @Override
      public boolean equals(Object o) {
          if (this == o) return true;
          if (o == null || getClass() != o.getClass()) return false;
          RemoteFetchSpec that = (RemoteFetchSpec) o;
          return sourceBrokerId == that.sourceBrokerId
                  && Objects.equals(remoteFetchCount, that.remoteFetchCount)
                  && Objects.equals(topicPartition, that.topicPartition);
      }
  
      @Override
      public int hashCode() {
          return Objects.hash(sourceBrokerId, topicPartition, remoteFetchCount);
      }
  }
  