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.clients.producer.ProducerRecord;
  import org.apache.kafka.common.TopicPartition;
  
  import java.util.List;
  import java.util.Objects;
  
  public final class OffloadedSegmentSpec {
  
      private final int sourceBrokerId;
      private final TopicPartition topicPartition;
      private final int baseOffset;
      private final List<ProducerRecord<String, String>> records;
  
      /**
       * Specifies a remote log segment expected to be found in a second-tier storage.
       *
       * @param sourceBrokerId The broker which offloaded (uploaded) the segment to the second-tier storage.
       * @param topicPartition The topic-partition which the remote log segment belongs to.
       * @param baseOffset The base offset of the remote log segment.
       * @param records The records *expected* in the remote log segment.
       */
      public OffloadedSegmentSpec(int sourceBrokerId,
                                  TopicPartition topicPartition,
                                  int baseOffset,
                                  List<ProducerRecord<String, String>> records) {
          this.sourceBrokerId = sourceBrokerId;
          this.topicPartition = topicPartition;
          this.baseOffset = baseOffset;
          this.records = records;
      }
  
      public int getSourceBrokerId() {
          return sourceBrokerId;
      }
  
      public TopicPartition getTopicPartition() {
          return topicPartition;
      }
  
      public int getBaseOffset() {
          return baseOffset;
      }
  
      public List<ProducerRecord<String, String>> getRecords() {
          return records;
      }
  
      @Override
      public String toString() {
          return String.format("Segment[partition=%s offloaded-by-broker-id=%d base-offset=%d record-count=%d]",
                  topicPartition, sourceBrokerId, baseOffset, records.size());
      }
  
      @Override
      public boolean equals(Object o) {
          if (this == o) return true;
          if (o == null || getClass() != o.getClass()) return false;
          OffloadedSegmentSpec that = (OffloadedSegmentSpec) o;
          return sourceBrokerId == that.sourceBrokerId
                  && baseOffset == that.baseOffset
                  && Objects.equals(topicPartition, that.topicPartition)
                  && Objects.equals(records, that.records);
      }
  
      @Override
      public int hashCode() {
          return Objects.hash(sourceBrokerId, topicPartition, baseOffset, records);
      }
  }
  