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 org.apache.kafka.server.log.remote.storage.LocalTieredStorageEvent;
  
  import java.util.Objects;
  
  public final class RemoteDeleteSegmentSpec {
  
      private final int sourceBrokerId;
      private final TopicPartition topicPartition;
      private final LocalTieredStorageEvent.EventType eventType;
      private final int eventCount;
  
      /**
       * Specifies a delete segment/partition 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 deletes (a) remote log segments(s) (or) deletes the entire partition from
       *                       the second-tier storage.
       * @param topicPartition The topic-partition in which the deletion should happen.
       * @param eventType      Allowed event types are {@link LocalTieredStorageEvent.EventType#DELETE_PARTITION} and
       *                       {@link LocalTieredStorageEvent.EventType#DELETE_SEGMENT}
       * @param eventCount     How many events are expected to interact with the second-tier storage.
       */
      public RemoteDeleteSegmentSpec(int sourceBrokerId,
                                     TopicPartition topicPartition,
                                     LocalTieredStorageEvent.EventType eventType,
                                     int eventCount) {
          this.sourceBrokerId = sourceBrokerId;
          this.topicPartition = topicPartition;
          this.eventType = eventType;
          this.eventCount = eventCount;
      }
  
      public int getSourceBrokerId() {
          return sourceBrokerId;
      }
  
      public TopicPartition getTopicPartition() {
          return topicPartition;
      }
  
      public LocalTieredStorageEvent.EventType getEventType() {
          return eventType;
      }
  
      public int getEventCount() {
          return eventCount;
      }
  
      @Override
      public String toString() {
          return String.format("RemoteDeleteSegment[source-broker-id=%d topic-partition=%s event-type=%s event-count=%d]",
                  sourceBrokerId, topicPartition, eventType, eventCount);
      }
  
      @Override
      public boolean equals(Object o) {
          if (this == o) return true;
          if (o == null || getClass() != o.getClass()) return false;
          RemoteDeleteSegmentSpec that = (RemoteDeleteSegmentSpec) o;
          return sourceBrokerId == that.sourceBrokerId
                  && eventCount == that.eventCount
                  && Objects.equals(topicPartition, that.topicPartition)
                  && eventType == that.eventType;
      }
  
      @Override
      public int hashCode() {
          return Objects.hash(sourceBrokerId, topicPartition, eventType, eventCount);
      }
  }
  