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.snapshot;
  
  import org.apache.kafka.common.record.Records;
  import org.apache.kafka.common.record.UnalignedRecords;
  import org.apache.kafka.server.common.OffsetAndEpoch;
  
  /**
   * Interface for reading snapshots as a sequence of records.
   */
  public interface RawSnapshotReader {
      /**
       * Returns the end offset and epoch for the snapshot.
       */
      OffsetAndEpoch snapshotId();
  
      /**
       * Returns the number of bytes for the snapshot.
       */
      long sizeInBytes();
  
      /**
       * Creates a slice of unaligned records from the position up to a size.
       *
       * @param position the starting position of the slice in the snapshot
       * @param size the maximum size of the slice
       * @return an unaligned slice of records in the snapshot
       */
      UnalignedRecords slice(long position, int size);
  
      /**
       * Returns all the records backing this snapshot reader.
       *
       * @return all the records for this snapshot
       */
      Records records();
  }
  