content: /*
   * Copyright 2023 Aiven Oy
   *
   * Licensed 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 io.aiven.kafka.tieredstorage.manifest.index;
  
  public class FixedSizeChunkIndexBuilder extends AbstractChunkIndexBuilder {
      private final int transformedChunkSize;
  
      public FixedSizeChunkIndexBuilder(final int originalChunkSize,
                                        final int originalFileSize,
                                        final int transformedChunkSize) {
          super(originalChunkSize, originalFileSize);
  
          checkSize(transformedChunkSize, "Transformed chunk size");
          this.transformedChunkSize = transformedChunkSize;
      }
  
      @Override
      protected void addChunk0(final int transformedChunkSize) {
          // Sanity check.
          if (transformedChunkSize != this.transformedChunkSize) {
              throw new IllegalArgumentException("Non-final chunk must be of size " + this.transformedChunkSize
                  + ", but " + transformedChunkSize + " given");
          }
      }
  
      @Override
      protected ChunkIndex finish0(final int finalTransformedChunkSize) {
          return new FixedSizeChunkIndex(
              originalChunkSize, originalFileSize, transformedChunkSize, finalTransformedChunkSize);
      }
  }
  