content: /*
   * Copyright 2002-2019 Drew Noakes and contributors
   *
   *    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
   *
   *        https://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.
   *
   * More information about this project is available at:
   *
   *    https://drewnoakes.com/code/exif/
   *    https://github.com/drewnoakes/metadata-extractor
   */
  
  package com.drew.metadata.exif;
  
  import com.drew.lang.annotations.NotNull;
  import com.drew.lang.annotations.Nullable;
  
  import static com.drew.metadata.exif.ExifThumbnailDirectory.*;
  
  /**
   * Provides human-readable string representations of tag values stored in a {@link ExifThumbnailDirectory}.
   *
   * @author Drew Noakes https://drewnoakes.com
   */
  @SuppressWarnings("WeakerAccess")
  public class ExifThumbnailDescriptor extends ExifDescriptorBase<ExifThumbnailDirectory>
  {
      public ExifThumbnailDescriptor(@NotNull ExifThumbnailDirectory directory)
      {
          super(directory);
      }
  
      @Override
      @Nullable
      public String getDescription(int tagType)
      {
          switch (tagType) {
              case TAG_THUMBNAIL_OFFSET:
                  return getThumbnailOffsetDescription();
              case TAG_THUMBNAIL_LENGTH:
                  return getThumbnailLengthDescription();
              default:
                  return super.getDescription(tagType);
          }
      }
  
      @Nullable
      public String getThumbnailLengthDescription()
      {
          String value = _directory.getString(TAG_THUMBNAIL_LENGTH);
          return value == null ? null : value + " bytes";
      }
  
      @Nullable
      public String getThumbnailOffsetDescription()
      {
          Integer offset = _directory.getAdjustedThumbnailOffset();
  
          return offset == null ? null : offset.intValue() + " bytes";
      }
  }
  