public static ImageRequest.RequestLevel convertCacheLevelToRequestLevel(
      AbstractDraweeControllerBuilder.CacheLevel cacheLevel) {
    switch (cacheLevel) {
      case FULL_FETCH:
        return ImageRequest.RequestLevel.FULL_FETCH;
      case DISK_CACHE:
        return ImageRequest.RequestLevel.DISK_CACHE;
      case BITMAP_MEMORY_CACHE:
        return ImageRequest.RequestLevel.BITMAP_MEMORY_CACHE;
      default:
        throw new RuntimeException("Cache level" + cacheLevel + "is not supported. ");
    }
  }
Concrete implementation of ImagePipeline Drawee controller builder.

<p>See {@link AbstractDraweeControllerBuilder} for more details.
drawee-backends/drawee-pipeline/src/main/java/com/facebook/drawee/backends/pipeline/PipelineDraweeControllerBuilder.java