Utility for extracting "common values" such as Image-Height, Creation_Date, etc?

[RichMacDonald]

As useful as the metadata-extractor is, and all the work that has gone into it, there does not seem to be an easy way to extract well-known "common" values, such as image-height, image-width, creation-date, and last-modification-date. That means we are all individually reinventing the wheel for this need.

For example, I have the following utility class (just showing the image-height case):

public class MetadataWrapper {

	private final Metadata metadata;
	public final File file;

	public MetadataWrapper(File file) throws Exception {
		this.file = file;
		metadata = ImageMetadataReader.readMetadata(file);
	}

	public Integer getImageHeight() {
		return coalesce(
				() -> int_(JpegDirectory.class, JpegDirectory.TAG_IMAGE_HEIGHT),
				() -> int_(PngDirectory.class, PngDirectory.TAG_IMAGE_HEIGHT),
				() -> int_(AviDirectory.class, AviDirectory.TAG_HEIGHT),
				() -> int_(BmpHeaderDirectory.class, BmpHeaderDirectory.TAG_IMAGE_HEIGHT),
				() -> int_(EpsDirectory.class, EpsDirectory.TAG_IMAGE_HEIGHT),
				() -> int_(ExifSubIFDDirectory.class, ExifSubIFDDirectory.TAG_EXIF_IMAGE_HEIGHT),
				() -> int_(CanonMakernoteDirectory.class, AFInfo.TAG_IMAGE_HEIGHT),
				this::imageHeightCasioType2Makernote,
				() -> int_(ExifIFD0Directory.class, ExifDirectoryBase.TAG_IMAGE_HEIGHT),
				() -> int_(ExifImageDirectory.class, ExifDirectoryBase.TAG_IMAGE_HEIGHT),
				() -> int_(ExifInteropDirectory.class, ExifDirectoryBase.TAG_IMAGE_HEIGHT),
				() -> int_(GpsDirectory.class, ExifDirectoryBase.TAG_IMAGE_HEIGHT),
				() -> int_(GifImageDirectory.class, GifImageDirectory.TAG_HEIGHT),
				() -> int_(HeifDirectory.class, HeifDirectory.TAG_IMAGE_HEIGHT),
				() -> int_(IcoDirectory.class, IcoDirectory.TAG_IMAGE_HEIGHT),
				() -> int_(KodakMakernoteDirectory.class, KodakMakernoteDirectory.TAG_IMAGE_HEIGHT),
				() -> int_(OlympusMakernoteDirectory.class, OlympusMakernoteDirectory.TAG_IMAGE_HEIGHT),
				() -> int_(PanasonicMakernoteDirectory.class, PanasonicMakernoteDirectory.TAG_PANASONIC_IMAGE_HEIGHT),
				() -> int_(WebpDirectory.class, WebpDirectory.TAG_IMAGE_HEIGHT),
				() -> int_(QuickTimeVideoDirectory.class, QuickTimeVideoDirectory.TAG_HEIGHT)
			);
	}

	private <T> T coalesce(Supplier<T> ... suppliers) {
		for (Supplier<T> supplier : suppliers) {
			T answer = supplier.get();
			if (answer != null) {
				return answer;
			}
		}
		return null;
	}

	private @Nullable <T extends Directory> Integer int_(Class<T> dirClass, int tagType) {
		T dir = getFirstDirectoryOfType(dirClass);
		if (dir == null) {
			return null;
		}
		return dir.getInteger(tagType);
	}

	private @Nullable <T extends Directory> T getFirstDirectoryOfType(Class<T> dirClass){
		return metadata.getFirstDirectoryOfType(dirClass);
	}

	private @Nullable Integer imageHeightCasioType2Makernote() {
		Integer val = int_(CasioType2MakernoteDirectory.class, CasioType2MakernoteDirectory.TAG_IMAGE_SIZE);
		if (val == null) {
			return val;
		}
		return switch (val) {
			case 0 -> 640;
			case 4 -> 1200;
			case 5 -> 1536;
			case 20 -> 1712;
			case 21 -> 1944;
			case 22 -> 1728;
			case 36 -> 2008;
			default ->
			throw new IllegalArgumentException("Unexpected value: " + val);
		};
	}
}

Would this be useful to anyone else? After being cleaned up and extended to other properties, of course. Handling of dates with and without timezones, etc, etc.