import java.io.File;
import java.net.URI;
import java.net.URISyntaxException;
import java.net.URL;
import java.nio.file.Path;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class FileOrUriNotationConverter implements NotationConverter<Object, Object> {

    private static final Pattern URI_SCHEME = Pattern.compile("([a-zA-Z][a-zA-Z0-9+-\\.]*:).+");

public abstract class AbstractFileResolver implements FileResolver {
    private final NotationParser<Object, Object> fileNotationParser;

    protected AbstractFileResolver() {
        this.fileNotationParser = FileOrUriNotationConverter.parser();
    }

    public FileResolver withBaseDir(Object path) {
        return new BaseDirFileResolver(resolve(path));
    }

    @Override
    public FileResolver newResolver(File baseDir) {

  - A Path instance.
  - A Directory instance.
  - A RegularFile instance.
  - A URI or URL instance.
  - A TextResource instance.""")
    }

    def parse(def value) {
        return FileOrUriNotationConverter.parser().parseNotation(value)
    }