import java.io.IOException;

public interface DataAccessor {
    DataSource createSource(String name, byte[] bytes, Level level) throws IOException;
    DataTarget createTarget(String name, Level level);
    DataTargetFactory createTargetFactory(String root, Level level) throws IOException;

    }

    @Override
    public DataTarget createTarget(String name, Level level) {
        return new Target(name);
    }

    @Override
    public DataTargetFactory createTargetFactory(final String root, Level level) {
        return new DataTargetFactory() {
            @Override
            public DataTarget createDataTarget(String name) {
                return new Target(root + "/" + name);

    }

    private Path getPath(String name, Level level) {
        return directoryProvider.getRoot(level).resolve(name);
    }

    @Override
    public DataTargetFactory createTargetFactory(final String root, Level level) throws IOException {
        final Path rootDir = Files.createTempDirectory(directoryProvider.getRoot(level), root);
        return new DataTargetFactory() {
            @Override

        String accessorName = getAccessorName();
        Packer packer = PACKERS.get(packerName);
        DataAccessor accessor = ACCESSORS.get(accessorName);
        packer.unpack(sample, accessor.createTargetFactory("unpack-" + accessorName, Level.Iteration));
    }

    private static class DefaultDirectoryProvider implements DirectoryProvider {
        private Path tempDir;
        private Path iterationDir;