}
        } else if (cliRequest.getRootDirectory() != null) {
            projectSettingsFile = DEFAULT_PROJECT_SETTINGS_FILE;
            projectSettingsFile = resolveFile(
                    projectSettingsFile, cliRequest.getRootDirectory().toString());
        } else {
            projectSettingsFile = null;
        }

        request.setTransformerContextBuilder(contextBuilder);
        return this;
    }

    @Override
    public Path getRootDirectory() {
        return request.getRootDirectory();
    }

    @Override
    public ModelBuildingRequest setRootDirectory(Path rootDirectory) {
        request.setRootDirectory(rootDirectory);
        return this;
    }

    @Override
    public Instant getStartTime() {
        return getMavenSession().getRequest().getStartTime().toInstant();
    }

    @Override
    public Path getRootDirectory() {
        return getMavenSession().getRequest().getRootDirectory();
    }

    @Override
    public Path getTopDirectory() {
        return getMavenSession().getRequest().getTopDirectory();
    }

    @Nonnull
    @Override

    }

    @Override
    public boolean isRootProject() {
        return getBasedir().equals(getRootDirectory());
    }

    @Override
    public Path getRootDirectory() {
        return project.getRootDirectory();
    }

    @Override
    public Optional<Project> getParent() {
        MavenProject parent = project.getParent();

     */
    public Path getTopDirectory() {
        return request.getTopDirectory();
    }

    /**
     * @see MavenExecutionRequest#getRootDirectory()
     * @since 4.0.0
     */
    public Path getRootDirectory() {
        return request.getRootDirectory();
    }

    public MavenExecutionRequest getRequest() {
        return request;
    }

        setWorkspaceModelResolver(request.getWorkspaceModelResolver());
        setTransformerContextBuilder(request.getTransformerContextBuilder());
        setRootDirectory(request.getRootDirectory());
    }

    @Deprecated
    @Override
    public File getPomFile() {
        return pomPath != null ? pomPath.toFile() : null;
    }

    @Override
    public Path getPomPath() {

     * containing the {@code .mvn} directory or flagged with {@code root="true"}.
     *
     * @throws IllegalStateException if the root directory could not be found
     * @see Session#getRootDirectory()
     */
    @Nonnull
    Path getRootDirectory();

    /**
     * Returns project parent project, if any.
     * <p>
     * Note that the model may have a parent defined, but an empty parent

        return request;
    }

    public void setUserProperties(Properties properties) {
        this.userProperties.putAll(properties);
    }

    public Path getRootDirectory() {
        return rootDirectory;
    }

    public Path getTopDirectory() {
        return topDirectory;
    }

        context.userHomeDirectory = requireNonNull(getUserHomeDirectory(context));

        // top/root
        context.topDirectory = requireNonNull(getTopDirectory(context));
        context.rootDirectory = getRootDirectory(context);

        // options
        List<O> parsedOptions = parseCliOptions(context);

        // warn about deprecated options

    }

    private InputSource getSource(Map<String, ?> options) {
        Object value = (options != null) ? options.get(INPUT_SOURCE) : null;
        return (InputSource) value;
    }

    private Path getRootDirectory(Map<String, ?> options) {
        Object value = (options != null) ? options.get(ROOT_DIRECTORY) : null;
        return (Path) value;
    }