configuration.addChild("uri", "${session.rootDirectory.uri}");
        configuration.addChild("path", "${session.rootDirectory}");
        configuration.addChild("uriString", "${session.rootDirectory.uri.string}");
        configuration.addChild("uriAsciiString", "${session.rootDirectory.uri.ASCIIString}");
        configuration.addChild("pathString", "${session.rootDirectory.string}");

    }

    /*
    public int containerCountForUri( String uri )
        throws IOException
    {
        Validate.notEmpty( uri, "uri can neither be null nor empty " );
        ModelDataSource source = new DefaultModelDataSource();
        source.init( domainModel.getModelProperties(), null );
        return source.queryFor( uri ).size();
    }
    */

        this.transporterProvider = requireNonNull(transporterProvider);
    }

    @Override
    public Transport transport(Session session, RemoteRepository repository) {
        try {
            URI baseURI = new URI(repository.getUrl());
            return new DefaultTransport(
                    baseURI,
                    transporterProvider.newTransporter(
                            InternalSession.from(session).getSession(),

        configuration.addChild("uri", "${session.rootDirectory.uri}");
        configuration.addChild("path", "${session.rootDirectory}");
        configuration.addChild("uriString", "${session.rootDirectory.uri.string}");
        configuration.addChild("uriAsciiString", "${session.rootDirectory.uri.ASCIIString}");
        configuration.addChild("pathString", "${session.rootDirectory.string}");

        this.transporterProvider = requireNonNull(transporterProvider);
    }

    @Override
    public Transport transport(Session session, RemoteRepository repository) {
        try {
            URI baseURI = new URI(repository.getUrl());
            return new DefaultTransport(
                    baseURI,
                    transporterProvider.newTransporter(
                            InternalSession.from(session).getSession(),

 * encoding scheme. The set of safe characters (those which remain unescaped) can be specified on
 * construction.
 *
 * <p>This class is primarily used for creating URI escapers in {@link UrlEscapers} but can be used
 * directly if required. While URI escapers impose specific semantics on which characters are
 * considered 'safe', this class has a minimal set of restrictions.
 *
 * <p>When escaping a String, the following rules apply:

    protected static final String ERROR = "error";

    protected static final String ERROR_DESCRIPTION = "error_description";

    protected static final String ERROR_URI = "error_uri";

    protected static final String ID_TOKEN = "id_token";

    protected static final String CODE = "code";

    protected long acquisitionTimeout = 30 * 1000L;

/**
 * Tests for the {@link UrlEscapers} class.
 *
 * @author David Beaumont
 */
@GwtCompatible
public class UrlEscapersTest extends TestCase {
  /**
   * Helper to assert common expected behaviour of uri escapers. You should call
   * assertBasicUrlEscaper() unless the escaper explicitly does not escape '%'.
   */
  static void assertBasicUrlEscaperExceptPercent(UnicodeEscaper e) {

            Source rel = source.resolve(relPath);
            return rel != null ? new SourceWrapper(rel) : null;
        }

        @Override
        public URI getLocationURI() {
            Path path = source.getPath();
            return path != null ? path.toUri() : URI.create(source.getLocation());
        }
    }

     */
    @Nonnull
    InputStream openStream() throws IOException;

    /**
     * Provides a user-friendly hint about the location of the source.
     * This could be a local file path, a URI or just an empty string.
     * The intention is to assist users during error reporting.
     *
     * @return a user-friendly hint about the location of the source, never {@code null}
     */
    @Nonnull