public final String buildAuthority ( ) { // scheme, [user info], host, [port] StringBuilder buf = new StringBuilder ( ) ; buf . append ( Preconditions . checkNotNull ( scheme ) ) ; buf . append ( "://" ) ; if ( userInfo != null ) { buf . append ( CharEscapers . escapeUriUserInfo ( userInfo ) ) . append ( ' ' ) ; } buf . append ( Preconditions . checkNotNull ( host ) ) ; int port = this . port ; if ( port != - 1 ) { buf . append ( ' ' ) . append ( port ) ; } return buf . toString ( ) ; }
Constructs the portion of the URL containing the scheme host and port .