returns the metadata available for this request . concode_field_sep ServerInfo UNKNOWN_SERVER_INFO concode_elem_sep InetSocketAddress PORT_ZERO concode_field_sep void drop concode_elem_sep Request request concode_elem_sep long arrivalTimeNanos concode_elem_sep ServerInfo serverInfo concode_elem_sep void reply concode_elem_sep boolean isExpired
RequestMetadata function ( ) { return RequestMetadataImpl . create ( Instant . now ( ) , Optional . empty ( ) , Optional . empty ( ) ) ; }