protected ProxyMessage exchange ( ProxyMessage request ) throws SocksException { ProxyMessage reply ; try { request . write ( out ) ; reply = formMessage ( in ) ; } catch ( SocksException s_ex ) { throw s_ex ; } catch ( IOException ioe ) { throw ( new SocksException ( SOCKS_PROXY_IO_ERROR , "" + ioe ) ) ; } return reply ; }
Sends the request reads reply and returns it throws exception if something wrong with IO or the reply code is not zero