Handling asynchronous responses

Posted by James P. on Stack Overflow See other posts from Stack Overflow or by James P.
Published on 2010-05-23T17:44:17Z Indexed on 2010/05/23 17:51 UTC
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Filed under:

java

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asynchronous

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ftp

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handling

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responses

I'm building an FTP client from scratch and I've noticed that the response codes aren't immediate (which is no surprise). What would be a good approach for getting the corresponding code to a command?

Below is an example of the output of Filezilla server. The response code is the three digits near the end of each line.

(000057) 23/05/2010 19:43:10 - (not logged in) (127.0.0.1)> Connected, sending welcome message...
(000057) 23/05/2010 19:43:10 - (not logged in) (127.0.0.1)> 220-FileZilla Server version 0.9.12 beta
(000057) 23/05/2010 19:43:10 - (not logged in) (127.0.0.1)> 220-written by Tim Kosse ([email protected])
(000057) 23/05/2010 19:43:10 - (not logged in) (127.0.0.1)> 220 Please visit http://sourceforge.net/projects/filezilla/
(000057) 23/05/2010 19:43:10 - (not logged in) (127.0.0.1)> user anonymous
(000057) 23/05/2010 19:43:10 - (not logged in) (127.0.0.1)> 331 Password required for anonymous

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