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From "Alan D. Cabrera" <l...@toolazydogs.com>
Subject Re: Asynchronous DNS query as a separate submodule
Date Thu, 28 Feb 2008 08:27:42 GMT
+1


Regards,
Alan

On Feb 17, 2008, at 8:57 PM, 이희승 (Trustin Lee) wrote:

> Hi,
>
> I thought about incorporating asynchronous DNS query feature into MINA
> core, and reached to the temporary conclusion that it might be a  
> better
> idea to keep it as a separate submodule.
>
> The reasoning behind this idea is that InetSocketAddress() doesn't  
> query
> DNS server at all if an IP address is specified.  For example, new
> InetSocketAddress("gleamynode.net", 8080) causes a DNS lookup, but new
> InetSocketAddress("123.123.123.123", 8080) doesn't, which means that  
> we
> can still keep SocketAddress as a standard interface to represent an
> endpoint.
>
> In the separate module, user could request asynchronous DNS query like
> the following:
>
> DnsResolver resolver = ...;
> Future<InetAddress> f = resolver.query("gleamynode.net");
> // returns an InetAddress with an IP address rather than with host  
> name.
> InetAddress address = f.get();
>
> By providing this submodule rather than changing the core:
>
> 1) Most users are happy that they don't need to change anything.
> 2) Some users who needs asynchronous domain name resolution can use  
> the
> submodule for better simultaneous, asynchronous, complicated domain
> resolution.
>
> We could provide it as a subproject, but in this case, providing it  
> as a
> submodule will make MINA more complete network application framework.
> On the other point, it's also the implementation of DNS protocol, so  
> it
> might be a better idea to provide it as a subproject.
>
> WDYT?
>
> -- 
> Trustin Lee - Principal Software Engineer, JBoss, Red Hat
> --
> what we call human nature is actually human habit
> --
> http://gleamynode.net/


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