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From "Alex Karasulu" <>
Subject RE: Commons server infrastructure proposal
Date Mon, 12 Apr 2004 14:18:50 GMT

> -----Original Message-----
> From: Jeffrey D. Brekke []
> Sent: Monday, April 12, 2004 8:45 AM
> To: Jakarta Commons Developers List
> Cc:
> Subject: Re: Commons server infrastructure proposal
> Sounds like there may be some overlap with Commons Net.  I know there
> is a point at which we'd like to move towards implementation with nio
> in [net].  More information may help.
> >>>>> On Mon, 12 Apr 2004 13:14:59 +0200, Mladen Turk <>
> said:
> > Hi all, I have a project to propose that the 'commons philosophy'
> > can benefit thought.  I'm aware of incubation process, but since I'm
> > an active ASF member for years now, I would like to hear your
> > opinions before.

> > What I would like to know is are there any need and will to support
> > such a project.

Yes absolutely.  I too started to look for such a project but could 
not really find one.  I found a few components that could be used over 
at Avalon but they seemed a bit to abstract so I had to implement my 
own.  BTW I'm currently involved with the directory 
project in the incubator where the flagship server is an LDAP server
named Eve.  This is what I wanted such a framework for.

Plus using selectable IO is critical since LDAP is a stateless protocol 
and the use of a thread per connection was out of the question.  I
think we could leverage some of the code in Eve however I would rather 
start from scratch again and retro fit this framework back into Eve
later.  The primary reason being: starting from scratch as a group 
is easier.  There are however good examples that still can be used
but that can be done in an as needed bases if appropriate.

> > Briefly the project I meant to do can be seen as a generic server
> > side component.  It will based on NIO, and it will have plain
> > socket, SSL, and a generic channel support(Pipes and ByteBuffers),
> > so that communication doesn't necessary has to came from the wire,
> > but rather from any data source.

Then we just want it to depend on SelectableChannels to enable 
IO from any medium as you suggest: socket, pipe, or buffer.

> > What's the purpose of it?  Making a generic infrastructure for a
> > wide variety of server-like applications like http/ftp/mail servers,
> > reverse proxies, load balancers, clusters, game servers, etc.
> > Why?  During past few years I found myself writing over and over
> > again some things that if properly designed could spare me lots of
> > time.

Me too.  Plus you never know when you have gone off the track.  It 
takes some peer review to keep things clean and reusable.

> > Realy why?  Something like that doesn't exists (at least I'm not
> > aware of such a thing having BSD-like licence), and although I have
> > a large codebase finished, I'm not the smartest guy around :)

I'm not a smart guy either.  That's why I know that my implementation 
must be hoky to say the least in some places.  I'd rather brainstorm 
in a group to gain from the experiences of the collective.

BTW I already have a ton of questions on the matter so I can't wait to 
get started.  Count me in if and when it happens.


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