[Jboss-dev-forums] [Design of Mail Services] - Re: Minor fixes to HEAD and integration of Nokia branch

[mikezzz <nu...@jb...>]

A quick note that I have created an interface called Copier and a couple of implemenations (SimpleCopier, DotStuffingCopier and DotUnstuffingCopier).  SMTP uses the DotUnstuffingCopier for both Simple and Stored mail bodies (having them both use the same code is a good thing).  DotStuffingCopier is for POP, but I haven't integrated it yet.

This code supercedes the Nokia branch code.  Some micro-benchmarking that I have done shows the Copier interface to be marginally quicker and more memory efficient than the Nokia code, around 2-5% (but I had to beat it to death with a stick in order to get it that fast).  The Copier interface is also more reusable, however not as elegant, from a design perspective, as the nested streams. It is not possible aggregate Copier imeplematations, each one needs to be implemented seperately.  I could further wax philisophical on abstraction vs performance, but I will stop there before people start falling asleep.

Mike.

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