[ http://issues.apache.org/jira/browse/DIRMINA-131?page=all ]
Niklas Therning reassigned DIRMINA-131:
---------------------------------------
Assign To: Niklas Therning (was: Trustin Lee)
> Get rid of complexity of the current IoFilterChain.
> ---------------------------------------------------
>
> Key: DIRMINA-131
> URL: http://issues.apache.org/jira/browse/DIRMINA-131
> Project: Directory MINA
> Type: Improvement
> Versions: 0.8
> Reporter: Trustin Lee
> Assignee: Niklas Therning
> Fix For: 0.9
>
> This issue is the summary of these threads in the Apache Directory Project
> mailing list:
> http://www.nabble.com/-mina-Refactoring-MINA-IoFilterChain-%28Was%3A-IoFilters%3A-DIRMINA-121-122%29-t553121.html
> http://www.nabble.com/-mina-IoFilters%3A-DIRMINA-121-122-t548297.html
> Currently, IoFilterChains are categorized into two; one is
> IoSessionManagerFilterChain, and the other is IoSessionFilterChain.
> IoSessionManagerFilterChain is shared by all sessions managed by the same
> IoSessionManager, and IoSessionFilterChain is individual for each session.
> But this design made the internal architecture of MINA filter chain very
> complex comparing its usefulness.
> What about just getting rid of the original IoSessionManagerFilterChain, and
> provide a simple data structure which just stores a list of filters but still
> implements IoFilter interface? By doing so, we can simply copy the chain
> into the IoSessionFilterChain before we start the communication, so the chain
> implementation gets simplified dramatically.
> Besides that, we have another option instead of using a simple data structure
> that implements IoFilterChain. It is called 'IoFilterChainBuilder'. It is a
> kind of command pattern which configures the filter chain instead of simply
> appending the filter list the chain. It provides great flexibility. For
> example, you can override the settings of per-manager filter chain in your
> per-port (or per-session) chain builder.
> I think it will be best if we can combine these two approach by providing an
> IoFilterChainBuilder implementation which simply appends the specified filter
> list to the per-session chain.
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