[wildfly-dev] Dropping legacy XSD schemas & its parsers

[Brian Stansberry]

I forgot to say... is this better dealt with early in 10?

On 3/27/15 10:07 AM, Brian Stansberry wrote:
> My only objection is to spending a lot of energy refactoring to rip
> things out, reviewing the refactors, and fixing the unexpected breakage.
> I don't have a problem with the general principle dropping parser
> support for really old versions.
>
> It's mildly tempting to support the 7.2.0 xsds, as that's the last 7
> release. But if we're going to have any cutoff, IMHO keeping the rule
> consistent with the mixed domain support cutoff is better. KISS.
>
> On 3/26/15 6:13 PM, Tomaž Cerar wrote:
>> Hi folks,
>>
>> we discussed on team meeting in Brno about dropping support for old
>> legacy host controllers
>> when running in mixed domain mode (having DC of newer version managing
>> older version HCs)
>>
>> We also discussed dropping old xsd sachems & parsers as it would help us
>> cleanup and simplify code
>> in many subsystems as there are cases where we support and maintain 5
>> and more different
>> versions of parser. For example currently web subsystem has 8,
>> infinispan 7, ejb  & jackorb have 6, ...
>> We still have parsers that that ware shipped back in 7.0.0 and became
>> obsolete in later 7.0.x releases.
>>
>> Given that we decided that we are dropping support for running mixed
>> domain mode for host controller
>> that are older than 7.3.0 (EAP 6.2) as is tracked by
>> https://issues.jboss.org/browse/WFLY-3564
>>
>> I would also like to suggest that we do the same for xml schemas &
>> parsers.
>>
>> *What is the downside?*
>>
>> Automatic upgrading from JBoss AS 7.1.x/EAP < 6.2 version with using
>> same standalone.xml won't work anymore.
>> User would need to upgrade to WildFly 8.x and from there to 9 or 10
>> (depending when we drop this)
>> Because of replacement of web subsystem with undertow and introduction
>> of few other subsystems (io, SM)
>> this already doesn't work for 7.x-->8+, but we do have plans how to
>> improve that.
>>
>>
>> So, are there any objections against this?
>>
>> --
>> Tomaž
>>
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>>
>
>


-- 
Brian Stansberry
Senior Principal Software Engineer
JBoss by Red Hat