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From "Andy Schwartz (Commented) (JIRA)" <>
Subject [jira] [Commented] (TRINIDAD-2234) Pregeneration of skin style sheets
Date Tue, 06 Mar 2012 14:59:57 GMT


Andy Schwartz commented on TRINIDAD-2234:

Note that this issue:

TRINIDAD-2235 Skinning: stable names for generated style sheets

Is a pre-requisite for any skin pregeneration solution.  Without stable names for generated
style sheets, it won't be possible for Trinidad applications to route style sheet requests
hosted/pregenerated style sheets since the file names would not necessarily align.
> Pregeneration of skin style sheets
> ----------------------------------
>                 Key: TRINIDAD-2234
>                 URL:
>             Project: MyFaces Trinidad
>          Issue Type: New Feature
>          Components: Skinning
>    Affects Versions: 2.0.1-core
>            Reporter: Andy Schwartz
>            Assignee: Andy Schwartz
>            Priority: Minor
> Trinidad skinning dynamically generates style sheets at runtime to meet context-specific
(ie. platform/agent/locale/accessibility-specific) skinning requirements.  While dynamic generation
of style sheets is beneficial in that it allows fine tuning of which styles are delivered
for particular contexts, it can complicate some use cases.
> One case that dynamic generation makes particularly difficult is where the application
and its resources are split across separate hosts/domains.  In this case, resources are typically
hosted on a dedicated server that can be:
> a) Shared across multiple applications, thus improving the likelihood of browser cache
hits.  And...
> b) More easily fronted by a CDN (without also having to route all application traffic
through a CDN ).
> Since a single skin definition can result in an arbitrary number of generated style sheets,
it is not possible to host Trinidad skin/style sheets on a dedicated server - ie. there is
currently no reliable way to pre-generate all possible variants of any given skin.
> This issue requests that we add a new skin pregeneration feature that would allow all
style sheet variants for any skin to be generated prior to application deployment.  This would
facilitate the the split application/resources scenario described above.

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