[jira] [Commented] (CLEREZZA-460) Use whiteboard pattern for Renderlets

["Reto Bachmann-Gmür (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CLEREZZA-460?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13011228#comment-13011228 ] 

Reto Bachmann-Gmür commented on CLEREZZA-460:
---------------------------------------------

Thanks Daniel. I applied your patch. There is a hidden (by specifying the classname as a string) circular dependency to scala server pages, this should be avoided, the easiest I think would be to integrate this template in the ExceptionMapper, but this would require scala to java conversion (or changing to scala the rest).

> Use whiteboard pattern for Renderlets
> -------------------------------------
>
>                 Key: CLEREZZA-460
>                 URL: https://issues.apache.org/jira/browse/CLEREZZA-460
>             Project: Clerezza
>          Issue Type: Improvement
>            Reporter: Reto Bachmann-Gmür
>            Assignee: Reto Bachmann-Gmür
>         Attachments: patch-typerendering-core.diff
>
>
> The current mechanism for renderlets is overly complex. Instead of describing renderlets in a graph rendelets should be services that have properties indicating the rdf type and the mode-pattern they handle.
> The priority for selecting renderlets should be:
> - type, according to type-priority list
> - length of regex math (the matching regex with the most alphanumeric characters wins)
> - startlevel of the bundle providing the service

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