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https://issues.apache.org/jira/browse/SLING-2612?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13467586#comment-13467586
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Carsten Ziegeler commented on SLING-2612:
-----------------------------------------
Looks good, I modified it a little bit more and also added code to clear those
attributes once the artifact is not in the installed state anymore
> Add support for excluding artifacts for installation
> ----------------------------------------------------
>
> Key: SLING-2612
> URL: https://issues.apache.org/jira/browse/SLING-2612
> Project: Sling
> Issue Type: Improvement
> Components: Installer
> Affects Versions: Installer Core 3.3.8
> Reporter: Bertrand Delacretaz
> Assignee: Carsten Ziegeler
>
> The installer currently executes all its operations without checking if they
> make sense in the current environment, we need more granularity for a few use
> cases like the ones below.
> 1) SLING-2569: do not install some bundles depending on their headers and the
> current environment.
> 2) Depending on the current state of the world, a ResourceTransformer needs
> to behave differently. For example, do not activate a RegisteredResource that
> contains demo content, but just upload it to the content repository.
> Note that just ignoring resources would not cover case 2), where the "upload"
> operation happens but not the "activate" operation.
> We might use a new InstallRule interface for that, something like:
> // Service that provides a specific rule
> public interface InstallRule {
> public boolean shouldExecute(String operation, RegisteredResource r);
> }
> The installer can then have a master InstallRule that queries all InstallRule
> services in sequence (ordered by service ranking) and ANDs the results.
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