[jira] [Comment Edited] (SLING-6021) Supporting variable substitution in sling installer configuration factory

["Chetan Mehrotra (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SLING-6021?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15454403#comment-15454403 ] 

Chetan Mehrotra edited comment on SLING-6021 at 9/1/16 5:52 AM:
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One possibility is to make use of proposed ConfigurationPlugin enhancement [1] and modify the properties at the time it is delivered to components. This can then be implemented as a bundle in Felix project and can support constructs like

\$<prop-name>:<default>}

Where value can be looked from
# BundleContext
# System property
# Env property

[1] https://github.com/osgi/design/blob/master/rfcs/rfc0227/rfc-0227-ConfigAdminUpdates.pdf


was (Author: chetanm):
One possibility is to make use of proposed ConfigurationPlugin enhancement [1] and modify the properties at the time it is delivered to components

[1] https://github.com/osgi/design/blob/master/rfcs/rfc0227/rfc-0227-ConfigAdminUpdates.pdf

> Supporting variable substitution in sling installer configuration factory
> -------------------------------------------------------------------------
>
>                 Key: SLING-6021
>                 URL: https://issues.apache.org/jira/browse/SLING-6021
>             Project: Sling
>          Issue Type: New Feature
>          Components: Installer
>    Affects Versions: Installer Configuration Factory 1.0.14
>            Reporter: Ivo Leitão
>            Priority: Minor
>
> I'm not completely sure if this is a new feature or not but I've not find any documentation that explains how to perform variable transformation in configuration resources.
> In my use case I want to configure Apache Aries Transaction manager (snippet bellow) and I would like to use the ${sling.home} environment variable
> aries.transaction.recoverable=true
> aries.transaction.timeout=600
> aries.transaction.howl.maxBlocksPerFile=513
> aries.transaction.howl.maxLogFiles=2
> aries.transaction.howl.logFileDir=${sling.home}
> aries.transaction.howl.bufferSizeKBytes=4
> Is it possible or this is a completly new feature ? (I' ve tested and it does not work)



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