On Thu, Feb 25, 2016 at 2:06 PM, Andreas Watermeyer <
andreas.waterme...@its-telco.de> wrote:
> Hi Andrea,
>
> variable substitution might be quite easy to achieve when implemented in
> the config parsing layer - XStream.
> XStream has "Converters" for example for to-string conversion. That might
> work, affecting all configurations globally.
> What do you think?
>
Could work, but wouldn't it mean that you cannot edit stuff with variables
anymore in the UI, and if you
try to edit and save, you might get your variable overridden (unless of
course there is something replacing them back).
Anyways, it's a possibility, but GeoServer makes heavy use of custom
converters, some of which spread out in the code
base, so... hmm... could be quite a bit of work, and again, case by case
stuff (which field of which bean do we need
to perform substitution on?).
Also, not everything in GeoServer is driven by XStream, some community
modules are not, not completely
sure what the security subsytem does either.
Anyways, here is the largest concentrated lot of converters, but you'll
find others around:
https://github.com/geoserver/geoserver/blob/master/src/main/src/main/java/org/geoserver/config/util/XStreamPersister.java
As said, I'd first identify which types of configuration you want to make
templatable, and then
check what can be done depending on how they are managed internally.
Cheers
Andrea
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