9:58 PM (7 minutes ago)
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to geoserver-devel
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Hi,
I’m new to this list, so first step is to introduce myself.
My name is Peter and I am a geospatial developer with a strong interest in mapping standards. I’ve been working on a format that we call Map Markup Language for a while, and my organization sponsored development of the MapML Community Module.
I would like to continue development of that module. In that regard, I have been consulting with Chris Hodgson about developing an extension point to GeoServer that would allow people who choose to install the MapML Community Module to have easy access to links to map previews.
Hi Peter, welcomed.
In order to contribute you have to sign and send the OSGeo CLA, as per out contribution guidelines: https://github.com/geoserver/geoserver/blob/master/CONTRIBUTING.md
I don’t see a CLA on file. You might already have done so, sometimes it takes a while before the CLAs should up on archive. Let us know.
What we want to propose is to allow extension of the “Common Formats” field to allow a module like our own to add to the list of links to common formats.
The idea is to enable extension via beans in the spring application context of the extension to be found by the preview page and placed in that list. The default set of links (that is, the links that are already there) would not change.
The list was meant to be a set of formats that most users care for (the most important ones), it’s now outdated, KML should probably be removed and replaced by GeoJSON.
I don’t mind having it extensible. Hopefully the extension point is not going to get used much, if we end up with 20 formats in the common list, well, they are not common anymore, they become “most of the formats” 
I have got a feature branch that contains the required / proposed changes, if you would have a look and let me know what you think and what’s the next step for us, that would be awesome. Hopefully we have gone about this the right way, please let me know.
https://github.com/prushforth/geoserver/tree/preview-format-extension
(there’re a few too many commits in that branch, I tried to squash them but they refused. When it comes to a pull request I can squash them there, I believe).
Ability to squash depends on merges, if you do merges in between your commit I don’t think you can squash them anymore. Otherwise it should be fine.
Had a quick look on one of the commits (until you do a PR it’s hard to see the full set of changes) and added a few comments.
One thing that I’m missing (and maybe I’ve just overlooked it) is a way to sort the formats into a stable order. If it’s missing, then the
formats would show up in different order depending on the installation details, JVM used and so on. Chaos on one of the most used pages.
That needs to be handled
Cheers
Andrea
···
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