Hi all,
some time ago I was playing with a GeoServer install where I had to create config variations out of a
basic pattern, in particular, create multiple layer groups with the same layers, in the same order,
and different styles, and could also have used a way to do a full recursive copy of a store, to keep
the old one, but also have a new one that I could attach to a different data source offering the same layers.
The “bulk copy” tool was not fully working for that case, so I ended up doing lightly scripted manipulation of
XML files instead… and set a mental note aside to actually do something about it.
First thing, took (quite!) some time to do a CatalogVisitor that would do a full clone of whatever catalog object
was passed onto it, handling also workspace specific resources and the like, having lots of fun with nested
layer groups. I have that working and with a nice test suite.
Now, it’s time to hook it up to the GUI. Since a copy operation is not destructive, I’m leaning towards a
“file system” like copy, select what you want, copy, done, no questions asked. Made a couple of examples,
groups and workspaces, for you to look at.
Here is an example with layer groups, before copy:
and right after it:
Gets more interesting copying workspaces though. Here is right after copying “topp”, in various places:
(the release data dir does not have workspace specific styles and groups, so nothing to show there).
One thing I was thinking about, is whether we want to have the copy to always be recursive.
There are only two cases where there is actual recursion though:
- Workspaces. Well, don’t think one wants to copy a workspace to save keystrokes in the namespace URI
- Stores. In this case the recursion copies all layers too. Here one may like to just copy the store config, some are pretty elaborate. How about a checkbox on the side of the copy link, to enable/disable recursion?
If anyone wants to play with the above live, or have a look at the code, it’s in this branch (commits still messy, will clean them up before making a PR):
https://github.com/aaime/geoserver/tree/copy_all
Cheers
Andrea
···
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