[Geoserver-users] Interceptor for OWS service in custom plugin

Is it possible to create a geoserver plugin which can intercept the ows request and response.

For example, for a given GetMap/GetFeature request, I can add extra parameters(like cql,bbox and etc) dynamically before geoserver execute the request. Just like the servlet filter mechanism.

The codebase is usually one level deeper, there are a callback for individual components that handle the request once it has been parsed.

In the specific case of WMS there is a “wms reflector” which provides an end point that fills in extra or missing parameters with good defaults and then call over to WMS.

If you want you could make a similar one for WFS :slight_smile:

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Jody Garnett

Hi Yang,
yes there is, it’s called DispatcherCallback.
If you look at the inheritance hierarchy in a IDE, you’ll find numerous usages, both
for monitoring requests and altering them.

Cheers
Andrea

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Regards, Andrea Aime

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