I figured out a bit more, but now I'm definitely leaving!
The problem is much much simpler than I would think.
I'm probably just using a bogus SLD for my coverage, but in the portion
of StreamingRenderer that figures out which attributes to request, it's
mis-calculating the attributes to query. It figures that my style
requires the "grid" attribute, then automatically appends the "geom"
attribute to the end (since it's the geometry attribute for the
feature). This "inverts" the featureType in the query, which causes the
createSubType call.
What's the right SLD to put in for a coverage?
--saul
Saul Farber wrote:
> Hey all,
>
> I'm going to have to leave this one till monday, but I'm having a
> problem rendering a geotiff coverage via the 1.4.x_merge_wcs branch off
> of trunk.
>
> Everything sets up just fine, the GeoTiffReader is wrapped up in a
> FeatureCollection with two attributes ("geom" and "grid") and that
> FeatureCollection is wrapped up in a CollectionDataStore.
>
> However, when AbstractDataStore goes to create a reader for the
> collection (via AbstractDataStore.getFeatureReader(Query, typename))
> somehowe the internal reader's version of the type is different than the
> AbstractDataStores 'remembered' type.
>
> getSchema() in the abstractdatastore claims it's {'grid','geom'}
>
> reader.getFeatureType() in abstractdatastore.getFeatureReader() claims
> it's {'geom','grid'}
>
>
> This causes a "ReTypeFeatureReader" to be created, and since the
> ReTypeFeatureReader can't deep-copy the "grid" object (nor should it!)
> the rendering fails.
>
>
> I'm still ramping up on the internal gt feature model, so my keeping
> track of all the threads is a bit of slow going. AbstractDataStore vs
> AbstractFeatureStore vs AbstractFeatureSource takes me about the times
> to go though and get right, etc.
>
> Can anyone tell me where the featureType would be getting re-created?
> One possibility is in DefaultFeatureResults, where depending on the
> query, DefaultFeatureResults might subType the featureType...
>
> Any ideas?
>
> --saul
>
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