Re: [Geotools-devel] OGR datastore resurrected, moving forward

[Andrea A. <aa...@op...>]

Simone Giannecchini ha scritto:
>> Keeping the datastore in synch with imageio-ext is kind
>> of important for any application that might use both, that
>> is going to be possible only if the two share the same
>> jars and the same native libraries.
>> The datastore has been fixed and ported towards GDAL 1.7.1,
>> afaik imageio-ext is going in the same direction?
> 
> yes, imageio-ext 1.1 uses gdal 1.7.1

As far as I can see it's still not released. But I guess
we'll switch trunk to it as soon as the release is out,
right?

>> We have to agree on a groupId/artifact for the GDAL 1.7.1
>> java bindings jar and push it onto some repo.
>>
> 
> not sure I am following here, can you explain?

Well, the OGR datastore needs the gdal bindings around.
However, it does not need imageio-ext raster stuff to be
around, just the GDAL bindings jar generated by SWIG
and the native libraries.

So I think we should have the GDAL bindings jars published
in a repo where both GeoTools and imageio-ext can use it.
The group is could be org.gdal and the artifact id
gdal-bindings, version 1.7.1

> 
>> The current GDAL 1.7.1 build is simple enough, I hope that
>> will make it easier for people to build their own customized
>> OGR that still works with our stores/coverage readers (GDAL/OGR
>> supports a ton of formats and we cannot really build them all).
>> In particular I'm thinking about the GRASS formats, which
>> I would very much like to see but that I understand would
>> be a nuisance to build on all platforms (assuming imageio-ext
>> keeps on building the native libraries, that is).
>>
> 
> we still have a small patch to apply for managing colormapped raster
> data. I just asked daniele to check if this patch can be  accepted
> into the gdal codebase so that we don't have to bring it with us.
> 
> Anyway, baseline is, yes, I agree we need to coordinate here but I
> would really like to avoid more work coming from building the OGR
> countepart, unless it is really small.

Very much understandable. When you build the GDAL native libraries
some basic OGR stores come into the package by default, or not?
If so, we can have those built while you're building the depds
for imageio-ext, and if people need more, the build process for
OGR is straightforward enough.

Finger crossed about that patch, but in the ends it means the
imageio-ext build of GDAL 1.7.1 will have to be custom and
we'll have to wait at the very least for 1.7.2 to be able and use
a normal GDAL build

Cheers
Andrea


-- 
Andrea Aime
OpenGeo - http://opengeo.org
Expert service straight from the developers.