xsi:schemaLocation attribut in GML output

[jezekjan]

When exporting data to GML by ogr2ogr 1.6.0 I'm getting the xsi:schemaLocation attribute like this:

xsi:schemaLocation="http://ogr.maptools.org/lineogr.xsd"

but according to the specification ​http://www.w3.org/TR/xmlschema-1/#schema-loc the xsi:schemaLocation attribute should contain namespace and xsd file so the output should be:

xsi:schemaLocation="http://ogr.maptools.org/ lineogr.xsd"

It seems to me that this is due to this fix http://trac.osgeo.org/gdal/changeset/9831. This bug causes an error when GML generated by ogr2ogr is being parsed by GeoTools 2.5.5.

[warmerdam]

Chaitanya,

Please review the specification to confirm and fix in trunk, 1.6 branch and if the problem exists there the 1.5 branch as well.

[chaitanya]

jezekjan,

According to the xml specification the value should contain pairs of namespace names and schema document locations. So, shouldn't it be

xsi:schemaLocation="http://ogr.maptools.org/ http://ogr.maptools.org/lineogr.xsd"

instead of

xsi:schemaLocation="http://ogr.maptools.org/ lineogr.xsd"

[jezekjan]

Chaitanya, if I understand it right the second parameter is xsd document location that is usually shipped with gml so if xsd is generated to same directory as gml then file name is enough (this is the way how for example gvSig gml export works). Whole http link is usually used for general xsd (like feature.xsd) that are publicly available on the internet.

[chaitanya]

Replying to jezekjan:

Going ahead with the fix then.

[jezekjan]

Thanks! What a fast action :-)

[chaitanya]

Fixed the error in the trunk (r16742), 1.6 (r16743) and 1.5 (r16744).

[chaitanya]

jezekjan,

I tested this with GeoTools with the sample from http://trac.osgeo.org/gdal/browser/trunk/autotest/ogr/data/test_point.gml http://trac.osgeo.org/gdal/browser/trunk/autotest/ogr/data/test_point.xsd

Please reopen this ticket if you still have any problem.