How to extract coordinate from GML File in Java using geotools with STAX

Question

I would like to extract all coordinates from my GML file and convert them in geometry type:

<geometrie>
                <gml:MultiCurve srsName="EPSG:3944" srsDimension="3">
                    <gml:curveMember>
                        <gml:LineString>
                            <gml:posList>1787810.8386000022 3214988.2920000004 0 1787810.7756000012 3214988.686999998 0</gml:posList>
                        </gml:LineString>
                    </gml:curveMember>
                </gml:MultiCurve>
            </geometrie>

....

<geometrie>
                <gml:Point srsName="EPSG:3944" srsDimension="3">
                    <gml:pos>1787697.0650999993 3214943.1966999993 0</gml:pos>
                </gml:Point>
            </geometrie>

I found the class GMLFilterGeometry in geotools but it's implemented in SAX and not STAX. It exists any over class like GMLFilterGeometry in STAX? Or another library can do that?

Answer 1

If you review the GeoTools XML FAQ you will see a list of supported libraries but STAX is not listed so I think you are out of luck.

That said, the joy of open source libraries is that you can implement your own solution (and push it into the GeoTools library for the benefit of others), especially since the GeoTools system is built on a factory principal making it easy to insert your own code.

However, if all you need to do is parse some GML into GeoTools features then I would go with the existing code base and not worry too much about the details.