[Geotools-gt2-users] GeoJSON - No such Attribute problem

[Gus M. <gus...@gm...>]

Hi All,

I've been happily using the GeoJSON library but have run into a
problem.  Basically it doesn't seem to handle the case where features
have differing properties, for example;

Reading this feature collection

{"type":"FeatureCollection",
	"features":[
		{"type":"Feature","geometry":{"type":"Point","coordinates":[144.5719,-37.6786]},"properties":{"A":"1"},"id":"points.1"},
		{"type":"Feature","geometry":{"type":"Point","coordinates":[144.5976,-37.678]},"properties":{"B":"3"},"id":"points.3"}
	]
}

With something like this

FeatureJSON fj = new FeatureJSON();
FeatureIterator<SimpleFeature> features =
fj.streamFeatureCollection(url.openConnection().getInputStream());

while (features.hasNext()) {
            SimpleFeature feature = (SimpleFeature) features.next()
}

Results in an exception
 java.lang.IllegalArgumentException: No such attribute:B

Any thoughts? Is there a workaround?

Regards
Gus MacAulay