Hi,
I am using geotools 14.2 (great software, btw) and ran into the following
problem:
I am trying to access a geodatabase (gdb), which contains street data.
This is the relevant code:
Map<String, String> connectionParams = new HashMap<String, String>();
connectionParams.put("DriverName", "FileGDB");
connectionParams.put("DatasourceName", new
File("G:/foo.gdb/").getAbsolutePath());
lu2000DataStore = factory.createDataStore(connectionParams);
SimpleFeatureSource lu2000Verkehr =
lu2000DataStore.getFeatureSource("d_003_verkehrsnetz");
lu2000Verkehr.getSchema();
The getSchema()-call produces the following exception:
Exception in thread "main" java.lang.RuntimeException: java.io.IOException:
Unknown geometry type: 5
at
org.geotools.data.store.ContentFeatureSource.getAbsoluteSchema(ContentFeatureSource.java:345)
at
org.geotools.data.store.ContentFeatureSource.getSchema(ContentFeatureSource.java:312)
at
org.geotools.data.store.ContentFeatureSource.getSchema(ContentFeatureSource.java:112)
at urbanGrowthModeling.PrepareData.main(PrepareData.java:158)
Caused by: java.io.IOException: Unknown geometry type: 5
at
org.geotools.data.ogr.FeatureTypeMapper.getGeometryBinding(FeatureTypeMapper.java:313)
at
org.geotools.data.ogr.FeatureTypeMapper.getFeatureType(FeatureTypeMapper.java:80)
at
org.geotools.data.ogr.OGRFeatureSource.buildFeatureType(OGRFeatureSource.java:430)
at
org.geotools.data.ogr.OGRFeatureStore.buildFeatureType(OGRFeatureStore.java:120)
at
org.geotools.data.store.ContentFeatureSource.getAbsoluteSchema(ContentFeatureSource.java:343)
... 3 more
So, the geometry type seems to be unknown. Geometry type 5 typically refers to
MultiLineStrings. right?
According to FeatureTypeMapper.class, MultiLineStrings are in principal
supported:
private Class<? extends Geometry> getGeometryBinding(Object definition) throws
IOException {
long value = ogr.LayerGetGeometryType(definition);
// for line and polygon we return multi in any case since OGR will
declare simple for
// multigeom
// anyways and then return simple or multi in the actual geoemtries
depending on
// what it finds
if (value == ogr.GetPointType()
|| value == ogr.GetPoint25DType()) {
return Point.class;
} else if (value == ogr.GetLinearRingType()) {
return LinearRing.class;
} else if (value == ogr.GetLineStringType()
|| value == ogr.GetLineString25DType()
|| value == ogr.GetMultiLineStringType()
|| value == ogr.GetMultiLineString25DType()) {
return MultiLineString.class;
} else if (value == ogr.GetPolygonType()
|| value == ogr.GetPolygon25DType()
|| value == ogr.GetMultiPolygonType()
|| value == ogr.GetMultiPolygon25DType()) {
return MultiPolygon.class;
} else if (value == ogr.GetGeometryCollectionType()
|| value == ogr.GetGeometryCollection25DType()) {
return GeometryCollection.class;
} else if (value == ogr.GetGeometryNoneType()) {
return null;
} else if (value == ogr.GetGeometryUnknownType()) {
return Geometry.class;
} else {
throw new IOException("Unknown geometry type: " + value);
}
}
So, I guess, ogr.getMultiLineStringType() does return something else but 5,
right?
Is this the problem? Any ideas how to fix the problem? Any help is much
appreciated. Thank you in advance.
Best
Julian
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