getFeatureWriter method failing
-------------------------------
Key: GEOT-2619
URL: http://jira.codehaus.org/browse/GEOT-2619
Project: GeoTools
Issue Type: Bug
Affects Versions: 2.5.4
Environment: Using Windows Vista SP1/SP2 & 7RC. Java version 1.6.0_14.
Reporter: Fabrice
Here is the problem : i'm working on a town generator. So using pre-existing
data such as town shapes, river or roads, i must create realistic village maps.
I'm working on the roads right now, and for most of the villages I'm working
on, there are no data about the roads. So I have to create them myself. What I
want to do is create new features and add them to my MapLayer, so that I can
display them to see if there are good or not. But when I try to add new
features to my layer, I get this error :
"
java.lang.UnsupportedOperationException: Schema creation not supported
at
org.geotools.data.AbstractDataStore.getFeatureWriter(AbstractDataStore.java:207)
at
org.geotools.data.TransactionStateDiff.applyDiff(TransactionStateDiff.java:197)
at
org.geotools.data.TransactionStateDiff.commit(TransactionStateDiff.java:151)
at org.geotools.data.DefaultTransaction.commit(DefaultTransaction.java:182)
at
msi.sig.towngenerator.shapelab.ShapeTools.ajouterSurLayer(ShapeTools.java:193)
at msi.sig.towngenerator.generator.Generator.genereRoutes(Generator.java:386)
at msi.sig.towngenerator.generator.Generator.readCommune(Generator.java:189)
"
I don't really understanf what it means, since I think I've already checked if
the layer was editable or not. Here is the code I run:
"
public static void ajouterSurLayer(Geometry geometry, MapLayer layer)
{
FeatureStore store;
SimpleFeatureType featureType = (SimpleFeatureType)
layer.getFeatureSource().getSchema();
Object[] values = new
Object[featureType.getAttributeCount()];
AttributeDescriptor geomAttribut =
featureType.getGeometryDescriptor();
List<AttributeDescriptor> attributes =
featureType.getAttributeDescriptors();
for (int i = 0, max = attributes.size(); i < max; i++) {
AttributeDescriptor oneAttribut = attributes.get(i);
if (oneAttribut.equals(geomAttribut)) {
values[i] = geometry;
} else {
values[i] = oneAttribut.getDefaultValue();
}
}
SimpleFeature myFeature =
SimpleFeatureBuilder.build(featureType, values, null);
FeatureCollection lstFeatures = FeatureCollections.newCollection();
lstFeatures.add(myFeature);
if (layer.getFeatureSource() instanceof FeatureStore) {
store = (FeatureStore) layer.getFeatureSource();
DefaultTransaction transaction = new DefaultTransaction();
store.setTransaction(transaction);
try {
store.addFeatures(lstFeatures);
transaction.commit(); } catch
(Exception ex) {
ex.printStackTrace();
try {
store.getTransaction().rollback();
} catch (IOException e) {
e.printStackTrace();
}
}finally{
transaction.close();
}
}
}
"
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