RevObject filterType = database.getIfPresent(filterFeatureTypeId);
checkArgument(filterType instanceof RevFeatureType,
"Provided filter feature type is does not exist");
}
final SimpleFeatureStore targetStore = getTargetStore();
final String refspec = resolveRefSpec();
final String treePath = refspec.substring(refspec.indexOf(':') + 1);
final RevTree rootTree = resolveRootTree(refspec);
final NodeRef typeTreeRef = resolTypeTreeRef(refspec, treePath, rootTree);
final ObjectId defaultMetadataId = typeTreeRef.getMetadataId();
final RevTree typeTree = database.getTree(typeTreeRef.objectId());
final ProgressListener progressListener = getProgressListener();
progressListener.started();
progressListener.setDescription("Exporting from " + path + " to "
+ targetStore.getName().getLocalPart() + "... ");
FeatureCollection<SimpleFeatureType, SimpleFeature> asFeatureCollection = new BaseFeatureCollection<SimpleFeatureType, SimpleFeature>() {
@Override
public FeatureIterator<SimpleFeature> features() {
final Iterator<SimpleFeature> plainFeatures = getFeatures(typeTree, database,
defaultMetadataId, progressListener);
Iterator<SimpleFeature> adaptedFeatures = adaptToArguments(plainFeatures,
defaultMetadataId);
Iterator<Optional<Feature>> transformed = Iterators.transform(adaptedFeatures,
ExportOp.this.function);
Iterator<SimpleFeature> filtered = Iterators.filter(Iterators.transform(
transformed, new Function<Optional<Feature>, SimpleFeature>() {
@Override
public SimpleFeature apply(Optional<Feature> input) {
return (SimpleFeature) (input.isPresent() ? input.get() : null);
}
}), Predicates.notNull());
return new DelegateFeatureIterator<SimpleFeature>(filtered);
}
};
// add the feature collection to the feature store
final Transaction transaction;
if (transactional) {
transaction = new DefaultTransaction("create");
} else {
transaction = Transaction.AUTO_COMMIT;
}
try {
targetStore.setTransaction(transaction);
try {
targetStore.addFeatures(asFeatureCollection);
transaction.commit();
} catch (final Exception e) {
if (transactional) {
transaction.rollback();
}