private InvDatasetImpl getLeafDataset(InvDatasetImpl ds) {
if (ds == null) return null;
System.out.println("getLeafDataset " + ds.getFullName());
List nestedList = ds.getDatasets();
for (int i = 0; i < nestedList.size(); i++) {
InvDatasetImpl nestedDS = (InvDatasetImpl) nestedList.get(i);
if (nestedDS.hasAccess() && !nestedDS.hasNestedDatasets()) {
InvDatasetImpl result =
chooseLeafDataset(nestedList); // this assumes that they are uniform !!
return (result.hasAccess()) ? result : nestedDS;
}
// depth first
InvDatasetImpl leaf = getLeafDataset(nestedDS);
if (leaf != null) return leaf;
}
return null;
}
