// more complex helper for finding duplicates in arbitrary sets of EObjects
// (the EObject names must be determined by the caller)
public static int checkDuplicates(
ValidationMessageReporter reporter,
NameList items,
EStructuralFeature feature,
String description) {
int nErrors = 0;
String msg = "Duplicate " + description + ' ';
// for each name store the element of its first occurrence
Map<String, EObject> firstOccurrenceOfName = new HashMap<String, EObject>();
Set<String> duplicateNames = new HashSet<String>();
// iterate (once!) over all types in the model
for (Entry p : items.iterable()) {
// if the name already occurred we have a duplicate name and hence an error
if (firstOccurrenceOfName.get(p.name) != null) {
duplicateNames.add(p.name);
reporter.reportError(msg + "'" + p.name + "'", p.object, feature);
nErrors++;
} else {
firstOccurrenceOfName.put(p.name, p.object);
}
}
// now create the error for the first occurrence of a duplicate name
for (String s : duplicateNames) {
reporter.reportError(msg + "'" + s + "'", firstOccurrenceOfName.get(s), feature);
nErrors++;
}
return nErrors;
}
// simple helper for finding duplicates in ELists
public static <T extends EObject> int checkDuplicates(
ValidationMessageReporter reporter,
Iterable<T> items,
EStructuralFeature feature,
String description) {
int nErrors = 0;
String msg = "Name conflict for " + description + ' ';
// for each name store the element of its first occurrence
Map<String, EObject> firstOccurrenceOfName = new HashMap<String, EObject>();
Set<String> duplicateNames = new HashSet<String>();
// iterate (once!) over all types in the model
for (EObject i : items) {
String name = FrancaNameProvider.getName(i);
// if the name already occurred we have a duplicate name and hence an error
if (firstOccurrenceOfName.get(name) != null) {
duplicateNames.add(name);
reporter.reportError(msg + "'" + name + "'", i, feature);
nErrors++;
} else {
firstOccurrenceOfName.put(name, i);
}
}
// now create the error for the first occurrence of a duplicate name
for (String s : duplicateNames) {
reporter.reportError(msg + "'" + s + "'", firstOccurrenceOfName.get(s), feature);
nErrors++;
}
return nErrors;
}
