/**
* Assumes the input map always has String keys and the values are of types: String, Version,
* Long, Double or List of the previous types. Lists are copied and Version objects are converted
* to String objects.
*/
private static Map<String, Object> newAttributesMapDTO(Map<String, Object> map) {
Map<String, Object> dto = new HashMap<String, Object>(map);
/* Lists are copied and Version objects are converted to String objects. */
for (Map.Entry<String, Object> entry : dto.entrySet()) {
Object value = entry.getValue();
if (value instanceof Version) {
entry.setValue(String.valueOf(value));
continue;
}
if (value instanceof List) {
List<Object> newList = new ArrayList<Object>((List<?>) value);
for (ListIterator<Object> iter = newList.listIterator(); iter.hasNext(); ) {
Object element = iter.next();
if (element instanceof Version) {
iter.set(String.valueOf(element));
}
}
entry.setValue(newList);
continue;
}
}
return dto;
}
