/**
* This flattens a list.
*
* @param o object that might be a list
* @param list list to add o to or all of o's items to.
* @return an object or a list
*/
public static Object unifyListOrArray(Object o, List list) {
if (o == null) {
return null;
}
boolean isArray = o.getClass().isArray();
if (list == null && !isArray && !(o instanceof Iterable)) {
return o;
}
if (list == null) {
list = new LinkedList();
}
if (isArray) {
int length = Array.getLength(o);
for (int index = 0; index < length; index++) {
Object o1 = Array.get(o, index);
if (o1 instanceof Iterable || o.getClass().isArray()) {
unifyListOrArray(o1, list);
} else {
list.add(o1);
}
}
} else if (o instanceof Collection) {
Collection i = ((Collection) o);
for (Object item : i) {
if (item instanceof Iterable || o.getClass().isArray()) {
unifyListOrArray(item, list);
} else {
list.add(item);
}
}
} else {
list.add(o);
}
return list;
}
/**
* This flattens a list.
*
* @param o object that might be a list
* @param list list to add o to or all of o's items to.
* @return an object or a list
*/
public static Object unifyList(Object o, List list) {
if (o == null) {
return null;
}
if (list == null) {
list = new ArrayList();
}
if (o instanceof Iterable) {
Iterable i = ((Iterable) o);
for (Object item : i) {
unifyListOrArray(item, list);
}
} else {
list.add(o);
}
return list;
}