private static SortedMap<String, Object> makeMap(String[] itemNames, Object[] itemValues)
throws OpenDataException {
if (itemNames == null || itemValues == null)
throw new IllegalArgumentException("Null itemNames or itemValues");
if (itemNames.length == 0 || itemValues.length == 0)
throw new IllegalArgumentException("Empty itemNames or itemValues");
if (itemNames.length != itemValues.length) {
throw new IllegalArgumentException(
"Different lengths: itemNames["
+ itemNames.length
+ "], itemValues["
+ itemValues.length
+ "]");
}
SortedMap<String, Object> map = new TreeMap<String, Object>();
for (int i = 0; i < itemNames.length; i++) {
String name = itemNames[i];
if (name == null || name.equals(""))
throw new IllegalArgumentException("Null or empty item name");
if (map.containsKey(name)) throw new OpenDataException("Duplicate item name " + name);
map.put(itemNames[i], itemValues[i]);
}
return map;
}
private static SortedMap<String, Object> makeMap(Map<String, ?> items) {
if (items == null || items.isEmpty())
throw new IllegalArgumentException("Null or empty items map");
SortedMap<String, Object> map = new TreeMap<String, Object>();
for (Object key : items.keySet()) {
if (key == null || key.equals(""))
throw new IllegalArgumentException("Null or empty item name");
if (!(key instanceof String)) {
throw new ArrayStoreException("Item name is not string: " + key);
// This can happen because of erasure. The particular
// exception is a historical artifact - an implementation
// detail that leaked into the API.
}
map.put((String) key, items.get(key));
}
return map;
}