private void changeSubdocumentValue(
Object document, String key, Object newValue, AtomicReference<Integer> matchPos)
throws MongoServerException {
int dotPos = key.indexOf('.');
if (dotPos > 0) {
String mainKey = key.substring(0, dotPos);
String subKey = getSubkey(key, dotPos, matchPos);
Object subObject = Utils.getListSafe(document, mainKey);
if (subObject instanceof BSONObject || subObject instanceof List<?>) {
changeSubdocumentValue(subObject, subKey, newValue, matchPos);
} else {
BSONObject obj = new BasicBSONObject();
changeSubdocumentValue(obj, subKey, newValue, matchPos);
Utils.setListSafe(document, mainKey, obj);
}
} else {
Utils.setListSafe(document, key, newValue);
}
}
