private String[] getChangedFields(JsonValue before, JsonValue after) {
if (null == before && null == after) {
return new String[0];
}
// Default to empty json when they are null.
if (after == null) {
after = json(object());
}
if (before == null) {
before = json(object());
}
// Now find the changed fields.
List<String> changedFields = new ArrayList<>();
for (JsonValue change : JsonPatch.diff(before, after)) {
String diff = change.get(JsonPatch.PATH_PTR).asString();
// Config objects require id only for repo storage and not on the filesystem.
// As far as reporting changes to a config, it is not relevant to be reported as changes.
if (!ROOT_ID_PATH.equals(diff)) {
changedFields.add(diff);
}
}
return changedFields.toArray(new String[changedFields.size()]);
}
