private void verifyState() {
if (null == subscriptionId || subscriptionId.length() < 1) {
throw new IllegalArgumentException("subscriptionId is required");
}
if (null == owner || owner.getId().length() < 1) {
throw new IllegalArgumentException("owner is required");
}
}
public UpdatedResource(JSONObject json) {
try {
this.subscriptionId = json.getString("subscriptionId");
this.owner = FitbitResourceOwner.fromJson(json);
if (json.has("collectionType")) {
this.collectionType = APICollectionType.valueOf(json.getString("collectionType"));
}
if (json.has("date")) {
this.date = APIUtil.parseDate(json.getString("date"));
}
} catch (JSONException e) {
throw new IllegalArgumentException(
"Given JSON object does not contain all required elements.", e);
}
verifyState();
}