in kafka-connector/src/main/java/com/google/pubsub/kafka/sink/CloudPubSubSinkConnector.java [97:108]
public void ensureValid(String name, Object o) {
String value = (String) o;
if (!value.equals(CloudPubSubSinkConnector.OrderingKeySource.NONE.toString())
&& !value.equals(CloudPubSubSinkConnector.OrderingKeySource.KEY.toString())
&& !value.equals(CloudPubSubSinkConnector.OrderingKeySource.PARTITION.toString())) {
throw new ConfigException(
"Valid values for "
+ CloudPubSubSinkConnector.ORDERING_KEY_SOURCE
+ " are "
+ Arrays.toString(OrderingKeySource.values()));
}
}