in src/main/java/com/aliyun/odps/kafka/connect/SinkStatusContext.java [36:40]
public boolean containsOffset(long offset) {
// 判断offset区间是否包含某个record的offset
Long floorKey = offsetIntervalSet.floorKey(offset);
return (floorKey != null && offset >= floorKey && offset <= offsetIntervalSet.get(floorKey));
}