@Nullable String requesterHostname);` `default void handleSourceEvent(int subtaskId, SourceEvent sourceEvent) {` `}` `StateT snapshotState() throws Exception;` `default void notifyChe... splitList;` `try {` `SimpleDivideSplitConstructor constructor = new SimpleDivideSplitConstructor(jobConf);` `splitList = constructor.construct();` `} catch (IOException e) {` `ClickhouseSo...