@Override
    public void wakeUp() {
    }
Basic class read {@link SourceSplitBase} and return {@link SourceRecord}.
Copy from com.ververica:flink-cdc-base:2.3.0.
inlong-sort/sort-flink/cdc-base/src/main/java/org/apache/inlong/sort/cdc/base/source/reader/IncrementalSourceSplitReader.java