in flink-connector-mongodb/src/main/java/org/apache/flink/connector/mongodb/source/reader/MongoSourceReader.java [72:78]
protected void onSplitFinished(Map<String, MongoSourceSplitState> finishedSplitIds) {
for (MongoSourceSplitState splitState : finishedSplitIds.values()) {
MongoSourceSplit sourceSplit = splitState.toMongoSourceSplit();
LOG.info("Split {} is finished.", sourceSplit.splitId());
}
context.sendSplitRequest();
}