sunhaibotb commented on a change in pull request #8731: [FLINK-11878][runtime]
Implement the runtime handling of BoundedOneInput and BoundedMultiInput
URL: https://github.com/apache/flink/pull/8731#discussion_r294130413
##########
File path:
flink-streaming-java/src/main/java/org/apache/flink/streaming/runtime/io/StreamInputProcessor.java
##########
@@ -174,6 +179,18 @@ private void initializeNumRecordsIn() {
}
}
+ private boolean checkFinished() throws Exception {
+ boolean isFinished = input.isFinished();
+ if (isFinished) {
+ if (streamOperator instanceof BoundedOneInput) {
Review comment:
If let `xInputProcessor` see non-head operators, we can use the following
structure. (`OperatorChain` is still invisible to `XInputProcessor`)
```
============== xInputProcessor.java ==============
private boolean checkFinished() throws Exception {
......
// invoke endInput(...) of the head operator
......
// invoke endInput(...) of other operators
streamTask.endNonHeadOperatorInputs()
}
============== xStreamTask.java ==============
public void endNonHeadOperatorInputs throws Exception {
operatorChain.endNonHeadOperatorInputs();
}
============== OperatorChain.java ==============
public void endNonHeadOperatorInputs throws Exception {
......
}
```
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