tragicjun commented on a change in pull request #6495: [FLINK-10061] [table]
[kafka] Fix unsupported reconfiguration in KafkaTableSink
URL: https://github.com/apache/flink/pull/6495#discussion_r207876429
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File path:
flink-connectors/flink-connector-kafka-base/src/main/java/org/apache/flink/streaming/connectors/kafka/KafkaTableSink.java
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@@ -166,8 +167,17 @@ public void emitDataStream(DataStream<Row> dataStream) {
@Override
public KafkaTableSink configure(String[] fieldNames,
TypeInformation<?>[] fieldTypes) {
if (schema.isPresent()) {
- // a fixed schema is defined so reconfiguration is not
supported
- throw new
UnsupportedOperationException("Reconfiguration of this sink is not supported.");
+ if (getFieldTypes().length != fieldTypes.length ||
!Arrays.deepEquals(getFieldTypes(), fieldTypes)) {
+ String fixedFieldTypes =
Arrays.deepToString(Arrays.stream(getFieldTypes())
+ .map(s ->
s.getTypeClass().getSimpleName()).toArray());
Review comment:
The if statement uses `Arrays.deepEquals()` which is a clean way of
comparing arrays. The `Arrays.deepToString()` is just used to build string
representation of fieldTypes that are reflected in the exception message.
Perhaps the code employs too many **Arrays**, please review it a bit closer :)
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