jihoonson commented on a change in pull request #10383:
URL: https://github.com/apache/druid/pull/10383#discussion_r502078014
##########
File path:
core/src/main/java/org/apache/druid/data/input/IntermediateRowParsingReader.java
##########
@@ -96,23 +99,35 @@ public void close() throws IOException
public CloseableIterator<InputRowListPlusRawValues> sample() throws
IOException
{
return intermediateRowIterator().map(row -> {
- final Map<String, Object> rawColumns;
+
+ final List<Map<String, Object>> rawColumnsList;
try {
- rawColumns = toMap(row);
+ rawColumnsList = toMap(row);
}
catch (Exception e) {
- return InputRowListPlusRawValues.of(null, new ParseException(e,
"Unable to parse row [%s] into JSON", row));
+ return Collections.singletonList(InputRowListPlusRawValues.of(null,
+ new
ParseException(e, "Unable to parse row [%s] into JSON", row)));
}
+
+ List<InputRow> rows;
try {
- return InputRowListPlusRawValues.of(parseInputRows(row), rawColumns);
+ rows = parseInputRows(row);
}
catch (ParseException e) {
- return InputRowListPlusRawValues.of(rawColumns, e);
+ return
Collections.singletonList(InputRowListPlusRawValues.of(rawColumnsList.isEmpty()
? null : rawColumnsList.get(0), e));
Review comment:
> I checked the code again and find that there's no need to return raw
column object when exception occurs. Because `InputSourceSample` re-throws
exception once `InputRowListPlusRawValues.getParseException` returns exception.
[Actually, there is a clause catching
`ParseException`](https://github.com/apache/druid/blob/master/indexing-service/src/main/java/org/apache/druid/indexing/overlord/sampler/InputSourceSampler.java#L142-L146)
in the sampler (this is a bad pattern by the way. We should refactor it at
some point). In this case, the `rawColumns` is returned to show the raw data in
the UI. I think the entire `rawColumnsList` should be returned to keep the
current behaviour.
----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
For queries about this service, please contact Infrastructure at:
[email protected]
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
