walterddr commented on code in PR #9006:
URL: https://github.com/apache/pinot/pull/9006#discussion_r920336334
##########
pinot-common/src/main/java/org/apache/pinot/common/lineage/SegmentLineage.java:
##########
@@ -146,4 +150,19 @@ public ZNRecord toZNRecord() {
}
return znRecord;
}
+
+ /**
+ * Returns a json representation of the segment lineage.
+ * Segment lineage entries are sorted in chronological order by default.
+ */
+ public ObjectNode toJsonObject() {
+ ObjectNode jsonObject = JsonUtils.newObjectNode();
+ jsonObject.put("tableNameWithType", _tableNameWithType);
+ LinkedHashMap<String, LineageEntry> sortedLineageEntries = new
LinkedHashMap<>();
+ _lineageEntries.entrySet().stream()
+
.sorted(Map.Entry.comparingByValue(Comparator.comparingLong(LineageEntry::getTimestamp)))
+ .forEachOrdered(x -> sortedLineageEntries.put(x.getKey(),
x.getValue()));
Review Comment:
IMO sorting is not necessary. at least we shouldn't do this in the
toJsonObject path. what do you think we add the timestamp processing later?
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