PatrickRen commented on code in PR #20370:
URL: https://github.com/apache/flink/pull/20370#discussion_r1031176628
##########
flink-connectors/flink-connector-kafka/src/main/java/org/apache/flink/connector/kafka/source/enumerator/KafkaSourceEnumerator.java:
##########
@@ -612,6 +612,10 @@ public Map<TopicPartition, OffsetAndTimestamp>
offsetsForTimes(
OffsetSpec.forTimestamp(
entry.getValue()))))
.entrySet().stream()
+ // OffsetAndTimestamp cannot be initialized with a
negative offset, which is
+ // possible if the timestamp does not correspond to an
offset and the topic
+ // partition is empty
+ .filter(entry -> entry.getValue().offset() != -1)
Review Comment:
nit: What about `entry.getValue().offset() >= 0`?
##########
flink-connectors/flink-connector-kafka/src/test/java/org/apache/flink/connector/kafka/source/enumerator/initializer/OffsetsInitializerTest.java:
##########
@@ -107,7 +111,19 @@ public void testTimestampOffsetsInitializer() {
long expectedOffset = tp.partition() > 2 ? tp.partition()
: 3L;
assertThat((long) offset).isEqualTo(expectedOffset);
});
-
assertThat(initializer.getAutoOffsetResetStrategy()).isEqualTo(OffsetResetStrategy.NONE);
+
assertThat(initializer.getAutoOffsetResetStrategy()).isEqualTo(OffsetResetStrategy.LATEST);
+ }
+
+ @Test
+ public void testTimestampOffsetsInitializerForEmptyPartitions() {
+ OffsetsInitializer initializer = OffsetsInitializer.timestamp(2001);
+ List<TopicPartition> partitions =
KafkaSourceTestEnv.getPartitionsForTopic(EMPTY_TOPIC3);
+ Map<TopicPartition, Long> expectedOffsets =
+ partitions.stream().collect(Collectors.toMap(tp -> tp, tp ->
0L));
+ assertThat(initializer.getPartitionOffsets(partitions, retriever))
+ .as("offsets are equal equal to 0 since the timestamp is out
of range.")
Review Comment:
typo: "are equal ~~equal~~ to"
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