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Example 1 with UNDEFINED_EPOCH

use of org.apache.kafka.common.requests.OffsetsForLeaderEpochResponse.UNDEFINED_EPOCH in project kafka by apache.

the class FetcherTest method testOffsetValidationWithGivenEpochOffset.

private void testOffsetValidationWithGivenEpochOffset(int leaderEpoch, long endOffset, OffsetResetStrategy offsetResetStrategy) {
    buildFetcher(offsetResetStrategy);
    assignFromUser(singleton(tp0));
    Map<String, Integer> partitionCounts = new HashMap<>();
    partitionCounts.put(tp0.topic(), 4);
    final int epochOne = 1;
    final long initialOffset = 5;
    metadata.updateWithCurrentRequestVersion(RequestTestUtils.metadataUpdateWithIds("dummy", 1, Collections.emptyMap(), partitionCounts, tp -> epochOne, topicIds), false, 0L);
    // Offset validation requires OffsetForLeaderEpoch request v3 or higher
    Node node = metadata.fetch().nodes().get(0);
    apiVersions.update(node.idString(), NodeApiVersions.create());
    Metadata.LeaderAndEpoch leaderAndEpoch = new Metadata.LeaderAndEpoch(metadata.currentLeader(tp0).leader, Optional.of(epochOne));
    subscriptions.seekUnvalidated(tp0, new SubscriptionState.FetchPosition(initialOffset, Optional.of(epochOne), leaderAndEpoch));
    fetcher.validateOffsetsIfNeeded();
    consumerClient.poll(time.timer(Duration.ZERO));
    assertTrue(subscriptions.awaitingValidation(tp0));
    assertTrue(client.hasInFlightRequests());
    client.respond(offsetsForLeaderEpochRequestMatcher(tp0, epochOne, epochOne), prepareOffsetsForLeaderEpochResponse(tp0, Errors.NONE, leaderEpoch, endOffset));
    consumerClient.poll(time.timer(Duration.ZERO));
    if (offsetResetStrategy == OffsetResetStrategy.NONE) {
        LogTruncationException thrown = assertThrows(LogTruncationException.class, () -> fetcher.validateOffsetsIfNeeded());
        assertEquals(singletonMap(tp0, initialOffset), thrown.offsetOutOfRangePartitions());
        if (endOffset == UNDEFINED_EPOCH_OFFSET || leaderEpoch == UNDEFINED_EPOCH) {
            assertEquals(Collections.emptyMap(), thrown.divergentOffsets());
        } else {
            OffsetAndMetadata expectedDivergentOffset = new OffsetAndMetadata(endOffset, Optional.of(leaderEpoch), "");
            assertEquals(singletonMap(tp0, expectedDivergentOffset), thrown.divergentOffsets());
        }
        assertTrue(subscriptions.awaitingValidation(tp0));
    } else {
        fetcher.validateOffsetsIfNeeded();
        assertFalse(subscriptions.awaitingValidation(tp0));
    }
}
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