in src/main/java/org/apache/sling/distribution/journal/kafka/KafkaClientProvider.java [269:278]
long getOffset(KafkaConsumer<String, String> consumer, TopicPartition topicPartition) {
Collection<TopicPartition> partitions = singleton(topicPartition);
if (reset == Reset.earliest) {
return consumer.beginningOffsets(partitions).get(topicPartition) + offset;
} else if (reset == Reset.latest) {
return consumer.endOffsets(partitions).get(topicPartition) + offset;
} else {
return offset;
}
}