Add arbitrary-timestamp ID generation to DistributedUniqueTimeProvider#720
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Add uniqueIdForNanos() and uniqueIdForMicros() methods that generate unique, monotonically increasing IDs for a given timestamp rather than the current wall-clock time. Useful for producing identifiers for events that occurred at a known time.
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Summary
uniqueIdForNanos(long)anduniqueIdForMicros(long)methods that generate unique IDs based on a caller-supplied timestamp instead of the current wall-clock time — useful for event replay, back-filling, or importing historical data.Test plan
mvn test -Dtest=DistributedUniqueTimeProviderTest)uniqueIdForNanosperformance under contention