NewFixedRateExtractor returns an APM event extractor that decides whether to extract APM events from spans following the provided extraction rates for a span's (service name, operation name) pair.

NewLegacyExtractor returns an APM event extractor that decides whether to extract APM events from spans following the specified extraction rates for a span's service.

NewMetricBasedExtractor returns an APM event extractor that decides whether to extract APM events from spans based on the value of the event extraction rate metric set on those span.

NewNoopExtractor returns a new APM event extractor that does not extract any events.

NewProcessor returns a new instance of Processor configured with the provided extractors and max eps limitation.

Processor is responsible for all the logic surrounding extraction and sampling of APM events from processed traces.

Extractor extracts APM events from matching spans.