import { Context } from '../context/types'; import { SpanAttributes } from './attributes'; import { Link } from './link'; import { SamplingResult } from './SamplingResult'; import { SpanKind } from './span_kind'; /** * @deprecated use the one declared in @opentelemetry/sdk-trace-base instead. * This interface represent a sampler. Sampling is a mechanism to control the * noise and overhead introduced by OpenTelemetry by reducing the number of * samples of traces collected and sent to the backend. */ export interface Sampler { /** * Checks whether span needs to be created and tracked. * * @param context Parent Context which may contain a span. * @param traceId of the span to be created. It can be different from the * traceId in the {@link SpanContext}. Typically in situations when the * span to be created starts a new trace. * @param spanName of the span to be created. * @param spanKind of the span to be created. * @param attributes Initial set of SpanAttributes for the Span being constructed. * @param links Collection of links that will be associated with the Span to * be created. Typically useful for batch operations. * @returns a {@link SamplingResult}. */ shouldSample(context: Context, traceId: string, spanName: string, spanKind: SpanKind, attributes: SpanAttributes, links: Link[]): SamplingResult; /** Returns the sampler name or short description with the configuration. */ toString(): string; } //# sourceMappingURL=Sampler.d.ts.map