AttributeFilteringSampler implements Sampler
Read onlyYes
FinalYes
Sees start-time attributes only; end-state filtering is AttributeFilteringSpanProcessor's job.
Interfaces
Methods
- __construct() : mixed
- __toString() : string
- Get a string representation of this sampler for debugging.
- shouldSample() : SamplingResult
- Determine if a span should be sampled.
Methods
__construct()
public
__construct(AttributeFilter $filter[, Sampler $delegate = new AlwaysOnSampler() ]) : mixed
Parameters
- $filter : AttributeFilter
- $delegate : Sampler = new AlwaysOnSampler()
__toString()
Get a string representation of this sampler for debugging.
public
__toString() : string
Examples:
- "AlwaysOnSampler"
- "TraceIdRatioBasedSampler{0.001}"
- "ParentBased{root=AlwaysOnSampler}"
Return values
stringshouldSample()
Determine if a span should be sampled.
public
shouldSample(Context $parentContext, Span $span) : SamplingResult
Parameters
- $parentContext : Context
-
The parent context of the span to be created
- $span : Span
-
The span to evaluate for sampling
Return values
SamplingResult —The sampling decision