How to use

sampler

method

in

zipkin2.collector.Collector$Builder

@Autowired
ZipkinHttpCollector(
  StorageComponent storage, CollectorSampler sampler, CollectorMetrics metrics) {
 this.metrics = metrics.forTransport("http");
 this.collector =
   Collector.newBuilder(getClass())
     .storage(storage)
     .sampler(sampler)
     .metrics(this.metrics)
     .build();
 this.JSON_V2 = new HttpCollector(SpanBytesDecoder.JSON_V2);
 this.PROTO3 = new HttpCollector(SpanBytesDecoder.PROTO3);
 this.JSON_V1 = new HttpCollector(SpanBytesDecoder.JSON_V1);
 this.THRIFT = new HttpCollector(SpanBytesDecoder.THRIFT);
 this.errorCallback =
   new Receiver.ErrorCallback() {
    @Override
    public void error(HttpServerExchange exchange, IOException e) {
     ZipkinHttpCollector.this.metrics.incrementMessagesDropped();
     ZipkinHttpCollector.error(exchange, e);
    }
   };
}

@Override
public Builder sampler(CollectorSampler sampler) {
 this.delegate.sampler(sampler);
 return this;
}

@Override
public Builder sampler(CollectorSampler sampler) {
 delegate.sampler(sampler);
 return this;
}

@Override
public Builder sampler(CollectorSampler sampler) {
 delegate.sampler(sampler);
 return this;
}

@Override
public Builder sampler(CollectorSampler collectorSampler) {
 delegate.sampler(collectorSampler);
 return this;
}

@Override
public Builder sampler(CollectorSampler sampler) {
 delegate.sampler(sampler);
 return this;
}

@Override
public Builder sampler(CollectorSampler sampler) {
 delegate.sampler(sampler);
 return this;
}