com.wavefront.sdk.entities.tracing.sampling.CompositeSampler Maven / Gradle / Ivy

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package com.wavefront.sdk.entities.tracing.sampling;

import java.util.List;

/**
 * Sampler that delegates to multiple other samplers for sampling.
 * The sampling decision is true if any of the delegate samplers allow the span.
 *
 * @author Vikram Raman ([email protected])
 */
public class CompositeSampler implements Sampler {

  private final List samplers;

  public CompositeSampler(List samplers) {
    this.samplers = samplers;
  }

  @Override
  public boolean sample(String operationName, long traceId, long duration) {
    if (samplers == null || samplers.isEmpty()) {
      return true;
    }
    for (Sampler sampler : samplers) {
      if (sampler.sample(operationName, traceId, duration)) {
        return true;
      }
    }
    return false;
  }

  @Override
  public boolean isEarly() {
    return false;
  }
}