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;
    }
}