AbstractInternalProfiler.java

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package org.openjdk.jmh.it.profilers.order;

import org.openjdk.jmh.infra.BenchmarkParams;
import org.openjdk.jmh.infra.IterationParams;
import org.openjdk.jmh.profile.InternalProfiler;
import org.openjdk.jmh.results.IterationResult;
import org.openjdk.jmh.results.Result;

import java.util.Arrays;
import java.util.Collection;
import java.util.concurrent.TimeUnit;

public abstract class AbstractInternalProfiler implements InternalProfiler {

    private final String pfx;
    protected long start, stop;

    protected AbstractInternalProfiler(String pfx) {
        this.pfx = pfx;
    }

    @Override
    public void beforeIteration(BenchmarkParams benchmarkParams, IterationParams iterationParams) {
        start = System.nanoTime();
        try {
            TimeUnit.MILLISECONDS.sleep(100);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
    }

    @Override
    public Collection<? extends Result> afterIteration(BenchmarkParams benchmarkParams, IterationParams iterationParams, IterationResult result) {
        stop = System.nanoTime();
        try {
            TimeUnit.MILLISECONDS.sleep(100);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        return Arrays.asList(
                new ProfilerTimestamp(pfx + "start", start),
                new ProfilerTimestamp(pfx + "stop", stop)
        );
    }

    @Override
    public String getDescription() {
        return "Integration Test Internal Profiler";
    }

}