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package me.lucko.spark.profiler;
import com.google.common.base.Preconditions;
import java.util.Timer;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.TimeUnit;
/**
* Builds {@link Sampler} instances.
*/
public class SamplerBuilder {
private int samplingInterval = 10;
private long timeout = -1;
private ThreadDumper threadDumper = new ThreadDumper.All();
public SamplerBuilder() {
}
public SamplerBuilder samplingInterval(int samplingInterval) {
this.samplingInterval = samplingInterval;
return this;
}
public SamplerBuilder completeAfter(long timeout, TimeUnit unit) {
Preconditions.checkArgument(timeout > 0, "time > 0");
this.timeout = System.currentTimeMillis() + unit.toMillis(timeout);
return this;
}
public SamplerBuilder threadDumper(ThreadDumper threadDumper) {
this.threadDumper = threadDumper;
return this;
}
public Sampler start(Timer samplingThread, ExecutorService workerPool) {
Sampler sampler = new Sampler(this.samplingInterval, this.threadDumper, this.timeout);
sampler.start(samplingThread, workerPool);
return sampler;
}
}
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