org.javasimon.examples.AggregationExample Maven / Gradle / Ivy
package org.javasimon.examples;
import org.javasimon.*;
import org.javasimon.utils.SimonUtils;
import java.util.List;
import java.util.Random;
/**
* Example shows how to aggregate results from multiple Stopwatch. This feature is not exactly
* built-in and this example shows how to work around it using the hierarchy.
*
* TODO: Should be supported by API in 3.1 or 3.2 version.
*
* @author Richard "Virgo" Richter
*/
public class AggregationExample {
private static final String STOPWATCH_PARENT = "org.javasimon.examples.aggregation";
private static final int STOPWATCH_COUNT = 4;
private static final int ITERATIONS = 100;
private static final int ITERATION_MS_MAX = 50;
private static Random random = new Random();
/**
* Entry point to the Aggregation Example.
*
* @param args unused
*/
public static void main(String[] args) {
for (int i = 0; i < ITERATIONS; i++) {
Split split = SimonManager.getStopwatch(STOPWATCH_PARENT + Manager.HIERARCHY_DELIMITER + random.nextInt(STOPWATCH_COUNT)).start();
try {
Thread.sleep(random.nextInt(ITERATION_MS_MAX));
} catch (InterruptedException e) {
e.printStackTrace();
}
split.stop();
}
// this is "null" Simon, but you don't care - just take all the children and do the stuff you want
Simon parent = SimonManager.getSimon(STOPWATCH_PARENT);
List children = parent.getChildren();
System.out.println("parent children count = " + children.size());
long totalSum = 0;
for (Simon child : children) {
System.out.println(child);
// do whatever you need to do here...
totalSum += ((Stopwatch) child).getTotal();
}
System.out.println("totalSum = " + SimonUtils.presentNanoTime(totalSum));
}
}