kymr.github.io.future.LoadTest.java Source code

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Here is the source code for kymr.github.io.future.LoadTest.java

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/**
 * @(#) LoadTest.class $version 2016. 12. 21
 * <p>
 * Copyright 2007 NAVER Corp. All rights Reserved.
 * NAVER PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 */
package kymr.github.io.future;

import lombok.extern.slf4j.Slf4j;
import org.springframework.util.StopWatch;
import org.springframework.web.client.RestTemplate;

import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicInteger;

/**
 * LoadTest 
 */
@Slf4j
public class LoadTest {
    static AtomicInteger counter = new AtomicInteger(0);

    public static void main(String[] args) throws InterruptedException {
        ExecutorService es = Executors.newFixedThreadPool(100);

        RestTemplate rt = new RestTemplate();
        String url = "http://localhost:8080/dr";

        StopWatch main = new StopWatch();
        main.start();

        for (int i = 0; i < 100; i++) {
            es.execute(() -> {
                int idx = counter.addAndGet(1);
                log.info("Thread {}", idx);

                StopWatch sw = new StopWatch();
                sw.start();

                rt.getForObject(url, String.class);

                sw.stop();
                log.info("Elapsed: {} -> {}", idx, sw.getTotalTimeSeconds());
            });
        }

        es.shutdown();
        es.awaitTermination(100, TimeUnit.SECONDS);

        main.stop();
        log.info("Total: {}", main.getTotalTimeSeconds());
    }
}