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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

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 * accompanied this code).

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package jdk.jfr.api.consumer.streaming;

import java.util.Random;

import java.util.concurrent.CountDownLatch;

import java.util.concurrent.atomic.AtomicInteger;

import jdk.jfr.Event;

import jdk.jfr.consumer.RecordingStream;

/**

 * @test

 * @summary Test that it is possible to iterate over chunk with normal events

 * @key jfr

 * @requires vm.hasJFR

 * @library /test/lib

 * @run main/othervm jdk.jfr.api.consumer.streaming.TestFilledChunks

 */

public class TestFilledChunks {

    static class FillEvent extends Event {

        String message;

        int value;

        int id;

    }

    static class EndEvent extends Event {

    }

    // Will generate about 100 MB of data, or 8-9 chunks

    private static final int EVENT_COUNT = 5_000_000;

    public static void main(String... args) throws Exception {

        CountDownLatch end = new CountDownLatch(1);

        AtomicInteger idCounter = new AtomicInteger();

        try (RecordingStream es = new RecordingStream()) {

            es.onEvent(EndEvent.class.getName(), e -> end.countDown());

            es.onEvent(FillEvent.class.getName(), e -> {

                idCounter.incrementAndGet();

//                if (id != expected) {

//                    throw new Error("Expected id " + expected + ", but got " + id);

//                }

            });

            es.startAsync();

            long seed = System.currentTimeMillis();

            System.out.println("Random seed: " + seed);

            Random r = new Random(seed);

            for (int i = 1; i < EVENT_COUNT; i++) {

                FillEvent f = new FillEvent();

                f.message = i %2 == 0 ? "ko" : "kak";

                f.value = r.nextInt(10000);

                f.id = i;

                f.commit();

                if (i % 1_000_000 == 0) {

                    System.out.println("Emitted " + i + " events");

                }

            }

            System.out.println("Awaiting end event");

            Thread.sleep(1_000);

            for (int i = 1; i < EVENT_COUNT; i++) {

                EndEvent e = new EndEvent();

                e.commit();

            }

            end.await();

        }

    }

}