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

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 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

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 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

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package jdk.jfr.api.consumer.streaming;

import java.util.concurrent.CountDownLatch;

import jdk.jfr.Event;

import jdk.jfr.FlightRecorder;

import jdk.jfr.Period;

import jdk.jfr.consumer.RecordingStream;

/**

 * @test

 * @summary Verifies that it is possible to stream contents of ongoing

 *          recordings

 * @key jfr

 * @requires vm.hasJFR

 * @library /test/lib

 * @run main/othervm -Xlog:jfr+system+streaming=trace

 *      jdk.jfr.api.consumer.streaming.TestStartSingleChunk

 */

public class TestStartSingleChunk {

    @Period("500 ms")

    static class ElkEvent extends Event {

    }

    static class FrogEvent extends Event {

    }

    static class LionEvent extends Event {

    }

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

        CountDownLatch frogLatch = new CountDownLatch(1);

        CountDownLatch lionLatch = new CountDownLatch(1);

        CountDownLatch elkLatch = new CountDownLatch(3);

        FlightRecorder.addPeriodicEvent(ElkEvent.class, () -> {

            ElkEvent ee = new ElkEvent();

            ee.commit();

        });

        try (RecordingStream s = new RecordingStream()) {

            s.onEvent(ElkEvent.class.getName(), e -> {

                System.out.println("Found elk!");

                elkLatch.countDown();

            });

            s.onEvent(LionEvent.class.getName(), e -> {

                System.out.println("Found lion!");

                lionLatch.countDown();

            });

            s.onEvent(FrogEvent.class.getName(), e -> {

                System.out.println("Found frog!");

                frogLatch.countDown();

            });

            s.startAsync();

            FrogEvent fe = new FrogEvent();

            fe.commit();

            LionEvent le = new LionEvent();

            le.commit();

            frogLatch.await();

            lionLatch.await();

            elkLatch.await();

        }

    }

}