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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

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * 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.Name;

import jdk.jfr.Period;

import jdk.jfr.Recording;

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.TestStartMultiChunk

 */

public class TestStartMultiChunk {

    @Period("10 s")

    @Name("Zebra")

    static class ZebraEvent extends Event {

    }

    @Name("Cat")

    static class CatEvent extends Event {

    }

    @Name("Dog")

    static class DogEvent extends Event {

    }

    @Name("Mouse")

    static class MouseEvent extends Event {

    }

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

        CountDownLatch dogLatch = new CountDownLatch(1);

        CountDownLatch catLatch = new CountDownLatch(1);

        CountDownLatch mouseLatch = new CountDownLatch(1);

        CountDownLatch zebraLatch = new CountDownLatch(3);

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

            ZebraEvent ze = new ZebraEvent();

            ze.commit();

            System.out.println("Zebra emitted");

        });

        try (RecordingStream s = new RecordingStream()) {

            s.onEvent("Cat", e -> {

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

                catLatch.countDown();

            });

            s.onEvent("Dog", e -> {

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

                dogLatch.countDown();

            });

            s.onEvent("Zebra", e -> {

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

                zebraLatch.countDown();

            });

            s.onEvent("Mouse", e -> {

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

                mouseLatch.countDown();

            });

            s.startAsync();

            System.out.println("Stream recoding started");

            try (Recording r1 = new Recording()) {

                r1.start();

                System.out.println("r1.start()");

                MouseEvent me = new MouseEvent();

                me.commit();

                System.out.println("Mouse emitted");

                mouseLatch.await();

                try (Recording r2 = new Recording()) { // force chunk rotation

                                                       // in stream

                    r2.start();

                    System.out.println("r2.start()");

                    DogEvent de = new DogEvent();

                    de.commit();

                    System.out.println("Dog emitted");

                    dogLatch.await();

                    CatEvent ce = new CatEvent();

                    ce.commit();

                    System.out.println("Cat emitted");

                    catLatch.await();

                    zebraLatch.await();

                }

            }

        }

    }

}