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

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

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 * 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).

 *

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package jdk.jfr.api.consumer.streaming;

import java.time.Instant;

import java.util.concurrent.CountDownLatch;

import jdk.jfr.Event;

import jdk.jfr.Recording;

import jdk.jfr.consumer.EventStream;

/**

 * @test

 * @summary Tests that a stream can gracefully handle chunk being removed in the

 *          middle

 * @key jfr

 * @requires vm.hasJFR

 * @library /test/lib

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

 */

public class TestChunkGap {

    static class StartEvent extends Event {

    }

    static class TestGapEvent extends Event {

    }

    static class EndEvent extends Event {

    }

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

        CountDownLatch gap = new CountDownLatch(1);

        try (EventStream s = EventStream.openRepository()) {

            try (Recording r1 = new Recording()) {

                s.setStartTime(Instant.EPOCH);

                s.onEvent(e -> {

                    System.out.println(e);

                    try {

                        gap.await();

                    } catch (InterruptedException e1) {

                        e1.printStackTrace();

                    }

                    if (e.getEventType().getName().equals(EndEvent.class.getName())) {

                        s.close();

                    }

                });

                s.startAsync();

                r1.start();

                StartEvent event1 = new StartEvent();

                event1.commit();

                r1.stop();

                // create chunk that is removed

                try (Recording r2 = new Recording()) {

                    r2.enable(TestGapEvent.class);

                    r2.start();

                    TestGapEvent event2 = new TestGapEvent();

                    event2.commit();

                    r2.stop();

                }

                gap.countDown();

                try (Recording r3 = new Recording()) {

                    r3.enable(EndEvent.class);

                    r3.start();

                    EndEvent event3 = new EndEvent();

                    event3.commit();

                    r3.stop();

                    s.awaitTermination();

                        throw new AssertionError("Expected 2 event, but got " + count);

                    }

                }

            }

        }

    }

}