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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

 * 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).

 *

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package jdk.jfr.api.consumer.filestream;

import java.nio.file.Path;

import java.nio.file.Paths;

import java.util.concurrent.atomic.AtomicLong;

import jdk.jfr.Event;

import jdk.jfr.Recording;

import jdk.jfr.consumer.EventStream;

/**

 * @test

 * @summary Verifies that it is possible to stream contents from a multichunked file

 * @key jfr

 * @requires vm.hasJFR

 * @library /test/lib

 * @run main/othervm jdk.jfr.api.consumer.filestream.TestMultipleChunk

 */

public class TestMultipleChunk {

    static class SnakeEvent extends Event {

        int id;

    }

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

        Path path = Paths.get("./using-file.jfr");

        try (Recording r1 = new Recording()) {

            r1.start();

            emitSnakeEvent(1);

            emitSnakeEvent(2);

            emitSnakeEvent(3);

            // Force a chunk rotation

            try (Recording r2 = new Recording()) {

                r2.start();

                emitSnakeEvent(4);

                emitSnakeEvent(5);

                emitSnakeEvent(6);

                r2.stop();

            }

            r1.stop();

            r1.dump(path);

            AtomicLong counter = new AtomicLong();

            try (EventStream es = EventStream.openFile(path)) {

                es.onEvent(e -> {

                    counter.incrementAndGet();

                });

                es.start();

                if (counter.get() != 6) {

                    throw new Exception("Expected 6 event, but got " + counter.get());

                }

            }

        }

    }

    static void emitSnakeEvent(int id) {

        SnakeEvent e = new SnakeEvent();

        e.id = id;

        e.commit();

    }

}