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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).

 *

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package jdk.jfr.api.consumer.recordingstream;

import java.io.IOException;

import java.nio.file.Path;

import java.nio.file.Paths;

import java.time.Duration;

import java.time.Instant;

import java.util.concurrent.CountDownLatch;

import java.util.concurrent.atomic.AtomicBoolean;

import java.util.concurrent.atomic.AtomicInteger;

import jdk.jfr.Event;

import jdk.jfr.Name;

import jdk.jfr.Recording;

import jdk.jfr.StackTrace;

import jdk.jfr.consumer.EventStream;

import jdk.jfr.consumer.RecordedEvent;

import jdk.jfr.consumer.RecordingFile;

import jdk.jfr.consumer.RecordingStream;

/**

 * @test

 * @summary Tests EventStream::setEndTime

 * @key jfr

 * @requires vm.hasJFR

 * @library /test/lib

 * @run main/othervm jdk.jfr.api.consumer.recordingstream.TestSetEndTime

 */

public final class TestSetEndTime {

    @Name("Mark")

    @StackTrace(false)

    public final static class Mark extends Event {

        public boolean include;

        public int id;

    }

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

        testEventStream();

        testRecordingStream();

    }

    private static void testRecordingStream() throws Exception {

        while (true) {

            CountDownLatch closed = new CountDownLatch(1);

            AtomicInteger count = new AtomicInteger();

            try (RecordingStream rs = new RecordingStream()) {

                rs.setFlushInterval(Duration.ofSeconds(1));

                rs.onEvent(e -> {

                    count.incrementAndGet();

                });

                // when end is reached stream is closed

                rs.onClose(() -> {

                    closed.countDown();

                });

                Instant endTime = Instant.now().plus(Duration.ofMillis(100));

                System.out.println("Setting end time: " + endTime);

                rs.setEndTime(endTime);

                rs.startAsync();

                for (int i = 0; i < 50; i++) {

                    Mark m = new Mark();

                    m.commit();

                    Thread.sleep(10);

                }

                closed.await();

                System.out.println("Found events: " + count.get());

                if (count.get() < 50) {

                    return;

                }

                System.out.println("Found 50 events. Retrying");

                System.out.println();

            }

        }

    }

    static void testEventStream() throws InterruptedException, IOException, Exception {

        while (true) {

            try (Recording r = new Recording()) {

                r.start();

                Mark event1 = new Mark();

                event1.id = 1;

                event1.include = false;

                event1.commit(); // start time

                nap();

                Mark event2 = new Mark();

                event2.id = 2;

                event2.include = true;

                event2.commit();

                nap();

                Mark event3 = new Mark();

                event3.id = 3;

                event3.include = false;

                event3.commit(); // end time

                Path p = Paths.get("recording.jfr");

                r.dump(p);

                Instant start = null;

                Instant end = null;

                System.out.println("Find start and end time as instants:");

                for (RecordedEvent e : RecordingFile.readAllEvents(p)) {

                    if (e.getInt("id") == 1) {

                        start = e.getEndTime();

                        System.out.println("Start  : " + start);

                    }

                    if (e.getInt("id") == 2) {

                        Instant middle = e.getEndTime();

                        System.out.println("Middle : " + middle);

                    }

                    if (e.getInt("id") == 3) {

                        end = e.getEndTime();

                        System.out.println("End    : " + end);

                    }

                }

                System.out.println();

                System.out.println("Opening stream between " + start + " and " + end);

                AtomicBoolean success = new AtomicBoolean(false);

                AtomicInteger eventsCount = new AtomicInteger();

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

                    d.setStartTime(start.plusNanos(1));

                    // Stream should close when end is reached

                    d.setEndTime(end.minusNanos(1));

                    d.onEvent(e -> {

                        eventsCount.incrementAndGet();

                        boolean include = e.getBoolean("include");

                        System.out.println("Event " + e.getEndTime() + " include=" + include);

                        if (include) {

                            success.set(true);

                        }

                    });

                    d.start();

                    if (eventsCount.get() == 1 && success.get()) {

                        return;

                    }

                }

            }

        }

    }

    private static void nap() throws InterruptedException {

        // Ensure we advance at least 1 ns with fast time

        Thread.sleep(1);

    }

}