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

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 * under the terms of the GNU General Public License version 2 only, as

 * 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

 * 2 along with this work; if not, write to the Free Software Foundation,

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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 before;

    }

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

        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();

                });

                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 {

        try (Recording r = new Recording()) {

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

            r.start();

            Mark event1 = new Mark();

            event1.begin(); // start time

            event1.before = true;

            advanceClock();

            event1.commit();

            Mark event2 = new Mark();

            event2.begin(); // end time

            advanceClock();

            Thread.sleep(100);

            event2.before = false;

            event2.commit();

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

            r.dump(p);

            Instant start = null;

            Instant end = null;

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

                if (e.getBoolean("before")) {

                    start = e.getStartTime();

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

                }

                if (!e.getBoolean("before")) {

                    end = e.getStartTime();

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

                }

            }

            System.out.println("===================");

            AtomicBoolean error = new AtomicBoolean(true);

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

                d.setStartTime(start);

                d.setEndTime(end);

                d.onEvent(e -> {

                    System.out.println(e);

                    System.out.println("Event:");

                    System.out.println(e.getStartTime());

                    System.out.println(e.getEndTime());

                    System.out.println(e.getBoolean("before"));

                    System.out.println();

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

                    if (before) {

                        error.set(false);

                    } else {

                        error.set(true);

                    }

                });

                d.start();

                if (error.get()) {

                    throw new Exception("Found unexpected event!");

                }

            }

        }

    }

    private static void advanceClock() {

        // Wait for some clock movement with

        // java.time clock resolution.

        Instant now = Instant.now();

        while (Instant.now().equals(now)) {

        }

    }

}