/*

 * Copyright (c) 2013, 2018, Oracle and/or its affiliates. All rights reserved.

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

 *

 * This code is free software; you can redistribute it and/or modify it

 * 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,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

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package jdk.jfr.event.runtime;

import java.util.List;

import jdk.jfr.Recording;

import jdk.jfr.consumer.RecordedClass;

import jdk.jfr.consumer.RecordedEvent;

import jdk.jfr.consumer.RecordedThread;

import jdk.test.lib.Asserts;

import jdk.test.lib.jfr.EventNames;

import jdk.test.lib.jfr.Events;

/*

 * @test

 * @key jfr

 * @library /test/lib

 * @run main/othervm jdk.jfr.event.runtime.TestJavaMonitorWaitTimeOut

 */

public class TestJavaMonitorWaitTimeOut {

    static final class Lock {

    }

    private static final String THREAD_NAME = "Notifier";

    static class Notifierhread extends Thread {

        private final Object lock;

        Notifierhread(Object lock) {

            super(THREAD_NAME);

            this.lock = lock;

        }

        public void run() {

            synchronized (lock) {

                lock.notify();

            }

        }

    }

    public static void main(String[] args) throws Throwable {

        try (Recording recording = new Recording()) {

            recording.enable(EventNames.JavaMonitorWait).withoutThreshold().withoutStackTrace();

            recording.start();

            Lock lock = new Lock();

            synchronized (lock) {

                // event without notifier, should be null

                lock.wait(10);

            }

            Notifierhread s = new Notifierhread(lock);

            synchronized (lock) {

                s.start();

                // event with a notifier

                lock.wait(1_000_000);

                s.join();

            }

            synchronized (lock) {

                // event without a notifier, should be null

                lock.wait(11);

            }

            recording.stop();

            List<RecordedEvent> events = Events.fromRecording(recording);

            for (RecordedEvent e : events) {

                if (isWaitEvent(e)) {

                    System.out.println(e);

                }

            }

            assertTimeOutEvent(events, 10, null);

            assertTimeOutEvent(events, 1_000_000, THREAD_NAME);

            assertTimeOutEvent(events, 11, null);

        }

    }

    private static boolean isWaitEvent(RecordedEvent event) {

        RecordedClass t = event.getValue("monitorClass");

        return t != null && t.getName().equals(Lock.class.getName());

    }

    private static void assertTimeOutEvent(List<RecordedEvent> events, long timeout, String expectedThreadName) {

        for (RecordedEvent e : events) {

            if (isWaitEvent(e)) {

                Long l = e.getValue("timeout");

                if (l == timeout) {

                    RecordedThread notifier = e.getValue("notifier");

                    String threadName = null;

                    if (notifier != null) {

                        threadName = notifier.getJavaName();

                    }

                    Asserts.assertEquals(threadName, expectedThreadName, "Invalid thread");

                    return;

                }

            }

        }

        Asserts.fail("Could not find event with monitorClass" + Lock.class.getName());

    }

}