/*

 * Copyright (c) 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,

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 *

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package jdk.jfr.api.consumer;

import java.nio.file.Files;

import java.nio.file.Path;

import java.util.List;

import jdk.jfr.Event;

import jdk.jfr.Recording;

import jdk.jfr.consumer.RecordedEvent;

import jdk.jfr.consumer.RecordedThread;

import jdk.jfr.consumer.RecordingFile;

import jdk.test.lib.Asserts;

/*

 * @test

 * @summary Tests that the RecordedEvent.getThread() returns th expected info

 * @key jfr

 * @library /test/lib

 * @run main/othervm jdk.jfr.api.consumer.TestRecordedEventGetThreadOther

 */

public class TestRecordedEventGetThreadOther {

    private static final String MY_THREAD_NAME = "MY_THREAD_NAME";

    private static long expectedThreadId;

    private static Path dumpFilePath;

    static class TestEvent extends Event {

    }

    static class PostingThread extends Thread {

        PostingThread() {

            setName(MY_THREAD_NAME);

            expectedThreadId = getId();

        }

        @Override

        public void run() {

            try {

                System.out.println("Starting thread...");

                dumpFilePath = postEventAndDumpToFile();

                System.out.println("events dumped to the file " + dumpFilePath);

            } catch (Throwable t) {

                t.printStackTrace();

                Asserts.fail();

            }

        }

    }

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

        Thread.currentThread().setName("MyMainThread");

        PostingThread thread = new PostingThread();

        thread.start();

        thread.join();

        System.out.println("testing dump in file " + dumpFilePath);

        List<RecordedEvent> events = RecordingFile.readAllEvents(dumpFilePath);

        Asserts.assertEquals(events.size(), 1);

        RecordedEvent event = events.get(0);

        RecordedThread recordedThread = event.getThread();

        Asserts.assertNotNull(recordedThread);

        Asserts.assertEquals(recordedThread.getJavaName(), MY_THREAD_NAME);

        Asserts.assertEquals(recordedThread.getJavaThreadId(), expectedThreadId);

        Asserts.assertNotNull(recordedThread.getId());

        Asserts.assertEquals(recordedThread.getOSName(), MY_THREAD_NAME);

    }

    private static Path postEventAndDumpToFile() throws Throwable {

        Recording r = new Recording();

        r.start();

        TestEvent t = new TestEvent();

        t.commit();

        r.stop();

        Path path = Files.createTempFile("recording", ".jfr");

        System.out.println("Created path: " + path);

        r.dump(path);

        r.close();

        return path;

    }

}