test/jdk/jdk/jfr/api/consumer/TestRecordedEventGetThreadOther.java

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * accompanied this code).
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package jdk.jfr.api.consumer;

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;
import jdk.test.lib.Utils;

/**
 * @test
 * @summary Tests that the RecordedEvent.getThread() returns th expected info
 * @key jfr
 * @requires vm.hasJFR
 * @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 = Utils.createTempFile("event-thread", ".jfr");
        System.out.println("Created path: " + path);
        r.dump(path);
        r.close();
        return path;
    }
}