--- /dev/null 2019-02-07 20:54:51.336000000 +0300 +++ new/test/jdk/jfr/api/recorder/TestRecorderListener.java 2019-02-08 18:33:01.057290725 +0300 @@ -0,0 +1,106 @@ +/* + * Copyright (c) 2016, 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 + * or visit www.oracle.com if you need additional information or have any + * questions. + */ +package jdk.jfr.api.recorder; + +import java.util.concurrent.CountDownLatch; + +import jdk.jfr.FlightRecorder; +import jdk.jfr.FlightRecorderListener; +import jdk.jfr.Recording; +import jdk.jfr.RecordingState; + +/** + * @test TestRecorderListener + * + * @key jfr + * + * @run main/othervm jdk.jfr.api.recorder.TestRecorderListener + */ +public class TestRecorderListener { + + static class Listener implements FlightRecorderListener { + + private final CountDownLatch latch = new CountDownLatch(1); + private final RecordingState waitFor; + + public Listener(RecordingState state) { + waitFor = state; + } + + @Override + public void recordingStateChanged(Recording recording) { + System.out.println("Listener: recording=" + recording.getName() + " state=" + recording.getState()); + RecordingState rs = recording.getState(); + if (rs == waitFor) { + latch.countDown(); + } + } + + public void waitFor() throws InterruptedException { + latch.await(); + } + } + + public static void main(String... args) throws Exception { + Listener recordingListener = new Listener(RecordingState.RUNNING); + FlightRecorder.addListener(recordingListener); + + Listener stoppedListener = new Listener(RecordingState.STOPPED); + FlightRecorder.addListener(stoppedListener); + + Listener finishedListener = new Listener(RecordingState.CLOSED); + FlightRecorder.addListener(finishedListener); + + Recording recording = new Recording(); + if (recording.getState() != RecordingState.NEW) { + recording.close(); + throw new Exception("New recording should be in NEW state"); + } + + recording.start(); + recordingListener.waitFor(); + + recording.stop(); + stoppedListener.waitFor(); + + recording.close(); + finishedListener.waitFor(); + + testDefaultrecordingStateChangedListener(); + + } + + private static class DummyListener implements FlightRecorderListener { + + } + + private static void testDefaultrecordingStateChangedListener() { + FlightRecorder.addListener(new DummyListener()); + Recording recording = new Recording(); + recording.start(); + recording.stop(); + recording.close(); + } +}