1 /*

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

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

     4  *

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

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

     7  * published by the Free Software Foundation.  Oracle designates this

     8  * particular file as subject to the "Classpath" exception as provided

     9  * by Oracle in the LICENSE file that accompanied this code.

    10  *

    11  * This code is distributed in the hope that it will be useful, but WITHOUT

    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    14  * version 2 for more details (a copy is included in the LICENSE file that

    15  * accompanied this code).

    16  *

    17  * You should have received a copy of the GNU General Public License version

    18  * 2 along with this work; if not, write to the Free Software Foundation,

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

    20  *

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

    22  * or visit www.oracle.com if you need additional information or have any

    23  * questions.

    24  */

    25 

    26 package jdk.jfr.api.recording.state;

    27 

    28 import java.time.Duration;

    29 import java.time.Instant;

    30 

    31 import jdk.jfr.Recording;

    32 import jdk.jfr.RecordingState;

    33 import jdk.test.lib.Asserts;

    34 import jdk.test.lib.jfr.CommonHelper;

    35 import jdk.test.lib.jfr.VoidFunction;

    36 

    37 /*

    38  * @test

    39  * @summary Test Recording state

    40  * @key jfr

    41  * @library /test/lib

    42  * @run main/othervm jdk.jfr.api.recording.state.TestStateDuration

    43  */

    44 public class TestStateDuration {

    45 

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

    47         Duration duration = Duration.ofSeconds(2);

    48         Recording r = new Recording();

    49         r.setDuration(duration);

    50         CommonHelper.verifyRecordingState(r, RecordingState.NEW);

    51         Instant start = Instant.now();

    52         System.out.println("Recording with duration " + duration + " started at " + start);

    53         r.start();

    54 

    55         // Wait for recording to stop automatically

    56         System.out.println("Waiting for recording to reach STOPPED state");

    57         CommonHelper.waitForRecordingState(r, RecordingState.STOPPED);

    58         Instant stop = Instant.now();

    59         Duration measuredDuration = Duration.between(start, stop);

    60         System.out.println("Recording stopped at " + stop + ". Measured duration " + measuredDuration);

    61         // Timer task uses System.currentMillis, and java.time uses other source.

    62         Duration deltaDueToClockNotInSync = Duration.ofMillis(100);

    63         Asserts.assertGreaterThan(measuredDuration.plus(deltaDueToClockNotInSync), duration);

    64         verifyIllegalState(() -> r.start(), "start() after stop()");

    65         r.close();

    66         CommonHelper.verifyRecordingState(r, RecordingState.CLOSED);

    67     }

    68 

    69     private static void verifyIllegalState(VoidFunction f, String msg) throws Throwable {

    70         CommonHelper.verifyException(f, msg, IllegalStateException.class);

    71     }

    72 }