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 }