| /* |
| * 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, |
| * 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.recording.event; |
| |
| import java.time.Duration; |
| import java.util.List; |
| |
| import jdk.jfr.Event; |
| import jdk.jfr.Recording; |
| import jdk.jfr.consumer.RecordedEvent; |
| import jdk.test.lib.Asserts; |
| import jdk.test.lib.jfr.Events; |
| |
| /** |
| * @test |
| * @summary Test event threshold. |
| * @key jfr |
| * @requires vm.hasJFR |
| * @library /test/lib |
| * @run main/othervm jdk.jfr.api.recording.event.TestThreshold |
| */ |
| public class TestThreshold { |
| |
| public static void main(String[] args) throws Throwable { |
| Recording r = new Recording(); |
| |
| r.start(); |
| r.enable(MyEvent.class).withThreshold(Duration.ofMillis(500)); |
| createEvent(0, 100); |
| createEvent(1, 600); |
| createEvent(2, 100); |
| r.stop(); |
| |
| List<RecordedEvent> events = Events.fromRecording(r); |
| Asserts.assertTrue(1 <= events.size(), "Should get at most 1 event"); |
| r.close(); |
| } |
| |
| private static void createEvent(int id, long duration) throws Exception { |
| MyEvent event = new MyEvent(id); |
| long start = System.currentTimeMillis(); |
| |
| event.begin(); |
| sleepUntil(start + duration); |
| event.end(); |
| |
| long actualDuration = System.currentTimeMillis() - start; |
| System.out.printf("targetDuration=%d, actualDuration=%d, shouldCommit=%b%n", |
| duration, actualDuration, event.shouldCommit()); |
| event.commit(); |
| } |
| |
| private static void sleepUntil(long endTime) throws Exception { |
| long sleepTime = endTime - System.currentTimeMillis(); |
| while(sleepTime > 0) { |
| Thread.sleep(sleepTime); |
| sleepTime = endTime - System.currentTimeMillis(); |
| } |
| } |
| |
| static class MyEvent extends Event { |
| public int id; |
| public MyEvent(int id) { |
| this.id = id; |
| } |
| } |
| |
| } |