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.event; 27 28 import java.time.Duration; 29 import java.util.List; 30 31 import jdk.jfr.Event; 32 import jdk.jfr.Recording; 33 import jdk.jfr.consumer.RecordedEvent; 34 import jdk.test.lib.jfr.Events; 35 36 /* 37 * @test 38 * @summary Enable an event from a static function in the event. 39 * @key jfr 40 * @library /test/lib 41 * @run main/othervm jdk.jfr.api.event.TestStaticEnable 42 */ 43 public class TestStaticEnable { 44 45 public static void main(String[] args) throws Exception { 46 Recording r = new Recording(); 47 MyEvent.enable(r, true); 48 r.start(); 49 MyEvent.create("Hello", 1); 50 r.stop(); 51 52 List<RecordedEvent> events = Events.fromRecording(r); 53 Events.hasEvents(events); 54 for (RecordedEvent event : events) { 55 System.out.println("Event:" + event); 56 Events.assertField(event, "msg").equal("Hello"); 57 Events.assertField(event, "id").equal(1L); 58 } 59 r.close(); 60 } 61 62 63 public static class MyEvent extends Event { 64 public String msg; 65 long id; 66 67 public static void enable(Recording r, boolean isEnabled) { 68 if (isEnabled) { 69 r.enable(MyEvent.class).withThreshold(Duration.ofMillis(0)).withoutStackTrace(); 70 } else { 71 r.disable(MyEvent.class); 72 } 73 } 74 75 public static void create(String msg, long id) { 76 MyEvent event = new MyEvent(); 77 event.msg = msg; 78 event.id = id; 79 event.begin(); 80 event.end(); 81 event.commit(); 82 } 83 } 84 85 }