| /* |
| * Copyright (c) 2019, 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.event.runtime; |
| |
| import java.util.concurrent.CountDownLatch; |
| |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import jdk.jfr.Event; |
| import jdk.jfr.FlightRecorder; |
| import jdk.jfr.Period; |
| import jdk.jfr.Recording; |
| import jdk.jfr.consumer.RecordingStream; |
| import jdk.jfr.consumer.RecordedEvent; |
| |
| import jdk.test.lib.Asserts; |
| import jdk.test.lib.jfr.EventNames; |
| |
| /** |
| * @test |
| * @summary Verifies at the metalevel that stream contents are written to ongoing recordings |
| * @key jfr |
| * @requires vm.hasJFR |
| * @library /test/lib |
| * @run main/othervm -Xlog:jfr+system+streaming=trace jdk.jfr.event.runtime.TestFlush |
| */ |
| public class TestFlush { |
| private static boolean flushEventAck = false; |
| |
| @Period("2 s") |
| static class ZebraEvent extends Event { |
| } |
| static class CatEvent extends Event { |
| } |
| static class DogEvent extends Event { |
| } |
| static class MouseEvent extends Event { |
| } |
| |
| public static void main(String... args) throws InterruptedException { |
| CountDownLatch dogLatch = new CountDownLatch(1); |
| CountDownLatch catLatch = new CountDownLatch(1); |
| CountDownLatch mouseLatch = new CountDownLatch(1); |
| CountDownLatch zebraLatch = new CountDownLatch(3); |
| |
| FlightRecorder.addPeriodicEvent(ZebraEvent.class, () -> { |
| ZebraEvent ze = new ZebraEvent(); |
| ze.commit(); |
| }); |
| |
| try (RecordingStream rs = new RecordingStream()) { |
| rs.enable(EventNames.Flush); |
| rs.enable(EventNames.FlushStorage); |
| rs.enable(EventNames.FlushStacktrace); |
| rs.enable(EventNames.FlushStringPool); |
| rs.enable(EventNames.FlushMetadata); |
| rs.enable(EventNames.FlushTypeSet); |
| rs.onEvent(e -> { |
| switch (e.getEventType().getName()) { |
| case EventNames.Flush: |
| flushEventAck = true; |
| case EventNames.FlushStorage: |
| case EventNames.FlushStacktrace: |
| case EventNames.FlushStringPool: |
| case EventNames.FlushMetadata: |
| case EventNames.FlushTypeSet: |
| validateFlushEvent(e); |
| return; |
| } |
| if (e.getEventType().getName().equals(CatEvent.class.getName())) { |
| System.out.println("Found cat!"); |
| catLatch.countDown(); |
| return; |
| } |
| if (e.getEventType().getName().equals(DogEvent.class.getName())) { |
| System.out.println("Found dog!"); |
| dogLatch.countDown(); |
| return; |
| } |
| if (e.getEventType().getName().equals(ZebraEvent.class.getName())) { |
| System.out.println("Found zebra!"); |
| zebraLatch.countDown(); |
| return; |
| } |
| if (e.getEventType().getName().equals(MouseEvent.class.getName())) { |
| System.out.println("Found mouse!"); |
| mouseLatch.countDown(); |
| return; |
| } |
| System.out.println("Unexpected event: " + e.getEventType().getName()); |
| }); |
| |
| rs.startAsync(); |
| |
| try (Recording r1 = new Recording()) { |
| r1.start(); |
| MouseEvent me = new MouseEvent(); |
| me.commit(); |
| System.out.println("Mouse emitted"); |
| mouseLatch.await(); |
| try (Recording r2 = new Recording()) { // force chunk rotation in stream |
| r2.start(); |
| DogEvent de = new DogEvent(); |
| de.commit(); |
| System.out.println("Dog emitted"); |
| dogLatch.await(); |
| CatEvent ce = new CatEvent(); |
| ce.commit(); |
| System.out.println("Cat emitted"); |
| catLatch.await(); |
| zebraLatch.await(); |
| acknowledgeFlushEvent(); |
| } |
| } |
| } |
| } |
| |
| private static void printEvent(RecordedEvent re) { |
| System.out.println(re.getEventType().getName()); |
| System.out.println(re.getStartTime().toEpochMilli()); |
| System.out.println(re.getEndTime().toEpochMilli()); |
| } |
| |
| private static void printFlushEvent(RecordedEvent re) { |
| printEvent(re); |
| System.out.println("flushID: " + (long) re.getValue("flushId")); |
| System.out.println("elements: " + (long) re.getValue("elements")); |
| System.out.println("size: " + (long) re.getValue("size")); |
| } |
| |
| private static void validateFlushEvent(RecordedEvent re) { |
| printFlushEvent(re); |
| Asserts.assertTrue(re.getEventType().getName().contains("Flush"), "invalid Event type"); |
| Asserts.assertGT((long) re.getValue("flushId"), 0L, "Invalid flush ID"); |
| Asserts.assertGT((long) re.getValue("elements"), 0L, "No elements"); |
| Asserts.assertGT((long) re.getValue("size"), 0L, "Empty size"); |
| } |
| |
| private static void acknowledgeFlushEvent() { |
| Asserts.assertTrue(flushEventAck, "No Flush event"); |
| } |
| } |