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/*
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* Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package jdk.jfr.api.recording.event;
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import java.lang.reflect.Constructor;
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import java.time.Duration;
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import java.util.ArrayList;
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import java.util.List;
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import jdk.jfr.Event;
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import jdk.jfr.Recording;
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import jdk.jfr.consumer.RecordedEvent;
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import jdk.test.lib.Asserts;
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import jdk.test.lib.jfr.Events;
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/*
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* @test
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* @summary Load event class after recording started.
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* @key jfr
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* @library /test/lib
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* @build jdk.test.lib.jfr.SimpleEvent
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* @run main/othervm jdk.jfr.api.recording.event.TestLoadEventAfterStart
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*/
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public class TestLoadEventAfterStart {
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public static void main(String[] args) throws Throwable {
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Recording r = new Recording();
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r.start();
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ClassLoader classLoader = TestLoadEventAfterStart.class.getClassLoader();
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Class<? extends Event> eventClass =
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classLoader.loadClass("jdk.test.lib.jfr.SimpleEvent").asSubclass(Event.class);
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r.enable(eventClass).withThreshold(Duration.ofMillis(0)).withoutStackTrace();
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createEvent(eventClass, 1);
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r.disable(eventClass);
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createEvent(eventClass, 2);
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r.enable(eventClass).withThreshold(Duration.ofMillis(0)).withoutStackTrace();
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createEvent(eventClass, 3);
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r.stop();
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verifyEvents(r, 1, 3);
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}
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private static void verifyEvents(Recording r, int ... ids) throws Exception {
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List<Integer> eventIds = new ArrayList<>();
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for (RecordedEvent event : Events.fromRecording(r)) {
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int id = Events.assertField(event, "id").getValue();
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System.out.println("Event id:" + id);
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eventIds.add(id);
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}
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Asserts.assertEquals(eventIds.size(), ids.length, "Wrong number of events");
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for (int i = 0; i < ids.length; ++i) {
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Asserts.assertEquals(eventIds.get(i).intValue(), ids[i], "Wrong id in event");
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}
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}
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private static void createEvent(Class<? extends Event> eventClass, int id) throws Exception {
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Constructor<? extends Event> constructor = eventClass.getConstructor();
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Event event = (Event) constructor.newInstance();
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event.begin();
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eventClass.getDeclaredField("id").setInt(event, id);
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event.end();
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event.commit();
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}
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}
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