8199712: Flight Recorder
Reviewed-by: coleenp, ihse, erikj, dsamersoff, mseledtsov, egahlin, mgronlun
Contributed-by: erik.gahlin@oracle.com, markus.gronlund@oracle.com
/*
* 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).
*
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* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
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package jdk.jfr.api.recording.event;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.Iterator;
import jdk.jfr.Recording;
import jdk.jfr.consumer.RecordedEvent;
import jdk.test.lib.Asserts;
import jdk.test.lib.jfr.EventNames;
import jdk.test.lib.jfr.Events;
/*
* @test
* @summary Simple enable Event class.
* @key jfr
* @library /test/lib
* @run main/othervm jdk.jfr.api.recording.event.TestEnableName
*/
public class TestEnableName {
public static void main(String[] args) throws Throwable {
Recording r = new Recording();
final String eventType = EventNames.FileWrite;
r.enable(eventType).withoutStackTrace();
r.start();
Files.write(Paths.get(".", "dummy.txt"), "DummyFile".getBytes());
r.stop();
Iterator<RecordedEvent> iterator = Events.fromRecording(r).iterator();
Asserts.assertTrue(iterator.hasNext(), "No events found");
System.out.printf("Event:%n%s%n", iterator.next());
r.close();
}
}