1 /*
   2  * Copyright (c) 2018, 2019, 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.recording.event;
  27 
  28 import java.nio.file.Files;
  29 import java.nio.file.Paths;
  30 import java.util.Iterator;
  31 
  32 import jdk.jfr.Recording;
  33 import jdk.jfr.consumer.RecordedEvent;
  34 import jdk.testlibrary.Asserts;
  35 import jdk.testlibrary.jfr.EventNames;
  36 import jdk.testlibrary.jfr.Events;
  37 
  38 /*
  39  * @test
  40  * @summary Simple enable Event class.
  41  * @key jfr
  42  * @library /lib/testlibrary
  43  * @run main/othervm jdk.jfr.api.recording.event.TestEnableName
  44  */
  45 public class TestEnableName {
  46 
  47     public static void main(String[] args) throws Throwable {
  48         Recording r = new Recording();
  49         final String eventType = EventNames.FileWrite;
  50         r.enable(eventType).withoutStackTrace();
  51         r.start();
  52         Files.write(Paths.get(".", "dummy.txt"), "DummyFile".getBytes());
  53         r.stop();
  54 
  55         Iterator<RecordedEvent> iterator = Events.fromRecording(r).iterator();
  56         Asserts.assertTrue(iterator.hasNext(), "No events found");
  57         System.out.printf("Event:%n%s%n", iterator.next());
  58         r.close();
  59     }
  60 
  61 }