64 lines
2.2 KiB
Java
64 lines
2.2 KiB
Java
/*
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* Copyright (c) 2019, 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.
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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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import jdk.jfr.Event;
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import jdk.jfr.Description;
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import jdk.jfr.Label;
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// This class generates simple event in a loop for a specified time.
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public class EventGeneratorLoop {
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public static final String MAIN_METHOD_STARTED = "MAIN_METHOD_STARTED";
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@Label("SimpleEvent")
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@Description("Simple custom event")
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static class SimpleEvent extends Event {
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@Label("Message")
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String msg;
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@Label("Count")
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int count;
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}
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public static void main(String[] args) throws Exception {
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if ((args.length < 1) || (args[0] == null)) {
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throw new IllegalArgumentException("Expecting one argument: time to run (seconds)");
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}
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int howLong = Integer.parseInt(args[0]);
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System.out.println(MAIN_METHOD_STARTED + ", argument is " + howLong);
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for (int i=0; i < howLong; i++) {
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SimpleEvent ev = new SimpleEvent();
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ev.msg = "Hello";
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ev.count = i;
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ev.commit();
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try { Thread.sleep(1000); } catch (InterruptedException e) {}
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System.out.print(".");
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}
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System.out.println("EventGeneratorLoop is coming to an end");
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}
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}
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