/*

 * 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.

 *

 * 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.

 */

import jdk.jfr.Event;

import jdk.jfr.Description;

import jdk.jfr.Label;

// This class generates simple event in a loop for a specified time.

public class EventGeneratorLoop {

    public static final String MAIN_METHOD_STARTED = "MAIN_METHOD_STARTED";

    @Label("SimpleEvent")

    @Description("Simple custom event")

    static class SimpleEvent extends Event {

        @Label("Message")

        String msg;

        @Label("Count")

        int count;

    }

    public static void main(String[] args) throws Exception {

        if ((args.length < 1) || (args[0] == null)) {

            throw new IllegalArgumentException("Expecting one argument: time to run (seconds)");

        }

        int howLong = Integer.parseInt(args[0]);

        System.out.println(MAIN_METHOD_STARTED + ", argument is " + howLong);

        for (int i=0; i < howLong; i++) {

            SimpleEvent ev = new SimpleEvent();

            ev.msg = "Hello";

            ev.count = i;

            ev.commit();

            try { Thread.sleep(1000); } catch (InterruptedException e) {}

            System.out.print(".");

        }

        System.out.println("EventGeneratorLoop is coming to an end");

    }

}