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 * 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).

 *

 * 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,

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 *

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package jdk.jfr.api.event;

import jdk.jfr.Event;

import jdk.jfr.EventType;

import jdk.jfr.Recording;

import jdk.test.lib.Asserts;

/*

 * @test

 * @summary Test Event.isEnabled() with multiple recordings

 * @key jfr

 * @library /test/lib

 * @run main/othervm jdk.jfr.api.event.TestIsEnabledMultiple

 */

public class TestIsEnabledMultiple {

    enum When {

        BeforeStart, DuringRecording

    }

    enum RecState {

        New, Running

    }

    enum EnableState {

        Enabled, Disabled

    }

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

        for (RecState recStateA : RecState.values()) {

            for (RecState recStateB : RecState.values()) {

                for (EnableState enableStateA : EnableState.values()) {

                    for (EnableState enableStateB : EnableState.values()) {

                        assertEnabled(recStateA, recStateB, enableStateA, enableStateB);

                    }

                }

            }

        }

    }

    private static void assertEnabled(RecState recStateA, RecState recStateB, EnableState enableStateA, EnableState enableStateB) {

        Recording a = new Recording();

        Recording b = new Recording();

        assertEnablement(false); // no recording running

        if (enableStateA == EnableState.Disabled) {

            a.disable(MyEvent.class);

        }

        if (enableStateA == EnableState.Enabled) {

            a.enable(MyEvent.class);

        }

        if (enableStateB == EnableState.Disabled) {

            b.disable(MyEvent.class);

        }

        if (enableStateB == EnableState.Enabled) {

            b.enable(MyEvent.class);

        }

        if ( enableStateA == EnableState.Disabled && recStateA == RecState.Running) {

            if ( enableStateB == EnableState.Disabled && recStateB == RecState.Running) {

                System.out.println();

            }

        }

        if (recStateA == RecState.Running) {

            a.start();

        }

        if (recStateB == RecState.Running) {

            b.start();

        }

        System.out.println("Recording a is " + a.getState() + ". Event is " + enableStateA);

        System.out.println("Recording b is " + b.getState() + ". Event is " + enableStateB);

        // an event is enabled if at least one recording is running

        // and the event is on by default or has been enabled.

        boolean aEnabled = recStateA == RecState.Running && enableStateA == EnableState.Enabled;

        boolean bEnabled = recStateB == RecState.Running && enableStateB == EnableState.Enabled;

        boolean enabled = aEnabled || bEnabled;

        System.out.println("Expected enablement: " + enabled);

        System.out.println();

        assertEnablement(enabled);

        if (recStateA == RecState.Running) {

            a.stop();

        }

        if (recStateB == RecState.Running) {

            b.stop();

        }

        assertEnablement(false); // no recording running

        a.close();

        b.close();

    }

    private static void assertEnablement(boolean enabled) {

        Asserts.assertEQ(EventType.getEventType(MyEvent.class).isEnabled(), enabled, "Event enablement not as expected");

    }

    @SuppressWarnings("unused")

    private static class MyEvent extends Event {

        public String msg;

    }

}