1 /*

     2  * Copyright (c) 2018, 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.event;

    27 

    28 import jdk.jfr.Event;

    29 import jdk.jfr.EventType;

    30 import jdk.jfr.Recording;

    31 import jdk.test.lib.Asserts;

    32 

    33 /*

    34  * @test

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

    36  * @key jfr

    37  * @library /test/lib

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

    39  */

    40 

    41 public class TestIsEnabledMultiple {

    42 

    43     enum When {

    44         BeforeStart, DuringRecording

    45     }

    46 

    47     enum RecState {

    48         New, Running

    49     }

    50 

    51     enum EnableState {

    52         Enabled, Disabled

    53     }

    54 

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

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

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

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

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

    60                         assertEnabled(recStateA, recStateB, enableStateA, enableStateB);

    61                     }

    62                 }

    63             }

    64         }

    65     }

    66 

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

    68 

    69         Recording a = new Recording();

    70         Recording b = new Recording();

    71         assertEnablement(false); // no recording running

    72 

    73         if (enableStateA == EnableState.Disabled) {

    74             a.disable(MyEvent.class);

    75         }

    76         if (enableStateA == EnableState.Enabled) {

    77             a.enable(MyEvent.class);

    78         }

    79         if (enableStateB == EnableState.Disabled) {

    80             b.disable(MyEvent.class);

    81         }

    82         if (enableStateB == EnableState.Enabled) {

    83             b.enable(MyEvent.class);

    84         }

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

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

    87                 System.out.println();

    88             }

    89         }

    90         if (recStateA == RecState.Running) {

    91             a.start();

    92         }

    93         if (recStateB == RecState.Running) {

    94             b.start();

    95         }

    96 

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

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

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

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

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

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

   103         boolean enabled = aEnabled || bEnabled;

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

   105         System.out.println();

   106         assertEnablement(enabled);

   107         if (recStateA == RecState.Running) {

   108             a.stop();

   109         }

   110         if (recStateB == RecState.Running) {

   111             b.stop();

   112         }

   113         assertEnablement(false); // no recording running

   114         a.close();

   115         b.close();

   116     }

   117 

   118     private static void assertEnablement(boolean enabled) {

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

   120     }

   121 

   122     @SuppressWarnings("unused")

   123     private static class MyEvent extends Event {

   124         public String msg;

   125     }

   126 

   127 }