1 /*

     2  * Copyright (c) 2013, 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.jmx;

    27 

    28 import java.util.ArrayList;

    29 import java.util.List;

    30 

    31 import jdk.management.jfr.RecordingInfo;

    32 import jdk.test.lib.Asserts;

    33 

    34 /*

    35  * @test

    36  * @key jfr

    37  * @library /test/lib /test/jdk

    38  * @run main/othervm jdk.jfr.jmx.TestGetRecordingsMultiple

    39  */

    40 public class TestGetRecordingsMultiple {

    41 

    42     private static class TestRecording {

    43         long id;

    44         boolean isClosed;

    45         public TestRecording(long id) {

    46             this.id = id;

    47             isClosed = false;

    48         }

    49     }

    50 

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

    52         List<TestRecording> testRecordings = new ArrayList<>();

    53         for (int i = 0; i < 5; ++i) {

    54             verifyExistingRecordings(testRecordings);

    55             testRecordings.add(createRecording());

    56             if (i >= 1) {

    57                 startRecording(testRecordings.get(i-1));

    58             }

    59             if (i >= 2) {

    60                 stopRecording(testRecordings.get(i-2));

    61             }

    62             if (i >= 3) {

    63                 closeRecording(testRecordings.get(i-3));

    64             }

    65         }

    66         verifyExistingRecordings(testRecordings);

    67 

    68         for (TestRecording r : testRecordings) {

    69             if (!r.isClosed) {

    70                 closeRecording(r);

    71             }

    72         }

    73         verifyExistingRecordings(testRecordings);

    74     }

    75 

    76     // Verify that all active recordings are found, but no closed recordings.

    77     private static void verifyExistingRecordings(List<TestRecording> testRecordings) {

    78         for (TestRecording testRecording : testRecordings) {

    79             RecordingInfo r = findRecording(testRecording);

    80             if (r != null) {

    81                 Asserts.assertFalse(testRecording.isClosed, "Found closed recording with id " + testRecording.id);

    82                 System.out.printf("Recording %d: %s%n", r.getId(), r.getState());

    83             } else {

    84                 Asserts.assertTrue(testRecording.isClosed, "Missing recording with id " + testRecording.id);

    85                 System.out.printf("Recording %d: CLOSED%n", testRecording.id);

    86             }

    87         }

    88     }

    89 

    90     private static RecordingInfo findRecording(TestRecording testRecording) {

    91         for (RecordingInfo r : JmxHelper.getFlighteRecorderMXBean().getRecordings()) {

    92             if (r.getId() == testRecording.id) {

    93                 return r;

    94             }

    95         }

    96         return null;

    97     }

    98 

    99     private static TestRecording createRecording() {

   100         long id = JmxHelper.getFlighteRecorderMXBean().newRecording();

   101         System.out.println("created recording " + id);

   102         return new TestRecording(id);

   103     }

   104 

   105     private static void startRecording(TestRecording rec) {

   106         System.out.println("starting recording " + rec.id);

   107         JmxHelper.getFlighteRecorderMXBean().startRecording(rec.id);

   108     }

   109 

   110     private static void stopRecording(TestRecording rec) {

   111         System.out.println("stopping recording " + rec.id);

   112         JmxHelper.getFlighteRecorderMXBean().stopRecording(rec.id);

   113     }

   114 

   115     private static void closeRecording(TestRecording rec) throws Exception {

   116         System.out.println("closing recording " + rec.id);

   117         JmxHelper.getFlighteRecorderMXBean().closeRecording(rec.id);

   118         rec.isClosed = true;

   119 

   120     }

   121 }