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 }