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.List;
  29 
  30 import jdk.jfr.RecordingState;
  31 import jdk.management.jfr.FlightRecorderMXBean;
  32 import jdk.management.jfr.RecordingInfo;
  33 
  34 /**
  35  * @test
  36  * @key jfr
  37  *
  38  * @library /lib /
  39  * @run main/othervm jdk.jfr.jmx.TestMultipleRecordings
  40  */
  41 public class TestMultipleRecordings {
  42     public static void main(String[] args) throws Throwable {
  43         FlightRecorderMXBean bean = JmxHelper.getFlighteRecorderMXBean();
  44         System.out.println("bean.class=" + bean.getClass().getName());
  45 
  46         // Start recA
  47         long recIdA = createRecording(bean);
  48         startRecording(recIdA, bean);
  49 
  50         // Start recB
  51         long recIdB = createRecording(bean);
  52         startRecording(recIdB, bean);
  53 
  54         // Stop and destroy recA
  55         stopRecording(recIdA, bean);
  56         destroyRecording(recIdA, bean);
  57 
  58         // Start, stop and destroy recC
  59         long recIdC = createRecording(bean);
  60         startRecording(recIdC, bean);
  61         stopRecording(recIdC, bean);
  62         destroyRecording(recIdC, bean);
  63 
  64         // Stop and destroy recB
  65         stopRecording(recIdB, bean);
  66         destroyRecording(recIdB, bean);
  67     }
  68 
  69     private static long createRecording(FlightRecorderMXBean bean) throws Exception {
  70         List<RecordingInfo> preCreateRecordings = bean.getRecordings();
  71         long recId = bean.newRecording();
  72         JmxHelper.verifyNotExists(recId, preCreateRecordings);
  73         JmxHelper.verifyState(recId, RecordingState.NEW, bean);
  74         return recId;
  75     }
  76 
  77     private static void startRecording(long recId, FlightRecorderMXBean bean) throws Exception {
  78         JmxHelper.verifyState(recId, RecordingState.NEW, bean);
  79         bean.startRecording(recId);
  80         JmxHelper.verifyState(recId, RecordingState.RUNNING, bean);
  81     }
  82 
  83     private static void stopRecording(long recId, FlightRecorderMXBean bean) throws Exception {
  84         JmxHelper.verifyState(recId, RecordingState.RUNNING, bean);
  85         bean.stopRecording(recId);
  86         JmxHelper.verifyState(recId, RecordingState.STOPPED, bean);
  87     }
  88 
  89     private static void destroyRecording(long recId, FlightRecorderMXBean bean) throws Exception {
  90         JmxHelper.verifyState(recId, RecordingState.STOPPED, bean);
  91         bean.closeRecording(recId);
  92         JmxHelper.verifyNotExists(recId, bean.getRecordings());
  93     }
  94 
  95 }