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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  * @requires vm.hasJFR
38  * @library /test/lib /test/jdk
39  * @run main/othervm jdk.jfr.jmx.TestMultipleRecordings
40  */
41 public class TestMultipleRecordings {
main(String[] args)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 
createRecording(FlightRecorderMXBean bean)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 
startRecording(long recId, FlightRecorderMXBean bean)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 
stopRecording(long recId, FlightRecorderMXBean bean)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 
destroyRecording(long recId, FlightRecorderMXBean bean)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 }
96