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25 
26 package jdk.jfr.api.recording.dump;
27 
28 import java.nio.file.Files;
29 import java.nio.file.Path;
30 import java.nio.file.Paths;
31 
32 import jdk.jfr.Recording;
33 import jdk.jfr.consumer.RecordedEvent;
34 import jdk.jfr.consumer.RecordingFile;
35 import jdk.test.lib.Asserts;
36 import jdk.test.lib.jfr.Events;
37 import jdk.test.lib.jfr.SimpleEventHelper;
38 
39 /**
40  * @test
41  * @summary Test copyTo and parse file
42  * @key jfr
43  * @requires vm.hasJFR
44  * @library /test/lib
45  * @run main/othervm jdk.jfr.api.recording.dump.TestDumpMultiple
46  */
47 public class TestDumpMultiple {
48 
main(String[] args)49     public static void main(String[] args) throws Exception {
50         Recording rA = new Recording();
51         Recording rB = new Recording();
52 
53         // Enable event in one recording and disable in the other.
54         // Both recordings should still get the events, since we always
55         // get the "union" of all settings.
56         SimpleEventHelper.enable(rA, true);
57         SimpleEventHelper.enable(rB, false);
58 
59         SimpleEventHelper.createEvent(0); // To no recording
60 
61         rA.start();
62         SimpleEventHelper.createEvent(1); // Only to recA
63 
64         rB.start();
65         SimpleEventHelper.createEvent(2); // To both recordings
66 
67         rA.stop();
68 
69         // This event will not be in recB.
70         // The reason is that recA has stopped so event is no longer enabled.
71         SimpleEventHelper.createEvent(3);
72 
73         // Enable the event and create a new event for recB
74         SimpleEventHelper.enable(rB, true);
75         SimpleEventHelper.createEvent(4);
76 
77         rB.stop();
78         SimpleEventHelper.createEvent(5); // To no recording
79 
80         Path pathA = Paths.get(".", "recA.jfr");
81         Path pathB = Paths.get(".", "recB.jfr");
82         rA.dump(pathA);
83         rB.dump(pathB);
84         rB.close();
85         rA.close();
86 
87         verifyRecording(pathA, 1, 2);
88         verifyRecording(pathB, 2, 4);
89     }
90 
verifyRecording(Path path, int... ids)91     private static void verifyRecording(Path path, int... ids) throws Exception {
92         Asserts.assertTrue(Files.exists(path), "Recording file does not exist: " + path);
93         int countEvent = 0;
94         for (RecordedEvent event : RecordingFile.readAllEvents(path)) {
95             int id = Events.assertField(event, "id").getValue();
96             System.out.printf("Recording '%s' id=%d%n", path, id);
97             Asserts.assertTrue(ids.length > countEvent, "Found extra event");
98             Events.assertField(event, "id").equal(ids[countEvent]);
99             ++countEvent;
100         }
101         // We expect exactly 4 events in each file. 2 events * 2 chunks
102         Asserts.assertEquals(countEvent, ids.length, "Found too few events");
103     }
104 
105 }
106