1 /*
2  * Copyright (c) 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.api.event;
27 
28 import java.time.Instant;
29 import java.util.Iterator;
30 
31 import jdk.jfr.Event;
32 import jdk.jfr.Recording;
33 import jdk.jfr.consumer.RecordedEvent;
34 import jdk.test.lib.Asserts;
35 import jdk.test.lib.jfr.Events;
36 
37 /**
38  * @test
39  * @summary Use custom event that reuse method names begin, end and commit.
40  * @key jfr
41  * @requires vm.hasJFR
42  * @library /test/lib
43  * @run main/othervm jdk.jfr.api.event.TestOwnCommit
44  */
45 
46 public class TestOwnCommit {
47 
main(String[] args)48     public static void main(String[] args) throws Throwable {
49        Recording r = new Recording();
50         r.enable(MyEvent.class);
51 
52         r.start();
53 
54         MyEvent event = new MyEvent();
55         event.begin();
56         event.begin = 10;
57         event.duration = Instant.now();
58         MyEvent.startTime = 20;
59         event.shouldCommit = "shouldCommit";
60         MyEvent.set = 30;
61         event.end();
62         event.commit();
63 
64         // Verify that our methods have not been removed by transformation.
65         int id = 0;
66         event.begin(++id);
67         Asserts.assertEquals(id, staticTestValue, "EventWithBegin failed to set value");
68         event.end(++id);
69         Asserts.assertEquals(id, staticTestValue, "EventWithEnd failed to set value");
70         event.commit(++id);
71         Asserts.assertEquals(id, staticTestValue, "EventWithCommit failed to set value");
72         event.shouldCommit(++id);
73         Asserts.assertEquals(id, staticTestValue, "EventWithShouldCommit failed to set value");
74         event.set(++id);
75         Asserts.assertEquals(id, staticTestValue, "EventWithSet failed to set value");
76 
77         r.stop();
78 
79         Iterator<RecordedEvent> it = Events.fromRecording(r).iterator();
80         Asserts.assertTrue(it.hasNext(), "No events");
81         RecordedEvent recordedEvent = it.next();
82         Asserts.assertTrue(Events.isEventType(recordedEvent, MyEvent.class.getName()));
83         Events.assertField(recordedEvent, "begin").equal(10L);
84         Events.assertField(recordedEvent, "shouldCommit").equal("shouldCommit");
85         Events.assertField(recordedEvent, "startTime");
86         Events.assertField(recordedEvent, "duration");
87         Asserts.assertNull(recordedEvent.getEventType().getField("set")); // static not supported
88         Asserts.assertFalse(it.hasNext(), "More than 1 event");
89 
90         r.close();
91     }
92 
93     private static int staticTestValue;
94 
95     @SuppressWarnings("unused")
96     static class MyEvent extends Event {
97         public long begin;
98         private Instant duration;
99         private static int startTime;
100         protected String shouldCommit;
101         public static int set;
102 
begin(int testValue)103         public void begin(int testValue) {
104             staticTestValue = testValue;
105         }
106 
end(int testValue)107         public void end(int testValue) {
108             staticTestValue = testValue;
109         }
110 
commit(int testValue)111         public void commit(int testValue) {
112             staticTestValue = testValue;
113         }
114 
shouldCommit(int testValue)115         public void shouldCommit(int testValue) {
116             staticTestValue = testValue;
117         }
118 
set(int testValue)119         public void set(int testValue) {
120             staticTestValue = testValue;
121         }
122     }
123 
124 }
125