1 /*
   2  * Copyright (c) 2018, 2019, 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.consumer;
  27 
  28 import java.util.List;
  29 
  30 import jdk.jfr.Event;
  31 import jdk.jfr.Recording;
  32 import jdk.jfr.consumer.RecordedClass;
  33 import jdk.jfr.consumer.RecordedEvent;
  34 import jdk.jfr.consumer.RecordedThread;
  35 import jdk.testlibrary.Asserts;
  36 import jdk.testlibrary.jfr.Events;
  37 
  38 /*
  39  * @test
  40  * @key jfr
  41  * @library /lib/testlibrary
  42  * @run main/othervm jdk.jfr.api.consumer.TestFieldAccess
  43  */
  44 public class TestFieldAccess {
  45 
  46     private static class MyEvent extends Event {
  47         String stringField = "Hello";
  48         int intField = 4711;
  49         long longField = 4712L;
  50         short shortField = (short)67;
  51         double doubleField = Double.NaN;
  52         float floatField = Float.MIN_VALUE;
  53         boolean booleanField = false;
  54         Thread threadField = Thread.currentThread();
  55         Class<?> classField = MyEvent.class;
  56     }
  57 
  58     public static void main(String[] args) throws Throwable {
  59         Recording r = new Recording();
  60         r.enable(MyEvent.class);
  61         r.start();
  62         MyEvent myEvent = new MyEvent();
  63         myEvent.commit();
  64         r.stop();
  65         List<RecordedEvent> events = Events.fromRecording(r);
  66         if (events.isEmpty()) {
  67                throw new AssertionError("Expected at least one event");
  68         }
  69         Events.hasEvents(events);
  70         RecordedEvent event = events.get(0);
  71         testHasField(event);
  72         testGetField(event, myEvent);
  73     }
  74 
  75     private static void testGetField(RecordedEvent event, MyEvent myEvent) {
  76         String stringField = event.getValue("stringField");
  77         Asserts.assertEquals(stringField, myEvent.stringField);
  78 
  79         int intField = event.getValue("intField");
  80         Asserts.assertEquals(intField, myEvent.intField);
  81 
  82         long longField = event.getValue("longField");
  83         Asserts.assertEquals(longField, myEvent.longField);
  84 
  85         short shortField = event.getValue("shortField");
  86         Asserts.assertEquals(shortField, myEvent.shortField);
  87 
  88         double doubleField = event.getValue("doubleField");
  89         Asserts.assertEquals(doubleField, myEvent.doubleField);
  90 
  91         float floatField = event.getValue("floatField");
  92         Asserts.assertEquals(floatField, myEvent.floatField);
  93 
  94         boolean booleanField = event.getValue("booleanField");
  95         Asserts.assertEquals(booleanField, myEvent.booleanField);
  96 
  97         RecordedThread threadField = event.getValue("eventThread");
  98         Asserts.assertEquals(threadField.getJavaName(), myEvent.threadField.getName());
  99         String threadGroupName = event.getValue("eventThread.group.name");
 100         Asserts.assertEquals(threadField.getThreadGroup().getName(), threadGroupName);
 101 
 102         RecordedClass  classField = event.getValue("classField");
 103         Asserts.assertEquals(classField.getName(), myEvent.classField.getName());
 104         String className = event.getValue("classField.name");
 105         Asserts.assertEquals(classField.getName(), className.replace("/", "."));
 106 
 107 
 108         try {
 109             event.getValue("doesnotexist");
 110         } catch (IllegalArgumentException iae) {
 111             // as expected
 112         }
 113 
 114         try {
 115             event.getValue("classField.doesnotexist");
 116         } catch (IllegalArgumentException iae) {
 117             // as expected
 118         }
 119 
 120         try {
 121             event.getValue(null);
 122         } catch (NullPointerException npe) {
 123             // as expected
 124         }
 125     }
 126 
 127     private static void testHasField(RecordedEvent event) {
 128         System.out.println(event);
 129         Asserts.assertTrue(event.hasField("stringField"));
 130         Asserts.assertTrue(event.hasField("intField"));
 131         Asserts.assertTrue(event.hasField("longField"));
 132         Asserts.assertTrue(event.hasField("shortField"));
 133         Asserts.assertTrue(event.hasField("doubleField"));
 134         Asserts.assertTrue(event.hasField("floatField"));
 135         Asserts.assertTrue(event.hasField("threadField"));
 136         Asserts.assertTrue(event.hasField("classField"));
 137         Asserts.assertTrue(event.hasField("classField.name"));
 138         Asserts.assertTrue(event.hasField("eventThread"));
 139         Asserts.assertTrue(event.hasField("eventThread.group.name"));
 140         Asserts.assertTrue(event.hasField("startTime"));
 141         Asserts.assertTrue(event.hasField("stackTrace"));
 142         Asserts.assertTrue(event.hasField("duration"));
 143         Asserts.assertFalse(event.hasField("doesNotExist"));
 144         Asserts.assertFalse(event.hasField("classField.doesNotExist"));
 145         Asserts.assertFalse(event.hasField(""));
 146         try {
 147             event.hasField(null);
 148         } catch (NullPointerException npe) {
 149             // as expected
 150         }
 151     }
 152 }