test/jdk/jdk/jfr/api/consumer/TestRecordedEvent.java

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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package jdk.jfr.api.consumer;

import java.util.List;

import jdk.jfr.Description;
import jdk.jfr.Event;
import jdk.jfr.Recording;
import jdk.jfr.ValueDescriptor;
import jdk.jfr.consumer.RecordedClass;
import jdk.jfr.consumer.RecordedClassLoader;
import jdk.jfr.consumer.RecordedEvent;
import jdk.test.lib.Asserts;
import jdk.test.lib.jfr.Events;

/**
 * @test
 * @summary Verifies the methods of the RecordedEvent
 * @key jfr
 * @requires vm.hasJFR
 * @library /test/lib
 * @run main/othervm jdk.jfr.api.consumer.TestRecordedEvent
 */
public class TestRecordedEvent {

    static class MyClass {
    }

    static class TestEvent extends Event {

        @Description("MyField")
        Class<?> clzField = String.class;
        int intField;
        String stringField = "myString";
        Class<?> myClass = MyClass.class;
    }

    public static void main(String[] args) throws Throwable {
        Recording r = new Recording();
        r.start();
        TestEvent t = new TestEvent();
        t.commit();
        r.stop();
        List<RecordedEvent> events = Events.fromRecording(r);
        Events.hasEvents(events);

        Asserts.assertEquals(events.size(), 1);

        RecordedEvent event = events.get(0);

        List<ValueDescriptor> descriptors = event.getFields();

        System.out.println("Descriptors");
        for (ValueDescriptor descriptor : descriptors) {
            System.out.println(descriptor.getName());
            System.out.println(descriptor.getTypeName());
        }
        System.out.println("Descriptors end");

        Object recordedClass = event.getValue("clzField");
        Asserts.assertTrue(recordedClass instanceof RecordedClass, "Expected Recorded Class got " + recordedClass);

        Object recordedInt = event.getValue("intField");
        Asserts.assertTrue(recordedInt instanceof Integer);

        Object recordedString = event.getValue("stringField");
        System.out.println("recordedString class: " + recordedString.getClass());
        Asserts.assertTrue(recordedString instanceof String);

        Object myClass = event.getValue("myClass");
        Asserts.assertTrue(myClass instanceof RecordedClass, "Expected Recorded Class got " + recordedClass);

        RecordedClass myRecClass = (RecordedClass) myClass;
        Asserts.assertEquals(MyClass.class.getName(), myRecClass.getName(), "Got " + myRecClass.getName());

        Object recordedClassLoader = myRecClass.getValue("classLoader");
        Asserts.assertTrue(recordedClassLoader instanceof RecordedClassLoader, "Expected Recorded ClassLoader got " + recordedClassLoader);

        RecordedClassLoader myRecClassLoader = (RecordedClassLoader)recordedClassLoader;
        ClassLoader cl = MyClass.class.getClassLoader();
        Asserts.assertEquals(cl.getClass().getName(), myRecClassLoader.getType().getName(), "Expected Recorded ClassLoader type to equal loader type");

        Asserts.assertNotNull(myRecClass.getModifiers());
    }

}