1 /*
   2  * Copyright (c) 2015, 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.metadata.annotations;
  27 
  28 import java.lang.annotation.ElementType;
  29 import java.lang.annotation.Retention;
  30 import java.lang.annotation.RetentionPolicy;
  31 import java.lang.annotation.Target;
  32 
  33 import jdk.jfr.AnnotationElement;
  34 import jdk.jfr.Event;
  35 import jdk.jfr.EventType;
  36 import jdk.jfr.Label;
  37 import jdk.jfr.MetadataDefinition;
  38 import jdk.jfr.SettingDefinition;
  39 import jdk.jfr.SettingDescriptor;
  40 import jdk.jfr.ValueDescriptor;
  41 import jdk.testlibrary.Asserts;
  42 import jdk.testlibrary.jfr.Events;
  43 import jdk.testlibrary.jfr.SimpleSetting;
  44 
  45 /*
  46  * @test
  47  * @key jfr
  48  * @library /lib/testlibrary
  49  * @run main/othervm jdk.jfr.api.metadata.annotations.TestLabel
  50  */
  51 public class TestLabel {
  52 
  53     @MetadataDefinition
  54     @Label("Annotation Label")
  55     @Target({ ElementType.TYPE })
  56     @Retention(RetentionPolicy.RUNTIME)
  57     @interface AnnotionWithLabel {
  58     }
  59 
  60     @AnnotionWithLabel
  61     @Label("Event Label")
  62     static class LabelEvent extends Event {
  63         @Label("Field Label")
  64         boolean labledField;
  65 
  66         @SettingDefinition
  67         @Label("Setting Label")
  68         boolean dummy(SimpleSetting ds) {
  69             return true;
  70         }
  71     }
  72 
  73     public static void main(String[] args) throws Exception {
  74         // Event
  75         EventType t = EventType.getEventType(LabelEvent.class);
  76         Asserts.assertEquals(t.getLabel(), "Event Label", "Incorrect label for event");
  77 
  78         // Field
  79         ValueDescriptor field = t.getField("labledField");
  80         Asserts.assertEquals(field.getLabel(), "Field Label", "Incorrect label for field");
  81 
  82         // Annotation
  83         AnnotationElement awl = Events.getAnnotationByName(t, AnnotionWithLabel.class.getName());
  84         Label label = awl.getAnnotation(Label.class);
  85         Asserts.assertEquals(label.value(), "Annotation Label", "Incorrect label for annotation");
  86 
  87         // Setting
  88         for (SettingDescriptor v: t.getSettingDescriptors()) {
  89             if (v.getName().equals("dummy")) {
  90                 Label settingLabel = v.getAnnotation(Label.class);
  91                 Asserts.assertEquals(settingLabel.value(), "Setting Label", "Incorrect label for setting");
  92             }
  93         }
  94     }
  95 }