1 /*
   2  * Copyright (c) 2015, 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.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.test.lib.Asserts;
  42 import jdk.test.lib.jfr.Events;
  43 import jdk.test.lib.jfr.SimpleSetting;
  44 
  45 /**
  46  * @test
  47  * @key jfr
  48  *
  49  * @library /lib /
  50  * @run main/othervm jdk.jfr.api.metadata.annotations.TestLabel
  51  */
  52 public class TestLabel {
  53 
  54     @MetadataDefinition
  55     @Label("Annotation Label")
  56     @Target({ ElementType.TYPE })
  57     @Retention(RetentionPolicy.RUNTIME)
  58     @interface AnnotionWithLabel {
  59     }
  60 
  61     @AnnotionWithLabel
  62     @Label("Event Label")
  63     static class LabelEvent extends Event {
  64         @Label("Field Label")
  65         boolean labledField;
  66 
  67         @SettingDefinition
  68         @Label("Setting Label")
  69         boolean dummy(SimpleSetting ds) {
  70             return true;
  71         }
  72     }
  73 
  74     public static void main(String[] args) throws Exception {
  75         // Event
  76         EventType t = EventType.getEventType(LabelEvent.class);
  77         Asserts.assertEquals(t.getLabel(), "Event Label", "Incorrect label for event");
  78 
  79         // Field
  80         ValueDescriptor field = t.getField("labledField");
  81         Asserts.assertEquals(field.getLabel(), "Field Label", "Incorrect label for field");
  82 
  83         // Annotation
  84         AnnotationElement awl = Events.getAnnotationByName(t, AnnotionWithLabel.class.getName());
  85         Label label = awl.getAnnotation(Label.class);
  86         Asserts.assertEquals(label.value(), "Annotation Label", "Incorrect label for annotation");
  87 
  88         // Setting
  89         for (SettingDescriptor v: t.getSettingDescriptors()) {
  90             if (v.getName().equals("dummy")) {
  91                 Label settingLabel = v.getAnnotation(Label.class);
  92                 Asserts.assertEquals(settingLabel.value(), "Setting Label", "Incorrect label for setting");
  93             }
  94         }
  95     }
  96 }