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.ContentType;
  35 import jdk.jfr.Event;
  36 import jdk.jfr.EventType;
  37 import jdk.jfr.MetadataDefinition;
  38 import jdk.jfr.Timespan;
  39 import jdk.test.lib.Asserts;
  40 import jdk.test.lib.jfr.Events;
  41 
  42 /**
  43  * @test
  44  * @key jfr
  45  *
  46  * @library /lib /
  47  * @run main/othervm jdk.jfr.api.metadata.annotations.TestContentType
  48  */
  49 public class TestContentType {
  50     @ContentType
  51     @MetadataDefinition
  52     @Target({ ElementType.FIELD })
  53     @Retention(RetentionPolicy.RUNTIME)
  54     @interface Temperature {
  55     }
  56 
  57     static class SunnyDay extends Event {
  58         String day;
  59         @Temperature
  60         float max;
  61         @Timespan
  62         float hours;
  63     }
  64 
  65     public static void main(String[] args) throws Exception {
  66 
  67         EventType t = EventType.getEventType(SunnyDay.class);
  68         AnnotationElement aMax = Events.getAnnotation(t.getField("max"), Temperature.class);
  69         ContentType cMax = aMax.getAnnotation(ContentType.class);
  70         if (cMax == null) {
  71             throw new Exception("Expected Temperature annotation for field 'max' to have meta annotation ContentType");
  72         }
  73         AnnotationElement aHours = Events.getAnnotation(t.getField("hours"), Timespan.class);
  74         ContentType cHours = aHours.getAnnotation(ContentType.class);
  75         Asserts.assertTrue(cHours != null, "Expected Timespan annotation for field 'hours' to have meta annotation ContentType");
  76     }
  77 }