1 /*
   2  * Copyright (c) 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.valuedescriptor;
  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.ContentType;
  34 import jdk.jfr.Event;
  35 import jdk.jfr.EventType;
  36 import jdk.jfr.MetadataDefinition;
  37 import jdk.jfr.ValueDescriptor;
  38 import jdk.test.lib.Asserts;
  39 
  40 /**
  41  * @test
  42  * @summary Test ValueDescriptor.getContentType()
  43  * @key jfr
  44  *
  45  * @library /lib /
  46  * @run main/othervm jdk.jfr.api.metadata.valuedescriptor.TestValueDescriptorContentType
  47  */
  48 public class TestValueDescriptorContentType {
  49 
  50     @MetadataDefinition
  51     @ContentType
  52     @Retention(RetentionPolicy.RUNTIME)
  53     @Target({ ElementType.FIELD, ElementType.TYPE, ElementType.METHOD })
  54     static public @interface Hawaiian {
  55     }
  56 
  57     @MetadataDefinition
  58     @Retention(RetentionPolicy.RUNTIME)
  59     @Target({ ElementType.FIELD, ElementType.TYPE })
  60     static public @interface NotContentType {
  61     }
  62 
  63     @SuppressWarnings("unused")
  64     private static class AlohaEvent extends Event {
  65         @Hawaiian
  66         String greeting;
  67 
  68         String missing;
  69 
  70         @NotContentType
  71         String otherAnnotation;
  72     }
  73 
  74     public static void main(String[] args) throws Throwable {
  75         EventType type = EventType.getEventType(AlohaEvent.class);
  76 
  77         // check field annotation on event value
  78         ValueDescriptor filter = type.getField("greeting");
  79         Asserts.assertEquals(filter.getContentType(), Hawaiian.class.getName());
  80 
  81         // check field annotation with missing content type
  82         ValueDescriptor missing = type.getField("missing");
  83         Asserts.assertEquals(missing.getContentType(), null);
  84 
  85         // check field annotation with annotation but not content type
  86         ValueDescriptor otherAnnotation = type.getField("otherAnnotation");
  87         Asserts.assertEquals(otherAnnotation.getContentType(), null);
  88     }
  89 
  90 }