/*

 * Copyright (c) 2015, 2018, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

package jdk.jfr.api.metadata.annotations;

import java.lang.annotation.ElementType;

import java.lang.annotation.Retention;

import java.lang.annotation.RetentionPolicy;

import java.lang.annotation.Target;

import jdk.jfr.AnnotationElement;

import jdk.jfr.Event;

import jdk.jfr.EventType;

import jdk.jfr.Label;

import jdk.jfr.MetadataDefinition;

import jdk.jfr.Relational;

import jdk.jfr.ValueDescriptor;

import jdk.test.lib.Asserts;

import jdk.test.lib.jfr.Events;

/*

 * @test

 * @key jfr

 * @library /test/lib

 * @run main/othervm jdk.jfr.api.metadata.annotations.TestRelational

 */

public class TestRelational {

    @MetadataDefinition

    @Label("User Id")

    @Relational

    @Target({ ElementType.FIELD })

    @Retention(RetentionPolicy.RUNTIME)

    @interface UserId {

    }

    static class UserEvent extends Event {

        @UserId

        String id;

    }

    public static void main(String[] args) throws Exception {

        EventType t = EventType.getEventType(UserEvent.class);

        ValueDescriptor field = t.getField("id");

        AnnotationElement userId = Events.getAnnotation(field, UserId.class);

        Relational r = userId.getAnnotation(Relational.class);

        Asserts.assertTrue(r != null, "Expected relational annotation to have annotation @Relational");

    }

}