/*

 * 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

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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.MetadataDefinition;

import jdk.jfr.Name;

import jdk.jfr.SettingDefinition;

import jdk.jfr.SettingDescriptor;

import jdk.jfr.ValueDescriptor;

import jdk.test.lib.Asserts;

import jdk.test.lib.jfr.Events;

import jdk.test.lib.jfr.SimpleSetting;

/*

 * @test

 * @key jfr

 * @library /test/lib

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

 */

public class TestName {

    @MetadataDefinition

    @Name("com.oracle.TestAnnotation")

    @Target({ ElementType.TYPE })

    @Retention(RetentionPolicy.RUNTIME)

    @interface NamedAnnotation {

    }

    @NamedAnnotation

    @Name("com.oracle.TestEvent")

    static class NamedEvent extends Event {

        @Name("testField")

        boolean namedField;

        @SettingDefinition

        @Name("name")

        boolean dummy(SimpleSetting ds) {

            return true;

        }

    }

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

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

        ValueDescriptor testField = t.getField("testField");

        SettingDescriptor setting = getSetting(t, "name");

        AnnotationElement a = Events.getAnnotationByName(t, "com.oracle.TestAnnotation");

        // Check that names are overridden

        Asserts.assertNotNull(testField, "Can't find expected field testField");

        Asserts.assertEquals(t.getName(), "com.oracle.TestEvent", "Incorrect name for event");

        Asserts.assertEquals(a.getTypeName(), "com.oracle.TestAnnotation", "Incorrect name for annotation");

        Asserts.assertEquals(a.getTypeName(), "com.oracle.TestAnnotation", "Incorrect name for annotation");

        Asserts.assertEquals(setting.getName(), "name", "Incorrect name for setting");

        // Check that @Name is persisted

        assertAnnotation(t.getAnnotation(Name.class), "@Name should be persisted on event");

        assertAnnotation(testField.getAnnotation(Name.class), "@Name should be persisted on field");

        assertAnnotation(a.getAnnotation(Name.class), "@Name should be persisted on annotations");

        assertAnnotation(setting.getAnnotation(Name.class), "@Name should be persisted on setting");

    }

    // Can't use assert since the use toString on the object which doesn't work well JFR proxies.

    private static void assertAnnotation(Object annotation,String message) throws Exception {

       if (annotation == null) {

           throw new Exception(message);

       }

    }

    private static SettingDescriptor getSetting(EventType t, String name) {

        for (SettingDescriptor v : t.getSettingDescriptors()) {

            if (v.getName().equals(name)) {

                return v;

            }

        }

        Asserts.fail("Could not find setting with name " + name);

        return null;

    }

}