/*

 * Copyright (c) 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.

 *

 * 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.

 */

import java.lang.reflect.Constructor;

import java.lang.reflect.Field;

import java.lang.reflect.Method;

import java.lang.reflect.Modifier;

import java.util.concurrent.Callable;

/**

 * Each nested class tests a member of a specific access.

 *

 * Caller class is cached when setAccessible is not used to suppress the access

 * check and only access allowed.  If not accessible, caller class is not cached.

 */

public class AccessTest {

    public static class PublicConstructor implements Callable<Object> {

        public Object call() throws Exception {

            Constructor c = Members.class.getConstructor();

            return c.newInstance();

        }

    }

    public static class PublicMethod extends Members implements Callable<Void> {

        public Void call() throws Exception {

            Method m = Members.class.getDeclaredMethod("publicMethod");

            m.invoke(new PublicMethod());

            return null;

        }

    }

    public static class ProtectedMethod extends Members implements Callable<Void> {

        public Void call() throws Exception {

            Method m = Members.class.getDeclaredMethod("protectedMethod");

            m.invoke(new ProtectedMethod());

            return null;

        }

    }

    /*

     * private field is not accessible.  So caller class is not cached.

     */

    public static class PrivateMethod extends Members implements Callable<Void> {

        public Void call() throws Exception {

            Method m = Members.class.getDeclaredMethod("privateMethod");

            try {

                m.invoke(new ProtectedMethod());

            } catch (IllegalAccessException e) {

            }

            return null;

        }

    }

    public static class PublicField extends Members implements Callable<Void> {

        public Void call() throws Exception {

            Field f = Members.class.getDeclaredField("publicField");

            f.get(new PublicField());

            return null;

        }

    }

    public static class ProtectedField extends Members implements Callable<Void> {

        public Void call() throws Exception {

            Field f = Members.class.getDeclaredField("protectedField");

            f.get(new ProtectedField());

            return null;

        }

    }

    /*

     * private field is not accessible.  So caller class is not cached.

     */

    public static class PrivateField implements Callable<Void> {

        public Void call() throws Exception {

            Field f = Members.class.getDeclaredField("privateField");

            try {

                f.get(new Members());

            } catch (IllegalAccessException e) {

            }

            return null;

        }

    }

    /*

     * Validate final field

     */

    public static class FinalField implements Callable<Void> {

        final Field f;

        final boolean isStatic;

        public FinalField(String name) throws Exception {

            this.f = Members.class.getDeclaredField(name);

            this.isStatic = Modifier.isStatic(f.getModifiers());

            if (!Modifier.isFinal(f.getModifiers())) {

                throw new RuntimeException("not a final field");

            }

        }

        public Void call() throws Exception {

            Members obj = isStatic ? null : new Members();

            try {

                f.set(obj, 20);

            } catch (IllegalAccessException e) {

            }

            return null;

        }

    }

    public static class PublicFinalField extends FinalField {

        public PublicFinalField() throws Exception {

            super("publicFinalField");

        }

    }

    public static class PrivateFinalField extends FinalField {

        public PrivateFinalField() throws Exception {

            super("privateFinalField");

        }

    }

    public static class PublicStaticFinalField extends FinalField {

        public PublicStaticFinalField() throws Exception {

            super("publicStaticFinalField");

        }

    }

    public static class PrivateStaticFinalField extends FinalField {

        public PrivateStaticFinalField() throws Exception {

            super("privateStaticFinalField");

        }

    }

}