/*

 * Copyright (c) 2014 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.

 */

package org.openjdk.bench.java.io;

import org.openjdk.bench.java.io.BlackholedOutputStream;

import org.openjdk.jmh.annotations.Benchmark;

import org.openjdk.jmh.annotations.BenchmarkMode;

import org.openjdk.jmh.annotations.Mode;

import org.openjdk.jmh.annotations.OutputTimeUnit;

import org.openjdk.jmh.annotations.Scope;

import org.openjdk.jmh.annotations.Setup;

import org.openjdk.jmh.annotations.State;

import org.openjdk.jmh.annotations.TearDown;

import org.openjdk.jmh.infra.Blackhole;

import java.io.IOException;

import java.io.ObjectOutputStream;

import java.io.ObjectStreamException;

import java.io.Serializable;

import java.util.concurrent.TimeUnit;

@BenchmarkMode(Mode.AverageTime)

@OutputTimeUnit(TimeUnit.NANOSECONDS)

@State(Scope.Thread)

public class SerializationWriteReplace {

    private BlackholedOutputStream bos;

    private ObjectOutputStream os;

    @Setup

    public void setupStreams(Blackhole bh) throws IOException {

        bos = new BlackholedOutputStream(bh);

        os = new ObjectOutputStream(bos);

    }

    @TearDown

    public void downStreams() throws IOException {

        os.close();

        bos.close();

        os = null;

        bos = null;

    }

    @Benchmark

    public void writeReplace() throws IOException, ClassNotFoundException {

        os.writeObject(new Class2());

    }

    public abstract static class Base implements Serializable {

        private static final long serialVersionUID = 1L;

    }

    public static class Class1 extends Base {

        private static final long serialVersionUID = 2L;

    }

    public static class Class2 extends Class1 {

        private static final long serialVersionUID = 3L;

        Object writeReplace() throws ObjectStreamException {

            return new Class3();

        }

    }

    public static class Class3 extends Base {

        private static final long serialVersionUID = 4L;

        private String tuto = "tuto";

        private byte b = (byte) 0xff;

    }

}