/*

 * Copyright (c) 2009, 2012, 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.util.*;

import java.nio.*;

import java.nio.charset.*;

import java.util.concurrent.*;

import java.util.regex.Pattern;

public class StrCodingBenchmarkDB extends StrCodingBenchmark {

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

        final int itrs = Integer.getInteger("iterations", 100000);

        //final int itrs = Integer.getInteger("iterations", 12);

        final int size       = Integer.getInteger("size", 2048);

        final int subsize    = Integer.getInteger("subsize", 128);

        final int maxchar    = Integer.getInteger("maxchar", 128);

        final String regex = System.getProperty("filter");

        final Pattern filter = (regex == null) ? null : Pattern.compile(regex);

        final boolean useSecurityManager = Boolean.getBoolean("SecurityManager");

        if (useSecurityManager)

            System.setSecurityManager(new PermissiveSecurityManger());

        final Random rnd = new Random();

        String[] csns = new String[] {

            "Big5",

            "Johab",

            "EUC_CN",

            "EUC_KR",

            "MS932",

            "MS936",

            "MS949",

            "MS950",

            "GBK",

            "Big5_HKSCS",

            "Big5_HKSCS_2001",

            "Big5_Solaris",

            "MS950_HKSCS",

            "MS950_HKSCS_XP",

            "IBM1364",

            "IBM1381",

            "IBM1383",

            "IBM930",

            "IBM933",

            "IBM935",

            "IBM937",

            "IBM939",

            "IBM942",

            "IBM943",

            "IBM948",

            "IBM949",

            "IBM950",

            "IBM970",

        };

        ArrayList<long[]> sum = new ArrayList<>();

        for (final String csn : csns) {

            final Charset cs = Charset.forName(csn);

            List<Integer> cps = new ArrayList<>(0x4000);

            int off = 0;

            int cp = 0;

            int n = 0;

            CharsetEncoder enc = cs.newEncoder();

            while (cp < 0x10000 && n < cps.size()) {

                if (enc.canEncode((char)cp)) {

                    cps.add(cp);

                    n++;

                }

                cp++;

            }

            Collections.shuffle(cps);

            char[] ca = new char[cps.size()];

            for (int i = 0; i < cps.size(); i++)

                ca[i] = (char)(int)cps.get(i);

            System.out.printf("%n--------%s---------%n", csn);

            for (int sz = 8; sz <= 2048; sz *= 2) {

                System.out.printf("   [len=%d]%n", sz);

                final char[] chars  = Arrays.copyOf(ca, sz);

                final String str = new String(chars);

                final byte[] bs  = str.getBytes(cs);

                Job[] jobs = {

                    new Job("String decode: csn") {

                    public void work() throws Throwable {

                        for (int i = 0; i < itrs; i++)

                            new String(bs, csn);

                    }},

                    new Job("String decode: cs") {

                    public void work() throws Throwable {

                        for (int i = 0; i < itrs; i++)

                            new String(bs, cs);

                    }},

                    new Job("String encode: csn") {

                    public void work() throws Throwable {

                        for (int i = 0; i < itrs; i++)

                            str.getBytes(csn);

                    }},

                    new Job("String encode: cs") {

                    public void work() throws Throwable {

                        for (int i = 0; i < itrs; i++)

                            str.getBytes(cs);

                    }},

                };

                sum.add(time(jobs));

            }

        }

    }

}