| /* |
| * Copyright (c) 2011, 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.*; |
| |
| public class StrCodingBenchmarkUTF8 { |
| |
| public static void main(String[] args) throws Throwable { |
| |
| final int itrs = Integer.getInteger("iterations", 100000); |
| final int size = 2048; |
| final int subsize = Integer.getInteger("subsize", 128); |
| final Random rnd = new Random(); |
| final int maxchar = 0x7f; |
| |
| Charset charset = Charset.forName("UTF-8"); |
| final String csn = charset.name(); |
| final Charset cs = charset; |
| |
| int[] starts = new int[] { 0, 0x80, 0x800, 0x10000}; |
| for (int nb = 1; nb <= 4; nb++) { |
| |
| final CharsetEncoder enc = cs.newEncoder(); |
| |
| char[] cc = new char[size]; |
| int i = 0; |
| while (i < size - 3) { |
| i += Character.toChars(starts[nb - 1] + rnd.nextInt(maxchar), cc, i); |
| } |
| |
| final String string = new String(cc); |
| final byte[] bytes = string.getBytes(cs); |
| |
| System.out.printf("%n--------%s[nb=%d]---------%n", csn, nb); |
| int sz = 12; |
| while (sz < size) { |
| System.out.printf(" [len=%d]%n", sz); |
| final byte[] bs = Arrays.copyOf(bytes, sz); |
| final String str = new String(bs, csn); |
| StrCodingBenchmark.Job[] jobs = { |
| new StrCodingBenchmark.Job("String decode: csn") { |
| public void work() throws Throwable { |
| for (int i = 0; i < itrs; i++) |
| new String(bs, csn); |
| }}, |
| |
| new StrCodingBenchmark.Job("String decode: cs") { |
| public void work() throws Throwable { |
| for (int i = 0; i < itrs; i++) |
| new String(bs, cs); |
| }}, |
| |
| new StrCodingBenchmark.Job("String encode: csn") { |
| public void work() throws Throwable { |
| for (int i = 0; i < itrs; i++) |
| str.getBytes(csn); |
| }}, |
| |
| new StrCodingBenchmark.Job("String encode: cs") { |
| public void work() throws Throwable { |
| for (int i = 0; i < itrs; i++) |
| str.getBytes(cs); |
| }}, |
| }; |
| StrCodingBenchmark.time(StrCodingBenchmark.filter(null, jobs)); |
| sz <<= 1; |
| } |
| } |
| } |
| } |