208 lines
7.4 KiB
Java
208 lines
7.4 KiB
Java
/*
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* Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package org.openjdk.bench.java.net;
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import org.openjdk.jmh.annotations.Benchmark;
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import org.openjdk.jmh.annotations.BenchmarkMode;
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import org.openjdk.jmh.annotations.Fork;
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import org.openjdk.jmh.annotations.Measurement;
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import org.openjdk.jmh.annotations.Mode;
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import org.openjdk.jmh.annotations.OutputTimeUnit;
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import org.openjdk.jmh.annotations.Param;
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import org.openjdk.jmh.annotations.Scope;
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import org.openjdk.jmh.annotations.Setup;
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import org.openjdk.jmh.annotations.State;
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import org.openjdk.jmh.annotations.Warmup;
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import org.openjdk.jmh.infra.Blackhole;
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import java.io.UnsupportedEncodingException;
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import java.net.URLDecoder;
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import java.nio.charset.StandardCharsets;
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import java.util.Random;
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import java.util.concurrent.TimeUnit;
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/**
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* Tests java.net.URLEncoder.encode and Decoder.decode.
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*/
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@BenchmarkMode(Mode.AverageTime)
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@OutputTimeUnit(TimeUnit.MILLISECONDS)
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@State(Scope.Thread)
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@Warmup(iterations = 5, time = 1)
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@Measurement(iterations = 5, time = 1)
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@Fork(value = 3)
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public class URLEncodeDecode {
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private static final int COUNT = 1024;
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@Param("1024")
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public int maxLength;
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/**
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* Percentage of strings that will remain unchanged by an encoding/decoding (0-100)
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*/
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@Param({"0", "75", "100"})
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public int unchanged;
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/**
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* Percentage of chars in changed strings that cause encoding/decoding to happen (0-100)
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*/
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@Param({"6"})
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public int encodeChars;
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public String[] testStringsEncode;
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public String[] testStringsDecode;
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public String[] toStrings;
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@Setup()
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public void setupStrings() {
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char[] encodeTokens = new char[] { '[', '(', ' ', '\u00E4', '\u00E5', '\u00F6', ')', '='};
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char[] tokens = new char[('Z' - 'A' + 1) + ('z' - 'a' + 1) + ('9' - '0' + 1) + 4];
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int n = 0;
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for (char c = '0'; c <= '9'; c++) {
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tokens[n++] = c;
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}
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for (char c = 'A'; c <= 'Z'; c++) {
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tokens[n++] = c;
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}
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for (char c = 'a'; c <= 'z'; c++) {
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tokens[n++] = c;
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}
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tokens[n++] = '-';
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tokens[n++] = '_';
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tokens[n++] = '.';
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tokens[n] = '*';
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Random r = new Random(3);
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testStringsEncode = new String[COUNT];
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testStringsDecode = new String[COUNT];
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toStrings = new String[COUNT];
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for (int i = 0; i < COUNT; i++) {
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int l = r.nextInt(maxLength);
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boolean needEncoding = r.nextInt(100) >= unchanged;
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StringBuilder sb = new StringBuilder();
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boolean hasEncoded = false;
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for (int j = 0; j < l; j++) {
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if (needEncoding && r.nextInt(100) < encodeChars) {
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addToken(encodeTokens, r, sb);
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hasEncoded = true;
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} else {
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addToken(tokens, r, sb);
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}
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}
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if (needEncoding && !hasEncoded) {
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addToken(encodeTokens, r, sb);
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}
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testStringsEncode[i] = sb.toString();
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}
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int countUnchanged = 0;
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for (String s : testStringsEncode) {
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if (s.equals(java.net.URLEncoder.encode(s, StandardCharsets.UTF_8))) {
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countUnchanged++;
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} else {
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if (unchanged == 100) {
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System.out.println("Unexpectedly needs encoding action: ");
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System.out.println("\t" + s);
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System.out.println("\t" + java.net.URLEncoder.encode(s, StandardCharsets.UTF_8));
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}
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}
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}
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System.out.println();
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System.out.println("Generated " + testStringsEncode.length + " encodable strings, " + countUnchanged + " of which does not need encoding action");
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for (int i = 0; i < COUNT; i++) {
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int l = r.nextInt(maxLength);
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boolean needDecoding = r.nextInt(100) >= unchanged;
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StringBuilder sb = new StringBuilder();
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boolean hasDecoded = false;
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for (int j = 0; j < l; j++) {
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if (needDecoding && r.nextInt(100) < encodeChars) {
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addDecodableChar(tokens, r, sb);
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hasDecoded = true;
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} else {
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addToken(tokens, r, sb);
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}
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}
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if (needDecoding && !hasDecoded) {
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addDecodableChar(tokens, r, sb);
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}
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testStringsDecode[i] = sb.toString();
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}
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countUnchanged = 0;
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for (String s : testStringsDecode) {
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if (s.equals(java.net.URLDecoder.decode(s, StandardCharsets.UTF_8))) {
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countUnchanged++;
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} else {
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if (unchanged == 100) {
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System.out.println("Unexpectedly needs encoding action: ");
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System.out.println("\t" + s);
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System.out.println("\t" + java.net.URLDecoder.decode(s, StandardCharsets.UTF_8));
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}
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}
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}
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System.out.println("Generated " + testStringsDecode.length + " decodable strings, " + countUnchanged + " of which does not need decoding action");
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}
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private static void addToken(char[] tokens, Random r, StringBuilder sb) {
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int c = r.nextInt(tokens.length);
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sb.append(tokens[c]);
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}
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private static void addDecodableChar(char[] tokens, Random r, StringBuilder sb) {
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if (r.nextInt(100) < 15) {
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sb.append('+'); // exercise '+' -> ' ' decoding paths.
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} else {
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sb.append("%").append(tokens[r.nextInt(16)]).append(tokens[r.nextInt(16)]);
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}
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}
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@Benchmark
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public void testEncodeUTF8(Blackhole bh) throws UnsupportedEncodingException {
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for (String s : testStringsEncode) {
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bh.consume(java.net.URLEncoder.encode(s, StandardCharsets.UTF_8));
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}
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}
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@Benchmark
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public void testDecodeUTF8(Blackhole bh) throws UnsupportedEncodingException {
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for (String s : testStringsDecode) {
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bh.consume(URLDecoder.decode(s, StandardCharsets.UTF_8));
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}
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}
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@Benchmark
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public void testEncodeLatin1(Blackhole bh) throws UnsupportedEncodingException {
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for (String s : testStringsEncode) {
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bh.consume(java.net.URLEncoder.encode(s, StandardCharsets.ISO_8859_1));
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}
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}
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@Benchmark
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public void testDecodeLatin1(Blackhole bh) throws UnsupportedEncodingException {
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for (String s : testStringsDecode) {
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bh.consume(URLDecoder.decode(s, StandardCharsets.ISO_8859_1));
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}
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}
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}
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