/* LanguageTool, a natural language style checker
* Copyright (C) 2013 Daniel Naber (http://www.danielnaber.de)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
* USA
*/
package org.languagetool.rules.patterns;
import org.languagetool.JLanguageTool;
import org.languagetool.Language;
import org.languagetool.MultiThreadedJLanguageTool;
import org.languagetool.rules.RuleMatch;
import org.languagetool.tools.StringTools;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.util.List;
import java.util.Random;
/**
* Check performance for shorts text, like in some multi-threaded use-cases,
* where the language object is created once and the JLanguageTool object is
* re-created for every request.
* Not a unit test, for interactive use only.
*/
final class PerformanceTest2 {
private static final int RUNS = 100;
private static final int SKIP = 3;
private static final int MAX_TEXT_LENGTH = 150;
private void run(String languageCode, File textFile) throws IOException {
String text = StringTools.readStream(new FileInputStream(textFile), "utf-8");
System.out.println("Text length: " + text.length());
Random rnd = new Random(42);
Language language = Language.getLanguageForShortName(languageCode);
long totalTime = 0;
for (int i = 0; i < RUNS; i++) {
int beginIndex = rnd.nextInt(text.length());
int endIndex = Math.min(beginIndex + MAX_TEXT_LENGTH, text.length()-1);
String subText = text.substring(beginIndex, endIndex);
long startTime = System.currentTimeMillis();
JLanguageTool langTool = new MultiThreadedJLanguageTool(language);
langTool.activateDefaultPatternRules();
List<RuleMatch> matches = langTool.check(subText);
long runTime = System.currentTimeMillis() - startTime;
if (i >= SKIP) {
totalTime += runTime;
System.out.println("Time: " + runTime + "ms (" + matches.size() + " matches)");
} else {
System.out.println("Time: " + runTime + "ms (" + matches.size() + " matches) - skipped because of warm-up");
}
}
System.out.println("Avg. Time: " + (float)totalTime/RUNS);
}
public static void main(String[] args) throws IOException {
if (args.length != 2) {
System.out.println("Usage: " + PerformanceTest2.class.getSimpleName() + " <languageCode> <text_file>");
System.exit(1);
}
PerformanceTest2 test = new PerformanceTest2();
File textFile = new File(args[1]);
test.run(args[0], textFile);
}
}