code: /* LanguageTool, a natural language style checker
   * Copyright (C) 2015 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.Language;
  import org.languagetool.Languages;
  import org.languagetool.MultiThreadedJLanguageTool;
  import org.languagetool.rules.RuleMatch;
  
  import java.io.IOException;
  import java.util.List;
  
  /**
   * Check startup performance by "checking" the empty string for
   * each language.
   * Not a unit test, for interactive use only.
   */
  final class StartupTimePerformanceTest {
  
    private static final int RUNS = 100;
    private static final int SKIP = 5;
    
    private void run() throws IOException {
      List<Language> languages = Languages.get();
      for (Language language : languages) {
        run(language);
      }
    }
  
    private void run(Language language) throws IOException {
      long totalTime = 0;
      for (int i = 0; i < RUNS; i++) {
        long startTime = System.currentTimeMillis();
        MultiThreadedJLanguageTool lt = new MultiThreadedJLanguageTool(language);
        List<RuleMatch> matches = lt.check("");
        if (matches.size() > 0) {
          throw new RuntimeException("Got matches on empty input for " + language + ": " + matches);
        }
        long runTime = System.currentTimeMillis() - startTime;
        lt.shutdown();
        if (i >= SKIP) {
          totalTime += runTime;
        }
        //System.out.println(runTime + "ms");
      }
      System.out.println(language.getShortCodeWithCountryAndVariant() + ": avg. Time: " + (float)totalTime/RUNS + "ms");
    }
  
    public static void main(String[] args) throws IOException {
      StartupTimePerformanceTest test = new StartupTimePerformanceTest();
      test.run();
      //test.run(new GermanyGerman());
    }
  
  }
  