code: /* LanguageTool, a natural language style checker 
   * Copyright (C) 2016 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.ngrams;
  
  import org.languagetool.languagemodel.LuceneSingleIndexLanguageModel;
  
  import java.io.File;
  import java.util.Arrays;
  import java.util.HashMap;
  import java.util.List;
  import java.util.Map;
  
  public class FakeLanguageModel extends LuceneSingleIndexLanguageModel {
  
    static Map<String,Integer> map = new HashMap<>();
  
    public FakeLanguageModel(Map<String,Integer> map) {
      super(3);
      FakeLanguageModel.map = map;
    }
    
    public FakeLanguageModel() {
      super(3);
      map.put("_START_ There", 10);
      map.put("_START_ Their", 1);
      // for "Their are new ideas to explore":
      map.put("There are", 10);
      map.put("There are new", 5);
      map.put("Their are", 2);
      map.put("Their are new", 1);
      // for "Why is there car broken again?"
      map.put("Why is", 50);
      map.put("Why is there", 5);
      map.put("Why is their", 5);
      map.put("their car", 11);
      map.put("their car broken", 2);
      // for um/im (German):
      map.put("_START_ Um", 10);
      map.put("_START_ Im", 1);
      map.put("_START_ Um dabei", 20);
      map.put("_START_ Im dabei", 0);
    }
  
    @Override
    public void doValidateDirectory(File topIndexDir) {
    }
  
    @Override
    public long getCount(List<String> tokens) {
      Integer count = map.get(String.join(" ", tokens));
      return count == null ? 0 : count;
    }
  
    @Override
    public long getCount(String token1) {
      return getCount(Arrays.asList(token1));
    }
  
    @Override
    public long getTotalTokenCount() {
      int sum = 0;
      for (int val : map.values()) {
        sum += val;
      }
      return sum;
    }
  
    @Override
    public void close() {}
  
  }
  