content: /**
   * Copyright 2009 Alexander Kuznetsov
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package org.apache.lucene.morphology.dictionary;
  
  import java.io.BufferedReader;
  import java.io.IOException;
  import java.io.InputStreamReader;
  import java.util.LinkedList;
  import java.util.List;
  
  
  public class RussianAdvSplitterFilter extends WordFilter {
      private String code;
  
      public RussianAdvSplitterFilter(WordProcessor wordProcessor) throws IOException {
          super(wordProcessor);
          code = new BufferedReader(new InputStreamReader(this.getClass().getResourceAsStream("/russian-adv-main-code.txt"), "windows-1251")).readLine();
      }
  
      @Override
      public List<WordCard> transform(WordCard wordCard) {
          LinkedList<WordCard> result = new LinkedList<>();
          result.add(wordCard);
  
          String baseWord = "";
          String canonicalForm = "";
          String canonicalSuffix = "";
          List<FlexiaModel> flexiaModels = new LinkedList<>();
          for (FlexiaModel flexiaModel : wordCard.getWordsForms()) {
              if (flexiaModel.getPrefix().length() > 0) {
                  flexiaModels.add(new FlexiaModel(flexiaModel.getCode(), flexiaModel.getSuffix(), ""));
              }
              if (flexiaModel.getPrefix().length() > 0 && flexiaModel.getCode().equals(code)) {
                  baseWord = flexiaModel.getPrefix() + wordCard.getBase();
                  canonicalForm = flexiaModel.getCode();
                  canonicalSuffix = flexiaModel.getSuffix();
              }
          }
  
          if (baseWord.length() > 0) {
              WordCard wc = new WordCard(canonicalForm, baseWord, canonicalSuffix);
              wc.setWordsForms(flexiaModels);
              result.add(wc);
          }
  
          return result;
      }
  }
  