code: /* 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.chunking;
  
  import org.apache.commons.lang3.StringUtils;
  import org.jetbrains.annotations.Nullable;
  import org.languagetool.AnalyzedTokenReadings;
  
  import java.util.List;
  import java.util.Objects;
  
  /**
   * @since 2.9 / 5.0
   */
  public class ChunkTaggedToken {
  
    private final String token;
    private final List<ChunkTag> chunkTags;
    private final AnalyzedTokenReadings readings;
  
    /**
     * @param readings may be null, caused by differences in tokenization we don't always have a 1:1 mapping
     */
    public ChunkTaggedToken(String token, List<ChunkTag> chunkTags, AnalyzedTokenReadings readings) {
      this.token = Objects.requireNonNull(token);
      this.chunkTags = Objects.requireNonNull(chunkTags);
      this.readings = readings;
    }
  
    public String getToken() {
      return token;
    }
  
    public List<ChunkTag> getChunkTags() {
      return chunkTags;
    }
  
    /**
     * @return readings or {@code null}
     */
    @Nullable
    public AnalyzedTokenReadings getReadings() {
      return readings;
    }
  
    @Override
    public String toString() {
      return token + '/' + StringUtils.join(chunkTags, ",");
    }
  }
  