content: /**
   * Copyright (C) 2024 AIDC-AI
   *
   * 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 com.alibaba.langengine.core.textsplitter.py;
  
  import com.alibaba.fastjson.JSON;
  import com.alibaba.langengine.core.textsplitter.TextSplitter;
  import com.alibaba.langengine.core.util.PythonUtils;
  import lombok.Data;
  
  import java.util.List;
  
  /**
   * Implementation of splitting text that looks at sentences using NLTK.
   *
   * @author xiaoxuan.lp
   */
  @Data
  public class NLTKTextSplitter extends TextSplitter {
  
      private String separator = "\n\n";
  
      @Override
      public List<String> splitText(String text) {
          String result = PythonUtils.invokeMethodAsResource(getClass(), "nltk_sent_tokenize.py", text);
          List<String> splits = JSON.parseArray(result, String.class);
          return mergeSplits(splits, separator);
      }
  }