content: /*
   * Copyright 1999-2018 Alibaba Group Holding Ltd.
   *
   * 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.nacos.api.config.listener;
  
  import com.alibaba.nacos.api.config.ConfigChangeItem;
  
  import java.io.IOException;
  import java.util.Map;
  
  /**
   * ConfigChangeParser.
   *
   * @author rushsky518
   */
  public interface ConfigChangeParser {
      
      /**
       * Judge type.
       *
       * @param type data type
       * @return true if is responsible type, otherwise false
       */
      boolean isResponsibleFor(String type);
      
      /**
       * Compare old and new data.
       *
       * @param oldContent old content
       * @param newContent new content
       * @param type       data type
       * @return key and change item map
       * @throws IOException io exception
       */
      Map<String, ConfigChangeItem> doParse(String oldContent, String newContent, String type) throws IOException;
  }
  