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.filter;
  
  import com.alibaba.nacos.api.exception.NacosException;
  
  /**
   * Config Filter Interface
   *
   * @author Nacos
   */
  public interface IConfigFilter {
      /**
       * Init
       *
       * @param filterConfig Filter Config
       */
      void init(IFilterConfig filterConfig);
  
      /**
       * do filter
       *
       * @param request     request
       * @param response    response
       * @param filterChain filter Chain
       * @throws NacosException exception
       */
      void doFilter(IConfigRequest request, IConfigResponse response, IConfigFilterChain filterChain)
              throws NacosException;
  
      /**
       * deploy
       */
      void deploy();
  
      /**
       * Get order
       *
       * @return order number
       */
      int getOrder();
  
      /**
       * Get filterName
       *
       * @return filter name
       */
      String getFilterName();
  
  }
  