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.csp.sentinel.adapter.sofa.rpc.fallback;
  
  import com.alibaba.csp.sentinel.slots.block.BlockException;
  import com.alipay.sofa.rpc.core.request.SofaRequest;
  import com.alipay.sofa.rpc.core.response.SofaResponse;
  import com.alipay.sofa.rpc.filter.FilterInvoker;
  
  /**
   * Sentinel fallback handler for SOFARPC services.
   *
   * @author cdfive
   */
  public interface SofaRpcFallback {
  
      /**
       * Handle the block exception and provide fallback result.
       *
       * @param invoker FilterInvoker
       * @param request SofaRequest
       * @param ex block exception
       * @return fallback result
       */
      SofaResponse handle(FilterInvoker invoker, SofaRequest request, BlockException ex);
  }
  