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.istio.server;
  
  import com.alibaba.nacos.istio.misc.Loggers;
  import io.grpc.Grpc;
  import io.grpc.Metadata;
  import io.grpc.ServerCall;
  import io.grpc.ServerCallHandler;
  import org.springframework.stereotype.Component;
  
  import java.net.SocketAddress;
  
  /**
   * @author special.fy
   */
  @Component
  public class ServerInterceptor implements io.grpc.ServerInterceptor {
  
      @Override
      public <R, T> ServerCall.Listener<R> interceptCall(ServerCall<R, T> call, Metadata headers,
                                                         ServerCallHandler<R, T> next) {
          SocketAddress address = call.getAttributes().get(Grpc.TRANSPORT_ATTR_REMOTE_ADDR);
          String methodName = call.getMethodDescriptor().getFullMethodName();
  
          Loggers.MAIN.info("remote address: {}, method: {}", address, methodName);
  
          return next.startCall(call, headers);
      }
  }
  