content: /*
   * Tencent is pleased to support the open source community by making Angel available.
   *
   * Copyright (C) 2017-2018 THL A29 Limited, a Tencent company. All rights reserved.
   *
   * 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
   *
   * https://opensource.org/licenses/Apache-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.tencent.angel.ipc;
  
  import org.apache.hadoop.conf.Configuration;
  
  import javax.net.SocketFactory;
  import java.io.IOException;
  import java.net.InetSocketAddress;
  import java.util.List;
  
  
  /**
   * An RPC implementation.
   */
  public interface RpcEngine {
  
    /**
     * Construct a client-side proxy object.
     */
    VersionedProtocol getProxy(Class<? extends VersionedProtocol> protocol, long clientVersion,
      InetSocketAddress addr, Configuration conf, SocketFactory factory, int rpcTimeout,
      List<String> addrList4Failover) throws IOException;
  
    /**
     * Stop this proxy.
     */
    void stopProxy(VersionedProtocol proxy);
  
    /**
     * Construct a server for a protocol implementation instance.
     */
    RpcServer getServer(Class<? extends VersionedProtocol> protocol, Object instance,
      Class<?>[] ifaces, String bindAddress, int port, Configuration conf) throws IOException;
  
    /**
     * Stop all workers and clear resources
     */
    void shutDown();
  }
  