"OLC" : {
      "AUTO_START" : "YES",
      "ENDPOINTS" : [
         {  // 用于与SmartMonitor建立心跳
            "name" : "MonitorSUB",   
            "zmq_socket_action" : "CONNECT",  // ZMQ的连接模式
            "zmq_socket_type" : "ZMQ_SUB"     // ZMQ的通讯模式
         },
         {　// 下发消息给OCDis，这边存在转发功能，支持业务实现按条件转发
            "downstream" : [ "OCDis2OLC"],
            "name" : "NE2OLC",                // 根据这个名字在业务代码中实现转发
            "zmq_socket_action" : "BIND",
            "zmq_socket_type" : "ZMQ_STREAM" 
         },
         {　// OLC到OCDis的链路
            "name" : "OCDis2OLC",
            "statistics_on" : true,
            "zmq_socket_action" : "CONNECT",
            "zmq_socket_type" : "ZMQ_DEALER"
         },
         {　// OCDis回OLC的链路，之所以来去分开，主要用于实现优雅启停功能（启停节点保证不丢消息）
            "name" : "OCDis2OLC_Backway",
            "statistics_on" : true,
            "zmq_socket_action" : "CONNECT",
            "zmq_socket_type" : "ZMQ_DEALER",
            "backway_pair" : "OCDis2OLC"
         },
         {　　// 用于与SmartMonitor的命令消息链路
            "name" : "OLC2Monitor",
            "zmq_socket_action" : "CONNECT",
            "zmq_socket_type" : "ZMQ_DEALER"
         },
      ],
      "ENDPOINT_TO_MONITOR" : "OLC2Monitor",
      "INSTANCE_GROUP" : [
         {
            "instance_endpoints_address" : [
               {
                  "endpoint_name" : "NE2OLC",
                  "zmq_socket_address" : "tcp://*:6701"
               },
               {
                  "endpoint_name" : "OCDis2OLC",
                  "zmq_socket_address" : [
                     "tcp://127.0.0.1:7201"   // 跨机的IP地址与端口，配合状态中心可实现自动管理，无需人工参与配置
                  ]
               },
               {
                  "endpoint_name" : "OCDis2OLC_Backway",
                  "zmq_socket_address" : [
                     "tcp://127.0.0.1:7202"
                  ]
               },
               {
                  "endpoint_name" : "OLC2Monitor",
                  "zmq_socket_address" : "ipc://Monitor2Business_IPC"
               },
               {
                  "endpoint_name" : "MonitorSUB",
                  "zmq_socket_address" : "ipc://MonitorPUB"
               }
            ],
            "instance_group_name" : "1"
         }
      ]
   },

static const char * ENDPOINT_NE2OLC = "NE2OLC";
static const char * ENDPOINT_OLC2OCDIS = "OCDis2OLC";
static const char * ENDPOINT_MONITORSUB = "MonitorSUB";

int main(int argc, char * argv[]) {

    SmartUtilities::Daemonize();
    OLCProxyServer server(argc, argv);

    if (!server.Initialize(logger))
        return -1;
　　
    // OLC与OCDis的消息处理
    server.SetCallbackOnReceivingMessage(ENDPOINT_OLC2OCDIS, bind(&OLCProxyServer::ReceiveFromOCDis, &server, _1, _2, _3));

　　// OLC与SmartMonitor的消息处理
    server.SetCallbackOnReceivingMessage(ENDPOINT_MONITORSUB, bind(&OLCProxyServer::ReceiveFromMonitorSUB, &server, _1, _2, _3));

　　// 解析消息包实现业务功能
    server.SetPacketParserFunction(ENDPOINT_NE2OLC, bind(&OLCProxyServer::ParseStreamCCR, &server, _1, _2, _3));

　　// 设置消息转发具体规则
    server.SetDownstreamSelector(ENDPOINT_NE2OLC, bind(&OLCProxyServer::StreamSelector, &server, _1, _2));

    server.Run();
    return 0;
}

{
  "OCPro": {
    "IN":  2,      // 业务进程可以有不同的种类，后面代表进程数
    "PS":  3,
    "SMS": 4,
  },
  "OCDis": 3,
  "SERVER_TYPE":"OCS"  // 节点的类型
}