Protobuf serialize/deserialize test

request1.proto

syntax = "proto3";
package request1;

message Request {
    Type type = 1;
    AmazingCommand amazingCommand = 2;
    BeautifulCommand beautifulCommand = 3;
    CharmingCommand charmingCommand = 4;
    DashingCommand dashingCommand = 5;

    enum Type {
        AMAZING = 0;
        BEAUTIFUL = 1;
        CHARMING = 2;
        DASHING = 3;
    }

    message AmazingCommand {
        bool amazing = 1;
    }

    message BeautifulCommand {
        string beautiful = 1;
    }

    message CharmingCommand {
        int32 charming = 1;
    }

    message DashingCommand {
        double dashing = 1;
    }
}

message Response {
    bool success = 1;
}

request2.proto

syntax = "proto3";
package request2;

message Request {
    Type type = 1;
    AmazingCommand amazingCommand = 2;
    BeautifulCommand beautifulCommand = 3;
    CharmingCommand charmingCommand = 4;
    DashingCommand dashingCommand = 5;
    ExcellentCommand excellentCommand = 6;

    enum Type {
        AMAZING = 0;
        BEAUTIFUL = 1;
        CHARMING = 2;
        DASHING = 3;
        EXCELLENT = 4;
    }

    message AmazingCommand {
        bool amazing = 1;
    }

    message BeautifulCommand {
        string beautiful = 1;
    }

    message CharmingCommand {
        int32 charming = 1;
    }

    message DashingCommand {
        double dashing = 1;
    }

    message ExcellentCommand {
        string excellent = 1;
    }
}

message Response {
    bool success = 1;
}

test.cc

// Protobuf serialize/deserialize test
// Christopher Vo ([email protected])

#include <iostream>

#include "request1.pb.cc"
#include "request2.pb.cc"

void printRequest1(const request1::Request & request)
{
  switch(request.type()) {
    case request1::Request_Type_AMAZING:
      std::cout << "Parsed AMAZING command via API1" << std::endl;
      break;
    case request1::Request_Type_BEAUTIFUL:
      std::cout << "Parsed BEAUTIFUL command via API1" << std::endl;
      break;
    case request1::Request_Type_CHARMING:
      std::cout << "Parsed CHARMING command via API1" << std::endl;
      break;
    case request1::Request_Type_DASHING:
      std::cout << "Parsed DASHING command via API1" << std::endl;
      break;
    default:
      std::cout << "Parsed UNKNOWN command via API1" << std::endl;
      break;
  }
}

void printRequest2(const request2::Request & request)
{
  switch(request.type()) {
    case request2::Request_Type_AMAZING:
      std::cout << "Parsed AMAZING command via API2" << std::endl;
      break;
    case request2::Request_Type_BEAUTIFUL:
      std::cout << "Parsed BEAUTIFUL command via API2" << std::endl;
      break;
    case request2::Request_Type_CHARMING:
      std::cout << "Parsed CHARMING command via API2" << std::endl;
      break;
    case request2::Request_Type_DASHING:
      std::cout << "Parsed DASHING command via API2" << std::endl;
      break;
    case request2::Request_Type_EXCELLENT:
      std::cout << "Parsed EXCELLENT command via API2" << std::endl;
      break;
    default:
      std::cout << "Parsed UNKNOWN command via API2" << std::endl;
      break;
  }
}

int main(int argc, char *argv[])
{
  // case 1: send API1, receive API1
  {
    std::cout << "Case 1: API1 -> API1" << std::endl;

    // serialize a request
    request1::Request r;
    r.set_type(request1::Request::AMAZING);
    auto amazing = r.mutable_amazingcommand();
    amazing->set_amazing(true);
    std::string serialized = r.SerializeAsString();
    std::cout << "  [Case 1]: Serialize AMAZING command via API1" << std::endl;

    // deserialize the request
    request1::Request d;
    if(d.ParseFromString(serialized)) {
      std::cout << "  [Case 1]: ";
      printRequest1(d);
    } else {
      std::cerr << "  [Case 1]: Could not parse via API1" << std::endl;
    }
  }

  // case 2: send API1, receive API2
  {
    std::cout << "Case 2: API1 -> API2" << std::endl;

    // serialize a request
    request1::Request r;
    r.set_type(request1::Request::AMAZING);
    auto amazing = r.mutable_amazingcommand();
    amazing->set_amazing(true);
    std::string serialized = r.SerializeAsString();
    std::cout << "  [Case 2]: Serialize AMAZING command via API1" << std::endl;

    // deserialize the request
    request2::Request d;
    if(d.ParseFromString(serialized)) {
      std::cout << "  [Case 2]: ";
      printRequest2(d);
    } else {
      std::cerr << "  [Case 2]: Could not parse via API2" << std::endl;
    }
  }

  // case 3: send API2, receive API1
  {
    std::cout << "Case 3: API2 -> API1" << std::endl;

    // serialize a request
    request2::Request r;
    r.set_type(request2::Request::EXCELLENT);
    auto excellent = r.mutable_excellentcommand();
    excellent->set_excellent("YES, SO EXCELLENT");
    std::string serialized = r.SerializeAsString();
    std::cout << "  [Case 3]: Serialize EXCELLENT command via API2" << std::endl;

    // deserialize the request
    request1::Request d;
    if(d.ParseFromString(serialized)) {
      std::cout << "  [Case 3]: ";
      printRequest1(d);
    } else {
      std::cerr << "  [Case 3]: Could not parse via API1" << std::endl;
    }
  }

  // case 4: send API2, receive API2
  {
    std::cout << "Case 4: API2 -> API2" << std::endl;

    // serialize a request
    request2::Request r;
    r.set_type(request2::Request::EXCELLENT);
    auto excellent = r.mutable_excellentcommand();
    excellent->set_excellent("YES, SO EXCELLENT");
    std::string serialized = r.SerializeAsString();
    std::cout << "  [Case 4]: Serialize EXCELLENT command via API2" << std::endl;

    // deserialize the request
    request2::Request d;
    if(d.ParseFromString(serialized)) {
      std::cout << "  [Case 4]: ";
      printRequest2(d);
    } else {
      std::cerr << "  [Case 4]: Could not parse via API2" << std::endl;
    }
  }
}