viordash / MsgpackWrapper

Wrap 'msgpack for C' for use as objects of predefined classes

MsgpackWrapper

Wrap Msgpack to be used as objects of predefined class, in continuation of the project RapidJSONWrapper

Objects are represented as DTOs with msgpack serialization/deserialization support:

class UserDto : public MsgpackObject {
  public:
	MsgpackValue<char *> Name;
	MsgpackValue<uint32_t> Role;

	UserDto(char *name = {}, TUserRole role = {})
		: Name(this, 0, name), 
		  Role(this, 1, role){};
};

class GoodsDto : public MsgpackObject {
  public:
	MsgpackValue<int> Id;
	MsgpackValue<uint32_t> Created;
	MsgpackValue<char *> Group;
	MsgpackValue<char *> Name;
	MsgpackValue<float> Price;
	MsgpackValue<double> Quantity;
	MsgpackValue<bool> Deleted;
	MsgpackValue<char *> StoreName;

	GoodsDto(int id = {}, uint32_t created = {}, char *group = {}, char *name = {}, float price = {}, double quantity = {}, bool deleted = {}, char *storeName = {})
		: Id(this, 0, id),					
		  Created(this, 1, created),	
		  Group(this, 2, group),			
		  Name(this, 3, name),				
		  Price(this, 4, price),			
		  Quantity(this, 5, quantity), 
		  Deleted(this, 6, deleted),	
		  StoreName(this, 7, storeName){};
};
    
class GoodsList : public MsgpackObjectsArray {
public:
	bool Validate(MsgpackObject *item) override { return item->Validate(); }
	MsgpackObject *CreateItem() override { return new GoodsDto(); }
};

class OrderDto : public MsgpackObject {
  public:
	MsgpackValue<char *> Supplier;
	MsgpackValue<uint32_t> DateTime;
	MsgpackValue<MsgpackArrayBase *> Goods;
	MsgpackValue<MsgpackObject *> User;
	GoodsList goodsList;
	UserDto userDto;

	OrderDto(char *supplier = {}, uint32_t dateTime = {}, char *userName = {}, TUserRole userRole = {})
		: Supplier(this, 0, supplier), 
		  DateTime(this, 1, dateTime), 
		  Goods(this, 2, &goodsList),		
		  userDto(userName, userRole),			
		  User(this, 3, &userDto){};
};

sample code (from tests):

TEST(MsgpackObjectTestsGroup, MsgpackObject_Complex_WriteTo_TryParse_Test) {
	char buffer[2048];
	OrderDto order0("Dell", 1657058000, "Joe Doe", TUserRole::uViewer);
	order0.goodsList.Add(new GoodsDto(1, 1657052789, "Keyboards", "K1-100", 58.25, 48.2));
	order0.goodsList.Add(new GoodsDto(2, 1657053789, "Keyboards", "K2-100", 158.25, 448.2));
	order0.goodsList.Add(new GoodsDto(3, 1657054789, "Keyboards", "K3-100", 258.25, 548.2));
	order0.goodsList.Add(new GoodsDto(4, 1657055789, "Keyboards", "K4-100", 358.25, 648.2));

	CHECK_EQUAL(order0.Write(buffer, sizeof(buffer)), 182);

	OrderDto order1;
	CHECK_TRUE(order1.TryParse(buffer, 182));

	CHECK_EQUAL(order1.goodsList.Size(), 4);
	CHECK_EQUAL(order1.goodsList.Item<GoodsDto *>(0)->Created.Get(), 1657052789);
	STRCMP_EQUAL(order1.goodsList.Item<GoodsDto *>(1)->Name.Get(), "K2-100");
	STRCMP_EQUAL(order1.goodsList.Item<GoodsDto *>(2)->Name.Get(), "K3-100");
	CHECK_EQUAL(order1.goodsList.Item<GoodsDto *>(3)->Price.Get(), 358.25);
	CHECK_EQUAL(order1.goodsList.Item<GoodsDto *>(3)->Quantity.Get(), 648.2);
	STRCMP_EQUAL(order1.userDto.Name.Get(), "Joe Doe");
}