README.md

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");
}