MGen跨语言对象序列化
MGen 是一个支持跨语言的对象序列化项目，由以下两部分组成：
源码生成的工具 ( MGen 编译器 )
语言的支持库
MGen 类似 Gooogle 的 Protocol Buffers ，可序列化到 JSON 和二进制格式。
目前支持的语言有：
C++
Java
JavaScript
示例代码：
#include <com/fruitcompany/ClassRegistry.h>
#include <mgen/serialization/JsonPrettyWriter.h>
#include <mgen/serialization/JsonReader.h>
using namespace mgen;
using namespace com::fruitcompany;
using namespace com::fruitcompany::fruits;
// A class registry for type identification
const ClassRegistry registry;
std::string toJSON(const MGenBase& object) {
// Create a target to stream the object to
std::stringstream stream;
// Create a writer object
JsonPrettyWriter<std::stringstream, ClassRegistry> writer(stream, registry);
// Write the object
writer.writeObject(object);
// Return the written string
return stream.str();
}
template <typename T>
T fromJSON(const std::string& json) {
// Create a data source to stream objects from
std::stringstream stream(json);
// Create a reader object
JsonReader<std::stringstream, ClassRegistry> reader(stream, registry);
// Read object. You can read T* polymorphicly with reader.readObject<T>()
return reader.readStatic<T>();
}
int main() {
// Create some objects
const Apple apple(Brand_A, 4);
const Banana banana = Banana().setLength(5).setBrand(Brand_B);
// Serialize them to JSON and print them
std::cout << toJSON(banana) << std::endl;
std::cout << toJSON(apple) << std::endl;
// Read the objects back from their serialized form
const Apple appleBack = fromJSON<Apple>(toJSON(apple));
const Banana bananaBack = fromJSON<Banana>(toJSON(banana));
// Check that they are still the same
std::cout << (apple == appleBack) << std::endl;
std::cout << (banana == bananaBack) << std::endl;
return 0;
}评论