跨语言对象序列化：MGen
jopen
10年前
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：
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源码生成的工具 ( MGen 编译器 )
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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：
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C++
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Java
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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; }