Native Library

   

Native Library provides a set of Java packages are re-written in C++

• Blazing fast, small footprint with no dependency required
• Cross platform, outstanding performance with multiple-core support from STL
• Prevents nearly all memory leak and segmentation fault via automatic storage
• Packages are strictly tested with unit tests, clean with Valgrind and follow Oracle documentation
• Feel free to use in your commercial products and welcome for contributions

Getting started

Docker

$ docker pull foodtiny/native:latest

Installation

$ git clone https://github.com/tiny-express/native.git
$ cd native
$ cmake . -DCMAKE_BUILD_TYPE=Release
$ make native
$ sudo make install

Examples

#include <native/library.hpp>

class MainApplication {
public:
    static void main(Array<String> arguments) {
        HashMap<String, String> hashMap;
        int counter = 0;
        for (String argument : arguments) {
            hashMap.put("argument " + String::valueOf(counter), argument);
            counter++;
        }
        System::out::println("We have 4 pairs:");
        String pairs = "Pairs: \n";
        for (Map<String, String>::Entry entry : hashMap.entrySet()) {
            pairs += entry.getKey() + String(" - ") + entry.getValue() + String("\n");
        }
        System::out::println(pairs);
        ArrayList<HashMap<String, String>> arrayList;
        arrayList.add(hashMap);
        System::out::println(arrayList.toString());
    }
};

int main(int argc, char **argv) {
    return Application(MainApplication::main, argc, argv);
}

Compile your source and link with native library

$ g++ -c -o main.o HelloWorld.cpp
$ g++ -o main main.o -lnative -lstdc++
$ ./main one two three

Output:

We have 4 pairs:
argument 3 is three
argument 2 is two
argument 1 is one
argument 0 is ./main

[{"argument 0": "./main", "argument 1": "one", "argument 2": "two", "argument 3": "three"}]

More examples can be found here Support unit test by default via ApplicationTest here - Powered by C-Unit

Documentation

Differences

This library provides Java classes in C++ so its syntax are friendly for both programming languages:

• Namespace - Package

// Java
System.out.println("Java");

// C++
System::out::println("C++");

• Array

// Java
byte[] byes = {};

// C++
Array<byte> bytes = {};

Data Types

All data types are implemented and ready to use in C++ Application

• char - Java.Lang.Character
• byte - Java.Lang.Byte
• string - Java.Lang.String
• short - Java.Lang.Short
• int - Java.Lang.Integer
• long - Java.Lang.Long
• float - Java.Lang.Float
• double - Java.Lang.Double
• boolean - Java.Lang.Boolean
• enum - Java.Lang.Enum