C++ Micro Services

http://cppmicroservices.org/

Introduction

The C++ Micro Services library provides a dynamic service registry based on theservice layer as specified in the OSGi R4.2 specifications. It enables users torealize a service oriented approach within their software stack.

The advantages include higher reuse of components, looser coupling, better organization ofresponsibilities, cleaner API contracts, etc.

Requirements

This is a pure C++ implementation of the OSGi service model and does not have any third-partylibrary dependencies.

Supported Platforms

The library should compile on many different platforms. Below is a list of tested compiler/OS combinations:

• GCC 4.5 (Ubuntu 11.04 and MacOS X 10.6)
• Visual Studio 2008 and 2010
• Clang 3.0 (Ubuntu 11.04 and MacOS X 10.6)

Legal

Copyright (c) German Cancer Research Center. Licensed under the Apache License v2.0.

Quick Start

Essentially, the C++ Micro Services library provides you with a powerful dynamic service registry.Each shared or static library has an associated ModuleContext object, through which the serviceregistry is accessed.

To query the registry for a service object implementing one or more specific interfaces, the codewould look like this:

#include <usModuleContext.h>
#include <someInterface.h>

using namespace us;

void UseService(ModuleContext* context)
{
  ServiceReference serviceRef = context->GetServiceReference<SomeInterface>();
  if (serviceRef)
  {
    SomeInterface* service = context->GetService<SomeInterface>(serviceRef);
    if (service) { /* do something */ }
  }
}

Registering a service object against a certain interface looks like this:

#include <usModuleContext.h>
#include <someInterface.h>

using namespace us;

void RegisterSomeService(ModuleContext* context, SomeInterface* service)
{
  context->RegisterService<SomeInterface>(service);
}

The OSGi service model additionally allows to annotate services with properties and using theseproperties during service look-ups. It also allows to track the life-cycle of service objects.Please see the Documentation for moreexamples and tutorials and the API reference. There is also a blog post aboutOSGi Lite for C++.

Build Instructions

Please visit the Build Instructions page online.