Graph Engine - Open Source (This repo will be retired come the end of the first quarter 2022. Please see the IKW-GraphEngine repo)

The Microsoft Graph Engine is a fantastic technology and although the original Microsoft Repo does not get much love or attention from the Microsoft Research team the software works has planned used in a number of commercial applications. We use it heavily @ InKnowWorks and thus we continue to evolve the technology.

New Capabilities are coming! (Spring 2022)

• Updated C# Code generation: Support for C# 8, 9 and 10 coming in the Spring of 2022
• Native code generation for Java 15 Client-side code only
• Refactored Azure Service Fabric support
• Native OWL 2 support via TSL 2.0
• Updated and Revised LIKQ for various graph traversal
• New Graph Engine VS 2022 plug-in
• much more ..

-	Windows Multi Targeting	Ubuntu 16.04 .NET Core
Build
Tests	_	_
Stress	_	_

This repository contains the source code of Graph Engine and its graph query language -- Language Integrated Knowledge Query (LIKQ).

Microsoft Graph Engine is a distributed in-memory data processing engine, underpinned by a strongly-typed in-memory key-value store and a general-purpose distributed computation engine.

LIKQ is a versatile graph query language atop Graph Engine. It combines the capability of fast graph exploration with the flexibility of lambda expression. Server-side computations can be expressed in lambda expressions, embedded in LIKQ, and executed on Graph Engine servers during graph traversal.

How to contribute

If you are interested in contributing to Graph Engine, please fork the repository and submit pull requests to the master branch.

Pull requests, issue reports, and suggestions are welcome.

Getting started with Graph Engine

NuGet packages and Visual Studio extension

NuGet packages Graph Engine Core and LIKQ are available in the NuGet Gallery.

If you develop Graph Engine applications using Visual Studio on Windows, Graph Engine VSExtension can be used to facilitate the development work.

Building on Windows

Install Visual Studio 2017 or 2019 and VS *2022 with the following components selected:

• Support for VS 2022 is under development

• .NET desktop development

  • .NET Framework 4.7.2 development tools
  • .NET 5.0 / .NET 6.0

• Desktop development with C++

  • Windows 10 SDK
  • Windows 11 SDK

• Visual Studio extension development

• .NET Core SDK 3.1

• .NET 5/6 SDK for Visual Studio

• cmake (latest)

.NET 5/6 SDK and cmake can alternatively be installed using their standalone installers.

The Windows build will generate multi-targeting nuget packages. Open a powershell window, run tools/build.ps1 for Visual Studio 2017 or tools/build.ps1 -VS2019 for Visual Studio 2019.

The Linux native assemblies will also be packaged (pre-built at lib) to allow the Windows build to work for Linux .Net Core as well.

Building on Linux

Install libunwind8, g++, cmake and libssl-dev. For example, run sudo apt install libunwind8 g++ cmake libssl-dev for Ubuntu.

Install .NET 5.0 and execute bash tools/build.sh. Install .NET 6.0 and execute bash tools/build.sh.

The Windows native assemblies will also be packaged so that the Linux build will work for Windows .Net Core as well.

Note: Because .Net Framework is Windows-only, the packages built on Linux only support .Net Core. The build script is tested only on Ubuntu 16.04, Ubuntu 18.04, and Ubuntu 20.04.

How to use the built Graph Engine packages

Nuget packages will be built as build/GraphEngine**._version_.nupkg. The folder build/ will be registered as a local NuGet repository and the local package cache for GraphEngine.Core will be cleared. After the packages are built, run dotnet restore to use the newly built package.

Build for Mac OS (Coming in 2022!)

Run your first Graph Engine app

Go to the samples/Friends/Friends folder, execute dotnet restore and dotnet run to run the sample project.

New Samples apps and new learnings + useful documentation

Lost of new Samples

• WPF
• UWP (Current)
• WinUI (current)
• Reactive Design Patterns for Graph Engine Server and Client side implementations
• RDF, RDFS, and Labled Property Graphs and HyperGraphs data models =======

LIKQ is a versatile graph query language on top of Graph Engine that combines the capability of fast graph exploration with the flexibility of lambda expression. Server-side computations can be expressed in lambda expressions, embedded in LIKQ, and executed server side during graph traversal.

How to Contribute

If you are interested in contributing to the code, please fork the repository and submit pull requests to the master branch.

Don't' use these Nuget packages as they are obsolete !

======= [gallery]: https://visualstudiogallery.msdn.microsoft.com/12835dd2-2d0e-4b8e-9e7e-9f505bb909b8