Awesome

dotNetRDF-blazegraph

Blazegraph connector using dotNetRDF

License

GPLv2

Features Support Matrix

Usage

Download dll’s from the link and add to the project or include them by the NuGet. Look at the https://bitbucket.org/dotnetrdf/dotnetrdf/wiki/User%20Guide dotNetRDF documentation.

Examples of using Blazegraph connector:

Create new graph

BlazegraphConnector connector = new BlazegraphConnector("http://localhost:9999/bigdata/");

Graph newGraph = new Graph(); newGraph.BaseUri = UriFactory.Create("http://example/bookStore");

Triple triple = new Triple( newGraph.CreateUriNode(UriFactory.Create("http://example/book1")), newGraph.CreateUriNode(UriFactory.Create("http://example.org/ns#price")), newGraph.CreateLiteralNode("42", new Uri(XmlSpecsHelper.XmlSchemaDataTypeInteger)) ); newGraph.Assert(triple);

connector.SaveGraph(newGraph);

Load graph

Graph loadGraph = new Graph(); connector.LoadGraph(loadGraph, UriFactory.Create("http://example/bookStore"));

Update graph

Triple triple2remove = new Triple( newGraph.CreateUriNode(UriFactory.Create("http://example/book1")), newGraph.CreateUriNode(UriFactory.Create("http://example.org/ns#price")), newGraph.CreateLiteralNode("42", new Uri(XmlSpecsHelper.XmlSchemaDataTypeInteger)) ); Triple triple2add = new Triple( newGraph.CreateUriNode(UriFactory.Create("http://example/book1")), newGraph.CreateUriNode(UriFactory.Create("http://purl.org/dc/elements/1.1/title")), newGraph.CreateLiteralNode("Fundamentals of Compiler Design", new Uri(XmlSpecsHelper.XmlSchemaDataTypeString)) ); connector.UpdateGraph( UriFactory.Create("http://example/bookStore"), new List<Triple>() { triple2add }, new List<Triple>() { triple2remove } );

Delete graph

connector.DeleteGraph(UriFactory.Create("http://example/bookStore"));

Query

SparqlResultSet resultSet = (SparqlResultSet)connector.Query("SELECT * { ?s ?p ?o }"); foreach (SparqlResult result in resultSet.Results) { Console.WriteLine(result.ToString()); }