public void Load()
{
//RDFGraph graph = RDFGraph.FromFile(RDFModelEnums.RDFFormats.Turtle, @"C:\Users\philippel\Documents\ONU\unescothes.ttl");
RDFGraph graph = RDFGraph.FromFile(RDFModelEnums.RDFFormats.RdfXml, @"C:\Users\philippel\Documents\ONU\unescothes.rdf");
long triplesCount = graph.TriplesCount;
}
private RDFGraph DeserializateGraph(RDFModelEnums.RDFFormats format)
{
try
{
switch (format)
{
case RDFModelEnums.RDFFormats.NTriples:
return(RDFGraph.FromFile(RDFModelEnums.RDFFormats.NTriples, "graphs/NTriples.txt"));
case RDFModelEnums.RDFFormats.RdfXml:
return(RDFGraph.FromFile(RDFModelEnums.RDFFormats.RdfXml, "graphs/RdfXml.txt"));
case RDFModelEnums.RDFFormats.TriX:
return(RDFGraph.FromFile(RDFModelEnums.RDFFormats.TriX, "graphs/TriX.txt"));
case RDFModelEnums.RDFFormats.Turtle:
return(RDFGraph.FromFile(RDFModelEnums.RDFFormats.Turtle, "graphs/Turtle.txt"));
default:
return(null);
}
}
catch (RDFModelException ex)
{
Console.WriteLine(ex.Message);
return(null);
}
}
public void RDFGraphFromFileTest()
{
// The example data is in file "Test1.ttl"
string filePath = GetPath(@"Files\Test1.ttl");
RDFGraph graph = RDFGraph.FromFile(RDFModelEnums.RDFFormats.Turtle, filePath);
Assert.Equal(11, graph.TriplesCount);
}
public void Load()
{
//RDFOntology ont = RDFSKOSOntology.Instance;
//ont.Data.From
//var graph = ont.Data.ToRDFGraph(RDFSemanticsEnums.RDFOntologyInferenceExportBehavior.ModelAndData);
//RDFGraph graph = RDFGraph.FromFile(RDFModelEnums.RDFFormats.Turtle, @"C:\Users\philippel\Documents\ONU\unescothes.ttl");
RDFGraph graph = RDFGraph.FromFile(RDFModelEnums.RDFFormats.RdfXml, @"C:\Users\philippel\Documents\ONU\unescothes.rdf");
long triplesCount = graph.TriplesCount;
}
public void Test1()
{
string filePath = GetPath(@"Files\Test1.ttl");
RDFGraph graph = RDFGraph.FromFile(RDFModelEnums.RDFFormats.Turtle, filePath);
RDFSelectQuery selectQuery = new RDFSelectQuery();
// PREFIX foaf: <http://xmlns.com/foaf/0.1/>
selectQuery.AddPrefix(RDFNamespaceRegister.GetByPrefix("foaf"));
// ?NAME
var name = new RDFVariable("name");
// ?FRIEND
var friend = new RDFVariable("friend");
// ?PERSON
var person = new RDFVariable("person");
// ?PERSON foaf:name ?NAME .
var person_foaf_name_name = new RDFPattern(person, RDFVocabulary.FOAF.NAME, name);
// ?PERSON foaf:knows ?FRIEND .
var person_foaf_knows_friend = new RDFPattern(person, RDFVocabulary.FOAF.KNOWS, friend);
// WHERE {
// {
// ?PERSON foaf:name? NAME .
// ?PERSON foaf:knows? FRIEND .
// }
// }
var pg1 = new RDFPatternGroup("PG1");
pg1.AddPattern(person_foaf_name_name);
pg1.AddPattern(person_foaf_knows_friend);
selectQuery.AddPatternGroup(pg1);
// SELECT ?PERSON ?NAME ?FRIEND
selectQuery.AddProjectionVariable(person);
selectQuery.AddProjectionVariable(name);
selectQuery.AddProjectionVariable(friend);
var sparqlCommand = selectQuery.ToString();
#region Generated SPARQL command
/*
* Generates this sparql command
*
* PREFIX foaf: <http://xmlns.com/foaf/0.1/>
*
* SELECT ?PERSON ?NAME ?FRIEND
* WHERE {
* {
* ?PERSON foaf:name ?NAME .
* ?PERSON foaf:knows ?FRIEND .
* }
* }
*
*/
#endregion
// APPLY SELECT QUERY TO GRAPH
RDFSelectQueryResult selectQueryResult = selectQuery.ApplyToGraph(graph);
// EXPORT SELECT QUERY RESULTS TO SPARQL XML FORMAT (FILE)
//selectQueryResult.ToSparqlXmlResult(@"C:\TEMP\Test1.srq");
#region Generated result file
/*
* <?xml version="1.0" encoding="utf-8"?>
* <sparql xmlns="http://www.w3.org/2005/sparql-results#">
* <head>
* <variable name="?PERSON" />
* <variable name="?NAME" />
* <variable name="?FRIEND" />
* </head>
* <results>
* <result>
* <binding name="?PERSON">
* <uri>http://example.org/alice#me</uri>
* </binding>
* <binding name="?NAME">
* <literal>Alice</literal>
* </binding>
* <binding name="?FRIEND">
* <uri>http://example.org/bob#me</uri>
* </binding>
* </result>
* <result>
* <binding name="?PERSON">
* <uri>http://example.org/alice#me</uri>
* </binding>
* <binding name="?NAME">
* <literal>Alice</literal>
* </binding>
* <binding name="?FRIEND">
* <uri>http://example.org/charlie#me</uri>
* </binding>
* </result>
* <result>
* <binding name="?PERSON">
* <uri>http://example.org/alice#me</uri>
* </binding>
* <binding name="?NAME">
* <literal>Alice</literal>
* </binding>
* <binding name="?FRIEND">
* <uri>http://example.org/snoopy</uri>
* </binding>
* </result>
* <result>
* <binding name="?PERSON">
* <uri>http://example.org/bob#me</uri>
* </binding>
* <binding name="?NAME">
* <literal>Bob</literal>
* </binding>
* <binding name="?FRIEND">
* <uri>http://example.org/alice#me</uri>
* </binding>
* </result>
* <result>
* <binding name="?PERSON">
* <uri>http://example.org/charlie#me</uri>
* </binding>
* <binding name="?NAME">
* <literal>Charlie</literal>
* </binding>
* <binding name="?FRIEND">
* <uri>http://example.org/alice#me</uri>
* </binding>
* </result>
* </results>
* </sparql>
*/
#endregion
Assert.Equal(5, selectQueryResult.SelectResultsCount);
}
public void Test2()
{
string filePath = GetPath(@"Files\Test1.ttl");
RDFGraph graph = RDFGraph.FromFile(RDFModelEnums.RDFFormats.Turtle, filePath);
RDFSelectQuery selectQuery = new RDFSelectQuery();
selectQuery.AddPrefix(RDFNamespaceRegister.GetByPrefix("foaf"));
var name = new RDFVariable("name");
var friend = new RDFVariable("friend");
var count = new RDFVariable("count");
var person = new RDFVariable("person");
// ?person foaf:name ?name .
var person_foaf_name_name = new RDFPattern(person, RDFVocabulary.FOAF.NAME, name);
// ?person foaf:knows ?friend .
var person_foaf_knows_friend = new RDFPattern(person, RDFVocabulary.FOAF.KNOWS, friend);
var pg1 = new RDFPatternGroup("PG1");
pg1.AddPattern(person_foaf_name_name);
pg1.AddPattern(person_foaf_knows_friend);
selectQuery.AddPatternGroup(pg1);
selectQuery.AddProjectionVariable(name);
//selectQuery.AddProjectionVariable(count);
// GROUP BY ?PERSON ?NAME
// var gm = new RDFGroupByModifier(new List<RDFVariable>() { person, name });
// GROUP BY ?NAME
var gm = new RDFGroupByModifier(new List <RDFVariable>()
{
name
});
// (COUNT(?friend) AS ?count)
gm.AddAggregator(new RDFCountAggregator(friend, count));
selectQuery.AddModifier(gm);
var sparqlCommand = selectQuery.ToString();
#region Target query in the SPARQL 1.1 documentation
/*
* Target query in the document
*
* PREFIX foaf: <http://xmlns.com/foaf/0.1/>
* SELECT ?name (COUNT(?friend) AS ?count)
* WHERE {
* ?person foaf:name ?name .
* ?person foaf:knows ?friend .
* } GROUP BY ?person ?name
*/
#endregion
#region Managed to build this command
/*
* PREFIX foaf: <http://xmlns.com/foaf/0.1/>
*
* SELECT ?NAME (COUNT(?FRIEND) AS ?COUNT)
* WHERE {
* {
* ?PERSON foaf:name ?NAME .
* ?PERSON foaf:knows ?FRIEND .
* }
* }
* GROUP BY ?NAME
*/
#endregion
#region Managed to build this command
/*
* Managed to build this command
*
* PREFIX foaf: <http://xmlns.com/foaf/0.1/>
*
* SELECT ?PERSON ?NAME (COUNT(?FRIEND) AS ?COUNT)
* WHERE {
* {
* ?PERSON foaf:name ?NAME .
* ?PERSON foaf:knows ?FRIEND .
* }
* }
* GROUP BY ?PERSON ?NAME
*/
#endregion
// APPLY SELECT QUERY TO GRAPH
RDFSelectQueryResult selectQueryResult = selectQuery.ApplyToGraph(graph);
// EXPORT SELECT QUERY RESULTS TO SPARQL XML FORMAT (FILE)
//selectQueryResult.ToSparqlXmlResult(@"C:\TEMP\Test2.srq");
#region Got result
/*
* Got result
*
* <?xml version="1.0" encoding="utf-8"?>
* <sparql xmlns="http://www.w3.org/2005/sparql-results#">
* <head>
* <variable name="?NAME" />
* <variable name="?COUNT" />
* </head>
* <results>
* <result>
* <binding name="?NAME">
* <literal>Alice</literal>
* </binding>
* <binding name="?COUNT">
* <literal datatype="http://www.w3.org/2001/XMLSchema#decimal">3</literal>
* </binding>
* </result>
* <result>
* <binding name="?NAME">
* <literal>Bob</literal>
* </binding>
* <binding name="?COUNT">
* <literal datatype="http://www.w3.org/2001/XMLSchema#decimal">1</literal>
* </binding>
* </result>
* <result>
* <binding name="?NAME">
* <literal>Charlie</literal>
* </binding>
* <binding name="?COUNT">
* <literal datatype="http://www.w3.org/2001/XMLSchema#decimal">1</literal>
* </binding>
* </result>
* </results>
* </sparql>
*
*/
#endregion
#region Got result
/*
*
*
* <?xml version="1.0" encoding="utf-8"?>
* <sparql xmlns="http://www.w3.org/2005/sparql-results#">
* <head>
* <variable name="?PERSON" />
* <variable name="?NAME" />
* <variable name="?COUNT" />
* </head>
* <results>
* <result>
* <binding name="?PERSON">
* <uri>http://example.org/alice#me</uri>
* </binding>
* <binding name="?NAME">
* <literal>Alice</literal>
* </binding>
* <binding name="?COUNT">
* <literal datatype="http://www.w3.org/2001/XMLSchema#decimal">3</literal>
* </binding>
* </result>
* <result>
* <binding name="?PERSON">
* <uri>http://example.org/bob#me</uri>
* </binding>
* <binding name="?NAME">
* <literal>Bob</literal>
* </binding>
* <binding name="?COUNT">
* <literal datatype="http://www.w3.org/2001/XMLSchema#decimal">1</literal>
* </binding>
* </result>
* <result>
* <binding name="?PERSON">
* <uri>http://example.org/charlie#me</uri>
* </binding>
* <binding name="?NAME">
* <literal>Charlie</literal>
* </binding>
* <binding name="?COUNT">
* <literal datatype="http://www.w3.org/2001/XMLSchema#decimal">1</literal>
* </binding>
* </result>
* </results>
* </sparql>
*
*/
#endregion
#region Target result from SPARQL 1.1 documentation
/*
* Target result
* 3 Different query results formats supported by SPARQL 1.1 (XML, JSON, CSV, TSV)
*
* <?xml version="1.0"?>
* <sparql xmlns="http://www.w3.org/2005/sparql-results#">
* <head>
* <variable name="name"/>
* <variable name="count"/>
* </head>
* <results>
* <result>
* <binding name="name">
* <literal>Alice</literal>
* </binding>
* <binding name="count">
* <literal datatype="http://www.w3.org/2001/XMLSchema#integer">3</literal>
* </binding>
* </result>
* <result>
* <binding name="name">
* <literal>Bob</literal>
* </binding>
* <binding name="count">
* <literal datatype="http://www.w3.org/2001/XMLSchema#integer">1</literal>
* </binding>
* </result>
* <result>
* <binding name="name">
* <literal>Charlie</literal>
* </binding>
* <binding name="count">
* <literal datatype="http://www.w3.org/2001/XMLSchema#integer">1</literal>
* </binding>
* </result>
* </results>
* </sparql>
*/
#endregion
Assert.Equal(3, selectQueryResult.SelectResultsCount);
}
public static void Convert(RDFModelEnums.RDFFormats formatSource, FileInfo fileSource, RDFModelEnums.RDFFormats formatDestination, FileInfo fileDestination)
{
RDFGraph graph = RDFGraph.FromFile(formatSource, fileSource.FullName);
graph.ToFile(formatDestination, fileDestination.FullName);
}
