public void TestEdgeIsInferibleTrue()
{
var edge = new Edge(0, "?prop0", 0, 1, new[] { "http://www.wikidata.org/prop/direct/P25" });
var queryEdge = new QueryEdge(edge);
Assert.True(queryEdge.IsInferible());
}
public void TestEdgeIsInferibleFalse()
{
var edge = new Edge(0, "?prop0", 0, 1);
var queryEdge = new QueryEdge(edge);
Assert.False(queryEdge.IsInferible());
}
public void TestEdgeIsInferibleFalseInstanceOf()
{
var edge = new Edge(0, "?prop0", 0, 1, new[] { "http://www.wikidata.org/prop/direct/P31" });
var queryEdge = new QueryEdge(edge);
Assert.False(queryEdge.IsInferible());
}
public void TestEdgeHasInstanceOfTrue()
{
var edge = new Edge(0, "?prop0", 0, 1, new[] { "http://www.wikidata.org/prop/direct/P31" });
var queryEdge = new QueryEdge(edge);
Assert.True(queryEdge.HasInstanceOf());
}
public void TestEdgeHasInstanceOfFalse()
{
var edge = new Edge(0, "?prop0", 0, 1);
var queryEdge = new QueryEdge(edge);
Assert.False(queryEdge.HasInstanceOf());
}
private static QueryEdge CreateEdge(GraphImplementations.Schema.Edge schemaEdge, IEnumerable <QueryVertex> queryVertices)
{
var queryEdge = new QueryEdge(
queryVertices.First(v => v.Value.TypeId == schemaEdge.From.Value.TypeId),
queryVertices.First(v => v.Value.TypeId == schemaEdge.To.Value.TypeId),
schemaEdge.Value);
return(queryEdge);
}
public static SparqlQuery ToSparql(this QueryEdge edge, QueryGraph graph)
{
var queryBuilder = QueryBuilder.SelectAll().Distinct();
var source = edge.GetSourceNode(graph);
var target = edge.GetTargetNode(graph);
source.TraverseNodeToSparql(queryBuilder, graph);
target.TraverseNodeToSparql(queryBuilder, graph);
queryBuilder.Limit(100);
return(queryBuilder.BuildQuery());
}
private static TriplePatternObjectPart ToPredicate(this TriplePatternPredicatePart subject, QueryEdge edge)
{
return(edge.IsConstant
? subject.PredicateUri(new Uri(edge.uris.First().ToPropertyIri()))
: subject.Predicate(edge.name));
}
public static bool IsInferible(this QueryEdge edge)
{
return(edge.uris.Any() && !edge.HasInstanceOf());
}
/// <summary>
/// Given an Edge, checks if the Edge.uris has any value ending with "P31" (InstanceOf)
/// </summary>
public static bool HasInstanceOf(this QueryEdge edge)
{
return(edge.uris.HasInstanceOf());
}
/// <summary>
/// Given an Edge, get the Graph's Node, where Node.Id equals Edge.TargetId
/// </summary>
public static QueryNode GetTargetNode(this QueryEdge edge, QueryGraph graph)
{
return(graph.Nodes.FirstOrDefault(x => x.Key.Equals(edge.targetId)).Value);
}