public void GenerateVoidNQuads(string targetFileName)
{
var targetDir = Path.GetDirectoryName(targetFileName);
if (!Directory.Exists(targetDir))
{
Directory.CreateDirectory(targetDir);
}
var rootTripleCollection = _quinceStore.GetTriplesForSubject(_graph.CreateUriNode(_repositoryUri)).ToList();
foreach (var subsetTriple in rootTripleCollection.WithPredicate(_voidSubset).ToList())
{
rootTripleCollection.AddRange(_quinceStore.GetTriplesForSubject(subsetTriple.Object).Where(t => !rootTripleCollection.Contains(t)));
}
foreach (var publisherTriple in rootTripleCollection.WithPredicate(_dctermsPublisher).ToList())
{
rootTripleCollection.AddRange(_quinceStore.GetTriplesForSubject(publisherTriple.Object).Where(t => !rootTripleCollection.Contains(t)));
}
var formatter = new NQuads11Formatter();
using (var output = File.Open(targetFileName, FileMode.Create, FileAccess.Write))
{
using (var writer = new StreamWriter(output))
{
foreach (var t in rootTripleCollection)
{
writer.WriteLine("{0} {1} {2} {3} .",
formatter.Format(t.Subject), formatter.Format(t.Predicate), formatter.Format(t.Object), formatter.FormatUri(t.GraphUri));
}
}
}
}
private static string GetGraphTriples(IEnumerable <Triple> triples)
{
var lineFormat = new NQuads11Formatter();
var str = new StringBuilder();
foreach (var graphGroup in triples.GroupBy(t => t.GraphUri))
{
str.Append("GRAPH <");
str.Append(graphGroup.Key);
str.AppendLine("> {");
foreach (var t in graphGroup)
{
str.Append(" ");
str.Append(lineFormat.Format(t.Subject));
str.Append(" ");
str.Append(lineFormat.Format(t.Predicate));
str.Append(" ");
str.Append(lineFormat.Format(t.Object));
str.AppendLine(" .");
}
str.AppendLine("}");
}
return(str.ToString());
}
