/// <summary>
/// Insert a triple into the store
/// </summary>
/// <param name="subject"></param>
/// <param name="predicate"></param>
/// <param name="objValue"></param>
/// <param name="isObjectLiteral"></param>
/// <param name="dataType"></param>
/// <param name="langCode"></param>
/// <param name="graphUri"></param>
/// <param name="profiler"></param>
public void InsertTriple(string subject, string predicate, string objValue, bool isObjectLiteral, string dataType, string langCode, string graphUri, BrightstarProfiler profiler = null)
{
using (profiler.Step("InsertTriple"))
{
using (profiler.Step("Normalization"))
{
// Normalize subject, predicate, objValue (if it is not a literal), dataType (if it is not null)
// and graphUri (if it is not null)
try
{
subject = new Uri(subject, UriKind.Absolute).ToString();
}
catch (FormatException)
{
throw new InvalidTripleException(
String.Format("The subject '{0}' could not be parsed as a valid URI.", subject));
}
try
{
predicate = new Uri(predicate, UriKind.Absolute).ToString();
}
catch (FormatException)
{
throw new InvalidTripleException(
String.Format("The predicate'{0}' could not be parsed as a valid URI.", predicate));
}
if (!isObjectLiteral)
{
try
{
objValue = new Uri(objValue, UriKind.Absolute).ToString();
}
catch (FormatException)
{
throw new InvalidTripleException(
String.Format("The object '{0}' could not be parsed as a valid URI.", objValue));
}
}
if (isObjectLiteral && !String.IsNullOrEmpty(dataType))
{
try
{
dataType = new Uri(dataType, UriKind.Absolute).ToString();
}
catch (FormatException)
{
throw new InvalidTripleException(
String.Format("The dataType '{0}' could not be parsed as a valid URI.", dataType));
}
}
if (!String.IsNullOrEmpty(graphUri))
{
try
{
graphUri = new Uri(graphUri, UriKind.Absolute).ToString();
}
catch (FormatException)
{
throw new InvalidTripleException(
String.Format("The graphUri '{0}' could not be parsed as a valid URI.", graphUri));
}
}
if (isObjectLiteral && dataType == null)
{
dataType = RdfDatatypes.PlainLiteral;
}
// Normalize language code to lower-case (per http://www.w3.org/TR/rdf-concepts/#section-Graph-Literal)
if (langCode != null)
{
langCode = langCode.ToLowerInvariant();
}
}
using (profiler.Step("Make Prefixed Uris"))
{
subject = _prefixManager.MakePrefixedUri(subject);
predicate = _prefixManager.MakePrefixedUri(predicate);
if (!isObjectLiteral)
{
objValue = _prefixManager.MakePrefixedUri(objValue);
}
}
var txnId = _currentTxnId + 1;
ulong sid = _resourceIndex.AssertResourceInIndex(txnId, subject, profiler: profiler);
ulong pid = _resourceIndex.AssertResourceInIndex(txnId, predicate, profiler: profiler);
ulong oid = _resourceIndex.AssertResourceInIndex(txnId, objValue, isObjectLiteral, dataType, langCode,
!isObjectLiteral, profiler);
int gid = _graphIndex.AssertGraphId(graphUri, profiler);
_subjectRelatedResourceIndex.AddRelatedResource(txnId, sid, pid, oid, gid, profiler);
_objectRelatedResourceIndex.AddRelatedResource(txnId, oid, pid, sid, gid, profiler);
}
}
