/// <summary>
/// Executes a SPARQL Query against the underlying Knowledge Base
/// </summary>
/// <param name="sparqlQuery">SPARQL Query</param>
/// <returns></returns>
public object ExecuteQuery(string sparqlQuery)
{
Type svcType = typeof(QueryService);
if (_kb.SupportsService(svcType))
{
QueryService svc = (QueryService)_kb.GetService(svcType);
return(svc.Query(sparqlQuery));
}
else
{
throw new NotSupportedException("The Knowledge Base does not support the SPARQL Query service");
}
}
/// <summary>
/// Creates a new Pellet Query Processor
/// </summary>
/// <param name="server">Pellet Server</param>
/// <param name="kbName">Knowledge Base Name</param>
public PelletQueryProcessor(PelletServer server, String kbName)
{
if (server.HasKnowledgeBase(kbName))
{
KnowledgeBase kb = server.GetKnowledgeBase(kbName);
//Check SPARQL Query is supported
if (kb.SupportsService(this._svcType))
{
this._svc = (QueryService)kb.GetService(this._svcType);
}
else
{
throw new NotSupportedException("Cannot create a Pellet Query Processor as the selected Knowledge Base does not support the Query Service");
}
}
else
{
throw new NotSupportedException("Cannot create a Pellet Query Processor for the Knowledge Base named '" + kbName + "' as this Server does not have the named Knowledge Base");
}
}