private string?ConstructInsertResourceQueryString(ResourceVm resourceVm, string resourceAbsoluteUri)
{
SparqlParameterizedString sparqlParameterizedInsertQuery = new();
sparqlParameterizedInsertQuery.CommandText = "INSERT DATA {@sub @pred @obj";
string?insertQuery = null;
sparqlParameterizedInsertQuery.SetUri("sub", new Uri(resourceAbsoluteUri));
SparqlParameterizedString sparqlParameterizedInsertSubQuery = new();
sparqlParameterizedInsertSubQuery.CommandText = "; @pred @obj";
foreach (var propertyName in resourceVm.Predicates.Keys)
{
if (_namespaceFactoryService.GetAbsoluteUriFromQname(propertyName, out string predAbsoluteUri))
{
PredicateContent propertyContent = resourceVm.Predicates[propertyName];
insertQuery += PopulateInsertQueryString(propertyContent,
sparqlParameterizedInsertQuery, sparqlParameterizedInsertSubQuery,
resourceAbsoluteUri, predAbsoluteUri);
if (string.IsNullOrEmpty(insertQuery))
{
return(null);
}
insertQuery += "} ";
}
else
{
return(null);
}
}
return(insertQuery);
}
private string?PopulateInsertQueryString(PredicateContent propertyContent,
SparqlParameterizedString sparqlParameterizedInsertQuery,
SparqlParameterizedString sparqlParameterizedInsertSubQuery,
string resourceAbsoluteUri, string predicateAbsoluteUri)
{
sparqlParameterizedInsertQuery.SetUri("sub", new Uri(resourceAbsoluteUri));
sparqlParameterizedInsertQuery.SetUri("pred", new Uri(predicateAbsoluteUri));
sparqlParameterizedInsertSubQuery.SetUri("pred", new Uri(predicateAbsoluteUri));
string?insertQuery = "";
bool first = true;
if (propertyContent.Curies != null)
{
foreach (var objCurie in propertyContent.Curies)
{
if (_namespaceFactoryService.GetAbsoluteUriFromQname(objCurie,
out string objectAbsoluteUri))
{
if (first)
{
sparqlParameterizedInsertQuery.SetUri("obj", new Uri(objectAbsoluteUri));
insertQuery = sparqlParameterizedInsertQuery.ToString();
first = false;
continue;
}
sparqlParameterizedInsertSubQuery.SetUri("obj", new Uri(objectAbsoluteUri));
insertQuery += sparqlParameterizedInsertSubQuery.ToString();
}
else
{
return(null);
}
}
}
if (propertyContent.Literals != null)
{
foreach (var literal in propertyContent.Literals)
{
if (first)
{
sparqlParameterizedInsertQuery =
ConstructLiteralString(sparqlParameterizedInsertQuery, literal);
insertQuery = sparqlParameterizedInsertQuery.ToString();
first = false;
continue;
}
sparqlParameterizedInsertSubQuery =
ConstructLiteralString(sparqlParameterizedInsertSubQuery, literal);
insertQuery += sparqlParameterizedInsertSubQuery.ToString();
}
}
return(insertQuery);
}
