/// <summary>
/// Prints the template required to process INSERT DATA commands.
/// </summary>
/// <param name="command">a IInsertData instance</param>
public virtual void PrintEnhancedSPARQL(IInsertData command)
{
IResource data = command.getResource(SP.PropertyData);
String template = SparqlTemplates.InsertData;
if (data != null)
{
foreach (Resource graph in data.AsList())
{
Uri graphUri = graph.getResource(SP.PropertyGraphNameNode).Uri;
Dataset.SetActiveGraph(graphUri);
if (Dataset.HasGraph(graphUri))
{
IGraph ucg = queryModel.GetModifiableGraph(graphUri);
foreach (Resource t in graph.getResource(SP.PropertyElements).AsList())
{
ITriplePattern triple = (ITriplePattern)t.As(typeof(TriplePatternImpl));
ucg.Assert(triple.getSubject().getSource(), triple.getPredicate().getSource(), triple.getObject().getSource());
}
}
else
{
// TODO transform those into a static SPARQL string
print("INSERT DATA { GRAPH <g> { <urn:a> <urn:b> <urn:c> . }}; ");
}
}
}
print(template);
}
private bool templateContainsVar(IResource list)
{
if (list != null && !list.isLiteral())
{
IEnumerator <IResource> nodes = list.AsList().GetEnumerator();
while (nodes.MoveNext())
{
IResource node = nodes.Current;
if (node.hasProperty(RDF.PropertyType, SP.ClassNamedGraph))
{
INamedGraph namedGraph = (INamedGraph)node.As(typeof(NamedGraphImpl));
foreach (IElement element in namedGraph.getElements())
{
if (element is ITriple)
{
if (containsVar((ITriple)element))
{
return(true);
}
}
}
}
else
{
if (containsVar((ITripleTemplate)node.As(typeof(TripleTemplateImpl))))
{
return(true);
}
}
}
}
return(false);
}
public List <IResource> getList(INode predicate)
{
IResource rawList = getObject(predicate);
if (rawList != null)
{
return(rawList.AsList());
}
return(new List <IResource>());
}
public void PrintEnhancedSPARQL(IResource resource)
{
if (resource == null)
{
return;
}
IEnumerable <IResource> elements = resource.AsList();
foreach (Resource element in elements)
{
if (element.canAs(SP.ClassQuery))
{
SPINFactory.asQuery(element).PrintEnhancedSPARQL(this);
continue;
}
else if (element.canAs(SP.ClassCommand))
{
SPINFactory.asUpdate(element).PrintEnhancedSPARQL(this);
continue;
}
else if (element.canAs(SP.ClassVariable))
{
SPINFactory.asVariable(element).PrintEnhancedSPARQL(this);
continue;
}
else if (element.isUri())
{
printURIResource(element);
continue;
}
IElement asElement = SPINFactory.asElement(element);
if (asElement != null)
{
asElement.PrintEnhancedSPARQL(this);
}
}
}
protected bool printTemplates(ISparqlPrinter p, INode predicate, String keyword, bool force, IResource graphIRI)
{
IResource resource = getResource(predicate);
if (resource == null)
{
return(false);
}
List <IResource> nodes = resource.AsList();
if (nodes.Count > 0 || force)
{
if (keyword != null)
{
p.printIndentation(p.getIndentation());
p.printKeyword(keyword);
}
p.print(" {");
p.println();
if (graphIRI != null)
{ // Legacy triple
p.setIndentation(p.getIndentation() + 1);
p.printIndentation(p.getIndentation());
p.printKeyword("GRAPH");
p.print(" ");
printVarOrResource(p, graphIRI);
p.print(" {");
p.println();
}
foreach (IResource node in nodes)
{
p.printIndentation(p.getIndentation() + 1);
if (node.canAs(SP.ClassNamedGraph))
{
INamedGraph namedGraph = (INamedGraph)node.As(typeof(NamedGraphImpl));
p.setIndentation(p.getIndentation() + 1);
p.setNamedBNodeMode(true);
namedGraph.Print(p);
p.setNamedBNodeMode(false);
p.setIndentation(p.getIndentation() - 1);
}
else
{
ITripleTemplate template = (ITripleTemplate)node.As(typeof(TripleTemplateImpl));
template.Print(p);
}
p.print(" .");
p.println();
}
if (graphIRI != null)
{
p.printIndentation(p.getIndentation());
p.setIndentation(p.getIndentation() - 1);
p.print("}");
p.println();
}
p.printIndentation(p.getIndentation());
p.print("}");
return(true);
}
else
{
return(false);
}
}
