protected void printStringFrom(ISparqlPrinter context)
{
IEnumerable <INode> froms = getFrom();
if (froms.Count() == 0)
{
froms = context.Dataset.DefaultGraphs;
}
foreach (IResource from in froms)
{
context.println();
context.printKeyword("FROM");
context.printURIResource(from);
}
froms = getFromNamed();
if (froms.Count() == 0)
{
froms = context.Dataset.DefaultGraphs;
}
foreach (IResource fromNamed in froms)
{
context.println();
context.printKeyword("FROM NAMED");
context.printURIResource(fromNamed);
}
}
public override void printSPINRDF(ISparqlPrinter p)
{
printComment(p);
printPrefixes(p);
IResource iri = getResource(SP.PropertyGraphIRI);
IResource with = getResource(SP.PropertyWith);
if (with != null)
{
p.printIndentation(p.getIndentation());
p.printKeyword("WITH");
p.print(" ");
p.printURIResource(with);
p.println();
}
// TODO add a INSERT/CONSTRUCT pattern before the delete is effective
if (printTemplates(p, SP.PropertyDeletePattern, "DELETE", hasProperty(SP.PropertyDeletePattern), iri))
{
p.print("\n");
}
if (printTemplates(p, SP.PropertyInsertPattern, "INSERT", hasProperty(SP.PropertyInsertPattern), iri))
{
p.print("\n");
}
IEnumerable <INode> usings = getUsing();
if (usings.Count() == 0)
{
usings = p.Dataset.DefaultGraphs;
}
foreach (IResource _using in usings)
{
p.printKeyword("USING");
p.print(" ");
p.printURIResource(_using);
p.println();
}
usings = getUsingNamed();
if (usings.Count() == 0)
{
usings = p.Dataset.ActiveGraphs;
}
foreach (IResource usingNamed in usings)
{
p.printKeyword("USING");
p.print(" ");
p.printKeyword("NAMED");
p.print(" ");
p.printURIResource(usingNamed);
p.println();
}
p.CurrentSparqlContext = SparqlContext.QueryContext;
printWhere(p);
}
protected void printSolutionModifiers(ISparqlPrinter context)
{
List <IResource> orderBy = getList(SP.PropertyOrderBy);
if (orderBy.Count > 0)
{
context.println();
context.printIndentation(context.getIndentation());
context.printKeyword("ORDER BY");
foreach (IResource node in orderBy)
{
if (!node.isLiteral())
{
if (node.hasProperty(RDF.PropertyType, SP.ClassAsc))
{
context.print(" ");
context.printKeyword("ASC");
context.print(" ");
IResource expression = node.getResource(SP.PropertyExpression);
printOrderByExpression(context, expression);
}
else if (node.hasProperty(RDF.PropertyType, SP.ClassDesc))
{
context.print(" ");
context.printKeyword("DESC");
context.print(" ");
IResource expression = node.getResource(SP.PropertyExpression);
printOrderByExpression(context, expression);
}
else
{
context.print(" ");
printOrderByExpression(context, node);
}
}
}
}
long?limit = getLimit();
if (limit != null)
{
context.println();
context.printIndentation(context.getIndentation());
context.printKeyword("LIMIT");
context.print(" " + limit);
}
long?offset = getOffset();
if (offset != null)
{
context.println();
context.printIndentation(context.getIndentation());
context.print("OFFSET");
context.print(" " + offset);
}
}
override public void Print(ISparqlPrinter p)
{
List <IElement> elements = getElements();
int oldI = -1;
for (int i = 0; i < elements.Count; i++)
{
if (i == oldI)
{
break; // Prevent unknown endless loop conditions
}
oldI = i;
IElement element = elements[i];
p.printIndentation(p.getIndentation());
if (element is IElementList && ((IElementList)element).getElements().Count > 1)
{
p.print("{");
p.println();
p.setIndentation(p.getIndentation() + 1);
element.Print(p);
p.setIndentation(p.getIndentation() - 1);
p.printIndentation(p.getIndentation());
p.print("} ");
}
else
{
if (element is ITriplePattern)
{
i = printTriplePattern(elements, i, p);
}
else
{
element.Print(p);
}
}
if (!(element is IElementList) || ((IElementList)element).getElements().Count > 1)
{
p.print(" .");
}
p.println();
}
}
protected void printValues(ISparqlPrinter p)
{
IValues values = getValues();
if (values != null)
{
p.println();
values.Print(p);
}
}
override public void Print(ISparqlPrinter p)
{
p.print("{");
p.println();
IQuery query = getQuery();
if (query != null)
{
p.setIndentation(p.getIndentation() + 1);
query.Print(p);
p.setIndentation(p.getIndentation() - 1);
}
else
{
p.print("<Exception: Missing sub-query>");
}
p.println();
p.printIndentation(p.getIndentation());
p.print("}");
}
override public void printSPINRDF(ISparqlPrinter context)
{
printComment(context);
printPrefixes(context);
context.printIndentation(context.getIndentation());
context.printKeyword("CONSTRUCT");
context.print(" {");
context.println();
foreach (ITripleTemplate template in getTemplates())
{
context.printIndentation(context.getIndentation() + 1);
template.Print(context);
context.print(" .");
context.println();
}
context.printIndentation(context.getIndentation());
context.print("}");
printStringFrom(context);
context.println();
printWhere(context);
printSolutionModifiers(context);
printValues(context);
}
override public void Print(ISparqlPrinter p)
{
List <IElement> elements = getElements();
for (IEnumerator <IElement> it = elements.GetEnumerator(); it.MoveNext();)
{
IElement element = it.Current;
p.print("{");
p.println();
p.setIndentation(p.getIndentation() + 1);
element.Print(p);
p.setIndentation(p.getIndentation() - 1);
p.printIndentation(p.getIndentation());
p.print("}");
if (it.MoveNext())
{
p.println();
p.printIndentation(p.getIndentation());
p.printKeyword("UNION");
p.println();
p.printIndentation(p.getIndentation());
}
}
}
protected void printComment(ISparqlPrinter context)
{
String str = getComment();
if (str != null)
{
String[] rows = str.Split('\n');
for (int i = 0; i < rows.Length; i++)
{
context.print("# ");
context.print(rows[i]);
context.println();
}
}
}
protected void printNestedElementList(ISparqlPrinter p, INode predicate)
{
p.print(" {");
p.println();
IResource elementsRaw = getObject(predicate);
if (elementsRaw != null)
{
IElementList elements = (IElementList)elementsRaw.As(typeof(ElementListImpl));
p.setIndentation(p.getIndentation() + 1);
elements.Print(p);
p.setIndentation(p.getIndentation() - 1);
}
p.printIndentation(p.getIndentation());
p.print("}");
}
override public void printSPINRDF(ISparqlPrinter context)
{
printComment(context);
printPrefixes(context);
context.printIndentation(context.getIndentation());
context.printKeyword("ASK");
printStringFrom(context);
context.print(" ");
if (context.getIndentation() > 0)
{
// Avoid unnecessary whitespace after ASK -> put on extra row
context.println();
}
printWhere(context);
printValues(context);
}
private void printHaving(ISparqlPrinter p)
{
List <IResource> havings = getList(SP.PropertyHaving);
if (havings.Count > 0)
{
IEnumerator <IResource> it = havings.GetEnumerator();
p.println();
p.printIndentation(p.getIndentation());
p.printKeyword("HAVING");
while (it.MoveNext())
{
p.print(" ");
printNestedExpressionString(p, it.Current);
}
}
}
private void printGroupBy(ISparqlPrinter p)
{
List <IResource> groupBy = getList(SP.PropertyGroupBy);
if (groupBy.Count > 0)
{
IEnumerator <IResource> it = groupBy.GetEnumerator();
p.println();
p.printIndentation(p.getIndentation());
p.printKeyword("GROUP BY");
while (it.MoveNext())
{
p.print(" ");
IResource node = it.Current;
printNestedExpressionString(p, node);
}
}
}
override public void printSPINRDF(ISparqlPrinter context)
{
printComment(context);
printPrefixes(context);
context.printKeyword("DESCRIBE");
context.print(" ");
List <IResource> nodes = getResultNodes();
if (nodes.Count == 0)
{
context.print("*");
}
else
{
for (IEnumerator <IResource> nit = nodes.GetEnumerator(); nit.MoveNext();)
{
IResource node = nit.Current;
if (node is IVariable)
{
context.print(node.ToString());
}
else
{
printVarOrResource(context, node);
}
if (nit.MoveNext())
{
context.print(" ");
}
}
}
printStringFrom(context);
if (getWhereElements().Count != 0)
{
context.println();
printWhere(context);
}
printSolutionModifiers(context);
printValues(context);
}
override public void Print(ISparqlPrinter p)
{
p.printKeyword("VALUES");
p.print(" ");
List <String> varNames = getVarNames();
if (varNames.Count == 1)
{
p.printVariable(varNames[0]);
}
else
{
p.print("(");
IEnumerator <String> vit = varNames.GetEnumerator();
while (vit.MoveNext())
{
p.printVariable(vit.Current);
if (vit.MoveNext())
{
p.print(" ");
}
}
p.print(")");
}
p.print(" {");
p.println();
foreach (Dictionary <String, IResource> binding in getBindings())
{
p.printIndentation(p.getIndentation() + 1);
if (varNames.Count != 1)
{
p.print("(");
}
IEnumerator <String> vit = varNames.GetEnumerator();
while (vit.MoveNext())
{
String varName = vit.Current;
IResource value = binding[varName];
if (value == null)
{
p.printKeyword("UNDEF");
}
else if (value.isUri())
{
p.printURIResource(value);
}
else
{
TupleImpl.print(getModel(), Resource.Get(value, getModel()), p);
}
if (vit.MoveNext())
{
p.print(" ");
}
}
if (varNames.Count != 1)
{
p.print(")");
}
p.println();
}
p.printIndentation(p.getIndentation());
p.print("}");
}
override public void printSPINRDF(ISparqlPrinter p)
{
printComment(p);
printPrefixes(p);
p.printIndentation(p.getIndentation());
p.printKeyword("SELECT");
p.print(" ");
if (isDistinct())
{
p.printKeyword("DISTINCT");
p.print(" ");
}
if (isReduced())
{
p.printKeyword("REDUCED");
p.print(" ");
}
List <IResource> vars = getResultVariables();
if (vars.Count == 0)
{
p.print("*");
}
else
{
for (IEnumerator <IResource> vit = vars.GetEnumerator(); vit.MoveNext();)
{
IResource var = vit.Current;
if (var is IVariable)
{
if (getModel().ContainsTriple(var, SP.PropertyExpression, null))
{
printProjectExpression(p, (IVariable)var);
}
else
{
((IVariable)var).Print(p);
}
}
else if (var is IAggregation)
{
((IPrintable)var).Print(p);
}
else
{
p.print("(");
((IPrintable)var).Print(p);
p.print(")");
}
if (vit.MoveNext())
{
p.print(" ");
}
}
}
printStringFrom(p);
p.println();
printWhere(p);
printGroupBy(p);
printHaving(p);
printSolutionModifiers(p);
printValues(p);
}
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);
}
}