static public Part RdfToPart(INode node, RdfRules triples)
{
SIProlog.checkNode(node);
if (node is IVariableNode)
{
var vnode = (IVariableNode)node;
return(new Variable(vnode.VariableName));
}
if (node is IGraphLiteralNode)
{
var vnode = (IGraphLiteralNode)node;
throw ErrorBadOp("RDFToPart: on " + vnode);
}
if (node is IBlankNode)
{
var vnode = (IBlankNode)node;
var atom = Atom.MakeNodeAtom(vnode);
return(atom);
node = triples.def.CreateUriNode(UriFactory.Create("_:" + vnode.InternalID));
}
if (node is IUriNode)
{
var vnode = (IUriNode)node;
var atom = Atom.MakeNodeAtom(vnode);
return(atom);
}
// all the below are now Literal Nodes of some type (we divide into "strings", numbers and "strings with"^"meaning" and
ILiteralNode litnode = node as ILiteralNode;
if (litnode == null)
{
throw ErrorBadOp("Cant find the nodetype on " + node);
}
return(Atom.MakeNodeAtomFixme(litnode));
}
private void GetMiniMt(object results, string assertTemplate, string graphKBName, PNode repo, bool show, ICollection <Rule> newRules, TextWriter ruleSources, RdfRules ruleDefs)
{
assertTemplate = assertTemplate ?? "triple($?s$,$?p$,$?o$).\n";
bool MakeRules = newRules != null && assertTemplate.Trim().EndsWith(".");
var outMap = new Dictionary <string, string>();
outMap["s"] = "unknownSubject";
outMap["p"] = "unknownPredicate";
outMap["o"] = "unknownObject";
outMap["mt"] = Atom.aq(repo.Id);
if (results is SparqlResultSet)
{
//SELECT/ASK queries give a SparqlResultSet
SparqlResultSet rset = (SparqlResultSet)results;
if (show)
{
ConsoleWriteLine("SparqlResultSet.Count = {0}", rset.Count);
ConsoleWriteLine("SparqlResultSet:{0}", rset.ToString());
}
foreach (SparqlResult r in rset)
{
//Do whatever you want with each Result
if (show)
{
ConsoleWriteLine("SparqlResult.Count = {0}", r.Count);
ConsoleWriteLine("SparqlResult:{0}", r.ToString());
}
var assertIt = assertTemplate;
//Do whatever you want with each Triple
foreach (string vname in r.Variables)
{
INode value0 = r[vname];
SIProlog.checkNode(value0);
//Graph into = FindGraph(baseURI.AbsoluteUri);
INode value = value0.CopyWNode(repo.rdfGraph);
string strVal = GraphWithDef.PlReadble(value, ruleDefs);
assertIt = assertIt.Replace("$?" + vname + "$", strVal);
if (show)
{
ConsoleWriteLine("BIND: {0} = {1}", vname, strVal);
}
}
if (assertIt.Contains("$?s$"))
{
foreach (KeyValuePair <string, string> map in outMap)
{
assertIt = assertIt.Replace("$?" + map.Key + "$", map.Value);
}
}
if (MakeRules)
{
Rule rule = ParseRule(new Tokeniser(assertIt), graphKBName);
if (show)
{
ConsoleWriteLine("RULE_IG: {0}", rule);
}
newRules.Add(rule);
}
else
{
if (show)
{
ConsoleWriteLine("TRIPLE_IG: {0}", assertIt);
}
}
if (ruleSources != null)
{
ruleSources.WriteLine(assertIt);
}
}
}
else if (results is IGraph)
{
//CONSTRUCT/DESCRIBE queries give a IGraph
IGraph resGraph = (IGraph)results;
var rset = resGraph.Triples;
outMap["mt"] = "<" + resGraph.BaseUri.AbsoluteUri + ">";
if (show)
{
ConsoleWriteLine("IGraphResultSet.Count = {0}", rset.Count);
ConsoleWriteLine("IGraphResultSet:{0}", rset.ToString());
}
foreach (Triple t in rset)
{
var assertIt = assertTemplate;
//Do whatever you want with each Triple
outMap["s"] = GraphWithDef.PlReadble(t.Subject, ruleDefs);
outMap["p"] = GraphWithDef.PlReadble(t.Predicate, ruleDefs);
outMap["o"] = GraphWithDef.PlReadble(t.Object, ruleDefs);
foreach (KeyValuePair <string, string> map in outMap)
{
assertIt = assertIt.Replace("$?" + map.Key + "$", map.Value);
}
if (MakeRules)
{
Rule rule = ParseRule(new Tokeniser(assertIt), graphKBName);
if (show)
{
ConsoleWriteLine("RULE_IG: {0}", rule);
}
newRules.Add(rule);
}
else
{
if (show)
{
ConsoleWriteLine("TRIPLE_IG: {0}", assertIt);
}
}
if (ruleSources != null)
{
ruleSources.WriteLine(assertIt);
}
}
}
else
{
//If you don't get a SparqlResutlSet or IGraph something went wrong
//but didn't throw an exception so you should handle it here
if (results == null)
{
throw ErrorBadOp("ERROR: no Results From NULL Query Object for " + graphKBName);
}
throw ErrorBadOp("ERROR: Cant how understand " + results.GetType() + " " + results + " to import to " +
graphKBName);
}
}