public static NodeValue strDatatype(NodeValue v1, NodeValue v2) {
if (!v1.isString()) throw new ExprEvalException("Not a string (arg 1): " + v1);
if (!v2.isIRI()) throw new ExprEvalException("Not an IRI (arg 2): " + v2);
String lex = v1.asString();
Node dt = v2.asNode();
// Check?
Node n = Node.createLiteral(lex, null, Node.getType(dt.getURI()));
return NodeValue.makeNode(n);
}
@Override
public Node create(Node currentGraph, Token token) {
// Dispatches to the underlying operation
long line = token.getLine();
long col = token.getColumn();
String str = token.getImage();
switch (token.getType()) {
case BNODE:
return createBlankNode(currentGraph, str, line, col);
case IRI:
return createURI(str, line, col);
case PREFIXED_NAME:
{
String prefix = str;
String suffix = token.getImage2();
String expansion = expandPrefixedName(prefix, suffix, token);
return createURI(expansion, line, col);
}
case DECIMAL:
return createTypedLiteral(str, XSDDatatype.XSDdecimal, line, col);
case DOUBLE:
return createTypedLiteral(str, XSDDatatype.XSDdouble, line, col);
case INTEGER:
return createTypedLiteral(str, XSDDatatype.XSDinteger, line, col);
case LITERAL_DT:
{
Token tokenDT = token.getSubToken();
String uriStr;
switch (tokenDT.getType()) {
case IRI:
uriStr = tokenDT.getImage();
break;
case PREFIXED_NAME:
{
String prefix = tokenDT.getImage();
String suffix = tokenDT.getImage2();
uriStr = expandPrefixedName(prefix, suffix, tokenDT);
break;
}
default:
throw new RiotException("Expected IRI for datatype: " + token);
}
uriStr = resolveIRI(uriStr, tokenDT.getLine(), tokenDT.getColumn());
RDFDatatype dt = Node.getType(uriStr);
return createTypedLiteral(str, dt, line, col);
}
case LITERAL_LANG:
return createLangLiteral(str, token.getImage2(), line, col);
case STRING:
case STRING1:
case STRING2:
case LONG_STRING1:
case LONG_STRING2:
return createPlainLiteral(str, line, col);
default:
{
Node x = createNodeFromToken(currentGraph, token, line, col);
if (x != null) return x;
errorHandler.fatal("Not a valid token for an RDF term: " + token, line, col);
return null;
}
}
}
