private static void argList(ExprList exprList, PropFuncArg pfArg) {
if (pfArg.isNode()) {
Node n = pfArg.getArg();
Expr expr = ExprUtils.nodeToExpr(n);
exprList.add(expr);
return;
}
for (Node n : pfArg.getArgList()) {
Expr expr = ExprUtils.nodeToExpr(n);
exprList.add(expr);
}
}
/**
* Deconstruct the node or list object argument and make a StrMatch The 'executionTime' flag
* indciates whether this is for a build time static check, or for runtime execution.
*/
private StrMatch objectToStruct(PropFuncArg argObject, boolean executionTime) {
EntityDefinition docDef = textIndex.getDocDef();
if (argObject.isNode()) {
Node o = argObject.getArg();
if (!o.isLiteral()) {
if (executionTime) log.warn("Object to text query is not a literal");
return null;
}
RDFDatatype dt = o.getLiteralDatatype();
if (dt != null && dt != XSDDatatype.XSDstring) {
log.warn("Object to text query is not a string");
return null;
}
String qs = o.getLiteralLexicalForm();
return new StrMatch(null, qs, -1, 0);
}
List<Node> list = argObject.getArgList();
if (list.size() == 0 || list.size() > 3)
throw new TextIndexException("Change in object list size");
Node predicate = null;
String field = null; // Do not prepend the field name - rely on default field
int idx = 0;
Node x = list.get(0);
// Property?
if (x.isURI()) {
predicate = x;
idx++;
if (idx >= list.size())
throw new TextIndexException("Property specificed but no query string : " + list);
x = list.get(idx);
field = docDef.getField(predicate);
if (field == null) {
log.warn("Predicate not indexed: " + predicate);
return null;
}
}
// String!
if (!x.isLiteral()) {
if (executionTime) log.warn("Text query string is not a literal " + list);
return null;
}
if (x.getLiteralDatatype() != null && !x.getLiteralDatatype().equals(XSDDatatype.XSDstring)) {
log.warn("Text query is not a string " + list);
return null;
}
String queryString = x.getLiteralLexicalForm();
idx++;
int limit = -1;
float score = 0;
if (idx < list.size()) {
// Limit?
x = list.get(idx);
idx++;
if (!x.isLiteral()) {
if (executionTime) log.warn("Text query limit is not an integer " + x);
return null;
}
int v = NodeFactoryExtra.nodeToInt(x);
limit = (v < 0) ? -1 : v;
}
String qs = queryString;
if (field != null) qs = field + ":" + qs;
return new StrMatch(predicate, qs, limit, score);
}