Examples with ExprEvalException org.apache.jena.sparql.expr.ExprEvalException used on opensource projects

Example 26 with ExprEvalException

use of org.apache.jena.sparql.expr.ExprEvalException in project jena by apache.

the class AccStatLib method calcVariance$.

// Engine.
private static double calcVariance$(double sumSquared, double sum, long N, long N1) {
    //        System.out.printf("sum = %f, sumSq = %f, N=%d\n", sum, sumSquared, N) ;
    if (N <= 0)
        throw new ExprEvalException("N= " + N);
    if (N1 == 0)
        throw new ExprEvalException("Sample size one");
    double x = sumSquared - (sum * sum) / N;
    x = x / N1;
    return x;
}

Example 27 with ExprEvalException

use of org.apache.jena.sparql.expr.ExprEvalException in project jena by apache.

the class NodeFunctions method strLang.

public static NodeValue strLang(NodeValue v1, NodeValue v2) {
    if (!v1.isString())
        throw new ExprEvalException("Not a string (arg 1): " + v1);
    if (!v2.isString())
        throw new ExprEvalException("Not a string (arg 2): " + v2);
    String lex = v1.asString();
    String lang = v2.asString();
    if (lang.isEmpty())
        throw new ExprEvalException("Empty lang tag");
    return NodeValue.makeLangString(lex, lang);
}

Example 28 with ExprEvalException

use of org.apache.jena.sparql.expr.ExprEvalException in project jena by apache.

the class NodeFunctions method rdfTermEquals.

// Exact as defined by SPARQL spec.
public static boolean rdfTermEquals(Node n1, Node n2) {
    if (n1.equals(n2))
        return true;
    if (n1.isLiteral() && n2.isLiteral()) {
        // Two literals, may be sameTerm by language tag case insensitivity.
        String lang1 = n1.getLiteralLanguage();
        String lang2 = n2.getLiteralLanguage();
        if (!lang1.equals("") && lang1.equalsIgnoreCase(lang2)) {
            // Two language tags, equal by case insensitivity.
            boolean b = n1.getLiteralLexicalForm().equals(n2.getLiteralLexicalForm());
            if (b)
                return true;
        }
        // Two literals, different terms, different language tags.
        NodeValue.raise(new ExprEvalException("Mismatch in RDFterm-equals: " + n1 + ", " + n2));
    }
    // One or both not a literal.
    return false;
}

Example 29 with ExprEvalException

use of org.apache.jena.sparql.expr.ExprEvalException in project jena by apache.

the class NodeFunctions method strDatatype.

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 = NodeFactory.createLiteral(lex, NodeFactory.getType(dt.getURI()));
    return NodeValue.makeNode(n);
}

Example 30 with ExprEvalException

use of org.apache.jena.sparql.expr.ExprEvalException in project jena by apache.

the class listIndex method execObjectList.

@Override
protected QueryIterator execObjectList(Binding binding, Var listVar, Node predicate, List<Node> objectArgs, ExecutionContext execCxt) {
    if (objectArgs.size() != 2)
        throw new ExprEvalException("ListIndex : object not a list of length 2");
    Node indexNode = objectArgs.get(0);
    Node memberNode = objectArgs.get(1);
    final Collection<Node> x;
    if (!Var.isVar(memberNode))
        // If memberNode is defined, find lists containing it.
        x = GraphList.listFromMember(new GNode(execCxt.getActiveGraph(), memberNode));
    else
        // Hard. Subject unbound, no fixed member. Find every list and use BFI.
        x = GraphList.findAllLists(execCxt.getActiveGraph());
    return super.allLists(binding, x, listVar, predicate, new PropFuncArg(objectArgs, null), execCxt);
}