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

Example 21 with ExprEvalException

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

the class substring method exec.

@Override
public NodeValue exec(List<NodeValue> args) {
    if (args.size() != 2 && args.size() != 3)
        throw new ExprEvalException("substring: Wrong number of arguments: " + args.size() + " : [wanted 2 or 3]");
    NodeValue v1 = args.get(0);
    NodeValue v2 = args.get(1);
    NodeValue v3 = null;
    if (args.size() == 3) {
        v3 = args.get(2);
        return XSDFuncOp.javaSubstring(v1, v2, v3);
    }
    return XSDFuncOp.javaSubstring(v1, v2);
}

Example 22 with ExprEvalException

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

the class AccumulatorExpr method accumulate.

@Override
public final void accumulate(Binding binding, FunctionEnv functionEnv) {
    NodeValue nv = ExprLib.evalOrNull(expr, binding, functionEnv);
    if (nv != null) {
        if (makeDistinct) {
            if (values.contains(nv))
                return;
            values.add(nv);
        }
        try {
            accumulate(nv, binding, functionEnv);
            accCount++;
            return;
        } catch (ExprEvalException ex) {
        }
    // Drop to error case.
    }
    accumulateError(binding, functionEnv);
    errorCount++;
}

Example 23 with ExprEvalException

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

the class NodeFunctions method iri.

public static Node iri(Node nv, String baseIRI) {
    if (nv.isURI())
        return nv;
    if (nv.isBlank()) {
        // Skolemization of blank nodes to IRIs : Don't ask, just don't ask.
        String x = nv.getBlankNodeLabel();
        return NodeFactory.createURI("_:" + x);
    }
    // Simple literal or xsd:string
    String str = simpleLiteralOrXSDString(nv);
    if (str == null)
        throw new ExprEvalException("Can't make an IRI from " + nv);
    IRI iri = null;
    String iriStr = nv.getLiteralLexicalForm();
    // Level of checking?
    if (baseIRI != null) {
        IRI base = iriFactory.create(baseIRI);
        iri = base.create(iriStr);
    } else
        iri = iriFactory.create(iriStr);
    if (!iri.isAbsolute())
        throw new ExprEvalException("Relative IRI string: " + iriStr);
    if (warningsForIRIs && iri.hasViolation(false)) {
        String msg = "unknown violation from IRI library";
        Iterator<Violation> iter = iri.violations(false);
        if (iter.hasNext()) {
            Violation viol = iter.next();
            msg = viol.getShortMessage();
        }
        Log.warn(NodeFunctions.class, "Bad IRI: " + msg + ": " + iri);
    }
    return NodeFactory.createURI(iri.toString());
}

Example 24 with ExprEvalException

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

the class FN_FormatNumber method exec.

@Override
public NodeValue exec(List<NodeValue> args) {
    if (args.size() != 2 && args.size() != 3)
        throw new ExprEvalException("Function '" + Lib.className(this) + "' takes two or three arguments");
    NodeValue value = args.get(0);
    NodeValue picture = args.get(1);
    NodeValue decimalFormatName = null;
    if (args.size() == 3)
        decimalFormatName = args.get(2);
    return XSDFuncOp.formatNumber(value, picture, decimalFormatName);
}

Example 25 with ExprEvalException

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

the class SystemVar method exec.

// Need to intercept exec so we can get to the FunctionEnv
@Override
public NodeValue exec(Binding binding, ExprList args, String uri, FunctionEnv env) {
    // Ignore arguments.
    Object obj = env.getContext().get(systemSymbol);
    if (obj == null)
        throw new ExprEvalException("null for system symbol: " + systemSymbol);
    if (!(obj instanceof Node))
        throw new ExprEvalException("Not a Node: " + Lib.className(obj));
    Node n = (Node) obj;
    //        if ( n == null )
    //            throw new ExprEvalException("No value for system variable: "+systemSymbol) ;  
    // NodeValue.makeNode could have a cache.
    NodeValue nv = NodeValue.makeNode(n);
    return nv;
}