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

Example 1 with ExprEvalException

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

the class concat method execEvaluated.

@Override
public QueryIterator execEvaluated(Binding binding, Node subject, Node predicate, PropFuncArg object, ExecutionContext execCxt) {
    if (!Var.isVar(subject))
        throw new ExprEvalException("Subject is not a variable (" + subject + ")");
    String x = "";
    for (Node node : object.getArgList()) {
        if (Var.isVar(node))
            return IterLib.noResults(execCxt);
        String str = NodeFunctions.str(node);
        x = x + str;
    }
    return IterLib.oneResult(binding, Var.alloc(subject), NodeFactory.createLiteral(x), execCxt);
}

Example 2 with ExprEvalException

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

the class strSplit method execEvaluated.

@Override
public QueryIterator execEvaluated(final Binding binding, final Node subject, final Node predicate, final PropFuncArg object, final ExecutionContext execCxt) {
    if (!Var.isVar(subject))
        throw new ExprEvalException("Subject is not a variable (" + subject + ")");
    if (object.getArgListSize() != 2)
        throw new ExprEvalException("Object list must contain exactly two arguments, the string to split and a regular expression");
    String s = object.getArg(0).getLiteralLexicalForm();
    String regex = object.getArg(1).getLiteralLexicalForm();
    final Var subjectVar = Var.alloc(subject);
    // StrUtils will also trim whitespace
    String[] tokens = StrUtils.split(s, regex);
    Iterator<Binding> it = Iter.map(Arrays.asList(tokens).iterator(), item -> BindingFactory.binding(binding, subjectVar, NodeFactory.createLiteral(item)));
    return new QueryIterPlainWrapper(it, execCxt);
}

Example 3 with ExprEvalException

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

the class listIndex method execOneList.

@Override
protected QueryIterator execOneList(Binding binding, Node listNode, Node predicate, List<Node> objectArgs, ExecutionContext execCxt) {
    if (Var.isVar(listNode))
        throw new ExprEvalException("ListIndex : subject not a list or variable bound to a list");
    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);
    Graph graph = execCxt.getActiveGraph();
    if (Var.isVar(indexNode) && !Var.isVar(memberNode))
        return findIndex(graph, binding, listNode, Var.alloc(indexNode), memberNode, execCxt);
    if (!Var.isVar(indexNode) && Var.isVar(memberNode))
        return getByIndex(graph, binding, listNode, indexNode, Var.alloc(memberNode), execCxt);
    if (!Var.isVar(indexNode) && !Var.isVar(memberNode))
        return testSlotValue(graph, binding, listNode, indexNode, memberNode, execCxt);
    return findIndexMember(graph, binding, listNode, Var.alloc(indexNode), Var.alloc(memberNode), execCxt);
}

Example 4 with ExprEvalException

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

the class wait method exec.

@Override
public NodeValue exec(NodeValue nv) {
    if (!nv.isInteger())
        throw new ExprEvalException("Not an integer");
    int x = nv.getInteger().intValue();
    Lib.sleep(x);
    return NodeValue.TRUE;
}

Example 5 with ExprEvalException

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

the class localname method exec.

@Override
public NodeValue exec(NodeValue v) {
    Node n = v.asNode();
    if (!n.isURI())
        throw new ExprEvalException("Not a URI: " + FmtUtils.stringForNode(n));
    String str = n.getLocalName();
    return NodeValue.makeString(str);
}