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

Example 11 with ExprEvalException

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

the class FunctionBase3 method exec.

@Override
public final NodeValue exec(List<NodeValue> args) {
    if (args == null)
        // The contract on the function interface is that this should not happen.
        throw new ARQInternalErrorException(Lib.className(this) + ": Null args list");
    if (args.size() != 3)
        throw new ExprEvalException(Lib.className(this) + ": Wrong number of arguments: Wanted 3, got " + args.size());
    NodeValue v1 = args.get(0);
    NodeValue v2 = args.get(1);
    NodeValue v3 = args.get(2);
    return exec(v1, v2, v3);
}

Example 12 with ExprEvalException

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

the class FunctionBase4 method exec.

@Override
public final NodeValue exec(List<NodeValue> args) {
    if (args == null)
        // The contract on the function interface is that this should not happen.
        throw new ARQInternalErrorException(Lib.className(this) + ": Null args list");
    if (args.size() != 4)
        throw new ExprEvalException(Lib.className(this) + ": Wrong number of arguments: Wanted 4, got " + args.size());
    NodeValue v1 = args.get(0);
    NodeValue v2 = args.get(1);
    NodeValue v3 = args.get(2);
    NodeValue v4 = args.get(3);
    return exec(v1, v2, v3, v4);
}

Example 13 with ExprEvalException

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

the class NodeFunctions method checkTwoArgumentStringLiterals.

/**
     * Check for string operations with primary first arg and second second arg
     * (e.g. CONTAINS).  The arguments are not used in the same way and the check
     * operation is not symmetric. 
     * <li> "abc"@en is compatible with "abc"
     * <li> "abc" is NOT compatible with "abc"@en
     */
public static void checkTwoArgumentStringLiterals(String label, NodeValue arg1, NodeValue arg2) {
    /* Quote the spec:
         * Compatibility of two arguments is defined as:
         *    The arguments are simple literals or literals typed as xsd:string
         *    The arguments are plain literals with identical language tags
         *    The first argument is a plain literal with language tag and the second argument is a simple literal or literal typed as xsd:string
         */
    Node n1 = checkAndGetStringLiteral(label, arg1);
    Node n2 = checkAndGetStringLiteral(label, arg2);
    String lang1 = n1.getLiteralLanguage();
    String lang2 = n2.getLiteralLanguage();
    if (lang1 == null)
        lang1 = "";
    if (lang2 == null)
        lang2 = "";
    // Case 1
    if (lang1.equals("")) {
        if (lang2.equals(""))
            return;
        throw new ExprEvalException(label + ": Incompatible: " + arg1 + " and " + arg2);
    }
    // Case 2
    if (lang1.equalsIgnoreCase(lang2))
        return;
    // Case 3
    if (lang2.equals(""))
        return;
    throw new ExprEvalException(label + ": Incompatible: " + arg1 + " and " + arg2);
// ----------
//                if ( lang1.equals("") && !lang2.equals("") )
//            throw new ExprEvalException(label + ": Incompatible: " + arg1 + " and " + arg2) ;
//        
//        
//        
//        if ( n1.getLiteralDatatype() != null ) {
//            // n1 is an xsd string by checkAndGetString
//            if ( XSDDatatype.XSDstring.equals(n2.getLiteralDatatypeURI()) )
//                return ;
//            if ( n2.getLiteralLanguage().equals("") )
//                return ;
//            throw new ExprEvalException(label + ": Incompatible: " + arg1 + " and " + arg2) ;
//        }
//
//        // Incompatible?
//        // arg1 simple or xsd:string, arg2 has a lang.
//        // arg1 with lang, arg2 has a different lang.
//        if ( !lang1.equals("") && (!lang2.equals("") && !lang1.equals(lang2)) )
//            throw new ExprEvalException(label + ": Incompatible: " + arg1 + " and " + arg2) ;
}

Example 14 with ExprEvalException

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

the class NodeFunctions method checkAndGetStringLiteral.

// Helper functions
/**
     * check and get a string (may be a simple literal, literal with language
     * tag or an XSD string).
     */
public static Node checkAndGetStringLiteral(String label, NodeValue nv) {
    Node n = nv.asNode();
    if (!n.isLiteral())
        throw new ExprEvalException(label + ": Not a literal: " + nv);
    String lang = n.getLiteralLanguage();
    if (NodeUtils.isLangString(n))
        // Language tag.  Legal.  
        return n;
    if (nv.isString())
        return n;
    throw new ExprEvalException(label + ": Not a string literal: " + nv);
}

Example 15 with ExprEvalException

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

the class AccStatBase method accumulate.

@Override
protected void accumulate(NodeValue nv, Binding binding, FunctionEnv functionEnv) {
    // shifted_data_variance
    if (nv.isNumber()) {
        double d = nv.getDouble();
        count++;
        if (count == 1) {
            K = d;
            // == 0 of K set.
            sum = (d - K);
            // == 0
            sumSquared = (d - K) * (d - K);
            return;
        } else {
            double dk = (d - K);
            double dk2 = dk * dk;
            sum = sum + dk;
            sumSquared = sumSquared + dk2;
        }
    } else
        throw new ExprEvalException("Not a number: " + nv);
}