Examples with ARQInternalErrorException org.apache.jena.sparql.ARQInternalErrorException used on opensource projects

Example 1 with ARQInternalErrorException

use of org.apache.jena.sparql.ARQInternalErrorException in project jena by apache.

the class VarExprList method add.

public void add(Var var, Expr expr) {
    if (expr == null) {
        add(var);
        return;
    }
    if (var == null)
        throw new ARQInternalErrorException("Attempt to add a named expression with a null variable");
    if (exprs.containsKey(var))
        throw new ARQInternalErrorException("Attempt to assign an expression again");
    add(var);
    exprs.put(var, expr);
}

Example 2 with ARQInternalErrorException

use of org.apache.jena.sparql.ARQInternalErrorException in project jena by apache.

the class Loader method loadClass.

public static Class<?> loadClass(String classNameOrURI, Class<?> requiredClass) {
    if (classNameOrURI == null)
        throw new ARQInternalErrorException("Null classNameorIRI");
    if (classNameOrURI.startsWith("http:"))
        return null;
    if (classNameOrURI.startsWith("urn:"))
        return null;
    String className = classNameOrURI;
    if (classNameOrURI.startsWith(ARQConstants.javaClassURIScheme))
        className = classNameOrURI.substring(ARQConstants.javaClassURIScheme.length());
    Class<?> classObj = null;
    try {
        classObj = Class.forName(className);
    } catch (ClassNotFoundException ex) {
        // It is possible that when coming from a URI we might have
        // characters which aren't valid as Java identifiers
        // We should see if we can load the class with the escaped class
        // name instead
        String baseUri = className.substring(0, className.lastIndexOf('.') + 1);
        String escapedClassName = escape(className.substring(className.lastIndexOf('.') + 1));
        try {
            classObj = Class.forName(baseUri + escapedClassName);
        } catch (ClassNotFoundException innerEx) {
        // Ignore, handled in the outer catch
        }
        if (classObj == null) {
            Log.warn(Loader.class, "Class not found: " + className);
            return null;
        }
    }
    if (requiredClass != null && !requiredClass.isAssignableFrom(classObj)) {
        Log.warn(Loader.class, "Class '" + className + "' found but not a " + Lib.classShortName(requiredClass));
        return null;
    }
    return classObj;
}

Example 3 with ARQInternalErrorException

use of org.apache.jena.sparql.ARQInternalErrorException in project jena by apache.

the class FmtUtils method checkValidPrefixName.

private static boolean checkValidPrefixName(String prefixedName) {
    // Split it to get the parts.
    int i = prefixedName.indexOf(':');
    if (i < 0)
        throw new ARQInternalErrorException("Broken short form -- " + prefixedName);
    String p = prefixedName.substring(0, i);
    String x = prefixedName.substring(i + 1);
    // Check legality
    if (checkValidPrefix(p) && checkValidLocalname(x))
        return true;
    return false;
}

Example 4 with ARQInternalErrorException

use of org.apache.jena.sparql.ARQInternalErrorException in project jena by apache.

the class PathLib method existsPath.

private static int existsPath(Graph graph, Node subject, Path path, final Node object, ExecutionContext execCxt) {
    if (!subject.isConcrete() || !object.isConcrete())
        throw new ARQInternalErrorException("Non concrete node for existsPath evaluation");
    Iterator<Node> iter = PathEval.eval(graph, subject, path, execCxt.getContext());
    Predicate<Node> filter = node -> Objects.equals(node, object);
    // See if we got to the node we're interested in finishing at.
    iter = Iter.filter(iter, filter);
    long x = Iter.count(iter);
    return (int) x;
}

Example 5 with ARQInternalErrorException

use of org.apache.jena.sparql.ARQInternalErrorException in project jena by apache.

the class FunctionBase method exec.

@Override
public NodeValue exec(Binding binding, ExprList args, String uri, FunctionEnv env) {
    if (args == null)
        // The contract on the function interface is that this should not happen.
        throw new ARQInternalErrorException("FunctionBase: Null args list");
    List<NodeValue> evalArgs = new ArrayList<>();
    for (Expr e : args) {
        NodeValue x = e.eval(binding, env);
        evalArgs.add(x);
    }
    NodeValue nv = exec(evalArgs);
    return nv;
}