How to use

loadClass

method

in

org.apache.jena.sparql.util.ClsLoader

static public Class<?> loadClass(String classNameOrURI) {
  return loadClass(classNameOrURI, null);
}

public static Class<?> loadClass(String uri, Class<?> expectedClass) {
  String mappedUri = mapDynamicURI(uri);
  if (mappedUri == null)
    return null;
  return ClsLoader.loadClass(mappedUri, expectedClass);
}

static public Object loadAndInstantiate(String uri, Class<?> requiredClass) {
  Class<?> classObj = loadClass(uri, requiredClass);
  if (classObj == null)
    return null;
  Object module = null;
  try {
    module = classObj.newInstance();
  } catch (Exception ex) {
    String className = uri.substring(ARQConstants.javaClassURIScheme.length());
    Log.warn(ClsLoader.class, "Exception during instantiation '" + className + "': " + ex.getMessage());
    return null;
  }
  return module;
}

Class<?> c = ClsLoader.loadClass(textDocProducerNode.getURI(), TextDocProducer.class) ;

Class<?> c = ClsLoader.loadClass(textDocProducerNode.getURI(), TextDocProducer.class) ;