public static final <T> T instantiate(String clazzname, Object... constructorArgs) {
try {
Class clazz = Class.forName(clazzname);
Constructor constructor = clazz.getConstructor(Configuration.class);
T instance = (T) constructor.newInstance(constructorArgs);
return instance;
} catch (ClassNotFoundException e) {
throw new IllegalArgumentException("Could not find implementation class: " + clazzname);
} catch (NoSuchMethodException e) {
throw new IllegalArgumentException(
"Configured backend implementation does not have required constructor: " + clazzname);
} catch (InstantiationException e) {
throw new IllegalArgumentException("Could not instantiate implementation: " + clazzname, e);
} catch (IllegalAccessException e) {
throw new IllegalArgumentException("Could not instantiate implementation: " + clazzname, e);
} catch (InvocationTargetException e) {
throw new IllegalArgumentException("Could not instantiate implementation: " + clazzname, e);
} catch (ClassCastException e) {
throw new IllegalArgumentException("Could not instantiate implementation: " + clazzname, e);
}
}
