private static Object callOperation(
QvtOperationalEvaluationEnv evalEnv,
LibraryOperation libOp,
Object source,
Object[] args,
Class<?> returnClass) {
if (source == null || source == CallHandlerAdapter.getInvalidResult(evalEnv)) {
return CallHandlerAdapter.getInvalidResult(evalEnv);
}
// reset OclInvalid to 'null'
Object[] callArgs = null;
if (args != null) {
for (int i = 0; i < args.length; i++) {
if (evalEnv.isOclInvalid(args[i])) {
if (callArgs == null) {
callArgs = new Object[args.length];
System.arraycopy(args, 0, callArgs, 0, args.length);
}
callArgs[i] = null;
}
}
callArgs = (callArgs == null) ? args : callArgs;
}
Object result = libOp.run(source, callArgs, new Object[0], returnClass);
if (result == null) {
return QvtOperationalUtil.getInvalid(evalEnv);
}
return result;
}
