/** * Fulfill the ResourceCollection interface. * @return an Iterator of Resources. * @since Ant 1.7 */ @Override public Iterator<Resource> iterator() { if (isReference()) { return getRef().iterator(); } dieOnCircularReference(); Stream<Resource> result = getPropertyNames(getEffectiveProperties()) .stream().map(name -> new PropertyResource(getProject(), name)); Optional<FileNameMapper> m = Optional.ofNullable(getMapper()).map(Mapper::getImplementation); if (m.isPresent()) { result = result.map(p -> new MappedResource(p, m.get())); } return result.iterator(); }
final Mapper myMapper = getMapper(); final FileNameMapper m = myMapper == null ? null : myMapper.getImplementation();