sa

public
    ResponseEntity<Void> createPhotoContribution(
            @ApiParam(value = "The movie ID", required = true)
            @PathVariable("id") final Long id,
            @ApiParam(value = "Elements to be added")
            @RequestPart(required = false) List<MultipartFile> elementsToAdd,
            @ApiParam(value = "Element IDs to be updated")
            @RequestParam(required = false) Set<Long> idsToUpdate,
            @ApiParam(value = "Element to be updated")
            @RequestPart(required = false) List<MultipartFile> elementsToUpdate,
            @ApiParam(value = "Element IDs to be deleted")
            @RequestParam(required = false) Set<Long> idsToDelete,
            @ApiParam(value = "Sources of information(elements)", required = true)
            @RequestParam final Set<String> sources,
            @ApiParam(value = "Comment from the user")
            @RequestParam(required = false) final String comment
    ) throws IOException {
        log.info("Called with id {}, elementsToAdd {}, idsToUpdate {}, elementsToUpdate{}, idsToDelete {}," +
                        " sources {}, comment {}",
                id, elementsToAdd, idsToUpdate, elementsToUpdate, idsToDelete, sources, comment);

        if(elementsToAdd == null) { elementsToAdd = new ArrayList<>(); }
        if(idsToUpdate == null) { idsToUpdate = new HashSet<>(); }
        if(elementsToUpdate == null) { elementsToUpdate = new ArrayList<>(); }
        if(idsToDelete == null) { idsToDelete = new HashSet<>(); }

        final Set<Long> allIds = Stream.concat(idsToUpdate.stream(), idsToDelete.stream()).collect(Collectors.toSet());
        for(final Long idd : allIds) {
            if(!this.movieSearchService.existsPhoto(id, idd, DataStatus.ACCEPTED)) {
                throw new ResourceNotFoundException("No element found with id " + idd);
            }
        }

        final List<PhotoRequest> listPhotos = new ArrayList<>();
        for(final MultipartFile multipartFile : elementsToAdd) {
            final String idInCloud = this.storageService.save(FileUtils.convert(multipartFile), multipartFile.getContentType());
            final PhotoRequest.Builder builder = new PhotoRequest.Builder(
                    idInCloud
            );
            listPhotos.add(builder.build());
        }

        final HashMap<Long, PhotoRequest> mapPhotos = new HashMap<>();
        final Iterator<Long> longIterator = idsToUpdate.iterator();
        final Iterator<MultipartFile> multipartFileIterator = elementsToUpdate.iterator();
        if(idsToUpdate.size() == elementsToUpdate.size()) {
            while(longIterator.hasNext() && multipartFileIterator.hasNext()) {
                final Long photoId = longIterator.next();
                final MultipartFile multipartFile = multipartFileIterator.next();
                final String idInCloud = this.storageService.save(FileUtils.convert(multipartFile), multipartFile.getContentType());
                final PhotoRequest.Builder builder = new PhotoRequest.Builder(
                        idInCloud
                );
                mapPhotos.put(photoId , builder.build());
            }
        }

        final ContributionNew<PhotoRequest> contribution = new ContributionNew<>();
        contribution.setElementsToAdd(listPhotos);
        contribution.setElementsToUpdate(mapPhotos);
        contribution.setIdsToDelete(idsToDelete);
        contribution.setSources(sources);

        final Long cId = this.movieContributionPersistenceService.createPhotoContribution(contribution, id, "d427d119-1c3d-4435-8f6d-5c8dd35a45b5");

        final HttpHeaders httpHeaders = new HttpHeaders();
        httpHeaders.setLocation(
                MvcUriComponentsBuilder
                        .fromMethodName(MovieContributionRestController.class, "getReviewContribution", cId)
                        .buildAndExpand(cId)
                        .toUri()
        );

        return new ResponseEntity<>(httpHeaders, HttpStatus.CREATED);
    }