Examples with RequestPartServletServerHttpRequest org.springframework.web.multipart.support.RequestPartServletServerHttpRequest used on opensource projects

Example 1 with RequestPartServletServerHttpRequest

use of org.springframework.web.multipart.support.RequestPartServletServerHttpRequest in project spring-framework by spring-projects.

the class RequestPartMethodArgumentResolver method resolveArgument.

@Override
@Nullable
public Object resolveArgument(MethodParameter parameter, @Nullable ModelAndViewContainer mavContainer, NativeWebRequest request, @Nullable WebDataBinderFactory binderFactory) throws Exception {
    HttpServletRequest servletRequest = request.getNativeRequest(HttpServletRequest.class);
    Assert.state(servletRequest != null, "No HttpServletRequest");
    RequestPart requestPart = parameter.getParameterAnnotation(RequestPart.class);
    boolean isRequired = ((requestPart == null || requestPart.required()) && !parameter.isOptional());
    String name = getPartName(parameter, requestPart);
    parameter = parameter.nestedIfOptional();
    Object arg = null;
    Object mpArg = MultipartResolutionDelegate.resolveMultipartArgument(name, parameter, servletRequest);
    if (mpArg != MultipartResolutionDelegate.UNRESOLVABLE) {
        arg = mpArg;
    } else {
        try {
            HttpInputMessage inputMessage = new RequestPartServletServerHttpRequest(servletRequest, name);
            arg = readWithMessageConverters(inputMessage, parameter, parameter.getNestedGenericParameterType());
            if (binderFactory != null) {
                WebDataBinder binder = binderFactory.createBinder(request, arg, name);
                if (arg != null) {
                    validateIfApplicable(binder, parameter);
                    if (binder.getBindingResult().hasErrors() && isBindExceptionRequired(binder, parameter)) {
                        throw new MethodArgumentNotValidException(parameter, binder.getBindingResult());
                    }
                }
                if (mavContainer != null) {
                    mavContainer.addAttribute(BindingResult.MODEL_KEY_PREFIX + name, binder.getBindingResult());
                }
            }
        } catch (MissingServletRequestPartException | MultipartException ex) {
            if (isRequired) {
                throw ex;
            }
        }
    }
    if (arg == null && isRequired) {
        if (!MultipartResolutionDelegate.isMultipartRequest(servletRequest)) {
            throw new MultipartException("Current request is not a multipart request");
        } else {
            throw new MissingServletRequestPartException(name);
        }
    }
    return adaptArgumentIfNecessary(arg, parameter);
}