Map<String, FileItem> files = null;
Map<String, String> fields = null;
if(actionRequest.getContentType() != null && actionRequest.getContentType().startsWith("multipart/form-data")) {
files = new HashMap<String, FileItem>();
fields = new HashMap<String, String>();
PortletFileUpload request = new PortletFileUpload(new DiskFileItemFactory());
try {
List<FileItem> items = request.parseRequest(actionRequest);
for (FileItem item : items) {
if (item.isFormField()) {
if (item.getFieldName().equals(MODE_KEY)) {
mode = item.getString();
}