public CmisObject CreateDocument(string repositoryId, NCMIS.ObjectModel.CmisProperties properties, string folderId, NCMIS.ObjectModel.ContentStream contentStream)
        {
            FolderObjectService folderObjectService = (FolderObjectService)ObjectService.GetService(typeof(Folder));

            if (folderObjectService.IsSystemFolder(folderId))
            {
                throw new Exception("Could not create document under system folder.");
            }
            Kooboo.CMS.Content.Models.Repository repository = new Repository(repositoryId);


            string objectId = folderId;

            folderObjectService.TryPraseObjectId(folderId, out folderId);
            var folder = CmisFolderHelper.Parse(repository, folderId);

            if (folder is TextFolder)
            {
                var textFolder = (TextFolder)folder.AsActual();

                var content = Services.ServiceFactory.TextContentManager.Add(repository, textFolder, UserId, properties.ToNameValueCollection(), contentStream.ToFileCollection(), null);

                return(ObjectConvertor.ToCmis(content, false));
            }
            else if (folder is MediaFolder)
            {
                var mediaFolder = (MediaFolder)folder.AsActual();
                if (contentStream != null)
                {
                    var content = Services.ServiceFactory.MediaContentManager.Add(repository, mediaFolder, UserId, contentStream.Filename, new MemoryStream(contentStream.Stream));
                    return(ObjectConvertor.ToCmis(content, false));
                }
            }
            return(ObjectConvertor.EmptyCmisObject());
        }