public static BaseFileEntry UpdateObjectFromJsonString(String jsonMessage, BaseFileEntry objectToUpdate, IStorageProviderService service, IStorageProviderSession session)
        {
            // verify if we have a directory or a file
            var jc = new JsonHelper();
            if (!jc.ParseJsonMessage(jsonMessage))
                throw new SharpBoxException(SharpBoxErrorCodes.ErrorInvalidFileOrDirectoryName);

            var isDir = jc.GetBooleanProperty("is_dir");

            // create the entry
            BaseFileEntry dbentry;
            Boolean bEntryOk;

            if (isDir)
            {
                if (objectToUpdate == null)
                    dbentry = new BaseDirectoryEntry("Name", 0, DateTime.Now, service, session);
                else
                    dbentry = objectToUpdate as BaseDirectoryEntry;

                bEntryOk = BuildDirectyEntry(dbentry as BaseDirectoryEntry, jc, service, session);
            }
            else
            {
                if (objectToUpdate == null)
                    dbentry = new BaseFileEntry("Name", 0, DateTime.Now, service, session);
                else
                    dbentry = objectToUpdate;

                bEntryOk = BuildFileEntry(dbentry, jc);
            }

            // parse the childs and fill the entry as self
            if (!bEntryOk)
                throw new SharpBoxException(SharpBoxErrorCodes.ErrorCouldNotContactStorageService);

            // set the is deleted flag
            try
            {
                // try to read the is_deleted property
                dbentry.IsDeleted = jc.GetBooleanProperty("is_deleted");
            }
            catch (Exception)
            {
                // the is_deleted proprty is missing (so it's not a deleted file or folder)
                dbentry.IsDeleted = false;
            }

            // return the child
            return dbentry;
        }
        private static Boolean BuildDirectyEntry(BaseDirectoryEntry dirEntry, JsonHelper jh, IStorageProviderService service, IStorageProviderSession session)
        {
            // build the file entry part 
            if (!BuildFileEntry(dirEntry, jh))
                return false;

            // now take the content 
            var content = jh.GetListProperty("contents");

            if (content.Count == 0)
                return true;

            // remove all childs
            dirEntry.ClearChilds();

            // add the childs
            foreach (var jsonContent in content)
            {
                // parse the item
                var jc = new JsonHelper();
                if (!jc.ParseJsonMessage(jsonContent))
                    continue;

                // check if we have a directory
                var isDir = jc.GetBooleanProperty("is_dir");

                BaseFileEntry fentry;

                if (isDir)
                {
                    fentry = new BaseDirectoryEntry("Name", 0, DateTime.Now, service, session);
                }
                else
                {
                    fentry = new BaseFileEntry("Name", 0, DateTime.Now, service, session);
                }

                // build the file attributes
                BuildFileEntry(fentry, jc);

                // establish parent child realtionship
                dirEntry.AddChild(fentry);
            }

            // set the length
            dirEntry.Length = dirEntry.Count;

            // go ahead
            return true;
        }