class UploadDownloadHelper {

    public void validateAndTrimDownloadBusinessObjectDataStorageFileSingleInitiationRequest(
        DownloadBusinessObjectDataStorageFileSingleInitiationRequest downloadBusinessObjectDataStorageFileSingleInitiationRequest)
    {
        Assert.notNull(downloadBusinessObjectDataStorageFileSingleInitiationRequest,
            "A download business object data storage file single initiation request must be specified.");
        validateAndTrimBusinessObjectDataStorageFileKey(
            downloadBusinessObjectDataStorageFileSingleInitiationRequest.getBusinessObjectDataStorageFileKey());
    }

}