if(blobInfo==null) notFound();
response.setContentTypeIfNotSet(blobInfo.getContentType());
FileService fileService = FileServiceFactory.getFileService();
AppEngineFile file = fileService.getBlobFile(blobKey);
boolean lock = false;
FileReadChannel readChannel = fileService.openReadChannel(file, lock);
InputStream inputStream = Channels.newInputStream(readChannel);
renderBinary(inputStream);
}
}