private void writeResponse(GridFSDBFile file, HttpServletResponse response) throws IOException {
if (file != null) {
byte[] data = IOUtils.toByteArray(file.getInputStream());
response.setContentType(file.getContentType());
response.setContentLength((int) file.getLength());
response.getOutputStream().write(data);
response.getOutputStream().flush();
} else {
response.setStatus(HttpStatus.NOT_FOUND.value());
}
}
