*/
private String helperReadDigoToString(String fileRef) throws IOException, DigitalObjectNotFoundException, URISyntaxException{
DataRegistry digoManager = DataRegistryFactory.getDataRegistry();
URI uriRef = new URI(fileRef);
this.log.info("Retrieving Digital Object at " + uriRef);
DigitalObject xmlTemplateDigo = digoManager.retrieve(new URI(fileRef));
BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(xmlTemplateDigo.getContent().getInputStream()));
StringBuilder stringBuilder = new StringBuilder();
String line = null;
while ((line = bufferedReader.readLine()) != null) {