code: public static StreamingOutput buildResponseOfDomLR(final IStorage pDatabase,
          final IBackendFactory pStorageFac, final IRevisioning pRevision) {
  
          final StreamingOutput sOutput = new StreamingOutput() {
  
              @Override
              public void write(final OutputStream output) throws IOException, WebApplicationException {
                  Document document;
                  try {
                      document = createSurroundingXMLResp();
                      final Element resElement = RESTResponseHelper.createResultElement(document);
  
                      List<Element> collections;
                      try {
                          collections =
                              RESTResponseHelper.createCollectionElementDBs(pDatabase, document, pStorageFac,
                                  pRevision);
                      } catch (final TTException exce) {
                          throw new WebApplicationException(exce);
                      }
                      for (final Element resource : collections) {
                          resElement.appendChild(resource);
                      }
                      document.appendChild(resElement);
                      final DOMSource domSource = new DOMSource(document);
                      final StreamResult streamResult = new StreamResult(output);
                      final Transformer transformer = TransformerFactory.newInstance().newTransformer();
                      transformer.transform(domSource, streamResult);
  
                  } catch (final ParserConfigurationException exce) {
                      throw new WebApplicationException(exce);
                  } catch (final TransformerConfigurationException exce) {
                      throw new WebApplicationException(exce);
                  } catch (final TransformerFactoryConfigurationError exce) {
                      throw new WebApplicationException(exce);
                  } catch (final TransformerException exce) {
                      throw new WebApplicationException(exce);
                  }
              }
          };
  
          return sOutput;
      }
docs: This method builds the overview for the resources and collection we offer
  in our implementation.
  
  @param pDatabase
  path to the storage
  @param pStorageFac
  factory for creating backends
  @param pRevision
  revision algorithm utilized
  @return The streaming output for the HTTP response body.