protected WOResponse _generateResponseForInputStream(InputStream is, long length, String type) {
   WOResponse response = application.createResponseInContext(null);
   if (is != null) {
     if (length != 0) {
       response.setContentStream(is, 50 * 1024, length);
     }
   } else {
     response.setStatus(404);
   }
   if (type != null) {
     response.setHeader(type, "content-type");
   }
   if (length != 0) {
     response.setHeader("" + length, "content-length");
   }
   return response;
 }
  @Override
  public WOResponse handleRequest(WORequest request) {
    int bufferSize = 16384;

    WOApplication application = WOApplication.application();
    application.awake();
    try {
      WOContext context = application.createContextForRequest(request);
      WOResponse response = application.createResponseInContext(context);

      String sessionIdKey = application.sessionIdKey();
      String sessionId = (String) request.formValueForKey(sessionIdKey);
      if (sessionId == null) {
        sessionId = request.cookieValueForKey(sessionIdKey);
      }
      context._setRequestSessionID(sessionId);
      if (context._requestSessionID() != null) {
        application.restoreSessionWithID(sessionId, context);
      }

      try {
        final WODynamicURL url = request._uriDecomposed();
        final String requestPath = url.requestHandlerPath();
        final Matcher idMatcher = Pattern.compile("^id/(\\d+)/").matcher(requestPath);

        final Integer requestedAttachmentID;
        String requestedWebPath;

        final boolean requestedPathContainsAnAttachmentID = idMatcher.find();
        if (requestedPathContainsAnAttachmentID) {
          requestedAttachmentID = Integer.valueOf(idMatcher.group(1));
          requestedWebPath = idMatcher.replaceFirst("/");
        } else {
          // MS: This is kind of goofy because we lookup by path, your web path needs to
          // have a leading slash on it.
          requestedWebPath = "/" + requestPath;
          requestedAttachmentID = null;
        }

        try {
          InputStream attachmentInputStream;
          String mimeType;
          String fileName;
          long length;
          String queryString = url.queryString();
          boolean proxyAsAttachment =
              (queryString != null && queryString.contains("attachment=true"));

          EOEditingContext editingContext = ERXEC.newEditingContext();
          editingContext.lock();

          try {
            ERAttachment attachment =
                fetchAttachmentFor(editingContext, requestedAttachmentID, requestedWebPath);

            if (_delegate != null && !_delegate.attachmentVisible(attachment, request, context)) {
              throw new SecurityException("You are not allowed to view the requested attachment.");
            }
            mimeType = attachment.mimeType();
            length = attachment.size().longValue();
            fileName = attachment.originalFileName();
            ERAttachmentProcessor<ERAttachment> attachmentProcessor =
                ERAttachmentProcessor.processorForType(attachment);
            if (!proxyAsAttachment) {
              proxyAsAttachment = attachmentProcessor.proxyAsAttachment(attachment);
            }
            InputStream rawAttachmentInputStream =
                attachmentProcessor.attachmentInputStream(attachment);
            attachmentInputStream = new BufferedInputStream(rawAttachmentInputStream, bufferSize);
          } finally {
            editingContext.unlock();
          }

          response.setHeader(mimeType, "Content-Type");
          response.setHeader(String.valueOf(length), "Content-Length");

          if (proxyAsAttachment) {
            response.setHeader("attachment; filename=\"" + fileName + "\"", "Content-Disposition");
          }

          response.setStatus(200);
          response.setContentStream(attachmentInputStream, bufferSize, length);
        } catch (SecurityException e) {
          NSLog.out.appendln(e);
          response.setContent(e.getMessage());
          response.setStatus(403);
        } catch (NoSuchElementException e) {
          NSLog.out.appendln(e);
          response.setContent(e.getMessage());
          response.setStatus(404);
        } catch (FileNotFoundException e) {
          NSLog.out.appendln(e);
          response.setContent(e.getMessage());
          response.setStatus(404);
        } catch (IOException e) {
          NSLog.out.appendln(e);
          response.setContent(e.getMessage());
          response.setStatus(500);
        }

        return response;
      } finally {
        if (context._requestSessionID() != null) {
          WOApplication.application().saveSessionForContext(context);
        }
      }
    } finally {
      application.sleep();
    }
  }