protected void doGet()

in src/main/java/org/apache/sling/thumbnails/internal/TransformServlet.java [109:142]
32 lines of code
4 McCabe index (conditional complexity)

    protected void doGet(SlingHttpServletRequest request, SlingHttpServletResponse response)
            throws ServletException, IOException {
        log.trace("doGet");

        String transformationName = StringUtils.substringBeforeLast(request.getRequestPathInfo().getSuffix(), ".");
        String renditionName = request.getRequestPathInfo().getSuffix();
        String format = StringUtils.substringAfterLast(request.getRequestPathInfo().getSuffix(), ".");
        response.setHeader("Content-Disposition", "filename=" + request.getResource().getName());

        log.debug("Transforming resource: {} with transformation: {} to {}", request.getResource(), transformationName,
                format);
        try {
            Resource file = request.getResource();
            if (renditionSupport.renditionExists(file, renditionName)) {
                response.setContentType(OutputFileFormat.forRequest(request).getMimeType());
                IOUtils.copy(renditionSupport.getRenditionContent(file, renditionName), response.getOutputStream());
            } else {
                try (ResourceResolver servicResolver = transformationServiceUser.getTransformationServiceUser()) {
                    performTransformation(request, response, transformationName, renditionName, servicResolver);
                }
            }
        } catch (BadRequestException e) {
            log.error("Could not render thumbnail due to bad request", e);
            response.sendError(400, "Could not render thumbnail due to bad request: " + e.getMessage());
        } catch (Exception e) {
            log.error("Exception rendering transformed resource", e);
            response.setStatus(500);
            RequestDispatcherOptions op = new RequestDispatcherOptions();
            op.setReplaceSuffix(thumbnailSupport.getServletErrorSuffix());
            op.setReplaceSelectors("transform");
            RequestDispatcher disp = request.getRequestDispatcher(thumbnailSupport.getServletErrorResourcePath(), op);
            disp.forward(request, response);
        }
    }