Examples with ResponseStreams ninja.utils.ResponseStreams used on opensource projects

Example 1 with ResponseStreams

use of ninja.utils.ResponseStreams in project ninja by ninjaframework.

the class DiagnosticErrorRenderer method renderResult.

public void renderResult(Context context, Result result) throws IOException {
    String out = render();
    // set context response content type
    result.contentType("text/html");
    result.charset("utf-8");
    ResponseStreams responseStreams = context.finalizeHeaders(result);
    try (Writer w = responseStreams.getWriter()) {
        w.write(out);
        w.flush();
        w.close();
    }
}

Example 2 with ResponseStreams

use of ninja.utils.ResponseStreams in project ninja by ninjaframework.

the class Result method renderRaw.

/**
     * This method directly renders the byte array to the output. It
     * completely bypasses any rendering engine.
     * 
     * Thus you can render anything you want.
     * 
     * Chaining of resultRaw().resultRaw()... is NOT supported. Mixing with render()
     * is NOT supported.
     * 
     * It is always recommended to implement your own RenderingEngine OR
     * use existing rendering engines.
     * 
     * @param bytes The bytes to render.
     * @return A result that will render the string directly to the output stream.
     */
public Result renderRaw(final byte[] bytes) {
    Renderable renderable = new Renderable() {

        @Override
        public void render(Context context, Result result) {
            if (result.getContentType() == null) {
                result.contentType(Result.APPLICATION_OCTET_STREAM);
            }
            ResponseStreams responseStreams = context.finalizeHeaders(result);
            try (OutputStream outputStream = responseStreams.getOutputStream()) {
                outputStream.write(bytes);
            } catch (IOException ioException) {
                throw new InternalServerErrorException(ioException);
            }
        }
    };
    render(renderable);
    return this;
}

Example 3 with ResponseStreams

use of ninja.utils.ResponseStreams in project ninja by ninjaframework.

the class UploadController method uploadFinish.

/**
     * 
     * This upload method expects a file and simply displays the file in the
     * multipart upload again to the user (in the correct mime encoding).
     * 
     * @param context
     * @return
     * @throws Exception
     */
public Result uploadFinish(Context context) throws Exception {
    // we are using a renderable inner class to stream the input again to
    // the user
    Renderable renderable = new Renderable() {

        @Override
        public void render(Context context, Result result) {
            try {
                // make sure the context really is a multipart context...
                if (context.isMultipart()) {
                    // This is the iterator we can use to iterate over the
                    // contents
                    // of the request.
                    FileItemIterator fileItemIterator = context.getFileItemIterator();
                    while (fileItemIterator.hasNext()) {
                        FileItemStream item = fileItemIterator.next();
                        String name = item.getFieldName();
                        InputStream stream = item.openStream();
                        String contentType = item.getContentType();
                        if (contentType != null) {
                            result.contentType(contentType);
                        } else {
                            contentType = mimeTypes.getMimeType(name);
                        }
                        ResponseStreams responseStreams = context.finalizeHeaders(result);
                        if (item.isFormField()) {
                            System.out.println("Form field " + name + " with value " + Streams.asString(stream) + " detected.");
                        } else {
                            System.out.println("File field " + name + " with file name " + item.getName() + " detected.");
                            // Process the input stream
                            ByteStreams.copy(stream, responseStreams.getOutputStream());
                        }
                    }
                }
            } catch (IOException | FileUploadException exception) {
                throw new InternalServerErrorException(exception);
            }
        }
    };
    return new Result(200).render(renderable);
}

Example 4 with ResponseStreams

use of ninja.utils.ResponseStreams in project ninja by ninjaframework.

the class TemplateEngineFreemarkerTest method before.

@Before
public void before() throws Exception {
    //Setup that allows to to execute invoke(...) in a very minimal version.
    when(ninjaProperties.getWithDefault(FREEMARKER_CONFIGURATION_FILE_SUFFIX, ".ftl.html")).thenReturn(".ftl.html");
    templateEngineFreemarker = new TemplateEngineFreemarker(messages, lang, logger, templateEngineHelper, templateEngineManager, templateEngineFreemarkerReverseRouteMethod, templateEngineFreemarkerAssetsAtMethod, templateEngineFreemarkerWebJarsAtMethod, ninjaProperties);
    when(lang.getLanguage(any(Context.class), any(Optional.class))).thenReturn(Optional.<String>empty());
    Session session = Mockito.mock(Session.class);
    when(session.isEmpty()).thenReturn(true);
    when(context.getSession()).thenReturn(session);
    when(context.getRoute()).thenReturn(route);
    when(lang.getLocaleFromStringOrDefault(any(Optional.class))).thenReturn(Locale.ENGLISH);
    FlashScope flashScope = Mockito.mock(FlashScope.class);
    Map<String, String> flashScopeData = new HashMap<>();
    when(flashScope.getCurrentFlashCookieData()).thenReturn(flashScopeData);
    when(context.getFlashScope()).thenReturn(flashScope);
    when(templateEngineHelper.getTemplateForResult(any(Route.class), any(Result.class), Mockito.anyString())).thenReturn("views/template.ftl.html");
    writer = new StringWriter();
    ResponseStreams responseStreams = mock(ResponseStreams.class);
    when(context.finalizeHeaders(any(Result.class))).thenReturn(responseStreams);
    when(responseStreams.getWriter()).thenReturn(writer);
}

Example 5 with ResponseStreams

use of ninja.utils.ResponseStreams in project ninja by ninjaframework.

the class TemplateEngineJsonP method invoke.

@Override
public void invoke(Context context, Result result) {
    ResponseStreams responseStreams = context.finalizeHeaders(result);
    String callback = getCallbackName(context);
    try (OutputStream outputStream = responseStreams.getOutputStream()) {
        objectMapper.writeValue(outputStream, new JSONPObject(callback, result.getRenderable()));
    } catch (IOException e) {
        logger.error("Error while rendering jsonp.", e);
    }
}