Example usage for javax.servlet.http HttpServletResponse flushBuffer

List of usage examples for javax.servlet.http HttpServletResponse flushBuffer

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Introduction

In this page you can find the example usage for javax.servlet.http HttpServletResponse flushBuffer.

Prototype

public void flushBuffer() throws IOException;

Source Link

Document

Forces any content in the buffer to be written to the client.

Usage

From source file:com.qcadoo.mes.technologies.controller.TechnologyMultiUploadController.java

@RequestMapping(value = "/getAttachment.html", method = RequestMethod.GET)
public final void getAttachment(@RequestParam("id") final Long[] ids, HttpServletResponse response) {
    DataDefinition attachmentDD = dataDefinitionService.get(TechnologiesConstants.PLUGIN_IDENTIFIER,
            TechnologiesConstants.MODEL_TECHNOLOGY_ATTACHMENT);
    Entity attachment = attachmentDD.get(ids[0]);
    InputStream is = fileService/*w  ww  .  j  a  va  2  s .c  om*/
            .getInputStream(attachment.getStringField(TechnologyAttachmentFields.ATTACHMENT));

    try {
        if (is == null) {
            response.sendRedirect("/error.html?code=404");
        }

        response.setHeader("Content-disposition",
                "inline; filename=" + attachment.getStringField(TechnologyAttachmentFields.NAME));
        response.setContentType(
                fileService.getContentType(attachment.getStringField(TechnologyAttachmentFields.ATTACHMENT)));

        int bytes = IOUtils.copy(is, response.getOutputStream());
        response.setContentLength(bytes);

        response.flushBuffer();

    } catch (IOException e) {
        logger.error("Unable to copy attachment file to response stream.", e);
    }
}

From source file:it.cilea.osd.jdyna.web.flow.GestioneAlberoDTO.java

public Event export(RequestContext context) throws Exception {

    DTOGestioneAlberoClassificatore alberoDTO = (DTOGestioneAlberoClassificatore) getFormObject(context);
    ServletExternalContext externalContext = (ServletExternalContext) context.getExternalContext();
    HttpServletResponse response = externalContext.getResponse();

    Integer alberoID = alberoDTO.getId();
    AlberoClassificatorio albero = null;
    if (alberoID != null) {
        albero = applicationService.get(AlberoClassificatorio.class, alberoID);
    }/*from   w ww .  j  a v a 2s. c om*/

    String filename;

    filename = "configurazione-albero_classificatorio_" + albero.getNome().replaceAll(" ", "_") + ".xml";

    response.setContentType("application/xml");
    response.addHeader("Content-Disposition", "attachment; filename=" + filename);

    PrintWriter writer = response.getWriter();
    exportUtils.writeDocTypeANDCustomEditorAlberoClassificatore(writer);

    if (albero != null) {
        exportUtils.alberoClassificatorioToXML(writer, albero);
    }

    response.getWriter().print("</beans>");
    response.flushBuffer();
    return success();
}

From source file:com.crucialticketing.controllers.FileController.java

@RequestMapping(value = "/{filename}/", method = RequestMethod.GET)
@ResponseBody//from   ww w  .jav  a2  s.co m
public void fileDispatcher(@PathVariable(value = "filename") String fileUploadId, HttpServletRequest request,
        HttpServletResponse response, ModelMap map) throws Exception {

    String fileName = request.getServletContext().getRealPath("/WEB-INF/upload/");

    Attachment attachment = attachmentService.getAttachmentById(Integer.valueOf(fileUploadId));

    if (attachment.getFileUploadId() == 0) {
        throw new Exception();
    }

    fileName += "\\" + attachment.getTicket().getTicketId() + "\\" + attachment.getFileName();

    try {
        InputStream in = new BufferedInputStream(new FileInputStream(new File(fileName)));

        String extension = "unknown";

        int i = fileName.lastIndexOf('.');

        if (i > 0) {
            extension = fileName.substring(i + 1);
        }

        response.setContentType("application/" + extension);
        response.setHeader("Content-Disposition", "attachment; filename=" + attachment.getFileName());

        ServletOutputStream out = response.getOutputStream();
        IOUtils.copy(in, out);
        response.flushBuffer();
    } catch (Exception e) {
    }
}

From source file:cn.imethan.common.security.session.ConcurrentSessionFilter.java

public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain)
        throws IOException, ServletException {
    HttpServletRequest request = (HttpServletRequest) req;
    HttpServletResponse response = (HttpServletResponse) res;

    HttpSession session = request.getSession(false);

    if (session != null) {
        SessionInformation info = sessionRegistry.getSessionInformation(session.getId());

        if (info != null) {
            if (info.isExpired()) {
                // Expired - abort processing
                doLogout(request, response);

                String targetUrl = determineExpiredUrl(request, info);

                if (targetUrl != null) {
                    redirectStrategy.sendRedirect(request, response, targetUrl);

                    return;
                } else {
                    response.getWriter()
                            .print("This session has been expired (possibly due to multiple concurrent "
                                    + "logins being attempted as the same user).");
                    response.flushBuffer();
                }/* w ww .  java  2s  .  com*/

                return;
            } else {
                // Non-expired - update last request date/time
                sessionRegistry.refreshLastRequest(info.getSessionId());
            }
        }
    }

    chain.doFilter(request, response);
}

From source file:org.exem.flamingo.web.filesystem.s3.S3BrowserController.java

@RequestMapping(value = "download", method = RequestMethod.GET)
@ResponseStatus(HttpStatus.OK)/*from   w w w . j a v a  2  s. c  o  m*/
public Response download(HttpServletResponse res, @RequestParam String bucketName, @RequestParam String key)
        throws IOException {
    S3Object object = s3BrowserService.getObject(bucketName, key);
    InputStream objectData = object.getObjectContent();

    res.setHeader("Content-Length", "" + object.getObjectMetadata().getContentLength());
    res.setHeader("Content-Transfer-Encoding", "binary");
    res.setHeader("Content-Type", "application/force-download");
    res.setHeader("Content-Disposition",
            MessageFormatter.format("attachment; filename={};", getName(key)).getMessage());
    res.setStatus(200);

    FileCopyUtils.copy(objectData, res.getOutputStream());
    res.flushBuffer();
    objectData.close();

    Response response = new Response();
    response.setSuccess(true);
    return response;
}

From source file:com.qcadoo.mes.cmmsMachineParts.controller.PlannedEventMultiUploadController.java

@RequestMapping(value = "/getAttachmentForPlannedEvent.html", method = RequestMethod.GET)
public final void getAttachment(@RequestParam("id") final Long[] ids, HttpServletResponse response) {
    DataDefinition attachmentDD = dataDefinitionService.get(CmmsMachinePartsConstants.PLUGIN_IDENTIFIER,
            CmmsMachinePartsConstants.MODEL_PLANNED_EVENT_ATTACHMENT);
    Entity attachment = attachmentDD.get(ids[0]);
    InputStream is = fileService//  w  w  w  . j  a v a  2  s  .c o  m
            .getInputStream(attachment.getStringField(PlannedEventAttachmentFields.ATTACHMENT));

    try {
        if (is == null) {
            response.sendRedirect("/error.html?code=404");
        }

        response.setHeader("Content-disposition",
                "inline; filename=" + attachment.getStringField(PlannedEventAttachmentFields.NAME));
        response.setContentType(
                fileService.getContentType(attachment.getStringField(PlannedEventAttachmentFields.ATTACHMENT)));

        int bytes = IOUtils.copy(is, response.getOutputStream());
        response.setContentLength(bytes);

        response.flushBuffer();

    } catch (IOException e) {
        logger.error("Unable to copy attachment file to response stream.", e);
    }
}

From source file:org.alfresco.repo.webdav.auth.BaseKerberosAuthenticationFilter.java

/**
 * The logon to start again/*from  ww  w  .j av  a2s  . co  m*/
 *
 * @param context ServletContext
 * @param req HttpServletRequest
 * @param resp HttpServletResponse
 * @param ignoreFallback ignore fallback
 * @throws IOException
 */
private void logonStartAgain(ServletContext context, HttpServletRequest req, HttpServletResponse resp,
        boolean ignoreFallback) throws IOException {
    if (getLogger().isDebugEnabled())
        getLogger().debug("Issuing login challenge to browser.");
    // Force the logon to start again
    resp.setHeader("WWW-Authenticate", "Negotiate");

    if (!ignoreFallback && isFallbackEnabled()) {
        includeFallbackAuth(context, req, resp);
    }

    resp.setStatus(HttpServletResponse.SC_UNAUTHORIZED);
    writeLoginPageLink(context, req, resp);

    resp.flushBuffer();
}

From source file:org.kchine.r.server.http.frontend.RebindServlet.java

protected void doAny(final HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    response.setContentType("text/plain");
    try {//www . ja v a2 s. c  o m

        String[] names = ServerDefaults.getRmiRegistry().list();
        Properties props = new Properties();
        Map<String, String> map = request.getParameterMap();
        for (String s : map.keySet())
            props.put(s, map.get(s));

        for (int i = 0; i < names.length; ++i) {
            try {
                RServices r = (RServices) ServerDefaults.getRmiRegistry().lookup(names[i]);
                String newName = r.export(props, request.getParameter("prefix"), true);
                response.getOutputStream().println("<" + names[i] + "> rebinded to <" + newName + ">");
            } catch (Exception e) {
                response.getOutputStream().println("Couldn't Rebind <" + names[i] + ">");
            }
        }

        response.getOutputStream().println("Rebind succeeded");
        response.flushBuffer();

    } catch (Throwable e) {

        response.getOutputStream().println(Utils.getStackTraceAsString(e));
        response.flushBuffer();

    }

}

From source file:de.whs.poodle.repositories.FileRepository.java

public void writeFileToHttpResponse(int fileId, HttpServletResponse response) {
    jdbc.query("SELECT filename,mimetype,data FROM uploaded_file WHERE id = ?", new Object[] { fileId },

            // use ResultSetExtractor, so we can check whether the row even exists (NotFoundException)
            new ResultSetExtractor<Void>() {

                @Override/*  ww  w . jav a 2s .  c  o m*/
                public Void extractData(ResultSet rs) throws SQLException {
                    if (!rs.next())
                        throw new NotFoundException();

                    String filename = rs.getString("filename");
                    String mimeType = rs.getString("mimetype");

                    response.setHeader("Content-Disposition", "filename=\"" + filename + "\"");
                    response.setContentType(mimeType);

                    try (InputStream in = rs.getBinaryStream("data");
                            OutputStream out = response.getOutputStream();) {
                        StreamUtils.copy(in, out);
                        response.flushBuffer();
                    } catch (IOException e) {
                        throw new RuntimeException(e);
                    }

                    return null;
                }
            });
}

From source file:io.getlime.security.powerauth.app.server.service.controller.RESTResponseExceptionResolver.java

@Override
protected ModelAndView doResolveException(HttpServletRequest request, HttpServletResponse response,
        Object handler, Exception exception) {
    try {/*w  w w  .j  av a2 s  .c o m*/
        // Build the error list
        RESTErrorModel error = new RESTErrorModel();
        error.setCode("ERR_SPRING_JAVA");
        error.setMessage(exception.getMessage());
        error.setLocalizedMessage(exception.getLocalizedMessage());
        List<RESTErrorModel> errorList = new LinkedList<>();
        errorList.add(error);

        // Prepare the response
        RESTResponseWrapper<List<RESTErrorModel>> errorResponse = new RESTResponseWrapper<>("ERROR", errorList);

        // Write the response in JSON and send it
        ObjectMapper mapper = new ObjectMapper();
        String responseString = mapper.writeValueAsString(errorResponse);
        response.setStatus(HttpServletResponse.SC_BAD_REQUEST);
        response.setCharacterEncoding(StandardCharsets.UTF_8.name());
        response.setContentType(MediaType.APPLICATION_JSON_VALUE);
        response.getOutputStream().print(responseString);
        response.flushBuffer();
    } catch (IOException e) {
        // Response object does have an output stream here
    }
    return new ModelAndView();
}