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:cn.com.cennavi.visualizer.service.ExecuteController.java

private void returnAjax(String json, HttpServletRequest request, HttpServletResponse response)
        throws IOException {
    try {//w  w w  . j  a  v a2 s  .co  m
        String callback = request.getParameter("callback");
        String revalue = callback + "(" + json + ")";
        request.setCharacterEncoding("utf-8"); //???
        response.setContentType("text/html;charset=utf-8");
        response.setHeader("Cache-Control", "no-cache");
        response.getOutputStream().write(revalue.getBytes());
        response.flushBuffer();
    } catch (Exception e) {
        // TODO: handle exception
    }
}

From source file:com.ugam.collage.plus.controller.people_count.TeamStructureController.java

@RequestMapping(value = "/downLoadFile", method = RequestMethod.GET)
public void downLoadFile(HttpServletRequest request, HttpServletResponse response) {

    try {//w w  w . ja va2 s. c  o m
        String docDir = System.getProperty("docDir");
        String fileName = request.getParameter("fileName");
        File file = new File(docDir + "/" + fileName);
        InputStream in = new BufferedInputStream(new FileInputStream(file));

        response.setHeader("Content-Disposition", "attachment; filename=" + fileName);

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

From source file:org.mitre.mpf.mvc.controller.ServerMediaController.java

/***
 *
 * @param response/*from   w  ww  .ja  va2 s. c  om*/
 * @param nodeFullPath
 * @throws IOException
 * @throws URISyntaxException
  */
@RequestMapping(value = "/server/node-image", method = RequestMethod.GET, produces = MediaType.IMAGE_JPEG_VALUE)
@ResponseBody
public void serve(HttpServletResponse response,
        @RequestParam(value = "nodeFullPath", required = true) String nodeFullPath)
        throws IOException, URISyntaxException {
    //TODO: this set of lines is also used in the MarkupController - create a single method
    File f = new File(nodeFullPath);
    if (f.canRead()) {
        FileUtils.copyFile(f, response.getOutputStream());
        response.flushBuffer();
    } else {
        response.setStatus(404);
    }

    //TODO: add an image to return that is file not available and error retrieving file 
    //to resources to use when there are issues

    //TODO: adjust the content type based on the image type
    //response.setContentLength(MediaType.);      
}

From source file:edu.ucla.loni.pipeline.server.Upload.Uploaders.FileUploadServlet.java

/**
 * Handles HTTP POST Request/Response/*from   w w w  .ja  v a2  s . co m*/
 * 
 * @see javax.servlet.http.HttpServlet#doPost(javax.servlet.http.HttpServletRequest,
 *      javax.servlet.http.HttpServletResponse)
 */
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {

    // set response status
    resp.setStatus(HttpServletResponse.SC_OK);

    // reset response message
    ResponseBuilder respBuilder = new ResponseBuilder();

    // handle file upload
    handleFileUpload(req, respBuilder);

    // get response message
    String message = respBuilder.getRespMessage();

    resp.getWriter().print(message);

    // flush response buffer
    resp.flushBuffer();
}

From source file:com.rcn.controller.ResourceController.java

@RequestMapping(value = "/pkcs12/{file_name}", method = RequestMethod.POST)
public void pkcs12Post(@PathVariable("file_name") String fileName, @RequestParam("rid") Long rid,
        @RequestParam("password") String password, Authentication principal, Model model,
        HttpServletResponse response) throws IOException {
    RcnUserDetail user = (RcnUserDetail) principal.getPrincipal();
    Long targetUserId = user.getTargetUser().getId();

    String cert = resourceRepository.certById(targetUserId, targetUserId, rid);
    try {//from  w  ww .  j a va 2s  .c o m
        byte[] content = certificateService.toPkcs12(cert, password);
        response.setContentType("application/octet-stream");
        response.getOutputStream().write(content);
        response.flushBuffer();
    } catch (Exception e) {
        model.addAttribute("error", e.getMessage());
    }
}

From source file:fr.putnami.pwt.plugin.spring.file.server.controller.FileTransfertController.java

@RequestMapping(value = "/file/download/{fileId}", method = RequestMethod.GET)
public void downloadFile(@PathVariable String fileId, HttpServletRequest request,
        HttpServletResponse response) {
    try {/*from   w  w  w. j av a 2  s  .  c o m*/
        FileDto fileBean = this.store.getFileBean(fileId);
        if (fileBean == null) {
            throw new RuntimeException("Aucun fichier trouver " + fileId);
        }
        InputStream is = this.store.read(fileId);
        response.setContentType(fileBean.getMime());
        response.setHeader("Content-Disposition", "attachment; filename=\"" + fileBean.getName() + "\"");
        response.setContentLength((int) fileBean.getContentLength());
        IOUtils.copy(is, response.getOutputStream());
        response.flushBuffer();
    } catch (IOException ex) {
        throw new RuntimeException("IOError writing file to output stream", ex);
    }
}

From source file:cn.org.once.cstack.controller.MonitoringController.java

/**
 * * Is a wrapper to cAdvisor API//from  w w w. jav  a2s .co m
 *
 * @param containerName
 * @throws ServiceException
 * @throws CheckException
 */
@RequestMapping(value = "/api/containers/docker/{containerName}", method = RequestMethod.GET)
public void infoContainer(HttpServletRequest request, HttpServletResponse response,
        @PathVariable String containerName) throws ServiceException, CheckException {
    try {
        String containerId = dockerService.getContainerId(containerName);
        String responseFromCAdvisor = monitoringService.getJsonFromCAdvisor(containerId);

        if (logger.isDebugEnabled()) {
            logger.debug("containerId=" + containerId);
            logger.debug("responseFromCAdvisor=" + responseFromCAdvisor);
        }

        response.getWriter().write(responseFromCAdvisor);
        response.flushBuffer();
    } catch (Exception e) {
        logger.error("error during write and flush response", containerName);
    }
}

From source file:org.mitre.mpf.mvc.controller.MarkupController.java

@RequestMapping(value = "/markup/download", method = RequestMethod.GET)
public void getFile(@RequestParam(value = "id", required = true) long id, HttpServletResponse response)
        throws IOException, URISyntaxException {
    MarkupResult mediaMarkupResult = mpfService.getMarkupResult(id);
    if (mediaMarkupResult != null) {
        String nonUrlPath = mediaMarkupResult.getMarkupUri().replace("file:", "");
        File f = new File(nonUrlPath);
        if (f.canRead()) {
            //copy it to response's OutputStream
            FileUtils.copyFile(f, response.getOutputStream());
            response.flushBuffer();
        }/*w  w  w .  j  a va2 s  .  com*/
    }
    //TODO: what to do if file does not exist
}

From source file:gerenciador.incubadora.controller.ArquivoController.java

@RequestMapping(value = "/imagem/{id}")
public ModelAndView download(HttpServletResponse response, @PathVariable Long id)
        throws FileNotFoundException, Exception {

    InputStream is = new ByteArrayInputStream(
            FileUtils.readFileToByteArray(new File(Empreendimento.EMPREENDIMENTO_PATH_LOGO_DEFAULT)));

    ModelAndView mv = new ModelAndView("redirect:/empreendedor");
    Empreendimento empreendimento = ServiceLocator.getEmpreendimentoService().readById(id);
    mv.addObject("empreendimento", empreendimento);
    //is.close();
    response.setContentType("image/jpeg");
    IOUtils.copy(is, response.getOutputStream());
    response.flushBuffer();
    if (response.isCommitted()) {
        System.out.println("Resposta Comitada!");
    }/*  ww  w  .  ja va2 s .c o m*/
    return new ModelAndView("empreendimento/new");
}