Example usage for javax.servlet.http HttpServletResponse setContentLength

Introduction

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

Prototype

public void setContentLength(int len);

Source Link

Document

Sets the length of the content body in the response In HTTP servlets, this method sets the HTTP Content-Length header.

Usage

From source file:sys.core.manager.RecursosManager.java

public String viewReportePdf(HashMap hmParametros, String reporte, String nombreArchivo)
        throws FileNotFoundException, JRException, IOException, SQLException {
    InputStream ie = null;/*from   ww  w.  j  a  va 2s.  c  o  m*/
    Connection c = null;
    try {
        ApplicationMBean applicationMBean = (ApplicationMBean) WebServletContextListener.getApplicationContext()
                .getBean("applicationMBean");
        File file = new File(applicationMBean.getRutaJaspers());
        ie = new FileInputStream(new File(file, reporte + ".jasper"));
        c = applicationMBean.obtenerConexionDataBase();
        if (c != null) {
            logger.info("P_DIRECTORIO_REPORTES: " + file.getCanonicalPath() + File.separator);
            hmParametros.put("P_DIRECTORIO_REPORTES", file.getCanonicalPath() + File.separator);
            hmParametros.put(JRParameter.REPORT_LOCALE, new Locale("es_PE"));
            hmParametros.put(JRParameter.REPORT_TIME_ZONE, applicationMBean.getTimeZone());
            JasperPrint jasperPrint = JasperFillManager.fillReport(ie, hmParametros, c);
            logger.info("el jasperProcesado: " + jasperPrint.toString());
            byte[] bytes = JasperExportManager.exportReportToPdf(jasperPrint);
            FacesContext context = FacesContext.getCurrentInstance();
            HttpServletResponse response = (HttpServletResponse) context.getExternalContext().getResponse();
            response.addHeader("Content-disposition", "attachment;filename=" + nombreArchivo);
            response.setContentLength(bytes.length);
            response.getOutputStream().write(bytes);
            response.setContentType("application/pdf");
            context.responseComplete();
        } else {
            logger.error("NO SE PUEDO EJECUTAR LA IMPRESION LA CONEXION ES NULA");
        }

        return null;
    } catch (JRException ex) {
        logger.error("Error al rellenar el reporte " + ex.getMessage());
        logger.error(ex);
    } catch (IOException ex) {
        logger.error("Error al leer el jasper " + ex.getMessage());
        logger.error(ex);
    } catch (Throwable ex) {
        logger.error("Otros errores con el jasper " + ex.getMessage());
        logger.error(ex);
    } finally {
        try {
            if (c != null) {
                c.close();
            }
            if (ie != null) {
                ie.close();
            }
        } catch (IOException ex) {
            logger.error(ex);
        }
        return null;
    }

}

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From source file:com.novartis.pcs.ontology.rest.servlet.SubtermsServlet.java

@Override
protected void doOptions(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    String mediaType = getExpectedMediaType(request);

    if (MEDIA_TYPE_JSON.equals(mediaType)) {
        // Preflight CORS support
        response.setStatus(HttpServletResponse.SC_OK);
        response.setHeader("Access-Control-Allow-Origin", "*");
        response.setHeader("Access-Control-Allow-Methods", "GET");
        response.setIntHeader("Access-Control-Max-Age", 60 * 60 * 24);
        response.setContentType(mediaType + ";charset=utf-8");
        response.setContentLength(0);
    } else {/*ww w  . j  av  a2  s  . c  om*/
        response.setStatus(HttpServletResponse.SC_UNSUPPORTED_MEDIA_TYPE);
        response.setContentLength(0);
    }
}

---

From source file:com.benfante.minimark.controllers.ResultsController.java

@RequestMapping
public void xls(@RequestParam("id") Long id, HttpServletRequest req, HttpServletResponse res, Locale locale) {
    Assessment assessment = assessmentDao.get(id);
    userProfileBo.checkEditAuthorization(assessment);
    List<AssessmentFilling> assessments = assessmentFillingDao
            .findByAssessmentIdOrderByLastNameAndFirstNameAndIdentifier(id);
    OutputStream out = null;/*from w  w  w . j  a va 2  s .  c om*/
    try {
        byte[] xlsBytes = excelResultBuilder.buildXls(assessments, locale);
        out = res.getOutputStream();
        res.setContentType("application/vnd.ms-excel");
        res.setContentLength(xlsBytes.length);
        res.setHeader("Content-Disposition", " attachment; filename=\"" + assessment.getTitle() + ".xls\"");
        res.setHeader("Expires", "0");
        res.setHeader("Cache-Control", "must-revalidate, post-check=0, pre-check=0");
        res.setHeader("Pragma", "public");
        out.write(xlsBytes);
        out.flush();
    } catch (Exception ex) {
        logger.error("Can't build XLS file for " + assessment.getTitle(), ex);
        ex.printStackTrace();
    } finally {
        if (out != null) {
            try {
                out.close();
            } catch (IOException ioe) {
            }
        }
    }
}

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From source file:gr.abiss.calipso.tiers.controller.AbstractModelWithAttachmentsController.java

@ApiOperation(value = "Get an uploaded file")
@RequestMapping(value = "{subjectId}/uploads/{propertyName}/files/{id}", method = RequestMethod.GET)
public void getFile(HttpServletResponse response, @PathVariable String subjectId,
        @PathVariable String propertyName, @PathVariable String id) {
    Configuration config = ConfigurationFactory.getConfiguration();
    String fileUploadDirectory = config.getString(ConfigurationFactory.FILES_DIR);
    BinaryFile file = binaryFileService.findById(id);
    File fileFile = new File(fileUploadDirectory + file.getParentPath() + "/" + file.getNewFilename());
    response.setContentType(file.getContentType());
    response.setContentLength(file.getSize().intValue());
    try {/* w w  w .  j  ava 2  s  . com*/
        InputStream is = new FileInputStream(fileFile);
        IOUtils.copy(is, response.getOutputStream());
    } catch (IOException e) {
        LOGGER.error("Could not show picture " + id, e);
    }
}

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From source file:com.ebay.pulsar.metric.servlet.MetricRestServlet.java

private void getMetrics(final HttpServletRequest request, final String pathInfo,
        final HttpServletResponse response) throws Exception {
    String queryString = request.getQueryString();
    QueryParam queryParam = getCassandraQueryParam(queryString);
    ListenableFuture<List<RawNumericMetric>> future = metricService.findData(queryParam);

    try {//from  w ww .j  a  va  2 s .  c o m
        List<RawNumericMetric> metrics = future.get(5000, TimeUnit.MILLISECONDS);
        String result = metricResultWriter.writeValueAsString(metrics);
        response.getWriter().print(result);
        response.setContentLength(result.length());
        response.setStatus(HttpServletResponse.SC_OK);
    } catch (TimeoutException e) {
        response.getWriter().print(QUERY_CASSANDRA_TIMEOUT);
        response.setContentLength(QUERY_CASSANDRA_TIMEOUT.length());
        response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
    } catch (ExecutionException e) {
        response.getWriter().print(QUERY_CASSANDRA_ERROR);
        response.setContentLength(QUERY_CASSANDRA_ERROR.length());
        response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
    }
}

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From source file:com.github.zhanhb.ckfinder.download.PathPartial.java

private void setContentLengthLong(HttpServletResponse response, long length) {
    if (HAS_METHOD_CONTENT_LENGTH_LONG) {
        response.setContentLengthLong(length);
    } else if (length <= Integer.MAX_VALUE) {
        response.setContentLength((int) length);
    } else {//from   w w w.  j a  v a 2  s. c  o m
        response.setHeader(HttpHeaders.CONTENT_LENGTH, Long.toString(length));
    }
}

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From source file:org.shareok.data.webserv.WebUtil.java

public static void setupFileDownload(HttpServletResponse response, String downloadPath) {
    try {/*from   ww w  .  j a va  2 s . co  m*/
        File file = new File(downloadPath);
        if (!file.exists()) {
            String errorMessage = "Sorry. The file you are looking for does not exist";
            System.out.println(errorMessage);
            OutputStream outputStream = response.getOutputStream();
            outputStream.write(errorMessage.getBytes(Charset.forName("UTF-8")));
            outputStream.close();
            return;
        }

        String mimeType = URLConnection.guessContentTypeFromName(file.getName());
        if (mimeType == null) {
            System.out.println("mimetype is not detectable, will take default");
            mimeType = "application/octet-stream";
        }

        response.setContentType(mimeType);
        /* "Content-Disposition : inline" will show viewable types [like images/text/pdf/anything viewable by browser] right on browser 
        while others(zip e.g) will be directly downloaded [may provide save as popup, based on your browser setting.]*/
        response.setHeader("Content-Disposition",
                String.format("attachment; filename=\"" + file.getName() + "\""));

        /* "Content-Disposition : attachment" will be directly download, may provide save as popup, based on your browser setting*/
        //response.setHeader("Content-Disposition", String.format("attachment; filename=\"%s\"", file.getName()));

        response.setContentLength((int) file.length());

        InputStream inputStream = new BufferedInputStream(new FileInputStream(file));

        //Copy bytes from source to destination(outputstream in this example), closes both streams.
        FileCopyUtils.copy(inputStream, response.getOutputStream());
    } catch (IOException ioex) {
        logger.error("Cannot set up a file download.", ioex);
    }
}

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From source file:gr.abiss.calipso.tiers.controller.AbstractModelWithAttachmentsController.java

@RequestMapping(value = "{subjectId}/uploads/{propertyName}/thumbs/{id}", method = RequestMethod.GET)
@ApiOperation(value = "Get file thumb/preview image of a file upload   ")
public void thumbnail(HttpServletResponse response, @PathVariable String subjectId,
        @PathVariable String propertyName, @PathVariable String id) {
    Configuration config = ConfigurationFactory.getConfiguration();
    String fileUploadDirectory = config.getString(ConfigurationFactory.FILES_DIR);
    BinaryFile file = binaryFileService.findById(id);
    File fileFile = new File(fileUploadDirectory + file.getParentPath() + "/" + file.getThumbnailFilename());
    response.setContentType(file.getContentType());
    response.setContentLength(file.getThumbnailSize().intValue());
    try {/*from ww  w.  j  a  va2 s .  c  o m*/
        InputStream is = new FileInputStream(fileFile);
        IOUtils.copy(is, response.getOutputStream());
    } catch (IOException e) {
        LOGGER.error("Could not show thumbnail " + id, e);
    }
}

---

From source file:be.fedict.eid.dss.portal.DownloadServlet.java

@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    LOG.debug("doGet");
    HttpSession httpSession = request.getSession();
    byte[] document = (byte[]) httpSession.getAttribute(this.documentSessionAttribute);

    response.setHeader("Cache-Control", "no-cache, no-store, must-revalidate, max-age=-1"); // http 1.1
    if (false == request.getScheme().equals("https")) {
        // else the download fails in IE
        response.setHeader("Pragma", "no-cache"); // http 1.0
    } else {//from   w  ww . j a  v  a 2s  .  com
        response.setHeader("Pragma", "public");
    }
    response.setDateHeader("Expires", -1);
    response.setContentLength(document.length);

    String contentType = (String) httpSession.getAttribute(this.contentTypeSessionAttribute);
    LOG.debug("content-type: " + contentType);
    response.setContentType(contentType);
    response.setContentLength(document.length);
    ServletOutputStream out = response.getOutputStream();
    out.write(document);
    out.flush();
}

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