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:com.twosigma.beaker.core.module.elfinder.impl.commands.FileCommand.java

@Override
public void execute(FsService fsService, HttpServletRequest request, HttpServletResponse response,
        ServletContext servletContext) throws Exception {
    String target = request.getParameter("target");
    boolean download = "1".equals(request.getParameter("download"));
    FsItemEx fsi = super.findItem(fsService, target);
    String mime = fsi.getMimeType();

    response.setCharacterEncoding("utf-8");
    response.setContentType(mime);//from w  w  w  .j  a  v  a2 s.  c om
    //String fileUrl = getFileUrl(fileTarget);
    //String fileUrlRelative = getFileUrl(fileTarget);
    String fileName = fsi.getName();
    //fileName = new String(fileName.getBytes("utf-8"), "ISO8859-1");
    if (download || MimeTypesUtils.isUnknownType(mime)) {
        response.setHeader("Content-Disposition",
                "attachments; " + getAttachementFileName(fileName, request.getHeader("USER-AGENT")));
        //response.setHeader("Content-Location", fileUrlRelative);
        response.setHeader("Content-Transfer-Encoding", "binary");
    }

    OutputStream out = response.getOutputStream();
    InputStream is = null;
    response.setContentLength((int) fsi.getSize());
    try {
        // serve file
        is = fsi.openInputStream();
        IOUtils.copy(is, out);
        out.flush();
        out.close();
    } finally {
        if (is != null) {
            try {
                is.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
}

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From source file:com.dotmarketing.portlets.cmsmaintenance.ajax.IndexAjaxAction.java

public void downloadIndex(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException, DotDataException {
    Map<String, String> map = getURIParams();
    response.setContentType("application/zip");

    String indexName = getIndexNameOrAlias(map);

    if (!UtilMethods.isSet(indexName))
        return;// w ww .j  a  v  a 2s  . com

    if (indexName.equalsIgnoreCase("live") || indexName.equalsIgnoreCase("working")) {
        IndiciesInfo info = APILocator.getIndiciesAPI().loadIndicies();
        if (indexName.equalsIgnoreCase("live")) {
            indexName = info.live;
        }
        if (indexName.equalsIgnoreCase("working")) {
            indexName = info.working;
        }
    }

    File f = APILocator.getESIndexAPI().backupIndex(indexName);
    response.setContentLength((int) f.length());
    OutputStream out = response.getOutputStream();
    InputStream in = new FileInputStream(f);

    response.setHeader("Content-Type", "application/zip");
    response.setHeader("Content-Disposition", "attachment; filename=" + indexName + ".zip");

    IOUtils.copyLarge(in, out);

    f.delete();
    return;
}

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From source file:it.geosolutions.opensdi.operations.FolderManagerOperationController.java

/**
 * Download a file with a stream//from  www. ja va2 s  .c o m
 * 
 * @param resp
 * @param fileName
 * @param filePath
 * @return
 */
@SuppressWarnings("resource")
private ResponseEntity<byte[]> download(HttpServletResponse resp, String fileName, String filePath) {

    final HttpHeaders headers = new HttpHeaders();
    File toServeUp = new File(filePath);
    InputStream inputStream = null;

    try {
        inputStream = new FileInputStream(toServeUp);
    } catch (FileNotFoundException e) {

        // Also useful, this is a good was to serve down an error message
        String msg = "ERROR: Could not find the file specified.";
        headers.setContentType(MediaType.TEXT_PLAIN);
        return new ResponseEntity<byte[]>(msg.getBytes(), headers, HttpStatus.NOT_FOUND);

    }

    resp.setContentType("application/octet-stream");
    resp.setHeader("Content-Disposition", "attachment; filename=\"" + fileName + "\"");

    Long fileSize = toServeUp.length();
    resp.setContentLength(fileSize.intValue());

    OutputStream outputStream = null;

    try {
        outputStream = resp.getOutputStream();
    } catch (IOException e) {
        String msg = "ERROR: Could not generate output stream.";
        headers.setContentType(MediaType.TEXT_PLAIN);
        return new ResponseEntity<byte[]>(msg.getBytes(), headers, HttpStatus.NOT_FOUND);
    }

    byte[] buffer = new byte[1024];

    int read = 0;
    try {

        while ((read = inputStream.read(buffer)) != -1) {
            outputStream.write(buffer, 0, read);
        }

        // close the streams to prevent memory leaks
        outputStream.flush();
        outputStream.close();
        inputStream.close();

    } catch (Exception e) {
        String msg = "ERROR: Could not read file.";
        headers.setContentType(MediaType.TEXT_PLAIN);
        return new ResponseEntity<byte[]>(msg.getBytes(), headers, HttpStatus.NOT_FOUND);
    }

    return null;
}

---

From source file:com.baidu.jprotobuf.rpc.server.HttpRequestHandlerServlet.java

protected void service(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {

    String context = request.getPathInfo();
    if (context == null) {
        LOGGER.warn("invalid request path.");
        response.setStatus(HttpServletResponse.SC_NOT_FOUND);
        return;/*from   w  w  w .j a  v a2s . c o  m*/
    } else {
        if (context.startsWith("/")) {
            context = context.substring(1);
        }

        if (!serviceMap.containsKey(context)) {
            LOGGER.warn("invalid request path service name[" + context + "] not found.");
            response.setStatus(HttpServletResponse.SC_NOT_FOUND);
            return;
        }
    }

    try {
        ServiceExporter idlServiceExporter = serviceMap.get(context);

        //to check if a get idl request 
        if (request.getParameter(ServiceExporter.INPUT_IDL_PARAMETER) != null) {

            String inputIDL = idlServiceExporter.getInputIDL();
            if (inputIDL != null) {
                response.setContentLength(inputIDL.length());
                response.getOutputStream().write(inputIDL.getBytes());

                return;
            }

        } else if (request.getParameter(ServiceExporter.OUTPUT_IDL_PARAMETER) != null) {
            String outputIDL = idlServiceExporter.getOutputIDL();
            if (outputIDL != null) {
                response.setContentLength(outputIDL.length());
                response.getOutputStream().write(outputIDL.getBytes());

                return;
            }
        }

        IDLProxyObject inputIDLProxyObject = idlServiceExporter.getInputProxyObject();
        IDLProxyObject input = null;
        if (inputIDLProxyObject != null && request.getContentLength() > 0) {
            byte[] bytes = readStream(request.getInputStream(), request.getContentLength());
            input = inputIDLProxyObject.decode(bytes);
        }

        IDLProxyObject result = idlServiceExporter.execute(input);
        if (result != null) {
            byte[] bytes = result.encode();
            response.setContentLength(bytes.length);
            response.getOutputStream().write(bytes);
        }
    } catch (Exception ex) {
        response.sendError(HttpServletResponse.SC_BAD_REQUEST, ex.getMessage());
    } finally {
        response.getOutputStream().flush();
        response.getOutputStream().close();
    }
}

---

From source file:com.zimbra.cs.servlet.ZimbraServlet.java

/**
 * Filter the request based on incoming port.  If the allowed.ports
 * parameter is specified for the servlet, the incoming port must
 * match one of the listed ports./*  ww w . j av a2s.  c o  m*/
 */
@Override
protected void service(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    boolean allowed = isRequestOnAllowedPort(request);
    if (!allowed) {
        SoapProtocol soapProto = SoapProtocol.Soap12;
        ServiceException e = ServiceException.FAILURE("Request not allowed on port " + request.getLocalPort(),
                null);
        ZimbraLog.soap.warn(null, e);
        Element fault = SoapProtocol.Soap12.soapFault(e);
        Element envelope = SoapProtocol.Soap12.soapEnvelope(fault);
        byte[] soapBytes = envelope.toUTF8();
        response.setContentType(soapProto.getContentType());
        response.setBufferSize(soapBytes.length + 2048);
        response.setContentLength(soapBytes.length);
        response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
        response.getOutputStream().write(soapBytes);
        return;
    }
    super.service(request, response);
}

---

From source file:edu.cornell.mannlib.vitro.webapp.controller.harvester.FileHarvestController.java

private void doDownloadTemplatePost(HttpServletRequest request, HttpServletResponse response) {

    VitroRequest vreq = new VitroRequest(request);
    FileHarvestJob job = getJob(vreq, vreq.getParameter(PARAMETER_JOB));
    File fileToSend = new File(job.getTemplateFilePath());

    response.setContentType("application/octet-stream");
    response.setContentLength((int) (fileToSend.length()));
    response.setHeader("Content-Disposition", "attachment; filename=\"" + fileToSend.getName() + "\"");

    try {//w w  w. j  a v  a  2  s  .co m
        byte[] byteBuffer = new byte[(int) (fileToSend.length())];
        DataInputStream inStream = new DataInputStream(new FileInputStream(fileToSend));

        ServletOutputStream outputStream = response.getOutputStream();
        for (int length = inStream.read(byteBuffer); length != -1; length = inStream.read(byteBuffer)) {
            outputStream.write(byteBuffer, 0, length);
        }

        inStream.close();
        outputStream.flush();
        outputStream.close();
    } catch (IOException e) {
        log.error(e, e);
    }
}

---

From source file:com.webpagebytes.cms.controllers.FileController.java

public void serveResource(HttpServletRequest request, HttpServletResponse response, String requestUri)
        throws WPBException {
    InputStream is = null;//from ww w  .j  a  v  a2  s. com
    OutputStream os = null;
    try {
        Long key = Long.valueOf((String) request.getAttribute("key"));
        WPBFile wbfile = adminStorage.get(key, WPBFile.class);
        WPBFilePath cloudFile = new WPBFilePath(PUBLIC_BUCKET, wbfile.getBlobKey());
        is = cloudFileStorage.getFileContent(cloudFile);
        response.setContentType(wbfile.getAdjustedContentType());
        response.setContentLength(wbfile.getSize().intValue());
        os = response.getOutputStream();
        IOUtils.copy(is, os);
        os.flush();
    } catch (Exception e) {
        response.setStatus(HttpServletResponse.SC_BAD_REQUEST);
    } finally {
        IOUtils.closeQuietly(is);
        IOUtils.closeQuietly(os);
    }
}

---

From source file:com.portfolio.data.attachment.FileServlet.java

void InitAnswer(HttpURLConnection connection, HttpServletResponse response, String referer)
        throws MalformedURLException, IOException {
    String ref = null;//from   w ww. j  av a2 s  .c  om
    if (referer != null) {
        int first = referer.indexOf('/', 7);
        int last = referer.lastIndexOf('/');
        ref = referer.substring(first, last);
    }

    response.setContentType(connection.getContentType());
    response.setStatus(connection.getResponseCode());
    response.setContentLength(connection.getContentLength());

    /// Transfer headers
    Map<String, List<String>> headers = connection.getHeaderFields();
    int size = headers.size();
    for (int i = 1; i < size; ++i) {
        String key = connection.getHeaderFieldKey(i);
        String value = connection.getHeaderField(i);
        //         response.setHeader(key, value);
        response.addHeader(key, value);
    }

    /// Deal with correct path with set cookie
    List<String> setValues = headers.get("Set-Cookie");
    if (setValues != null) {
        String setVal = setValues.get(0);
        int pathPlace = setVal.indexOf("Path=");
        if (pathPlace > 0) {
            setVal = setVal.substring(0, pathPlace + 5); // Some assumption, may break
            setVal = setVal + ref;

            response.setHeader("Set-Cookie", setVal);
        }
    }
}

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From source file:com.rplt.studioMusik.controller.OperatorController.java

@RequestMapping(value = "/cetakNota", method = RequestMethod.GET)
public String cetakNota(HttpServletResponse response) {
    Connection conn = DatabaseConnection.getmConnection();
    //            File reportFile = new File(application.getRealPath("Coba.jasper"));//your report_name.jasper file
    File reportFile = new File(
            servletConfig.getServletContext().getRealPath("/resources/report/nota_persewaan.jasper"));

    Map parameters = new HashMap();
    Map<String, Object> params = new HashMap<String, Object>();
    params.put("P_KODESEWA", request.getParameter("kodeSewa"));
    byte[] bytes = null;
    try {/*from  w  w w. ja va2  s  .com*/
        bytes = JasperRunManager.runReportToPdf(reportFile.getPath(), params, conn);
    } catch (JRException ex) {
        Logger.getLogger(OperatorController.class.getName()).log(Level.SEVERE, null, ex);
    }

    response.setContentType("application/pdf");
    response.setContentLength(bytes.length);

    try {
        ServletOutputStream outStream = response.getOutputStream();
        outStream.write(bytes, 0, bytes.length);
        outStream.flush();
        outStream.close();
    } catch (IOException ex) {
        Logger.getLogger(MemberController.class.getName()).log(Level.SEVERE, null, ex);
    }
    return "halaman-cetakNota-operator";
}

---

From source file:it.eng.spagobi.tools.downloadFiles.service.DownloadZipAction.java

private void manageDownload(String fileName, String fileExtension, String folderPath,
        HttpServletResponse response, boolean deleteFile) {
    logger.debug("IN");
    try {/*from www.  j  a va  2s.  co m*/
        File exportedFile = new File(folderPath + "/" + fileName);

        response.setHeader("Content-Disposition",
                "attachment; filename=\"" + fileName + "." + fileExtension + "\";");
        byte[] exportContent = "".getBytes();
        FileInputStream fis = null;
        try {
            fis = new FileInputStream(exportedFile);
            exportContent = GeneralUtilities.getByteArrayFromInputStream(fis);
        } catch (IOException ioe) {
            logger.error("Cannot get bytes of the download file", ioe);
        }
        response.setHeader("Content-Disposition", "attachment; filename=\"" + fileName + "\";");
        response.setContentLength(exportContent.length);
        response.getOutputStream().write(exportContent);
        response.getOutputStream().flush();
        if (fis != null)
            fis.close();
        if (deleteFile) {
            exportedFile.delete();
        }
    } catch (IOException ioe) {
        logger.error("Cannot flush response", ioe);
    } finally {
        logger.debug("OUT");
    }
}

---

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