Example usage for javax.servlet.http HttpServletResponse setContentLength

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

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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.solab.alarms.servlet.AlarmServlet.java

public void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    String msg = request.getParameter("alarm");
    String src = request.getParameter("src");
    String pass = request.getParameter("password");
    String resp = "ERROR Incomplete Data, you must send field 'alarm' and optionally 'src'";
    if (msg != null) {
        if (auth.verifyPassword(pass, src)) {
            sender.sendAlarm(msg, src);//from   w  w  w.  ja  v  a2s .  co m
            resp = "OK";
        } else {
            resp = "AUTH failed";
        }
    }
    response.setContentType("text/plain");
    response.setContentLength(resp.length());
    response.getWriter().print(resp);
}

From source file:si.mko.test.serialize.JacksonSmileServlet.java

/**
 * Processes requests for both HTTP <code>GET</code> and <code>POST</code>
 * methods.//from   ww w  .jav a  2 s.c om
 *
 * @param request servlet request
 * @param response servlet response
 * @throws ServletException if a servlet-specific error occurs
 * @throws IOException if an I/O error occurs
 */
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {

    int n = Integer.parseInt(request.getParameter("n"));

    Collection<ITransferObject> result = CDataProvider.INSTANCE.get(n,
            CTransferObjectDefaultSerialization.class);
    CTransferObjects objectToSerialize = new CTransferObjects(result);

    OutputStream fout = response.getOutputStream();

    try {

        byte[] object = mapper.writeValueAsBytes(objectToSerialize);
        System.out.println("object size: " + object.length);

        response.setContentLength(object.length);
        fout.write(object);

    } finally {
        fout.flush();
        fout.close();
        fout = null;
    }
}

From source file:com.autentia.intra.servlet.DocServlet.java

@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {

    String uri = request.getRequestURI();
    log.debug("doGet - uri='" + uri + "'");

    int i = uri.indexOf(URL_PREFIX);
    if (i != -1) {
        String relPath = uri.substring(i + URL_PREFIX.length());
        relPath = URLDecoder.decode(relPath, "UTF-8");
        log.debug("doGet - relPath='" + relPath + "'");

        File f = new File(ConfigurationUtil.getDefault().getUploadPath() + relPath);
        if (f.exists()) {
            response.setContentLength((int) f.length());

            String mime = request.getParameter(ARG_MIME);
            if (mime != null && !mime.equals("")) {
                response.setContentType(mime);
            }//from   w w w  .j  av  a2s .c o m
            OutputStream out = response.getOutputStream();
            InputStream in = new FileInputStream(f);
            byte[] buffer = new byte[8192];
            int nr;
            while ((nr = in.read(buffer)) != -1) {
                out.write(buffer, 0, nr);
            }
            in.close();
        } else {
            response.sendError(HttpServletResponse.SC_NOT_FOUND);
        }
    } else {
        response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR,
                "Bad URL prefix for servlet: check your web.xml file");
    }
}

From source file:com.autentia.tnt.servlet.DocServlet.java

@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {

    String uri = request.getRequestURI();
    log.debug("doGet - uri='" + uri + "'");

    int i = uri.indexOf(URL_PREFIX);
    if (i != -1) {
        String relPath = uri.substring(i + URL_PREFIX.length());
        relPath = URLDecoder.decode(relPath, "UTF-8");
        log.debug("doGet - relPath='" + relPath + "'");

        File f = new File(ConfigurationUtil.getDefault().getUploadPath() + relPath);
        if (f.exists()) {
            response.setContentLength((int) f.length());

            String mime = request.getParameter(ARG_MIME);
            if (mime != null && !mime.equals("")) {
                response.setContentType(mime);
            }/* w ww.  ja  va 2s.c o m*/
            OutputStream out = response.getOutputStream();
            InputStream in = null;
            try {
                in = new FileInputStream(f);
                byte[] buffer = new byte[8192];
                int nr;
                while ((nr = in.read(buffer)) != -1) {
                    out.write(buffer, 0, nr);
                }
            } finally {
                if (in != null) {
                    in.close();
                }
            }
        } else {
            response.sendError(HttpServletResponse.SC_NOT_FOUND);
        }
    } else {
        response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR,
                "Bad URL prefix for servlet: check your web.xml file");
    }
}

From source file:m.w.sys.module.FileModule.java

@At("/download/?")
@Ok("raw:stream")
public void download(Long id, HttpServletResponse rep) {
    Atta a = fileService.fetch(id);//from   ww w.jav a  2s  . c  o m
    File file = new File(FilenameUtils.concat(FileService.UPLOAD_ROOT_DIR, a.getFilePath()));
    if (a != null && file.exists()) {
        InputStream fileIn = Streams.fileIn(file);
        rep.setContentType("application/x-msdownload");
        rep.setContentLength(a.getFileSize().intValue());
        String outFileName = Names.encodeFileName(a.getRawName());
        rep.setHeader("Content-Disposition", "attachment; filename=".concat(outFileName));
        int blockSize = 4096;
        int totalRead = 0;
        int readBytes = 0;
        byte b[] = new byte[blockSize];
        try {
            while ((long) totalRead < a.getFileSize()) {
                readBytes = fileIn.read(b, 0, blockSize);
                totalRead += readBytes;
                rep.getOutputStream().write(b, 0, readBytes);
            }
            fileIn.close();
        } catch (Exception e) {
            // ???
        }
    }
}

From source file:it.jugpadova.controllers.BinController.java

/**
 * Produce a preview of the current certificate for a JUG.
 *//*from   w  w w. j  ava  2 s.  co m*/
@RequestMapping
public ModelAndView jugCertificatePreview(HttpServletRequest req, HttpServletResponse res) {
    try {
        Long id = new Long(req.getParameter("id"));
        JUG jug = jugBo.retrieveJug(id);
        InputStream jugCertificateTemplate = jugBo.retrieveJugCertificateTemplate(id);
        byte[] jugCertificate = participantBo.buildCertificate(jugCertificateTemplate, "James Duke",
                jug.getName() + " Meeting", new Date(), jug.getName());
        res.setContentType("application/pdf");
        res.setContentLength(jugCertificate.length);
        res.setHeader("Content-Disposition", "attachment; filename=JugCertificatePreview.pdf");
        OutputStream out = new BufferedOutputStream(res.getOutputStream());
        out.write(jugCertificate);
        out.flush();
        out.close();
    } catch (Exception ex) {
        logger.error("Error producing the certificate preview", ex);
    }
    return null;
}

From source file:com.autentia.intra.servlet.DocRootServlet.java

@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {

    String uri = request.getRequestURI();
    log.debug("doGet - uri='" + uri + "'");

    int i = uri.indexOf(URL_PREFIX);
    if (i != -1) {
        String relPath = uri.substring(i + URL_PREFIX.length());

        relPath = URLDecoder.decode(relPath, "UTF-8");
        log.debug("doGet - relPath='" + relPath + "'");

        File f = new File(ConfigurationUtil.getDefault().getDocumentRootPath() + relPath);
        if (f.exists()) {
            response.setContentLength((int) f.length());

            String mime = request.getParameter(ARG_MIME);
            if (mime != null && !mime.equals("")) {
                response.setContentType(mime);
            }//from   ww w  . j ava  2 s.c  om
            OutputStream out = response.getOutputStream();
            InputStream in = new FileInputStream(f);
            byte[] buffer = new byte[8192];
            int nr;
            while ((nr = in.read(buffer)) != -1) {
                out.write(buffer, 0, nr);
            }
            in.close();
        } else {
            response.sendError(HttpServletResponse.SC_NOT_FOUND);
        }
    } else {
        response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR,
                "Bad URL prefix for servlet: check your web.xml file");
    }
}

From source file:com.autentia.tnt.servlet.DocRootServlet.java

@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {

    String uri = request.getRequestURI();
    log.debug("doGet - uri='" + uri + "'");

    int i = uri.indexOf(URL_PREFIX);
    if (i != -1) {
        String relPath = uri.substring(i + URL_PREFIX.length());

        relPath = URLDecoder.decode(relPath, "UTF-8");
        log.debug("doGet - relPath='" + relPath + "'");

        File f = new File(ConfigurationUtil.getDefault().getDocumentRootPath() + relPath);
        if (f.exists()) {
            response.setContentLength((int) f.length());

            String mime = request.getParameter(ARG_MIME);
            if (mime != null && !mime.equals("")) {
                response.setContentType(mime);
            }/* w  w w . jav  a  2  s.c o m*/
            OutputStream out = response.getOutputStream();
            InputStream in = null;
            try {
                in = new FileInputStream(f);
                byte[] buffer = new byte[8192];
                int nr;
                while ((nr = in.read(buffer)) != -1) {
                    out.write(buffer, 0, nr);
                }
            } finally {
                if (in != null) {
                    in.close();
                }
            }
        } else {
            response.sendError(HttpServletResponse.SC_NOT_FOUND);
        }
    } else {
        response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR,
                "Bad URL prefix for servlet: check your web.xml file");
    }
}

From source file:org.gallery.web.controller.ImageController.java

/**
 * Download file using filename/*from   w  w w  .j av  a2s .  co m*/
 * 
 * @param response
 * @param filename
 */
@RequestMapping(value = "/download/{name:.+}", params = { "attachment" }, method = RequestMethod.GET)
public void download(HttpServletResponse response, @PathVariable("name") String filename,
        @RequestParam("attachment") boolean attachment) {
    String realPath = fileUploadDirectory + File.separator + filename;
    File imageFile = new File(realPath);
    response.setContentType("image/jpeg");
    response.setContentLength((int) imageFile.length());
    if (attachment)
        try {
            response.setHeader("Content-Disposition",
                    "attachment; filename=" + java.net.URLEncoder.encode(filename, "UTF-8"));
        } catch (UnsupportedEncodingException e1) {
            // TODO Auto-generated catch block
            log.error("Could not  encode " + filename, e1);
        }
    try {
        InputStream is = new FileInputStream(imageFile);
        IOUtils.copy(is, response.getOutputStream());
    } catch (IOException e) {
        // TODO Auto-generated catch block
        log.error("Could not  download " + filename, e);
    }
}