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.qcadoo.mes.basic.controllers.WorkstationMultiUploadController.java

@RequestMapping(value = "/getAttachment.html", method = RequestMethod.GET)
public final void getAttachment(@RequestParam("id") final Long[] ids, HttpServletResponse response) {
    DataDefinition attachmentDD = dataDefinitionService.get(BasicConstants.PLUGIN_IDENTIFIER,
            BasicConstants.MODEL_WORKSTATION_ATTACHMENT);
    Entity attachment = attachmentDD.get(ids[0]);
    InputStream is = fileService/* w  w  w  .j ava2 s. com*/
            .getInputStream(attachment.getStringField(WorkstationAttachmentFields.ATTACHMENT));

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

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

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From source file:com.qcadoo.mes.basic.controllers.SubassemblyMultiUploadController.java

@RequestMapping(value = "/getAttachmentForSubassembly.html", method = RequestMethod.GET)
public final void getAttachment(@RequestParam("id") final Long[] ids, HttpServletResponse response) {
    DataDefinition attachmentDD = dataDefinitionService.get(BasicConstants.PLUGIN_IDENTIFIER,
            BasicConstants.MODEL_SUBASSEMBLY_ATTACHMENT);
    Entity attachment = attachmentDD.get(ids[0]);
    InputStream is = fileService/*from   w w w.jav  a2s  .  com*/
            .getInputStream(attachment.getStringField(SubassemblyAttachmentFields.ATTACHMENT));

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

        response.setHeader("Content-disposition",
                "inline; filename=" + attachment.getStringField(SubassemblyAttachmentFields.NAME));
        response.setContentType(
                fileService.getContentType(attachment.getStringField(SubassemblyAttachmentFields.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:com.yahoo.dba.perf.myperf.springmvc.ReportController.java

private ModelAndView download(Map<String, String> pathParams, HttpServletRequest req, HttpServletResponse resp)
        throws Exception {
    File rootPath = this.frameworkContext.getAlertRootPath();
    String ts = pathParams.get(Constants.URL_PATH_START_TS);
    String dt = this.getDateFromTS(ts);
    File dir = new File(rootPath, dt);
    do {//from ww w.  ja v  a 2  s.  c o m
        if (!dir.exists())
            break;
        String origTS = getOriginalTS(ts);
        File f = new File(dir,
                pathParams.get(Constants.URL_PATH_ALERT_TYPE) + "_" + pathParams.get(Constants.URL_PATH_DBGROUP)
                        + "_" + pathParams.get(Constants.URL_PATH_DBHOST) + "_" + origTS + ".txt");
        if (!f.exists())
            break;
        resp.setContentType("text/plain");
        resp.setContentLength((int) f.length());
        //resp.setHeader("Content-Disposition","attachment; filename=\""+f.getName()+"\"");        
        byte[] buf = new byte[8192];
        int len = 0;
        OutputStream out = resp.getOutputStream();
        InputStream in = null;
        try {
            in = new FileInputStream(f);
            while ((len = in.read(buf)) > 0)
                out.write(buf, 0, len);
        } catch (Exception ex) {

        } finally {
            try {
                if (in != null)
                    in.close();
            } catch (Exception iex) {
            }
            out.flush();
        }
        return null;
    } while (false);

    //if we reach here, something wrong
    ModelAndView mv = new ModelAndView(this.jsonView);
    mv.addObject("json_result", ResultListUtil.toJSONString(null, null, Constants.STATUS_BAD,
            "Cannot find your alert report, try another one."));
    return mv;
}

---

From source file:net.lightbody.bmp.proxy.jetty.jetty.servlet.Default.java

protected void writeHeaders(HttpServletResponse response, Resource resource, long count) throws IOException {
    ResourceCache.ResourceMetaData metaData = _httpContext.getResourceMetaData(resource);

    response.setContentType(metaData.getMimeType());
    if (count != -1) {
        if (count == resource.length() && response instanceof ServletHttpResponse)
            response.setHeader(HttpFields.__ContentLength, metaData.getLength());
        else//from   w  w  w.j a va  2  s .c  o  m
            response.setContentLength((int) count);
    }

    response.setHeader(HttpFields.__LastModified, metaData.getLastModified());

    if (_acceptRanges)
        response.setHeader(HttpFields.__AcceptRanges, "bytes");
}

---

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/*ww w  .ja 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:com.novartis.pcs.ontology.rest.servlet.OntologiesServlet.java

private void export(String ontologyName, boolean includeNonPublicXrefs, String mediaType,
        HttpServletResponse response) {
    OntologyFormat format = mediaTypes.get(mediaType);
    if (format != null) {
        try {/*from   ww w .  ja v a2s  .c  o m*/
            response.setStatus(HttpServletResponse.SC_OK);
            response.setHeader("Access-Control-Allow-Origin", "*");
            response.setContentType(mediaType + ";charset=utf-8");
            response.setHeader("Cache-Control", "public, max-age=0");

            exportService.exportOntology(ontologyName, response.getOutputStream(), format,
                    includeNonPublicXrefs);
        } catch (OntologyNotFoundException e) {
            response.setStatus(HttpServletResponse.SC_NOT_FOUND);
            response.setContentLength(0);
        } catch (Exception e) {
            log("Failed to export ontology", e);
            response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
            response.setContentLength(0);
        }
    } else {
        response.setStatus(HttpServletResponse.SC_UNSUPPORTED_MEDIA_TYPE);
        response.setContentLength(0);
    }
}

---

From source file:com.wxxr.nirvana.json.JSONUtil.java

public static void writeJSONToResponse(SerializationParams serializationParams) throws IOException {
    StringBuilder stringBuilder = new StringBuilder();
    if (StringUtils.isNotBlank(serializationParams.getSerializedJSON()))
        stringBuilder.append(serializationParams.getSerializedJSON());

    if (StringUtils.isNotBlank(serializationParams.getWrapPrefix()))
        stringBuilder.insert(0, serializationParams.getWrapPrefix());
    else if (serializationParams.isWrapWithComments()) {
        stringBuilder.insert(0, "/* ");
        stringBuilder.append(" */");
    } else if (serializationParams.isPrefix())
        stringBuilder.insert(0, "{}&& ");

    if (StringUtils.isNotBlank(serializationParams.getWrapSuffix()))
        stringBuilder.append(serializationParams.getWrapSuffix());

    String json = stringBuilder.toString();

    if (LOG.isDebugEnabled()) {
        LOG.debug("[JSON]" + json);
    }//from ww w.j  ava2s .  com

    HttpServletResponse response = serializationParams.getResponse();

    // status or error code
    if (serializationParams.getStatusCode() > 0)
        response.setStatus(serializationParams.getStatusCode());
    else if (serializationParams.getErrorCode() > 0)
        response.sendError(serializationParams.getErrorCode());

    // content type
    response.setContentType(
            serializationParams.getContentType() + ";charset=" + serializationParams.getEncoding());

    if (serializationParams.isNoCache()) {
        response.setHeader("Cache-Control", "no-cache");
        response.setHeader("Expires", "0");
        response.setHeader("Pragma", "No-cache");
    }

    if (serializationParams.isGzip()) {
        response.addHeader("Content-Encoding", "gzip");
        GZIPOutputStream out = null;
        InputStream in = null;
        try {
            out = new GZIPOutputStream(response.getOutputStream());
            in = new ByteArrayInputStream(json.getBytes(serializationParams.getEncoding()));
            byte[] buf = new byte[1024];
            int len;
            while ((len = in.read(buf)) > 0) {
                out.write(buf, 0, len);
            }
        } finally {
            if (in != null)
                in.close();
            if (out != null) {
                out.finish();
                out.close();
            }
        }

    } else {
        response.setContentLength(json.getBytes(serializationParams.getEncoding()).length);
        PrintWriter out = response.getWriter();
        out.print(json);
    }
}

---

From source file:org.kuali.mobility.sakai.controllers.SakaiController.java

@RequestMapping(value = "/{siteId}/attachment", method = RequestMethod.GET)
public String getAnnouncementAttachment(HttpServletRequest request, HttpServletResponse response,
        @PathVariable("siteId") String siteId, @RequestParam(value = "attachmentId") String attachmentId,
        @RequestParam(value = "type") String type, Model uiModel) {
    User user = (User) request.getSession().getAttribute(Constants.KME_USER_KEY);

    byte[] fileData = sakaiSiteService.findAnnouncementAttachment(siteId, attachmentId, user.getUserId());

    try {//www  .  jav  a 2 s .c o  m
        if (type.equals(Constants.URL_MIME_TYPE)) {
            String url = new String(fileData);
            response.sendRedirect(response.encodeRedirectURL(url));
        } else {
            response.setContentType(type);
            response.setContentLength(fileData.length);
            response.setHeader("Content-Disposition",
                    "attachment; filename=\"" + getFileName(attachmentId) + "\"");
            response.getOutputStream().write(fileData, 0, fileData.length);
            return null;
        }
    } catch (IOException e) {
        LOG.error(e.getMessage(), e);
    }
    return null;
}

---

From source file:com.Uploader.java

/**
 * Handles the HTTP <code>GET</code> method.
 *
 * @param request servlet request//from   www  .  j  av a 2 s .  c om
 * @param response servlet response
 * @throws ServletException if a servlet-specific error occurs
 * @throws IOException if an I/O error occurs
 */
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    //  processRequest(request, response);
    String fileName = request.getParameter("fileName");
    if (fileName == null || fileName.equals("")) {
        throw new ServletException("File Name can't be null or empty");
    }
    File file = new File(request.getServletContext().getAttribute("FILES_DIR") + File.separator + fileName);
    if (!file.exists()) {
        throw new ServletException("File doesn't exists on server.");
    }
    System.out.println("File location on server::" + file.getAbsolutePath());
    ServletContext ctx = getServletContext();
    InputStream fis = new FileInputStream(file);
    String mimeType = ctx.getMimeType(file.getAbsolutePath());
    response.setContentType(mimeType != null ? mimeType : "application/octet-stream");
    response.setContentLength((int) file.length());
    response.setHeader("Content-Disposition", "attachment; filename=\"" + fileName + "\"");

    ServletOutputStream os = response.getOutputStream();
    byte[] bufferData = new byte[1024];
    int read = 0;
    while ((read = fis.read(bufferData)) != -1) {
        os.write(bufferData, 0, read);
    }
    os.flush();
    os.close();
    fis.close();
    System.out.println("File downloaded at client successfully");
}

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