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.metamesh.opencms.rfs.RfsFileLoader.java

/**
 * @see org.opencms.loader.I_CmsResourceLoader#load(org.opencms.file.CmsObject, org.opencms.file.CmsResource, javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)
 *///from w w  w . ja v a2 s  .  com
public void load(CmsObject cms, CmsResource resource, HttpServletRequest req, HttpServletResponse res)
        throws IOException, CmsException {

    if (canSendLastModifiedHeader(resource, req, res)) {
        // no further processing required
        return;
    }

    // set response status to "200 - OK" (required for static export "on-demand")
    res.setStatus(HttpServletResponse.SC_OK);
    // set content length header
    res.setContentLength(resource.getLength());

    if (CmsWorkplaceManager.isWorkplaceUser(req)) {
        // prevent caching for Workplace users
        res.setDateHeader(CmsRequestUtil.HEADER_LAST_MODIFIED, System.currentTimeMillis());
        CmsRequestUtil.setNoCacheHeaders(res);
    } else {
        // set date last modified header
        res.setDateHeader(CmsRequestUtil.HEADER_LAST_MODIFIED, resource.getDateLastModified());

        // set "Expires" only if cache control is not already set
        if (!res.containsHeader(CmsRequestUtil.HEADER_CACHE_CONTROL)) {
            long expireTime = resource.getDateExpired();
            if (expireTime == CmsResource.DATE_EXPIRED_DEFAULT) {
                expireTime--;
                // flex controller will automatically reduce this to a reasonable value
            }
            // now set "Expires" header        
            CmsFlexController.setDateExpiresHeader(res, expireTime, m_clientCacheMaxAge);
        }
    }

    service(cms, resource, req, res);
}

From source file:com.orange.mmp.api.ws.rest.RestResponse.java

/**
 * Send the Rest Response based on the response Object and the HttpServletResponse 
 * //from  ww  w .  ja  v a  2 s . c  om
 * @param rootElement The XML root element name of the response
 * @param responseClass The Class of the response Object
 * @param responseObject The response object
 * @param errorType Service error type (body or http)
 * @param httpServletResponse The HttpServletResponse to use to send response
 * @throws MMPException
 */
@SuppressWarnings({ "unchecked", "deprecation" })
protected void send(String rootElement, Class responseClass, Object responseObject, String errorType,
        HttpServletResponse httpServletResponse) throws MMPException {
    if (errorType == null || errorType.length() == 0)
        errorType = RETURN_TYPE_BODY;

    //Specific status code handling
    if (this.responseContext.getStatusCode() >= 300) {
        try {
            if (errorType.equals(RETURN_TYPE_HTTP)) {
                httpServletResponse.setContentLength(0);
                httpServletResponse.setStatus(this.responseContext.getStatusCode(),
                        this.responseContext.getStatusMessage());
            } else {
                String responseStr = "<?xml version=\"1.0\" encoding=\"" + Constants.DEFAULT_ENCODING + "\"?>"
                        + "<error>" + "<code>" + this.responseContext.getStatusCode() + "</code>"
                        + "<message><![CDATA[" + this.responseContext.getStatusMessage() + "]]></message>"
                        + "</error>";

                responseContext.setContentLength(responseStr.getBytes(Constants.DEFAULT_ENCODING).length);
                responseContext.setContentType(com.orange.mmp.cadap.Constants.MIME_TYPE_XMLCONTENT);
                responseContext.setCharacterEncoding(Constants.DEFAULT_ENCODING);
                responseContext.getWriter().write(responseStr);
            }
        } catch (IOException ioe) {
            throw new MMPApiException(ioe);
        }
    }
    //Throwed Error handling
    else if (responseClass.isAssignableFrom(Throwable.class)) {
        this.parseThrowable((Throwable) responseObject);
        try {
            if (errorType.equals(RETURN_TYPE_HTTP)) {
                httpServletResponse.setContentLength(0);
                httpServletResponse.sendError(this.responseContext.getStatusCode(),
                        this.responseContext.getStatusMessage());
            } else {
                String responseStr = "<?xml version=\"1.0\" encoding=\"" + Constants.DEFAULT_ENCODING + "\"?>"
                        + "<error>" + "<code>" + this.responseContext.getStatusCode() + "</code>"
                        + "<message><![CDATA[" + this.responseContext.getStatusMessage() + "]]></message>"
                        + "</error>";

                responseContext.setContentLength(responseStr.getBytes(Constants.DEFAULT_ENCODING).length);
                responseContext.setContentType(com.orange.mmp.cadap.Constants.MIME_TYPE_XMLCONTENT);
                responseContext.setCharacterEncoding(Constants.DEFAULT_ENCODING);
                responseContext.getWriter().write(responseStr);
            }
        } catch (IOException ioe) {
            throw new MMPApiException(ioe);
        }
    }
    //Void handling (hardcoded for perfomances but can be done with JAXB using null element marshalling)
    else if (responseClass.getName().equals("void")) {
        String responseStr = "<?xml version=\"1.0\" encoding=\"" + Constants.DEFAULT_ENCODING + "\"?>" + "<"
                + rootElement + "/>";

        try {
            responseContext.setContentLength(responseStr.getBytes(Constants.DEFAULT_ENCODING).length);
            responseContext.setContentType(com.orange.mmp.cadap.Constants.MIME_TYPE_XMLCONTENT);
            responseContext.setCharacterEncoding(Constants.DEFAULT_ENCODING);
            responseContext.getWriter().write(responseStr);
        } catch (IOException ioe) {
            throw new MMPApiException(ioe);
        }
    }
    //Others cases
    else {
        try {
            String ae = this.requestContext.getHeader("accept-encoding");
            boolean gzip = (ae != null && ae.indexOf("gzip") != -1);
            ByteArrayInputStream in = null;
            //If response is an array of byte[], handled as binary data transfer (download)
            if (responseObject != null && responseObject.getClass().isAssignableFrom(byte[].class)
                    && !responseObject.getClass().isAssignableFrom(String.class)) {
                if (gzip) {
                    byte[] zippedResult = this.gzip((byte[]) responseObject);
                    responseContext.setContentLength(zippedResult.length);
                    responseContext.addHeader("Content-Encoding", "gzip");
                    in = new ByteArrayInputStream(zippedResult);
                } else {
                    responseContext.setContentLength(((byte[]) responseObject).length);
                    in = new ByteArrayInputStream((byte[]) responseObject);
                }
                if (responseContext.getContentType() == null) {
                    responseContext.setContentType(com.orange.mmp.cadap.Constants.MIME_TYPE_OCTETSTREAM);
                }
            }
            //XML Binding
            else {
                ByteArrayOutputStream out = new ByteArrayOutputStream();
                responseContext.setContentType(com.orange.mmp.cadap.Constants.MIME_TYPE_XMLCONTENT);
                try {
                    new XMLBinding().write(responseObject, out, responseClass, rootElement);
                } catch (BindingException be) {
                    throw new MMPException(be);
                }
                if (gzip) {
                    byte[] zippedResult = this.gzip(out.toByteArray());
                    responseContext.setContentLength(zippedResult.length);
                    responseContext.addHeader("Content-Encoding", "gzip");
                    in = new ByteArrayInputStream(zippedResult);
                } else {
                    responseContext.setContentLength(out.size());
                    in = new ByteArrayInputStream(out.toByteArray());
                }
            }

            IOUtils.copy(in, responseContext.getOutputStream());
        } catch (IOException ioe) {
            throw new MMPApiException(ioe);
        }
    }
}

From source file:architecture.ee.web.community.spring.controller.DownloadController.java

@RequestMapping(value = "/streams/photo/{linkId}", method = RequestMethod.GET)
@ResponseBody/*from ww  w  .  ja v a2  s.c o  m*/
public void handleStreamPhoto(@PathVariable("linkId") String linkId, HttpServletResponse response)
        throws IOException {

    try {
        Photo photo = photoStreamsManager.getPhotoById(linkId);
        Image image = imageManager.getImage(photo.getImageId());
        InputStream input = imageManager.getImageInputStream(image);
        String contentType = image.getContentType();
        int contentLength = image.getSize();

        response.setContentType(contentType);
        response.setContentLength(contentLength);
        IOUtils.copy(input, response.getOutputStream());
        response.flushBuffer();
    } catch (NotFoundException e) {
        response.sendError(404);
    }
}

From source file:com.qcadoo.report.internal.controller.ReportController.java

@RequestMapping(value = "generateReportForEntity/{templatePlugin}/{templateName}", method = RequestMethod.GET)
public void generateReportForEntity(@PathVariable("templatePlugin") final String templatePlugin,
        @PathVariable("templateName") final String templateName, @RequestParam("id") final List<Long> entityIds,
        @RequestParam("additionalArgs") final String requestAdditionalArgs, final HttpServletRequest request,
        final HttpServletResponse response, final Locale locale) throws ReportException {

    ReportService.ReportType reportType = getReportType(request);
    Map<String, String> additionalArgs = convertJsonStringToMap(requestAdditionalArgs);

    response.setContentType(reportType.getMimeType());

    try {/*from   w w w.j a  v  a 2 s .  c o m*/
        int bytes = copy(new ByteArrayInputStream(reportService.generateReportForEntity(templatePlugin,
                templateName, reportType, entityIds, additionalArgs, locale)), response.getOutputStream());

        response.setContentLength(bytes);
    } catch (IOException e) {
        throw new ReportException(ReportException.Type.ERROR_WHILE_COPYING_REPORT_TO_RESPONSE, e);
    }

    disableCache(response);
}

From source file:com.gantzgulch.sharing.controller.SharedFileDownloadController.java

@RequestMapping(method = RequestMethod.GET)
public void showUploadForm(@RequestParam(required = true) String id, final HttpServletResponse response,
        final HttpServletRequest request) {

    SharedFile sharedFile = sharedFileManager.findById(id);

    InputStream is = null;/*from  ww w.j ava2 s.c o  m*/
    OutputStream os = null;

    try {
        is = sharedFileManager.download(id, userManager.getCurrentUser());
        os = response.getOutputStream();

        response.setHeader("Content-Disposition", "attachment; filename=\"" + sharedFile.getFilename() + "\"");
        response.setHeader("Content-Type", "application/force-download");

        if (sharedFile.getSize() < Integer.MAX_VALUE) {
            response.setContentLength((int) sharedFile.getSize());
        }

        IOUtils.copyLarge(is, os);

        os.flush();
    } catch (IOException ioe) {
        throw new RuntimeException(ioe);
    } finally {
        IOUtils.closeQuietly(is);
    }
}

From source file:be.fedict.eid.dss.sp.servlet.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("document");

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

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

From source file:com.igame.app.controller.Image2Controller.java

@RequestMapping(value = "/app-{appid:\\d+}/{id:\\d+}-thumbnail.{type}", method = RequestMethod.GET)
public void thumbnail(HttpServletResponse response, @PathVariable("appid") Long appid,
        @PathVariable("id") Long id) {
    log.debug("thumbnail {}", id);
    Image image = imageService.get(id);
    System.out.println(/*  w ww .ja  v a 2 s .  co m*/
            "======= " + fileUploadDirectory + "/" + "app-" + appid + "/" + image.getThumbnailFilename());
    File imageFile = new File(fileUploadDirectory + "/" + "app-" + appid + "/" + image.getThumbnailFilename());
    response.setContentType(image.getContentType());
    response.setContentLength(image.getThumbnailSize().intValue());
    try {
        InputStream is = new FileInputStream(imageFile);
        IOUtils.copy(is, response.getOutputStream());
    } catch (IOException e) {
        log.error("Could not show thumbnail " + id, e);
    }
}

From source file:com.enonic.cms.server.service.portal.mvc.controller.AttachmentController.java

private void putBinaryOnResponse(boolean download, HttpServletResponse response, BinaryDataEntity binaryData)
        throws IOException {
    final BlobRecord blob = this.binaryService.fetchBinary(binaryData.getBinaryDataKey());
    HttpServletUtil.setContentDisposition(response, download, binaryData.getName());

    response.setContentType(HttpServletUtil.resolveMimeType(getServletContext(), binaryData.getName()));
    response.setContentLength((int) blob.getLength());

    ByteStreams.copy(blob.getStream(), response.getOutputStream());
}

From source file:com.gcrm.action.crm.BaseEditAction.java

/**
 * response?/*w  w w. j  a  v a  2 s .  c  o  m*/
 * 
 * @param bytes
 * @param fileName
 * @throws Exception
 */
protected void response2download(byte[] bytes, String fileName) throws Exception {
    HttpServletResponse response = ServletActionContext.getResponse();
    response.setContentType("application/octet-stream");
    response.setHeader("content-disposition", "attachment;filename=" + URLEncoder.encode(fileName, "UTF-8"));
    response.setContentLength(bytes.length);
    response.getOutputStream().write(bytes);
}

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

@RequestMapping(value = "/picture/{id}", method = RequestMethod.GET)
public void picture(HttpServletResponse response, @PathVariable Long id) {
    ImageEntity entity = imageDao.getById(id);
    String thumbnailFilename = entity.getName();

    File imageFile = new File(fileUploadDirectory + File.separatorChar + thumbnailFilename);

    response.setContentType(entity.getContentType());
    response.setContentLength((int) imageFile.length());
    try {/* w w  w.  j a va  2 s . c o m*/
        InputStream is = new FileInputStream(imageFile);
        IOUtils.copy(is, response.getOutputStream());
        // IOUtils.copy(is,new
        // FileOutputStream("c:\\tmp\\picture-"+thumbnailFilename));
    } catch (IOException e) {
        log.error("Could not show picture " + id, e);
    }
}