Example usage for javax.servlet.http HttpServletResponse setDateHeader

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

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  6. setDateHeader

Introduction

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

Prototype

public void setDateHeader(String name, long date);

Source Link

Document

Sets a response header with the given name and date-value.

Usage

From source file:org.opencms.flex.CmsFlexController.java

/**
 * Sets the <code>Expires</code> date header for a given http request.<p>
 * // w w  w  .ja v  a2s.co m
 * Also sets the <code>cache-control: max-age</code> header to the time of the expiration.
 * A certain upper limit is imposed on the expiration date parameter to ensure the resources are
 * not cached to long in proxies. This can be controlled by the <code>maxAge</code> parameter. 
 * If <code>maxAge</code> is lower then 0, then a default max age of 86400000 msec (1 day) is used.<p> 
 * 
 * @param res the response to set the "Expires" date header for
 * @param maxAge maximum amount of time in milliseconds the response remains valid
 * @param dateExpires the date to set (if this is not in the future, it is ignored)
 */
public static void setDateExpiresHeader(HttpServletResponse res, long dateExpires, long maxAge) {

    long now = System.currentTimeMillis();
    if ((dateExpires > now) && (dateExpires != CmsResource.DATE_EXPIRED_DEFAULT)) {

        // important: many caches (browsers or proxy) use the "Expires" header
        // to avoid re-loading of pages that are not expired
        // while this is right in general, no changes before the expiration date
        // will be displayed
        // therefore it is better to not use an expiration to far in the future 

        // if no valid max age is set, restrict it to 24 hrs
        if (maxAge < 0L) {
            maxAge = 86400000;
        }

        if ((dateExpires - now) > maxAge) {
            // set "Expires" header max one day into the future
            dateExpires = now + maxAge;
        }
        res.setDateHeader(CmsRequestUtil.HEADER_EXPIRES, dateExpires);

        // setting the "Expires" header only is not sufficient - even expired documents seems to be cached
        // therefore, the "cache-control: max-age" is also set
        res.setHeader(CmsRequestUtil.HEADER_CACHE_CONTROL,
                CmsRequestUtil.HEADER_VALUE_MAX_AGE + (maxAge / 1000L));
    }
}

From source file:mx.com.quadrum.contratos.controller.busquedas.MuestraPdf.java

@RequestMapping(value = "muestraPdf/{idContrato}", method = RequestMethod.GET)
public void muestraPdf(@PathVariable("idContrato") Integer idContrato, HttpSession session,
        HttpServletRequest request, HttpServletResponse response) {
    if (session.getAttribute(USUARIO) == null && session.getAttribute(CLIENTE) == null) {
        return;/*from ww  w.  ja va  2  s  . c o  m*/
    }
    Contrato contrato = contratoService.buscarPorId(idContrato);

    Usuario usuario = (Usuario) session.getAttribute(USUARIO);
    response.setContentType("application/pdf");

    response.setHeader("Cache-Control", "no-cache");
    response.setHeader("Pragma", "no-cache");
    response.setDateHeader("Expires", 0);
    File pdf = new File(
            USUARIOS + usuario.getMail() + "\\" + contrato.getNombre() + "\\" + contrato.getNombre() + ".pdf");
    try {
        InputStream in = new FileInputStream(pdf);
        byte[] data = new byte[in.available()];
        in.read(data);
        javax.servlet.ServletOutputStream servletoutputstream = response.getOutputStream();

        servletoutputstream.write(data);
        servletoutputstream.flush();
        servletoutputstream.close();
    } catch (IOException e) {
        e.printStackTrace();
    }

}

From source file:ru.org.linux.topic.UncommitedTopicsController.java

@RequestMapping
public ModelAndView viewAll(
        @RequestParam(value = "section", required = false, defaultValue = "0") int sectionId,
        HttpServletRequest request, HttpServletResponse response) {
    Template tmpl = Template.getTemplate(request);

    ModelAndView modelAndView = new ModelAndView("view-all");

    Section section = null;/*from   w  w w .  ja v  a  2s .  co  m*/
    if (sectionId != 0) {
        section = sectionService.getSection(sectionId);
        modelAndView.addObject("section", section);
        modelAndView.addObject("addlink", AddTopicController.getAddUrl(section));
    }

    response.setDateHeader("Expires", new Date(System.currentTimeMillis() - 20 * 3600 * 1000).getTime());
    response.setDateHeader("Last-Modified", new Date(System.currentTimeMillis() - 120 * 1000).getTime());

    String title;

    switch (sectionId) {
    case Section.SECTION_NEWS:
        title = "? ?";
        break;
    case Section.SECTION_POLLS:
        title = "? ?";
        break;
    case Section.SECTION_GALLERY:
        title = "? ?";
        break;
    case 0:
        title = "?  ?";
        break;
    default:
        title = "?: " + section.getName();
        break;
    }

    modelAndView.addObject("title", title);

    Calendar calendar = Calendar.getInstance();
    calendar.setTime(new Date());
    calendar.add(Calendar.MONTH, -3);

    List<Topic> messages = topicListService.getAllTopicsFeed(section, calendar.getTime());
    modelAndView.addObject("messages", prepareService.prepareMessagesForUser(messages, request.isSecure(),
            tmpl.getCurrentUser(), tmpl.getProf(), false));

    List<TopicListDto.DeletedTopic> deleted = topicListService.getDeletedTopics(sectionId,
            !tmpl.isModeratorSession());

    modelAndView.addObject("deletedTopics", deleted);
    modelAndView.addObject("sections", sectionService.getSectionList());

    return modelAndView;
}

From source file:org.apache.qpid.server.management.plugin.servlet.rest.SaslServlet.java

@Override
protected void doPostWithSubjectAndActor(final HttpServletRequest request, final HttpServletResponse response)
        throws IOException {
    checkSaslAuthEnabled(request);// www  .java  2  s  .com

    try {
        response.setContentType("application/json");
        response.setHeader("Cache-Control", "no-cache");
        response.setHeader("Pragma", "no-cache");
        response.setDateHeader("Expires", 0);

        HttpSession session = request.getSession();

        String mechanism = request.getParameter("mechanism");
        String id = request.getParameter("id");
        String saslResponse = request.getParameter("response");

        SubjectCreator subjectCreator = getSubjectCreator(request);

        if (mechanism != null) {
            if (id == null) {
                if (LOGGER.isDebugEnabled()) {
                    LOGGER.debug("Creating SaslServer for mechanism: " + mechanism);
                }
                SaslServer saslServer = subjectCreator.createSaslServer(mechanism, request.getServerName(),
                        null/*TODO*/);
                evaluateSaslResponse(request, response, session, saslResponse, saslServer, subjectCreator);
            } else {
                response.setStatus(HttpServletResponse.SC_EXPECTATION_FAILED);
                session.removeAttribute(ATTR_ID);
                session.removeAttribute(ATTR_SASL_SERVER);
                session.removeAttribute(ATTR_EXPIRY);
            }
        } else {
            if (id != null) {
                if (id.equals(session.getAttribute(ATTR_ID))
                        && System.currentTimeMillis() < (Long) session.getAttribute(ATTR_EXPIRY)) {
                    SaslServer saslServer = (SaslServer) session.getAttribute(ATTR_SASL_SERVER);
                    evaluateSaslResponse(request, response, session, saslResponse, saslServer, subjectCreator);
                } else {
                    response.setStatus(HttpServletResponse.SC_EXPECTATION_FAILED);
                    session.removeAttribute(ATTR_ID);
                    session.removeAttribute(ATTR_SASL_SERVER);
                    session.removeAttribute(ATTR_EXPIRY);
                }
            } else {
                response.setStatus(HttpServletResponse.SC_EXPECTATION_FAILED);
                session.removeAttribute(ATTR_ID);
                session.removeAttribute(ATTR_SASL_SERVER);
                session.removeAttribute(ATTR_EXPIRY);
            }
        }
    } catch (IOException e) {
        LOGGER.error("Error processing SASL request", e);
        throw e;
    } catch (RuntimeException e) {
        LOGGER.error("Error processing SASL request", e);
        throw e;
    }
}

From source file:com.yanbang.portal.controller.PortalController.java

/**
 * ???/*w  w w  . ja  v a2s  .  c  o  m*/
 * 
 * @param request
 * @param response
 * @return
 * @throws Exception
 */
@RequestMapping(params = "action=handleRnd")
public void handleRnd(HttpServletRequest request, HttpServletResponse response) throws Exception {
    response.setHeader("Cache-Control", "no-store");
    response.setHeader("Pragma", "no-cache");
    response.setDateHeader("Expires", 0L);
    response.setContentType("image/jpeg");
    BufferedImage image = new BufferedImage(65, 25, BufferedImage.TYPE_INT_RGB);
    Graphics g = image.getGraphics();
    g.setColor(Color.GRAY);
    g.fillRect(0, 0, 65, 25);
    g.setColor(Color.yellow);
    Font font = new Font("", Font.BOLD, 20);
    g.setFont(font);
    Random r = new Random();
    String rnd = "";
    int ir = r.nextInt(10);
    rnd = rnd + "" + ir;
    g.drawString("" + ir, 5, 18);
    g.setColor(Color.red);
    ir = r.nextInt(10);
    rnd = rnd + "" + ir;
    g.drawString("" + ir, 20, 18);
    g.setColor(Color.blue);
    ir = r.nextInt(10);
    rnd = rnd + "" + ir;
    g.drawString("" + ir, 35, 18);
    g.setColor(Color.green);
    ir = r.nextInt(10);
    rnd = rnd + "" + ir;
    g.drawString("" + ir, 50, 18);
    request.getSession().setAttribute("RND", rnd);
    ServletOutputStream out = response.getOutputStream();
    out.write(ImageUtil.imageToBytes(image, "gif"));
    out.flush();
    out.close();
}

From source file:org.openxdata.server.servlet.MultimediaServlet.java

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

    //Setting header from hear ensures that user is not given a blank page
    //if there is not data
    response.setHeader("Cache-Control", "no-cache");
    response.setHeader("Pragma", "no-cache");
    response.setDateHeader("Expires", -1);
    response.setHeader("Cache-Control", "no-store");

    String sFormId = request.getParameter("formId");
    String xpath = request.getParameter("xpath");
    String contentType = request.getParameter("contentType");
    String name = request.getParameter("name");

    if ("recentbinary".equals(request.getParameter("action"))) {
        byte[] postData = (byte[]) getSessionData(request, sFormId,
                KEY_MULTIMEDIA_POST_DATA + getFieldKey(sFormId, xpath)); //(byte[])session.getAttribute(KEY_MULTIMEDIA_POST_DATA+getFieldKey(sFormId,xpath));
        if (postData != null) {
            response.setContentType((String) getSessionData(request, sFormId,
                    KEY_MULTIMEDIA_POST_CONTENT_TYPE + getFieldKey(sFormId, xpath)));
            response.getOutputStream().write(postData);

            setSessionData(request, sFormId, KEY_MULTIMEDIA_POST_CONTENT_TYPE + getFieldKey(sFormId, xpath),
                    null);//from  w  ww  .j a  va 2s  .c  o  m
            setSessionData(request, sFormId, KEY_MULTIMEDIA_POST_DATA + getFieldKey(sFormId, xpath), null);
        }
        return;
    }

    try {
        if (name == null || name.trim().length() == 0)
            name = "multimedia.3gp";

        if (sFormId == null || sFormId.trim().length() == 0)
            return;

        if (xpath == null || xpath.trim().length() == 0)
            return;

        byte[] bytes = (byte[]) getSessionData(request, sFormId,
                KEY_MULTIMEDIA_POST_DATA + getFieldKey(sFormId, xpath));

        String value = null;

        if (bytes == null) {
            int id = Integer.parseInt(sFormId);
            FormData formData = studyManagerService.getFormData(id);
            if (formData == null)
                return;

            String xml = formData.getData();
            if (xml == null || xml.trim().length() == 0)
                return;

            Document doc = XmlUtil.fromString2Doc(xml);
            if (doc == null)
                return;

            value = XmlUtil.getNodeValue(doc, xpath);
        }
        if (bytes != null || (value != null && value.trim().length() > 0)) {
            if (bytes == null)
                bytes = Base64.decodeBase64(value.getBytes());

            if (bytes != null) {
                if (contentType != null && contentType.trim().length() > 0) {
                    response.setContentType(contentType);

                    //Send it as an attachement such that atleast firefox can also detect it
                    if (contentType.contains("video") || contentType.contains("audio"))
                        response.setHeader(OpenXDataConstants.HTTP_HEADER_CONTENT_DISPOSITION,
                                OpenXDataConstants.HTTP_HEADER_CONTENT_DISPOSITION_VALUE + name + "\"");
                }

                response.getOutputStream().write(bytes);
            }
        } //This elese if is to prevent a blank page if there is no data.
        else if (contentType != null && (contentType.contains("video") || contentType.contains("audio")))
            response.setHeader(OpenXDataConstants.HTTP_HEADER_CONTENT_DISPOSITION,
                    OpenXDataConstants.HTTP_HEADER_CONTENT_DISPOSITION_VALUE + name + "\"");
    } catch (Exception ex) {
        log.error(ex.getLocalizedMessage(), ex);
    }
}

From source file:org.bahmni.module.bahmnicore.web.filter.CacheHeadersFilter.java

@Override
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
        throws IOException, ServletException {

    chain.doFilter(request, response);/*from   w  w  w  . j  av a  2 s  .  c  o m*/

    if (response instanceof HttpServletResponse) {
        HttpServletResponse httpResponse = (HttpServletResponse) response;
        HttpServletRequest httpRequest = (HttpServletRequest) request;
        if ("GET".equals(httpRequest.getMethod()) && httpResponse.getStatus() == 200) {
            int expiresDuration = NumberUtils.toInt(Context.getAdministrationService()
                    .getGlobalProperty("bahmni.cacheHeadersFilter.expiresDuration"), 0);
            log.debug(String.format("Setting expires header with duration %s", expiresDuration));
            httpResponse.setDateHeader("Expires", DateUtils.addMinutes(new Date(), expiresDuration).getTime());
        }
    }
}

From source file:org.kuali.mobility.writer.controllers.WriterMediaController.java

@RequestMapping(value = "/{mediaId}", method = RequestMethod.GET)
public void getMedia(@PathVariable int mediaId,
        @RequestParam(value = "thumb", required = false, defaultValue = "false") boolean thumb,
        HttpServletRequest request, HttpServletResponse response) throws IOException {

    long dateChanged = request.getDateHeader("If-Modified-Since") / 1000;

    File mediaFile = service.getMediaFile(mediaId, thumb);
    long mediaChanged = mediaFile.lastModified() / 1000;
    if (dateChanged == mediaChanged) {
        response.setStatus(HttpServletResponse.SC_NOT_MODIFIED);
        return;//from ww  w  .  j ava 2 s  . co  m
    }
    Media media = service.getMedia(mediaId);
    response.setContentType(media.getMimeType());
    response.setDateHeader("Last-Modified", mediaFile.lastModified());

    int bytesWritten = IOUtils.copy(new FileInputStream(mediaFile), response.getOutputStream());
    response.setContentLength(bytesWritten);

}

From source file:org.openxdata.server.servlet.FormSaveServlet.java

@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    HttpSession session = request.getSession();

    response.setHeader(OpenXDataConstants.HTTP_HEADER_CONTENT_DISPOSITION,
            OpenXDataConstants.HTTP_HEADER_CONTENT_DISPOSITION_VALUE + session.getAttribute(KEY_FILE_NAME));
    response.setContentType(OpenXDataConstants.HTTP_HEADER_CONTENT_TYPE_XML);

    response.setHeader("Cache-Control", "no-cache");
    response.setHeader("Pragma", "no-cache");
    response.setDateHeader("Expires", -1);
    response.setHeader("Cache-Control", "no-store");

    response.getOutputStream().print((String) session.getAttribute(KEY_FILE_CONTENTS));
}

From source file:org.apache.ofbiz.base.util.UtilHttp.java

public static void setResponseBrowserProxyNoCache(HttpServletResponse response) {
    long nowMillis = System.currentTimeMillis();
    response.setDateHeader("Expires", nowMillis);
    response.setDateHeader("Last-Modified", nowMillis); // always modified
    response.setHeader("Cache-Control", "no-store, no-cache, must-revalidate"); // HTTP/1.1
    response.addHeader("Cache-Control", "post-check=0, pre-check=0, false");
    response.setHeader("Pragma", "no-cache"); // HTTP/1.0
}