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:gsn.http.ContainerInfoHandler.java

public void handle(HttpServletRequest request, HttpServletResponse response) throws IOException {
    response.setStatus(HttpServletResponse.SC_OK);
    String reqName = request.getParameter("name");

    //Added by Behnaz
    HttpSession session = request.getSession();
    User user = (User) session.getAttribute("user");

    response.setHeader("Cache-Control", "no-store");
    response.setDateHeader("Expires", 0);
    response.setHeader("Pragma", "no-cache");

    String omitLatestValuesPar = request.getParameter("omit_latest_values");
    boolean omitLatestValues = false;
    if (omitLatestValuesPar != null && "true".equals(omitLatestValuesPar)) {
        omitLatestValues = true;// w  w  w . j a  v a 2s .c  o m
    }

    //System.out.println( "The handle was called" );
    // if (reqName != null) System.out.println("requst " + reqName);
    // if (user != null) System.out.println("User " + user.getUserName());
    response.getWriter().write(buildOutput(reqName, user, omitLatestValues));
}

From source file:org.openmrs.module.reporting.web.reports.ManageReportsController.java

/**
 * Provide all reports designs, optionally including those that are retired, to a page 
 * that lists them and provides options for working with them.
 *//*from   w  w  w  .  ja  va 2 s . c  om*/
@RequestMapping("/module/reporting/reports/viewReportDesignResource")
public void viewDesignContent(ModelMap model, HttpServletResponse response,
        @RequestParam(required = true, value = "designUuid") String designUuid,
        @RequestParam(required = true, value = "resourceUuid") String resourceUuid) {

    ReportDesign d = Context.getService(ReportService.class).getReportDesignByUuid(designUuid);
    ReportDesignResource r = d.getResourceByUuid(resourceUuid);

    response.setHeader("Pragma", "No-cache");
    response.setDateHeader("Expires", 0);
    response.setHeader("Cache-Control", "no-cache");
    response.setHeader("Content-Disposition", "attachment; filename=" + r.getResourceFilename());
    try {
        response.getOutputStream().write(r.getContents());
    } catch (Exception e) {
        throw new RuntimeException("Unable to render contents of file", e);
    }
}

From source file:io.awacs.demo.TestController.java

@RequestMapping("/img")
public void img(HttpServletRequest request, HttpServletResponse response) throws Exception {
    try {// ww  w .  j a va  2 s  .  c  om
        StringBuilder sb = new StringBuilder();
        for (int i = 0; i < 4; i++) {
            int r = random.nextInt(36);
            bis2();
            if (r < 10) {
                sb.append((char) ('0' + r));
            } else {
                sb.append((char) ('A' + r - 10));
            }
        }
        BufferedImage img = cage.drawImage(sb.toString());
        response.setHeader("Cache-Control", "no-store");
        response.setHeader("Pragma", "no-cache");
        response.setDateHeader("Expires", 0);
        response.setContentType("image/jpeg");
        ServletOutputStream responseOutputStream = response.getOutputStream();
        ImageIO.write(img, "JPEG", responseOutputStream);
    } catch (Exception e) {
        throw e;
    }
}

From source file:org.broadleafcommerce.cms.web.file.StaticAssetView.java

@Override
public void render(Map<String, ?> model, HttpServletRequest request, HttpServletResponse response)
        throws Exception {
    String cacheFilePath = (String) model.get("cacheFilePath");
    BufferedInputStream bis = new BufferedInputStream(new FileInputStream(cacheFilePath));
    try {//from   w  w w.ja  va  2 s . c o m
        String mimeType = (String) model.get("mimeType");
        response.setContentType(mimeType);
        if (!browserAssetCachingEnabled) {
            response.setHeader("Cache-Control", "no-cache");
            response.setHeader("Pragma", "no-cache");
            response.setDateHeader("Expires", 0);
        } else {
            response.setHeader("Cache-Control", "public");
            response.setHeader("Pragma", "cache");
            if (!StringUtils.isEmpty(request.getHeader("If-Modified-Since"))) {
                long lastModified = request.getDateHeader("If-Modified-Since");
                Calendar last = Calendar.getInstance();
                last.setTime(new Date(lastModified));
                Calendar check = Calendar.getInstance();
                check.add(Calendar.SECOND, -2 * new Long(cacheSeconds).intValue());
                if (check.compareTo(last) < 0) {
                    response.setStatus(HttpServletResponse.SC_NOT_MODIFIED);
                    return;
                }
            } else {
                Calendar check = Calendar.getInstance();
                check.add(Calendar.SECOND, -1 * new Long(cacheSeconds).intValue());
                response.setDateHeader("Last-Modified", check.getTimeInMillis());
            }
            Calendar cal = Calendar.getInstance();
            cal.add(Calendar.SECOND, new Long(cacheSeconds).intValue());
            response.setDateHeader("Expires", cal.getTimeInMillis());
        }
        OutputStream os = response.getOutputStream();
        boolean eof = false;
        while (!eof) {
            int temp = bis.read();
            if (temp < 0) {
                eof = true;
            } else {
                os.write(temp);
            }
        }
        os.flush();
    } catch (Exception e) {
        if (e.getCause() instanceof SocketException) {
            if (LOG.isDebugEnabled()) {
                LOG.debug("Unable to stream asset", e);
            }
        } else {
            LOG.error("Unable to stream asset", e);
            throw e;
        }
    } finally {
        try {
            bis.close();
        } catch (Throwable e) {
            //do nothing
        }
    }
}

From source file:org.jsche.common.inteceptor.LoginInteceptor.java

@Override
public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler)
        throws Exception {
    if (handler.getClass().isAssignableFrom(HandlerMethod.class)) {
        RequiredLogin login = ((HandlerMethod) handler).getMethodAnnotation(RequiredLogin.class);
        if (login == null || !login.value()) {
            // ignore this session check
            return true;
        } else {//  w  w w  . j av a2s  .co  m
            if (request.getSession().getAttribute(Constants.LOGIN_USER) != null) {
                return true;
            } else {
                request.setAttribute(Constants.ERROR_ATTR_NAME, ErrorMessage.LOGIN_REQUIRED);
                response.setDateHeader("expries", -1);
                response.setHeader("Cache-Control", "no-cache");
                response.setHeader("Pragma", "no-cache");
                response.sendRedirect("/login");
                return false;
            }
        }
    }
    return true;
}

From source file:be.fedict.eid.dss.portal.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(this.documentSessionAttribute);

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

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

From source file:org.polymap.core.mapeditor.services.SimpleJsonServer.java

protected void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    log.info("Accept-Encoding: " + request.getHeader("Accept-Encoding"));
    log.info("### JSON: about to encode JSON....");
    boolean gzip = request.getHeader("Accept-Encoding").toLowerCase().contains("gzip");

    // prevent caching
    response.setHeader("Cache-Control", "no-cache"); // HTTP 1.1
    response.setHeader("Pragma", "no-cache"); // HTTP 1.0
    response.setDateHeader("Expires", 0); // prevents caching at the proxy
    response.setCharacterEncoding("UTF-8");

    Timer timer = new Timer();
    log.debug("SimpleJsonServer Output: ");
    OutputStream debugOut = /*log.isDebugEnabled() 
                            ? new TeeOutputStream( response.getOutputStream(), System.out )
                            : */response.getOutputStream();

    CountingOutputStream out = null, cout2 = null;
    if (gzip) {//from w w w .  jav a2  s .co  m
        response.setHeader("Content-Encoding", "gzip");
        //response.setHeader( "Content-Type", "text/javascript" );
        cout2 = new CountingOutputStream(debugOut);
        out = new CountingOutputStream(new GZIPOutputStream(cout2));
    } else {
        out = new CountingOutputStream(debugOut);
    }

    String layerName = StringUtils.substringAfterLast(request.getPathInfo(), "/");
    JsonEncoder layer = null;
    synchronized (layers) {
        layer = layers.get(layerName);
    }
    layer.encode(out, response.getCharacterEncoding());
    out.close();

    log.info("    JSON bytes: " + out.getCount() + " (" + timer.elapsedTime() + "ms)");
    if (cout2 != null) {
        log.info("    GZIPed bytes written: " + cout2.getCount());
    }

    if (layer.isOneShot()) {
        removeLayer(layer);
        log.info("    Layer is oneShot -> removed.");
    }
}

From source file:org.efaps.ui.servlet.FileServlet.java

/**
 * Search for the requested file in the folder corresponding to the user of the context.
 *
 * @param _req request variable//ww w  .  ja  va2s. com
 * @param _resp response variable
 * @throws ServletException on error
 */
@Override
protected void doGet(final HttpServletRequest _req, final HttpServletResponse _resp) throws ServletException {
    String fileName = _req.getRequestURI();
    fileName = fileName.substring(fileName.lastIndexOf('/') + 1);
    try {
        final Person pers = Context.getThreadContext().getPerson();
        if (pers != null) {
            final File file = getFile(pers.getId(), fileName);
            if (file != null && file.exists()) {
                _resp.setContentType(getServletContext().getMimeType(file.getName()));
                _resp.setContentLength((int) file.length());
                _resp.setDateHeader("Last-Modified", System.currentTimeMillis());
                _resp.setDateHeader("Expires", System.currentTimeMillis());
                _resp.addHeader("Content-Disposition", "inline; filename=\"" + file.getName() + "\"");
                _resp.setHeader("Cache-Control", "max-age=10");
                final FileInputStream input = new FileInputStream(file);
                IOUtils.copy(input, _resp.getOutputStream());
            }
        }
    } catch (final EFapsException e) {
        FileServlet.LOG.error("EFapsException", e);
        throw new ServletException(e);
    } catch (final IOException e) {
        FileServlet.LOG.error("IOException", e);
        throw new ServletException(e);
    }
}

From source file:org.kuali.mobility.icons.controllers.WebIconsController.java

/**
 * Get the icon matching all the criteria of the request and write it the the HttpServletResponse.
 *
 * @param iconName Name of the icon to get.
 * @param theme    The theme to get the icon in.
 * @param size     Size to get the icon in.
 * @param request  The HttpServletRequest being handled.
 * @param response The HttpServletResponse that will reply.
 * @throws IOException Thrown if there is an exception creating the icon or writing it to the response.
 *//*  w  w  w.j a  v  a2  s . c  o m*/
private void writeIconToHttpResponse(String iconName, String theme, int size, HttpServletRequest request,
        HttpServletResponse response) throws IOException {
    long dateChanged = request.getDateHeader("If-Modified-Since") / 1000;
    File imageFile = iconService.getImageFile(iconName, theme, size);

    long mediaChanged = imageFile.lastModified() / 1000;
    if (dateChanged == mediaChanged) {
        response.setStatus(HttpServletResponse.SC_NOT_MODIFIED);
        return;
    }
    response.setContentType("image/png");
    InputStream imageInput = new FileInputStream(imageFile);
    response.setDateHeader("Last-Modified", imageFile.lastModified());

    int bytesWritten = IOUtils.copy(imageInput, response.getOutputStream());
    response.setContentLength(bytesWritten);
    response.flushBuffer();
}

From source file:org.apache.jasper.servlet.JspServletWrapper.java

public void service(HttpServletRequest request, HttpServletResponse response, boolean precompile)
        throws ServletException, IOException, FileNotFoundException {
    try {/*from   w ww . j  a  v a2 s  . com*/

        if (ctxt.isRemoved()) {
            throw new FileNotFoundException(jspUri);
        }

        if ((available > 0L) && (available < Long.MAX_VALUE)) {
            response.setDateHeader("Retry-After", available);
            response.sendError(HttpServletResponse.SC_SERVICE_UNAVAILABLE,
                    Localizer.getMessage("jsp.error.unavailable"));
        }

        if (options.getDevelopment() || firstTime) {
            synchronized (this) {
                ctxt.compile();
            }
        }

        if (reload) {
            getServlet();
        }

        // If a page is to only to be precompiled return.
        if (precompile) {
            return;
        }

        if (theServlet instanceof SingleThreadModel) {
            // sync on the wrapper so that the freshness
            // of the page is determined right before servicing
            synchronized (this) {
                theServlet.service(request, response);
            }
        } else {
            theServlet.service(request, response);
        }

    } catch (UnavailableException ex) {
        String includeRequestUri = (String) request.getAttribute("javax.servlet.include.request_uri");
        if (includeRequestUri != null) {
            // This file was included. Throw an exception as
            // a response.sendError() will be ignored by the
            // servlet engine.
            throw ex;
        } else {
            int unavailableSeconds = ex.getUnavailableSeconds();
            if (unavailableSeconds <= 0) {
                unavailableSeconds = 60; // Arbitrary default
            }
            available = System.currentTimeMillis() + (unavailableSeconds * 1000L);
            response.sendError(HttpServletResponse.SC_SERVICE_UNAVAILABLE, ex.getMessage());
        }
    } catch (FileNotFoundException ex) {
        String includeRequestUri = (String) request.getAttribute("javax.servlet.include.request_uri");
        if (includeRequestUri != null) {
            // This file was included. Throw an exception as
            // a response.sendError() will be ignored by the
            // servlet engine.
            throw new ServletException(ex);
        } else {
            try {
                response.sendError(HttpServletResponse.SC_NOT_FOUND, ex.getMessage());
            } catch (IllegalStateException ise) {
                log.error(Localizer.getMessage("jsp.error.file.not.found", ex.getMessage()), ex);
            }
        }
    } catch (ServletException ex) {
        throw ex;
    } catch (IOException ex) {
        throw ex;
    } catch (IllegalStateException ex) {
        throw ex;
    } catch (Exception ex) {
        throw new JasperException(ex);
    }
}