Example usage for javax.servlet.http HttpServletResponse setDateHeader

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

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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.apache.solr.servlet.cache.HttpCacheHeaderUtil.java

/**
 * Set the Cache-Control HTTP header (and Expires if needed)
 * based on the SolrConfig./*w ww. j av a  2 s. c  om*/
 * @param conf The config of the SolrCore handling this request
 * @param resp The servlet response object to modify
 * @param method The request method (GET, POST, ...) used by this request
 */
public static void setCacheControlHeader(final SolrConfig conf, final HttpServletResponse resp,
        final Method method) {
    // We do not emit HTTP header for POST and OTHER request types
    if (Method.POST == method || Method.OTHER == method) {
        return;
    }
    final String cc = conf.getHttpCachingConfig().getCacheControlHeader();
    if (null != cc) {
        resp.setHeader("Cache-Control", cc);
    }
    Long maxAge = conf.getHttpCachingConfig().getMaxAge();
    if (null != maxAge) {
        resp.setDateHeader("Expires", System.currentTimeMillis() + (maxAge * 1000L));
    }

    return;
}

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

/**
 * Sets the "last modified" date header for a given http request.<p>
 * // ww  w.j  av  a 2s. c  o  m
 * @param res the response to set the "last modified" date header for
 * @param dateLastModified the date to set (if this is lower then 0, the current time is set)
 */
public static void setDateLastModifiedHeader(HttpServletResponse res, long dateLastModified) {

    if (dateLastModified > -1) {
        // set date last modified header (precision is only second, not millisecond
        res.setDateHeader(CmsRequestUtil.HEADER_LAST_MODIFIED, (dateLastModified / 1000) * 1000);
    } else {
        // this resource can not be optimized for "last modified", use current time as header
        res.setDateHeader(CmsRequestUtil.HEADER_LAST_MODIFIED, System.currentTimeMillis());
    }
}

From source file:com.ccf.util.ModDateHeaderUtil.java

/**
 * ??/*from  w w  w.j a  va 2 s.  c om*/
 * @param response
 */
public static void setLastModifiedHeader(HttpServletResponse response) {
    SimpleDateFormat df = new SimpleDateFormat("E, d MMM yyyy HH:mm:ss");
    Calendar lastModifiedCal = Calendar.getInstance(TimeZone.getTimeZone("GMT"));
    String lastModified = df.format(lastModifiedCal.getTime());

    Calendar cal = Calendar.getInstance(TimeZone.getTimeZone("GMT"));
    response.setHeader("Date", df.format(cal.getTime()) + " GMT");
    cal.add(Calendar.DAY_OF_MONTH, 1);
    // response.setHeader("Expires",df.format(cal.getTime())+" GMT");
    response.setHeader("Retry-After", df.format(cal.getTime()) + " GMT");
    response.setHeader("Cache-Control", "public");
    //response.setHeader("Last-Modified",lastModified+" GMT");

    response.setDateHeader("Last-Modified", System.currentTimeMillis() - 60 * 60 * 1000);
    // Force clients to revalidate each time
    // See RFC 2616 (HTTP 1.1 spec) secs 14.21, 13.2.1
    response.setDateHeader("Expires", System.currentTimeMillis() + (expiresOffset * 1000));
    // We may also want this (See 13.2.1 and 14.9.4)
    // response.setHeader("Cache-Control","must-revalidate");
}

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

/**
 * @param response/*from w w w . ja  v  a2  s  .co m*/
 * @param topicListForm
 */
private static void setExpireHeaders(HttpServletResponse response, TopicListRequest topicListForm) {
    if (topicListForm.getMonth() == null) {
        response.setDateHeader("Expires", System.currentTimeMillis() + 60 * 1000);
        response.setDateHeader("Last-Modified", System.currentTimeMillis());
    } else {
        long expires = System.currentTimeMillis() + 30 * 24 * 60 * 60 * 1000L;

        Calendar calendar = Calendar.getInstance();
        calendar.set(topicListForm.getYear(), topicListForm.getMonth() - 1, 1);
        calendar.add(Calendar.MONTH, 1);

        long lastmod = calendar.getTimeInMillis();

        if (lastmod < System.currentTimeMillis()) {
            response.setDateHeader("Expires", expires);
            response.setDateHeader("Last-Modified", lastmod);
        } else {
            response.setDateHeader("Expires", System.currentTimeMillis() + 60 * 1000);
            response.setDateHeader("Last-Modified", System.currentTimeMillis());
        }
    }

}

From source file:cn.guoyukun.spring.web.utils.DownloadUtils.java

public static void download(HttpServletRequest request, HttpServletResponse response, String filePath,
        String displayName) throws IOException {
    File file = new File(filePath);

    if (StringUtils.isEmpty(displayName)) {
        displayName = file.getName();// w  w w  . j a va 2s.c om
    }

    if (!file.exists() || !file.canRead()) {
        response.setContentType("text/html;charset=utf-8");
        response.getWriter().write("??");
        return;
    }

    String userAgent = request.getHeader("User-Agent");
    boolean isIE = (userAgent != null) && (userAgent.toLowerCase().indexOf("msie") != -1);

    response.reset();
    response.setHeader("Pragma", "No-cache");
    response.setHeader("Cache-Control", "must-revalidate, no-transform");
    response.setDateHeader("Expires", 0L);

    response.setContentType("application/x-download");
    response.setContentLength((int) file.length());

    String displayFilename = displayName.substring(displayName.lastIndexOf("_") + 1);
    displayFilename = displayFilename.replace(" ", "_");
    if (isIE) {
        displayFilename = URLEncoder.encode(displayFilename, "UTF-8");
        response.setHeader("Content-Disposition", "attachment;filename=\"" + displayFilename + "\"");
    } else {
        displayFilename = new String(displayFilename.getBytes("UTF-8"), "ISO8859-1");
        response.setHeader("Content-Disposition", "attachment;filename=" + displayFilename);
    }
    BufferedInputStream is = null;
    OutputStream os = null;
    try {

        os = response.getOutputStream();
        is = new BufferedInputStream(new FileInputStream(file));
        IOUtils.copy(is, os);
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        IOUtils.closeQuietly(is);
    }
}

From source file:ch.entwine.weblounge.common.impl.request.Http11ProtocolHandler.java

/**
 * Method generateHeaders./*w  w w.  j a  v  a 2  s .  c o  m*/
 * 
 * @param resp
 * @param type
 */
public static void generateHeaders(HttpServletResponse resp, Http11ResponseType type) {

    /* generate headers only once! */
    if (type.headers)
        return;
    type.headers = true;

    /* adjust the statistics */
    ++stats[STATS_HEADER_GENERATED];
    incResponseStats(type.type, headerStats);

    /* set the date header */
    resp.setDateHeader(HEADER_DATE, type.time);

    /* check expires */
    if (type.expires > type.time + MS_PER_YEAR) {
        type.expires = type.time + MS_PER_YEAR;
        log.warn("Expiration date too far in the future. Adjusting.");
    }

    /* set the standard headers and status code */
    switch (type.type) {
    case RESPONSE_PARTIAL_CONTENT:
        if (type.expires > type.time)
            resp.setDateHeader(HEADER_EXPIRES, type.expires);
        if (type.modified > 0) {
            resp.setHeader(HEADER_ETAG, Http11Utils.calcETag(type.modified));
            resp.setDateHeader(HEADER_LAST_MODIFIED, type.modified);
        }
        if (type.size < 0 || type.from < 0 || type.to < 0 || type.from > type.to || type.to > type.size) {
            resp.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
            break;
        }
        resp.setContentLength((int) type.size);
        resp.setHeader(HEADER_CONTENT_RANGE, "bytes " + type.from + "-" + type.to + "/" + type.size);
        resp.setStatus(HttpServletResponse.SC_PARTIAL_CONTENT);
        break;

    case RESPONSE_OK:
        if (type.expires > type.time) {
            resp.setDateHeader(HEADER_EXPIRES, type.expires);
        } else if (type.expires == 0) {
            resp.setHeader(HEADER_CACHE_CONTROL, "no-cache");
            resp.setHeader(HEADER_PRAGMA, "no-cache");
            resp.setDateHeader(HEADER_EXPIRES, 0);
        }
        if (type.modified > 0) {
            resp.setHeader(HEADER_ETAG, Http11Utils.calcETag(type.modified));
            resp.setDateHeader(HEADER_LAST_MODIFIED, type.modified);
        }
        if (type.size >= 0)
            resp.setContentLength((int) type.size);
        resp.setStatus(HttpServletResponse.SC_OK);
        break;

    case RESPONSE_NOT_MODIFIED:
        if (type.expires > type.time)
            resp.setDateHeader(HEADER_EXPIRES, type.expires);
        if (type.modified > 0)
            resp.setHeader(HEADER_ETAG, Http11Utils.calcETag(type.modified));
        resp.setStatus(HttpServletResponse.SC_NOT_MODIFIED);
        break;

    case RESPONSE_METHOD_NOT_ALLOWED:
        resp.setHeader(HEADER_ALLOW, "GET, POST, HEAD");
        resp.setStatus(HttpServletResponse.SC_METHOD_NOT_ALLOWED);
        break;

    case RESPONSE_PRECONDITION_FAILED:
        if (type.expires > type.time)
            resp.setDateHeader(HEADER_EXPIRES, type.expires);
        if (type.modified > 0) {
            resp.setHeader(HEADER_ETAG, Http11Utils.calcETag(type.modified));
            resp.setDateHeader(HEADER_LAST_MODIFIED, type.modified);
        }
        resp.setStatus(HttpServletResponse.SC_PRECONDITION_FAILED);
        break;

    case RESPONSE_REQUESTED_RANGE_NOT_SATISFIABLE:
        if (type.expires > type.time)
            resp.setDateHeader(HEADER_EXPIRES, type.expires);
        if (type.modified > 0) {
            resp.setHeader(HEADER_ETAG, Http11Utils.calcETag(type.modified));
            resp.setDateHeader(HEADER_LAST_MODIFIED, type.modified);
        }
        if (type.size >= 0)
            resp.setHeader(HEADER_CONTENT_RANGE, "*/" + type.size);
        break;

    case RESPONSE_INTERNAL_SERVER_ERROR:
    default:
        resp.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
    }
}

From source file:org.shredzone.cilla.view.interceptor.GenericViewInterceptor.java

@Override
public void onRequest(HttpServletRequest req, HttpServletResponse resp) {
    Date now = new Date();
    req.setAttribute("now", now);
    resp.setDateHeader("Date", now.getTime());
}

From source file:net.bafeimao.umbrella.web.controller.CaptchaController.java

@RequestMapping("")
public ModelAndView handleRequest(HttpServletRequest request, HttpServletResponse response) throws Exception {
    response.setDateHeader("Expires", 0);
    // Set standard HTTP/1.1 no-cache headers.
    response.setHeader("Cache-Control", "no-store, no-cache, must-revalidate");
    // Set IE extended HTTP/1.1 no-cache headers (use addHeader).
    response.addHeader("Cache-Control", "post-check=0, pre-check=0");
    // Set standard HTTP/1.0 no-cache header.
    response.setHeader("Pragma", "no-cache");
    // return a jpeg
    response.setContentType("image/jpeg");
    // create the text for the image
    String capText = captchaProducer.createText();
    // store the text in the session
    request.getSession().setAttribute(Constants.KAPTCHA_SESSION_KEY, capText);
    // create the image with the text
    BufferedImage bi = captchaProducer.createImage(capText);
    ServletOutputStream out = response.getOutputStream();
    // write the data out
    ImageIO.write(bi, "jpg", out);

    try {/* w  ww.j  a  v  a  2 s  .  c  o  m*/
        out.flush();
    } finally {
        out.close();
    }

    return null;
}

From source file:org.openmrs.module.metadatasharing.web.view.JsonView.java

/**
 * @see org.springframework.web.servlet.view.AbstractView#renderMergedOutputModel(java.util.Map,
 *      javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)
 *//*from  w  w  w .j  a v  a  2s.  co  m*/
@Override
protected void renderMergedOutputModel(@SuppressWarnings("rawtypes") Map model, HttpServletRequest request,
        HttpServletResponse response) throws Exception {
    response.setHeader("Pragma", "No-cache");
    response.setDateHeader("Expires", 0);
    response.setHeader("Cache-Control", "no-cache");
    response.setContentType("application/json");
    PrintWriter writer = response.getWriter();
    writer.write(serializer.serialize(getObjectToSerialize(model, request, response)));
}

From source file:org.openmrs.module.metadatasharing.web.view.XmlView.java

/**
 * @see org.springframework.web.servlet.view.AbstractView#renderMergedOutputModel(java.util.Map,
 *      javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)
 *//*w  ww .  j a  v a  2  s. co  m*/
@Override
protected void renderMergedOutputModel(@SuppressWarnings("rawtypes") Map model, HttpServletRequest request,
        HttpServletResponse response) throws Exception {
    response.setHeader("Pragma", "No-cache");
    response.setDateHeader("Expires", 0);
    response.setHeader("Cache-Control", "no-cache");
    response.setContentType("application/xml");
    PrintWriter writer = response.getWriter();
    writer.write(serializer.serialize(getObjectToSerialize(model, request, response)));
}