Example usage for javax.servlet.http HttpServletResponse 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.xwiki.webjars.internal.WebJarsResourceReferenceHandler.java

/**
 * Sets the response headers needed to cache the resource permanently, if the resource is static.
 * /*www  .  j a v a 2s  .c  o  m*/
 * @param response the response
 * @param resourceReference the resource that is being served
 */
private void setResponseHeaders(Response response, WebJarsResourceReference resourceReference) {
    // If the resource contains Velocity code then this code must be evaluated on each request and so the resource
    // must not be cached. Otherwise, if the resource is static we can cache it permanently because the resource
    // version is included in the URL.
    if (response instanceof ServletResponse && !shouldEvaluateResource(resourceReference)) {
        HttpServletResponse httpResponse = ((ServletResponse) response).getHttpServletResponse();
        httpResponse.setHeader(HttpHeaders.CACHE_CONTROL, "public");
        httpResponse.setDateHeader(HttpHeaders.EXPIRES, new Date().getTime() + CACHE_DURATION);
        // Even if the resource is cached permanently, most browsers are still sending a request if the user reloads
        // the page using F5. We send back the "Last-Modified" header in the response so that the browser will send
        // us an "If-Modified-Since" request for any subsequent call for this static resource. When this happens we
        // return a 304 to tell the browser to use its cached version.
        httpResponse.setDateHeader(HttpHeaders.LAST_MODIFIED, new Date().getTime());
    }
}

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From source file:ee.pri.rl.blog.web.servlet.FileDownloadServlet.java

private void sendFile(String path, String calculatedTag, File directory, HttpServletResponse resp) {
    File file = new File(directory, path);

    String mimeType = getServletContext().getMimeType(path);
    if (mimeType == null) {
        mimeType = "application/octet-stream";
    }//from   w  w  w.ja  v a2s.co  m

    resp.setHeader("ETag", calculatedTag);
    resp.setDateHeader("Date", System.currentTimeMillis());
    resp.setContentType(mimeType);
    resp.setContentLength((int) file.length());
    long liveTime = 3600 * 24 * 30;
    resp.setDateHeader("Expires", System.currentTimeMillis() + liveTime * 1000);
    resp.setHeader("Cache-Control", "public, max-age=" + liveTime);

    try {
        DataInputStream input = new DataInputStream(new FileInputStream(file));
        try {
            IOUtils.copy(input, resp.getOutputStream());
            resp.getOutputStream().flush();
            resp.getOutputStream().close();
        } catch (IOException e) {
            log.warn("Sending " + file + " failed", e);
            resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
        }
        if (input != null) {
            input.close();
        }
    } catch (IOException e) {
        log.warn("Sending " + file + " failed", e);
        try {
            resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
        } catch (IOException e1) {
            log.warn("Sending response for " + file + " failed");
        }
    }
}

---

From source file:org.sakaiproject.nakamura.files.pool.StreamHelper.java

/**
 * @param resource/*  w w  w.j  av a2  s  . com*/
 * @param request
 * @param response
 * @param servletContext 
 * @throws RepositoryException
 */
private void setHeaders(Map<String, Object> properties, Resource resource, HttpServletResponse response,
        String alternativeStream, ServletContext servletContext) {

    long modifTime = StorageClientUtils.toLong(
            properties.get(StorageClientUtils.getAltField(Content.LASTMODIFIED_FIELD, alternativeStream)));
    if (modifTime > 0) {
        response.setDateHeader(HEADER_LAST_MODIFIED, modifTime);
    }

    String contentType = (String) properties
            .get(StorageClientUtils.getAltField(Content.MIMETYPE_FIELD, alternativeStream));
    if (contentType == null && servletContext != null) {
        final String ct = servletContext.getMimeType(resource.getPath());
        if (ct != null) {
            contentType = ct;
        }
    }
    if (contentType != null) {
        response.setContentType(contentType);
    }

    String encoding = (String) properties
            .get(StorageClientUtils.getAltField(Content.ENCODING_FIELD, alternativeStream));
    if (encoding != null) {
        response.setCharacterEncoding(encoding);
    }
}

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From source file:com.impala.paga.all.QueryBalance.java

/**
 * /* w  w  w .jav a  2s  .  com*/
 * @param request
 * @param response
 * @throws ServletException
 *             , IOException
 */
@Override
public void doPost(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    OutputStream out = response.getOutputStream();

    response.setContentType("text/plain;charset=UTF-8");
    response.setDateHeader("Expires", new Date().getTime()); // Expiration
    // date
    response.setDateHeader("Date", new Date().getTime()); // Date and time
    try {
        // that the
        // message was
        // sent
        out.write(moneytransfer(request).getBytes());
    } catch (JSONException ex) {
        Logger.getLogger(QueryBalance.class.getName()).log(Level.SEVERE, null, ex);
    } catch (NoSuchAlgorithmException ex) {
        Logger.getLogger(QueryBalance.class.getName()).log(Level.SEVERE, null, ex);
    }
    out.flush();
    out.close();
}

---

From source file:net.unicon.academus.apps.sso.SsoCallbackServlet.java

public void doGet(HttpServletRequest req, HttpServletResponse res) {

    try {/*from ww  w. j  av  a 2  s  . c o  m*/
        res.setHeader("pragma", "no-cache");
        res.setHeader("Cache-Control",
                "no-store, no-cache, max-age=0, must-revalidate, post-check=0, pre-check=0");
        res.setDateHeader("Expires", 0);

        Map cache = TimedCache.getCache("ssoAuthentication");

        if (log.isDebugEnabled()) {
            log.debug("SsoCallbackServlet uri: " + req.getRequestURI() + "?" + req.getQueryString());
        }

        HttpSession session = req.getSession(false);

        if (session == null) {
            returnErrorResponse(res, buildRedirectAttribute(req));
            return;
        }

        IUserInstance userInstance = UserInstanceManager.getUserInstance(req);
        String gatewayUserContextKey = req.getParameter("gatewayUserContextKey");
        if (gatewayUserContextKey == null) {
            returnErrorResponse(res);
            return;
        }

        String[] split = gatewayUserContextKey.split("/");
        String username = split[0];

        String sessionUsername = (String) userInstance.getPerson().getAttribute(IPerson.USERNAME);
        if (!username.equals(sessionUsername)) {
            log.warn("SsoCallbackServlet user not authoriated: " + sessionUsername + ", " + username);
            returnErrorResponse(res);
            return;
        }

        if (log.isDebugEnabled()) {
            log.debug("SsoCallbackServlet lookup name: " + gatewayUserContextKey);
        }

        SsoEvaluator evaluator = (SsoEvaluator) session.getAttribute(gatewayUserContextKey);
        if (evaluator == null) {
            evaluator = (SsoEvaluator) cache.get(gatewayUserContextKey);
            if (evaluator != null) {
                session.setAttribute(gatewayUserContextKey, evaluator);
                cache.remove(gatewayUserContextKey);
            }
        }

        if (evaluator == null) {
            returnErrorResponse(res);
            return;
        }

        String entries = evaluator.evaluateAllEntries(true);

        if (log.isDebugEnabled()) {
            log.debug("SsoCallbackServlet retrieving id/userContext: " + gatewayUserContextKey + "/" + entries);
        }

        if (entries == null) {
            returnErrorResponse(res);
            return;
        }

        res.getWriter().print(entries);
    } catch (Exception e) {
        log.error("Exception producing callback response.", e);
        try {
            returnErrorResponse(res);
        } catch (IOException ioe) {
            log.error("Exception returning error response.", e);
        }
    }
}

---

From source file:com.impala.paga.all.BankRouteRemit1.java

/**
 * /* w  w  w .  j av  a  2 s  . c om*/
 * @param request
 * @param response
 * @throws ServletException
 *             , IOException
 */
@Override
public void doPost(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    OutputStream out = response.getOutputStream();

    response.setContentType("text/plain;charset=UTF-8");
    response.setDateHeader("Expires", new Date().getTime()); // Expiration
    // date
    response.setDateHeader("Date", new Date().getTime()); // Date and time
    try {
        // that the
        // message was
        // sent
        out.write(moneytransfer(request).getBytes());
    } catch (JSONException ex) {
        Logger.getLogger(BankRouteRemit1.class.getName()).log(Level.SEVERE, null, ex);
    } catch (NoSuchAlgorithmException ex) {
        Logger.getLogger(BankRouteRemit1.class.getName()).log(Level.SEVERE, null, ex);
    }
    out.flush();
    out.close();
}

---

From source file:de.betterform.agent.web.resources.ResourceServlet.java

/**
 * set the caching headers for the resource response. Caching can be disabled by adding and init-param
 * of 'caching' with value 'false' to web.xml
 *
 * @param request  the http servlet request
 * @param response the http servlet response
 *//*  w w w.  j  a v  a2 s  . c  o  m*/
protected void setCaching(HttpServletRequest request, HttpServletResponse response) {
    long now = System.currentTimeMillis();
    if (caching) {
        response.setHeader("Cache-Control", "max-age=3600, public");
        response.setDateHeader("Date", now);
        response.setDateHeader("Expires", now + this.oneYear);
        response.setDateHeader("Last-Modified", this.getLastModifiedValue());
    } else {
        // Set to expire far in the past.
        response.setHeader("Expires", "Sat, 6 May 1995 12:00:00 GMT");
        // 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");
    }
}

---

From source file:org.apache.struts2.rest.RestActionInvocation.java

private void disableCatching(HttpServletResponse response) {
    // No cache/*from ww  w  . ja  va  2  s.  co m*/
    response.setHeader("Cache-Control", "no-cache");
    response.setDateHeader("Last-Modified", 0);
    response.setHeader("ETag", "-1");
}

---

From source file:io.lightlink.servlet.JsMethodsDefinitionServlet.java

@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {

    resp.setContentType("application/javascript");
    resp.setHeader("Cache-Control", "private, no-store, no-cache, must-revalidate");
    resp.setHeader("Pragma", "no-cache");
    resp.setDateHeader("Expires", 0);

    Cookie[] cookies = req.getCookies();
    String debugMethods = "";
    for (int i = 0; cookies != null && i < cookies.length; i++) {
        Cookie cookie = cookies[i];//from w  ww  .  ja  v  a2s . c o  m
        if ("lightlink.debug".equalsIgnoreCase(cookie.getName()))
            debugMethods = cookie.getValue();
    }

    PrintWriter writer = resp.getWriter();
    writer.print(getDeclarationScript(debugMethods, req));

    if (StringUtils.isNotEmpty(debugMethods) && ConfigManager.isInDebugMode()) {
        writer.print("\n// DEBUG PART \n");
        writer.print("\n\n    /***** io/lightlink/core/sqlFunctions.js   - for debugging *****/\n");
        writer.print(Utils.getResourceContent("io/lightlink/core/sqlFunctions.js"));
        writer.print("\n\n    /***** io/lightlink/core/debugProxy.js - for debugging *****/\n");
        writer.print(Utils.getResourceContent("io/lightlink/core/debugProxy.js"));
        writer.print("\n\n    /***** io/lightlink/core/LightLinkDebugSession.js - for debugging *****/\n");
        writer.print(Utils.getResourceContent("io/lightlink/core/LightLinkDebugSession.js"));
    }

    if (ConfigManager.isInDebugMode()) {
        writer.print("\n\n    /***** io/lightlink/core/IDDQD.js - for debugging *****/\n");
        writer.print(Utils.getResourceContent("io/lightlink/core/IDDQD.js"));
    }

    writer.print("\n" + "LL.JsApi.CSRF_Token = '"
            + CSRFTokensContainer.getInstance(req.getSession()).createNewToken() + "'\n");

    writer.close();
    resp.flushBuffer();
}

---

From source file:com.impala.paga.all.RouteRemit1.java

/**
 * // w ww  .j  a  v a 2 s  .c o  m
 * @param request
 * @param response
 * @throws ServletException
 *             , IOException
 */
@Override
public void doPost(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    OutputStream out = response.getOutputStream();

    response.setContentType("text/plain;charset=UTF-8");
    response.setDateHeader("Expires", new Date().getTime()); // Expiration
    // date
    response.setDateHeader("Date", new Date().getTime()); // Date and time
    try {
        // that the
        // message was
        // sent
        out.write(moneytransfer(request).getBytes());
    } catch (JSONException ex) {
        Logger.getLogger(RouteRemit1.class.getName()).log(Level.SEVERE, null, ex);
    } catch (NoSuchAlgorithmException ex) {
        Logger.getLogger(RouteRemit1.class.getName()).log(Level.SEVERE, null, ex);
    }
    out.flush();
    out.close();
}

---

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