Example usage for javax.servlet.http HttpServletResponse flushBuffer

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

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Introduction

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

Prototype

public void flushBuffer() throws IOException;

Source Link

Document

Forces any content in the buffer to be written to the client.

Usage

From source file:com.cognifide.aet.rest.LockServlet.java

@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
    if (LOGGER.isDebugEnabled()) {
        LOGGER.debug("POST: " + req.toString());
    }//w ww.  jav a  2s . c  o m
    resp.setContentType(APPLICATION_JSON_CONTENT_TYPE);
    String value = req.getParameter(VALUE_PARAM);
    String key = getKey(req);
    if (StringUtils.isBlank(key) || StringUtils.isBlank(value)) {
        resp.setStatus(404);
    } else if (lockService.trySetLock(key, value)) {
        resp.setStatus(200);
    } else {
        resp.setStatus(409);
    }
    resp.flushBuffer();
}

From source file:server.UpgradeController.java

@RequestMapping("/getupgradefile")
public String getUpgradeFile(@RequestParam(value = "licensekey") String licensekey,
        @RequestParam(value = "url") String url, @RequestParam(value = "version") String version,
        HttpServletResponse response) {
    try {/*from  w w w  .ja va2  s .  c  o  m*/

        License license = new License(counter.incrementAndGet(), licensekey, url, version,
                new java.sql.Date(Calendar.getInstance().getTime().getTime()));

        if (license.isCurrent() && license.isValid()) {
            // get your file as InputStream
            InputStream is = new FileInputStream(new File("upgrades/latest.zip"));

            response.addHeader("Content-disposition", "attachment;filename=latest.zip");
            response.setContentType("txt/plain");

            IOUtils.copy(is, response.getOutputStream());

            response.flushBuffer();

            return "License successfully validated.";

        } else {
            return "License validation unsuccessful. Unable to download upgrade files";
        }

    } catch (Exception e) {
        System.out.println(e);
        return "License validation unsuccessful. Unable to download upgrade files";
    }
}

From source file:waffle.spring.NegotiateSecurityFilter.java

/**
 * Send a 401 Unauthorized along with protocol authentication headers.
 * /*from   ww  w.ja va  2  s .c  o  m*/
 * @param response
 *            HTTP Response
 * @param close
 *            Close connection.
 */
protected void sendUnauthorized(final HttpServletResponse response, final boolean close) {
    try {
        this.provider.sendUnauthorized(response);
        if (close) {
            response.setHeader("Connection", "close");
        } else {
            response.setHeader("Connection", "keep-alive");
        }
        response.sendError(HttpServletResponse.SC_UNAUTHORIZED);
        response.flushBuffer();
    } catch (final IOException e) {
        throw new RuntimeException(e);
    }
}

From source file:io.milton.servlet.SpringMiltonFilter.java

private void doMiltonProcessing(HttpServletRequest req, HttpServletResponse resp) throws IOException {
    try {/*from  w  ww .j a  va 2s.c om*/
        MiltonServlet.setThreadlocals(req, resp);
        Request request = new io.milton.servlet.ServletRequest(req, servletContext);
        Response response = new io.milton.servlet.ServletResponse(resp);
        httpManager.process(request, response);
    } finally {
        MiltonServlet.clearThreadlocals();
        //resp.getOutputStream().flush();
        resp.flushBuffer();
    }
}

From source file:org.openmrs.contrib.metadatarepository.webapp.controller.PackageFormController.java

@RequestMapping(value = "/packagedownload")
public void downloadPackage(@RequestParam(required = false) final Long id, HttpServletResponse response)
        throws IOException {
    MetadataPackage p = packageManager.loadPackage(id);

    response.setContentType("application/x-zip-compressed");
    response.setHeader("Content-disposition", "attatchment;filename=\"" + id + ".zip");
    IOUtils.copy(new ByteArrayInputStream(p.getFile()), response.getOutputStream());
    Long i = p.getDownloadCount();
    log.debug("download count:" + i);
    i = i + 1;/*  w  ww  .j  av a2  s  .  c  om*/
    p.setDownloadCount(i);
    log.debug("download count:" + p.getDownloadCount());
    packageManager.save(p);
    response.flushBuffer();

}

From source file:com.indoqa.httpproxy.HttpClientProxy.java

@SuppressWarnings("resource")
private void writeProxyResponse(HttpServletResponse response, HttpResponse proxyResponse) throws IOException {
    this.writeResponseStatus(response, proxyResponse);
    this.writeResponseHeaders(response, proxyResponse);

    HttpEntity entity = proxyResponse.getEntity();

    if (entity == null) {
        return;/*from  w w w.j  a  va2  s. c  o  m*/
    }

    InputStream responseBody = entity.getContent();
    ServletOutputStream outputStream = response.getOutputStream();

    this.writeResponseBody(responseBody, outputStream);

    response.flushBuffer();
}

From source file:org.eclipse.orion.server.authentication.form.servlets.LoginServlet.java

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

    if (req.getParameter("login") == null && FormAuthHelper.getAuthenticatedUser(req) != null) {
        FormAuthHelper.writeLoginResponse(FormAuthHelper.getAuthenticatedUser(req), resp);
        return;//from www  . j  ava 2  s.c  o  m
    }

    try {
        if (FormAuthHelper.performAuthentication(req, resp)) {
            if (req.getParameter("redirect") != null && !req.getParameter("redirect").equals("")) { //$NON-NLS-1$
                resp.sendRedirect(req.getParameter("redirect"));
            } else {
                resp.flushBuffer();
            }
        } else {
            // redirection from
            // FormAuthenticationService.setNotAuthenticated
            String versionString = req.getHeader("Orion-Version"); //$NON-NLS-1$
            Version version = versionString == null ? null : new Version(versionString);

            // TODO: This is a workaround for calls
            // that does not include the WebEclipse version header
            String xRequestedWith = req.getHeader("X-Requested-With"); //$NON-NLS-1$

            String invalidLoginError = "Invalid user or password";

            if (version == null && !"XMLHttpRequest".equals(xRequestedWith)) { //$NON-NLS-1$
                RequestDispatcher rd = req.getRequestDispatcher(
                        "/loginform?error=" + new String(Base64.encode(invalidLoginError.getBytes()))); //$NON-NLS-1$
                rd.include(req, resp);
            } else {
                PrintWriter writer = resp.getWriter();
                JSONObject jsonError = new JSONObject();
                try {
                    jsonError.put("error", invalidLoginError); //$NON-NLS-1$
                    writer.print(jsonError);
                    resp.setContentType("application/json"); //$NON-NLS-1$
                } catch (JSONException e) {/* ignore */
                }
                resp.setStatus(HttpServletResponse.SC_UNAUTHORIZED);
            }
            resp.flushBuffer();
        }
    } catch (UnsupportedUserStoreException e) {
        LogHelper.log(e);
        resp.sendError(HttpServletResponse.SC_UNAUTHORIZED, e.getMessage());
    }

}

From source file:org.josso.gateway.protocol.handler.NtlmProtocolHandler.java

private void startsNegotiation(HttpServletRequest request, HttpServletResponse response) throws IOException {
    response.setHeader("WWW-Authenticate", "NTLM");
    if (this.isOfferBasic(request))
        response.addHeader("WWW-Authenticate", "Basic realm=\"" + realm + "\"");
    response.setStatus(HttpServletResponse.SC_UNAUTHORIZED);
    response.setContentLength(0);/*  ww w .j  av a  2s .co  m*/
    response.flushBuffer();
}

From source file:org.apache.jetspeed.modules.actions.NTLMSessionValidator.java

/**
 * Extracts user name from http headers// w ww .  j  a  v a  2 s.c o m
 * 
 * @param data
 * @return
 * @exception Exception
 */
private String getRemoteUser(RunData data) throws Exception {
    HttpServletRequest request = data.getRequest();
    HttpServletResponse response = data.getResponse();

    if (data.getUser().hasLoggedIn() && request.getMethod().equalsIgnoreCase("get")) {
        return data.getUser().getUserName();
    }

    String auth = request.getHeader("Authorization");
    if (auth == null) {
        response.setStatus(HttpServletResponse.SC_UNAUTHORIZED);
        response.setHeader("WWW-Authenticate", "NTLM");
        response.flushBuffer();

        return null;
    }
    if (auth.startsWith("NTLM ")) {

        byte[] msg = Base64.decodeBase64(auth.substring(5).getBytes());
        int off = 0, length, offset;

        if (msg[8] == 1) {
            response.setHeader("WWW-Authenticate", encodedMsg1);
            response.setStatus(HttpServletResponse.SC_UNAUTHORIZED);

            return null;
        } else if (msg[8] == 3) {
            if (data.getUser().hasLoggedIn()) {
                return data.getUser().getUserName();
            }

            off = 30;

            // length = msg[off + 17] * 256 + msg[off + 16];
            // offset = msg[off + 19] * 256 + msg[off + 18];
            // String remoteHost = new String(msg, offset, length);

            // length = msg[off + 1] * 256 + msg[off];
            // offset = msg[off + 3] * 256 + msg[off + 2];
            // String domain = new String(msg, offset, length);

            length = msg[off + 9] * 256 + msg[off + 8];
            offset = msg[off + 11] * 256 + msg[off + 10];
            String username = new String(msg, offset, length);

            return username;
        }

    }

    return null;
}

From source file:com.unidev.polycms.hateoas.controller.StorageIndexController.java

@GetMapping(value = "/storage/{storage}/raw", produces = MediaType.APPLICATION_OCTET_STREAM_VALUE)
public void raw(@PathVariable("storage") String storage, HttpServletResponse response) {
    if (!polyCore.existTenant(storage)) {
        LOG.warn("Not found storage {}", storage);
        throw new StorageNotFoundException("Storage " + storage + " not found");
    }// w  w  w.  ja  va  2s.  c  o m
    FlatFileStorage flatFileStorage = polyCore.fetchFlatFileStorage(storage);
    if ("true".equals(flatFileStorage.metadata().fetch(ALLOW_STORAGE_TRANSFER_KEY, ""))) { //  storageTransferAllowed=true
        File sqliteFile = polyCore.fetchSqliteFile(storage);
        try {
            FileUtils.copyFile(sqliteFile, response.getOutputStream());
            response.flushBuffer();
        } catch (IOException e) {
            LOG.error("Failed to send raw storage", e);
            throw new StorageTransferException("Failed to transfer storage " + storage);
        }
    } else {
    }
}