Example usage for javax.servlet.http HttpServletResponse flushBuffer

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.castlemock.web.basis.web.mvc.controller.project.ProjectsOverviewController.java

/**
 * The method provides the functionality to update, delete and export projects. It bases the requested functionality based
 * on the provided action./*from   w  w w .  j  ava  2s  . c  o  m*/
 * @param action The action is used to determined which action/functionality the perform.
 * @param projectModifierCommand The project overview command contains which ids going to be updated, deleted or exported.
 * @param response The HTTP servlet response
 * @return The model depending in which action was requested.
 */
@PreAuthorize("hasAuthority('READER') or hasAuthority('MODIFIER') or hasAuthority('ADMIN')")
@RequestMapping(method = RequestMethod.POST)
public ModelAndView projectFunctionality(@RequestParam String action,
        @ModelAttribute ProjectModifierCommand projectModifierCommand, HttpServletResponse response) {
    LOGGER.debug("Project action requested: " + action);
    if (EXPORT_PROJECTS.equalsIgnoreCase(action)) {
        if (projectModifierCommand.getProjects().length == 0) {
            return redirect();
        }

        ZipOutputStream zipOutputStream = null;
        InputStream inputStream = null;
        final String outputFilename = tempFilesFolder + SLASH + "exported-projects-" + new Date().getTime()
                + ".zip";
        try {
            zipOutputStream = new ZipOutputStream(new FileOutputStream(outputFilename));
            for (String project : projectModifierCommand.getProjects()) {
                final String[] projectData = project.split(SLASH);
                if (projectData.length != 2) {
                    continue;
                }

                final String projectTypeUrl = projectData[0];
                final String projectId = projectData[1];
                final String exportedProject = projectServiceFacade.exportProject(projectTypeUrl, projectId);
                final byte[] data = exportedProject.getBytes();
                final String filename = "exported-project-" + projectTypeUrl + "-" + projectId + ".xml";
                zipOutputStream.putNextEntry(new ZipEntry(filename));
                zipOutputStream.write(data, 0, data.length);
                zipOutputStream.closeEntry();
            }
            zipOutputStream.close();

            inputStream = new FileInputStream(outputFilename);
            IOUtils.copy(inputStream, response.getOutputStream());

            response.setContentType("application/zip");
            response.flushBuffer();
            return null;
        } catch (IOException exception) {
            LOGGER.error("Unable to export multiple projects and zip them", exception);
        } finally {
            if (zipOutputStream != null) {
                try {
                    zipOutputStream.close();
                } catch (IOException exception) {
                    LOGGER.error("Unable to close the zip output stream", exception);
                }
            }
            if (inputStream != null) {
                try {
                    inputStream.close();
                } catch (IOException exception) {
                    LOGGER.error("Unable to close the input stream", exception);
                }
            }
            fileManager.deleteUploadedFile(outputFilename);
        }
    } else if (DELETE_PROJECTS.equalsIgnoreCase(action)) {
        List<ProjectDto> projects = new LinkedList<ProjectDto>();
        for (String project : projectModifierCommand.getProjects()) {
            final String[] projectData = project.split(SLASH);

            if (projectData.length != 2) {
                continue;
            }

            final String projectTypeUrl = projectData[0];
            final String projectId = projectData[1];
            final ProjectDto projectDto = projectServiceFacade.findOne(projectTypeUrl, projectId);
            projects.add(projectDto);
        }
        ModelAndView model = createPartialModelAndView(DELETE_PROJECTS_PAGE);
        model.addObject(PROJECTS, projects);
        model.addObject(DELETE_PROJECTS_COMMAND, new DeleteProjectsCommand());
        return model;
    }

    return redirect();
}

---

From source file:org.dataconservancy.dcs.access.server.FileUploadServlet.java

private void uploadfile(String depositurl, String filename, InputStream is, HttpServletResponse resp)
        throws IOException {
    /*    File tmp = null;
        FileOutputStream fos = null;/*from  w  w  w. ja v a  2 s .  c om*/
        PostMethod post = null;
            
        //System.out.println(filename + " -> " + depositurl);
    */
    try {
        /*      tmp = File.createTempFile("fileupload", null);
              fos = new FileOutputStream(tmp);
              FileUtil.copy(is, fos);
                
             HttpClient client = new HttpClient();
                
              post = new PostMethod(depositurl);
                
              Part[] parts = {new FilePart(filename, tmp)};
                
             post.setRequestEntity(new MultipartRequestEntity(parts, post
            .getParams()));
            */
        org.apache.http.client.HttpClient client = new DefaultHttpClient();
        HttpPost post = new HttpPost(depositurl);

        InputStreamEntity data = new InputStreamEntity(is, -1);
        data.setContentType("binary/octet-stream");
        data.setChunked(false);
        post.setEntity(data);

        HttpResponse response = client.execute(post);
        System.out.println(response.toString());
        int status = 202;//response.getStatusLine();
        // int status = client.executeMethod(post);

        if (status == HttpStatus.SC_ACCEPTED || status == HttpStatus.SC_CREATED) {
            resp.setStatus(status);

            String src = response.getHeaders("X-dcs-src")[0].getValue();
            String atomurl = response.getHeaders("Location")[0].getValue();

            resp.setContentType("text/html");
            resp.getWriter().print("<html><body><p>^" + src + "^" + atomurl + "^</p></body></html>");
            resp.flushBuffer();
        } else {
            resp.sendError(status, response.getStatusLine().toString());
            return;
        }
    } finally {
        /* if (tmp != null) {
        tmp.delete();
         }
                 
         if (is != null) {
        is.close();
         }
                
         if (fos != null) {
        fos.close();
         }
                
         if (post != null) {
        post.releaseConnection();
         }*/
    }
}

---

From source file:com.surveypanel.form.FormHandler.java

public void handle(String target, HttpServletRequest request, HttpServletResponse response, int dispatch)
        throws IOException, ServletException {
    response.setContentType("text/html;charset=UTF-8");
    Map<String, String> values = new HashMap<String, String>();
    Map params = request.getParameterMap();
    try {/*w w  w .  ja  va  2  s . c o m*/
        for (Object key : params.keySet()) {
            Object object = params.get(key);
            if (object instanceof String) {
                values.put((String) key, (String) object);
            } else if (object.getClass().isArray()) {
                StringBuilder sb = new StringBuilder();
                String[] value = (String[]) object;
                for (String content : value) {
                    sb.append(content).append(",");
                }
                sb.deleteCharAt(sb.length() - 1);
                values.put((String) key, sb.toString());
            }
        }

    } catch (Exception e) {
        e.printStackTrace();
    }
    if (params.containsKey("quit")) {
        quit = true;
    }
    Form form = null;
    if (!values.containsKey("formId")) {
        form = formFactory.create(surveyId, devMode);
    } else {
        form = formFactory.load(values.get("formId"), surveyId, devMode);
    }
    form.setValues(values);
    form.setDevMode(devMode);
    Result execute;
    try {
        execute = (Result) jsManager.execute(form, "flow.execute(survey); save();");
        System.out.println(execute.getLogs());
        if (execute.hasError()) {
            response.getWriter().write(execute.getError());
        } else {
            response.getWriter().write(execute.getDisplay());
        }
    } catch (Exception e) {
        e.printStackTrace();
        response.getWriter().write(e.getMessage());
    }
    response.flushBuffer();
}

---

From source file:guru.nidi.raml.doc.servlet.MirrorServlet.java

@Override
protected void service(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException {
    final int delay = req.getParameter("delay") == null ? 0 : Integer.parseInt(req.getParameter("delay"));
    try {/*from ww w  .  j  a v  a  2  s.c o m*/
        Thread.sleep(delay);
    } catch (InterruptedException e) {
        //ignore
    }
    final String q = req.getParameter("q") == null ? "" : req.getParameter("q");
    if (q.equals("png")) {
        final ServletOutputStream out = res.getOutputStream();
        res.setContentType("image/png");
        copy(getClass().getClassLoader().getResourceAsStream("data/google.png"), out);
    } else {
        final PrintWriter out = res.getWriter();
        switch (q) {
        case "html":
            res.setContentType("text/html");
            out.print("<html><body><ul>");
            for (int i = 0; i < 50; i++) {
                out.println("<li>" + i + "</li>");
            }
            out.print("</ul></body></html>");
            break;
        case "json":
            res.setContentType("application/json");
            final ObjectMapper mapper = new ObjectMapper();
            final Map<String, Object> map = new HashMap<>();
            map.put("method", req.getMethod());
            map.put("url", req.getRequestURL().toString());
            map.put("headers", headers(req));
            map.put("query", query(req));
            mapper.writeValue(out, map);
            break;
        case "error":
            res.sendError(500, "Dummy error message");
            break;
        default:
            out.println(req.getMethod() + " " + req.getRequestURL());
            headers(req, out);
            query(req, out);
            copy(req.getReader(), out);
        }
    }
    res.flushBuffer();
}

---

From source file:org.apache.sling.reqanalyzer.impl.RequestAnalyzerWebConsole.java

@Override
protected void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
    if (req.getRequestURI().endsWith(RAW_FILE_MARKER) || req.getRequestURI().endsWith(ZIP_FILE_MARKER)) {

        InputStream input = null;
        OutputStream output = null;
        try {/*from w  ww.ja v a2s . c o  m*/
            input = new FileInputStream(this.logFile);
            output = resp.getOutputStream();

            if (req.getRequestURI().endsWith(ZIP_FILE_MARKER)) {
                ZipOutputStream zip = new ZipOutputStream(output);
                zip.setLevel(Deflater.BEST_SPEED);

                ZipEntry entry = new ZipEntry(this.logFile.getName());
                entry.setTime(this.logFile.lastModified());
                entry.setMethod(ZipEntry.DEFLATED);

                zip.putNextEntry(entry);

                output = zip;
                resp.setContentType("application/zip");
            } else {
                resp.setContentType("text/plain");
                resp.setCharacterEncoding("UTF-8");
                resp.setHeader("Content-Length", String.valueOf(this.logFile.length())); // might be bigger than
            }
            resp.setDateHeader("Last-Modified", this.logFile.lastModified());

            IOUtils.copy(input, output);
        } catch (IOException ioe) {
            throw new ServletException("Cannot create copy of log file", ioe);
        } finally {
            IOUtils.closeQuietly(input);

            if (output instanceof ZipOutputStream) {
                ((ZipOutputStream) output).closeEntry();
                ((ZipOutputStream) output).finish();
            }
        }

        resp.flushBuffer();

    } else if (req.getRequestURI().endsWith(WINDOW_MARKER)) {

        if (canOpenSwingGui(req)) {
            showWindow();
        }

        String target = req.getRequestURI();
        target = target.substring(0, target.length() - WINDOW_MARKER.length());
        resp.sendRedirect(target);
        resp.flushBuffer();

    } else {

        super.service(req, resp);

    }
}

---

From source file:org.apache.cxf.fediz.service.idp.kerberos.KerberosAuthenticationProcessingFilter.java

public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain)
        throws IOException, ServletException {
    HttpServletRequest request = (HttpServletRequest) req;
    HttpServletResponse response = (HttpServletResponse) res;
    if (skipIfAlreadyAuthenticated) {
        Authentication existingAuth = SecurityContextHolder.getContext().getAuthentication();
        if (existingAuth != null && existingAuth.isAuthenticated()
                && !(existingAuth instanceof AnonymousAuthenticationToken)) {
            chain.doFilter(request, response);
            return;
        }/*from   w  w w.j  a  va 2  s.  c om*/
    }
    String header = request.getHeader("Authorization");
    if ((header != null) && header.startsWith("Negotiate ")) {
        if (logger.isDebugEnabled()) {
            logger.debug("Received Negotiate Header for request " + request.getRequestURL() + ": " + header);
        }
        byte[] base64Token = header.substring(10).getBytes("UTF-8");
        byte[] kerberosTicket = Base64.decode(base64Token);
        KerberosServiceRequestToken authenticationRequest = new KerberosServiceRequestToken(kerberosTicket);
        authenticationRequest.setDetails(authenticationDetailsSource.buildDetails(request));
        Authentication authentication;
        try {
            authentication = authenticationManager.authenticate(authenticationRequest);
        } catch (AuthenticationException e) {
            //That shouldn't happen, as it is most likely a wrong
            //configuration on the server side
            logger.warn("Negotiate Header was invalid: " + header, e);
            SecurityContextHolder.clearContext();
            if (failureHandler != null) {
                failureHandler.onAuthenticationFailure(request, response, e);
            } else {
                response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
                response.flushBuffer();
            }
            return;
        }
        sessionStrategy.onAuthentication(authentication, request, response);
        SecurityContextHolder.getContext().setAuthentication(authentication);
        if (successHandler != null) {
            successHandler.onAuthenticationSuccess(request, response, authentication);
        }
    }
    chain.doFilter(request, response);
}

---

From source file:org.exist.http.urlrewrite.XQueryURLRewrite.java

private void flushError(HttpServletResponse response, HttpServletResponse wrappedResponse) throws IOException {
    if (!response.isCommitted()) {
        final byte[] data = ((CachingResponseWrapper) wrappedResponse).getData();
        if (data != null) {
            response.setContentType(wrappedResponse.getContentType());
            response.setCharacterEncoding(wrappedResponse.getCharacterEncoding());
            response.getOutputStream().write(data);
            response.flushBuffer();
        }//from www. jav  a  2s  . c  om
    }
}

---

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];//w ww. jav  a  2  s .com
        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:de.itsvs.cwtrpc.security.AbstractRpcFailureHandler.java

protected void writeExpectedException(HttpServletRequest request, HttpServletResponse response,
        Exception remoteException) throws IOException {
    final RPCRequest rpcRequest;
    final String responsePayload;

    rpcRequest = AbstractRpcAuthenticationProcessingFilter.getRpcRequest(request);
    try {//from  ww  w.  j  a v  a  2s .  co  m
        if (rpcRequest != null) {
            /* checked exceptions must be declared by service method */
            responsePayload = RPC.encodeResponseForFailure(rpcRequest.getMethod(), remoteException,
                    rpcRequest.getSerializationPolicy());
        } else {
            log.warn("Could not determine RPC request. Using default serialization.");
            responsePayload = RPC.encodeResponseForFailure(null, remoteException);
        }
    } catch (UnexpectedException e) {
        if (rpcRequest != null) {
            log.error("Exception " + remoteException.getClass().getName() + " is unexpected for method "
                    + rpcRequest.getMethod() + " of declaring class "
                    + rpcRequest.getMethod().getDeclaringClass().getName(), e);
        } else {
            log.error("Exception " + remoteException.getClass().getName() + " is unexpected for unknown method",
                    e);
        }
        writeUnexpectedException(request, response, remoteException);
        return;
    } catch (SerializationException e) {
        log.error("Error while serializing " + remoteException.getClass().getName(), e);
        writeUnexpectedException(request, response, remoteException);
        return;
    }

    if (CwtRpcUtils.getRpcSessionInvalidationPolicy(request).isInvalidateOnExpectedException()) {
        invalidateSession(request);
    }

    response.reset();
    addNoCacheResponseHeaders(request, response);
    RPCServletUtils.writeResponse(getServletContext(), response, responsePayload, false);
    response.flushBuffer();
}

---

From source file:ch.entwine.weblounge.kernel.site.SiteServlet.java

/**
 * Delegates to jasper servlet with a controlled context class loader.
 * /*from  w  w w. j  a v  a  2s .  com*/
 * @see JspServletWrapper#service(HttpServletRequest, HttpServletResponse)
 */
public void serviceJavaServerPage(final HttpServletRequest httpRequest, final HttpServletResponse httpResponse)
        throws ServletException, IOException {

    final HttpServletRequest request;
    final HttpServletResponse response;
    boolean originalRequest = true;

    // Wrap request and response if necessary
    if (httpRequest instanceof SiteRequestWrapper) {
        request = httpRequest;
        response = httpResponse;
        originalRequest = false;
    } else if (httpRequest instanceof WebloungeRequest) {
        request = new SiteRequestWrapper((WebloungeRequest) httpRequest, httpRequest.getPathInfo(), false);
        response = httpResponse;
        originalRequest = false;
    } else {
        WebloungeRequestImpl webloungeRequest = new WebloungeRequestImpl(httpRequest, environment);
        webloungeRequest.init(site);
        webloungeRequest.setUser(securityService.getUser());
        String requestPath = UrlUtils.concat("/site", httpRequest.getPathInfo());
        request = new SiteRequestWrapper(webloungeRequest, requestPath, false);
        response = new WebloungeResponseImpl(httpResponse);
        ((WebloungeResponseImpl) response).setRequest(webloungeRequest);
    }

    // Make sure the resource exists, Jasper will not produce a meaningful error
    // message, but a PWC6117: File "null" not found
    String requestPath = request.getRequestURI();
    if (bundle.getEntry(requestPath) == null) {
        response.sendError(HttpServletResponse.SC_NOT_FOUND);
        return;
    }

    // Configure request and response objects

    try {
        jasperServlet.service(request, response);
        if (originalRequest) {
            ((WebloungeResponseImpl) response).endResponse();
            response.flushBuffer();
        }
    } catch (ServletException e) {
        throw e;
    } catch (IOException e) {
        throw e;
    } catch (Throwable t) {
        // Don't log errors during precompilation
        if (!RequestUtils.isPrecompileRequest(request))
            logger.error("Error while serving jsp {}: {}", request.getRequestURI(), t.getMessage());
        response.sendError(SC_INTERNAL_SERVER_ERROR, t.getMessage());
    }
}

---

• «
• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• 11
• 12
• 13
• 14
• 15
• 16
• 17
• 18
• 19
• 20
• 21
• 22
• 23
• 24
• 25
• 26
• 27
• 28
• 29
• 30
• 31
• 32
• 33
• 34
• 35
• 36
• 37
• 38
• 39
• 40
• 41
• 42
• 43
• 44
• 45
• 46
• 47
• 48
• 49
• 50
• »