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:nl.strohalm.cyclos.controls.customization.documents.ViewDocumentAction.java

@Override
protected ActionForward executeAction(final ActionContext context) throws Exception {
    final PreviewDocumentForm form = context.getForm();
    final long documentId = form.getDocumentId();
    if (documentId < 1) {
        throw new ValidationException();
    }// www.  j  a v a 2 s  . com
    final StaticDocument document = (StaticDocument) documentService.load(documentId,
            StaticDocument.Relationships.BINARY_FILE);
    final BinaryFile binaryFile = document.getBinaryFile();
    final HttpServletResponse response = context.getResponse();
    responseHelper.setDownload(response, binaryFile.getName());
    response.setContentType(binaryFile.getContentType());
    response.setContentLength(binaryFile.getSize());
    response.setDateHeader("Last-Modified", binaryFile.getLastModified().getTimeInMillis());
    IOUtils.copy(binaryFile.getContents().getBinaryStream(), response.getOutputStream());
    response.flushBuffer();
    return null;
}

From source file:com.liangc.hq.base.web.AvailabilityBaseServlet.java

protected void sendIcon(HttpServletRequest request, HttpServletResponse response, String url)
        throws IOException {
    response.setStatus(HttpServletResponse.SC_OK);
    response.setContentType("image/gif");
    IconBytes icon = (IconBytes) iconData.get(url);
    response.setContentLength(icon.getLength());
    response.getOutputStream().write(icon.getBytes());
    response.flushBuffer();
}

From source file:nl.strohalm.cyclos.controls.BaseAjaxAction.java

@Override
protected final ActionForward executeAction(final ActionContext context) throws Exception {
    final HttpServletRequest request = context.getRequest();
    final HttpServletResponse response = context.getResponse();

    // Prepare the response headers
    final ContentType contentType = contentType();
    contentType.processResponse(response);
    responseHelper.setEncoding(response);
    responseHelper.setNoCache(response);

    // Render the response
    try {/*from  w ww  .j av  a  2s.  c om*/
        renderContent(context);
        response.flushBuffer();
    } catch (final Exception e) {
        if (CLIENT_ABORT_EXCEPTION != null && CLIENT_ABORT_EXCEPTION.isInstance(e)) {
            // Nothing to do - the client has just cancelled the connection
        } else {
            handleException(request, response, e);
        }
    }

    // The response is now complete - return null
    return null;
}

From source file:com.digitaslbi.helios.mock.service.controllers.FileListingController.java

@RequestMapping(value = "/file/{fileName}", method = RequestMethod.GET)
public void downloadFile(@PathVariable("fileName") String fileName, HttpServletResponse response) {
    System.out.println("Parameter->" + fileName);
    try {//from w  w w  . j a va2s  .  c  om
        File selectedFile = (File) files.get(fileName);

        if (selectedFile != null && selectedFile.isIsFile()) {
            InputStream inputStream = delegate.getS3Object(selectedFile.getFullPath());

            if (inputStream != null) {
                IOUtils.copy(inputStream, response.getOutputStream());

                response.flushBuffer();
            }
        }
    } catch (FileNotFoundException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }
}

From source file:org.bonitasoft.web.designer.controller.PreviewController.java

/**
 * Send redirect to the Rest API/* w w  w  .j  a v a2  s . co  m*/
 */
@RequestMapping("/preview/{artifact}/API/**")
public void proxyAPICall(HttpServletRequest request, HttpServletResponse response) throws ServletException {

    try {
        String queryString = isEmpty(request.getQueryString()) ? "" : "?" + request.getQueryString();
        response.setStatus(HttpServletResponse.SC_TEMPORARY_REDIRECT);
        response.addHeader("Location",
                "/bonita/API/" + RequestMappingUtils.extractPathWithinPattern(request) + queryString);
        response.flushBuffer();
    } catch (IOException e) {
        String message = "Error while redirecting API call";
        logger.error(message, e);
        throw new ServletException(message, e);
    }
}

From source file:org.commonfarm.web.ECSideFilter.java

public void doAjaxFilter(HttpServletRequest request, HttpServletResponse response, FilterChain chain)
        throws IOException, ServletException {

    request.setCharacterEncoding("UTF-8");

    String easyListName = getEasyList(request);
    String easyDataAccessName = getEasyDataAccess(request);

    String findAjaxZoneAtClient = request.getParameter(TableConstants.AJAX_FINDZONE_CLIENT);
    if (findAjaxZoneAtClient != null
            && ("false".equalsIgnoreCase(findAjaxZoneAtClient) || "0".equals(findAjaxZoneAtClient))) {
        ECSideAjaxResponseWrapper bufferResponseWrapper = new ECSideAjaxResponseWrapper(response);
        try {/*  ww  w  .  j  a v  a  2 s . c  om*/

            String ectableId = request.getParameter(TableConstants.EXTREME_COMPONENTS_INSTANCE);
            if (easyListName != null) {
                easyDataAccessHandler.easyList(request, bufferResponseWrapper,
                        getEasyListModelBean(request, easyListName));
            } else if (easyDataAccessName != null) {
                String sqlName = getSqlName(request);
                easyDataAccessHandler.dataAccess(getDataAccessModelBean(request, easyDataAccessName), sqlName,
                        request, response);
            }
            chain.doFilter(request, bufferResponseWrapper);
            String zone = bufferResponseWrapper.findSubstring(ECSideUtils.getAjaxBegin(ectableId),
                    ECSideUtils.getAjaxEnd(ectableId));
            HttpServletResponse originalResponse = bufferResponseWrapper.getOriginalResponse();
            originalResponse.flushBuffer();
            originalResponse.getOutputStream().write(zone.getBytes("UTF-8"));
            originalResponse.flushBuffer();
            originalResponse.getOutputStream().close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    } else {
        if (easyListName != null) {
            easyDataAccessHandler.easyList(request, response, getEasyListModelBean(request, easyListName));
        } else if (easyDataAccessName != null) {
            String sqlName = getSqlName(request);
            easyDataAccessHandler.dataAccess(getDataAccessModelBean(request, easyDataAccessName), sqlName,
                    request, response);
        }
        chain.doFilter(request, response);
    }
}

From source file:de.itsvs.cwtrpc.security.AbstractRpcFailureHandler.java

protected void writeUnexpectedException(HttpServletRequest request, HttpServletResponse response,
        Throwable exception) throws IOException {
    if (CwtRpcUtils.getRpcSessionInvalidationPolicy(request).isInvalidateOnUnexpectedException()) {
        invalidateSession(request);//  ww  w . j  a  v  a  2 s .c o  m
    }

    response.reset();
    addNoCacheResponseHeaders(request, response);
    RPCServletUtils.writeResponseForUnexpectedFailure(getServletContext(), response, exception);
    response.flushBuffer();
}

From source file:javarestart.controllers.ApplicationController.java

@RequestMapping(value = "/{applicationName}", params = { "resource" }, method = RequestMethod.GET)
public void loadResource(@RequestParam(value = "resource") String resourceName,
        @PathVariable("applicationName") String applicationName, HttpServletResponse response)
        throws Exception {
    AppResourceProvider resourceProvider = getOrRegisterApp(applicationName);
    URLConnection resource = null;
    try {//w w w  .j a v a 2s.  c o  m
        resource = resourceProvider.load(resourceName);
        resource.connect();
        response.setContentLength(resource.getContentLength());
        IOUtils.copy(resource.getInputStream(), response.getOutputStream());
        response.flushBuffer();
        logger.info("Class or resource loaded: " + resourceName);
    } catch (ResourceNotFoundException e) {
        logger.warning(e.toString());
        response.sendError(404);
    }
}

From source file:org.magnum.dataup.controller.VideoSvc.java

/**
 * Get video stream data/*from w  w w .j a v a  2 s .  c o m*/
 * 
 * @param id
 *            Video identifier
 */
@RequestMapping(value = VideoSvcApi.VIDEO_DATA_PATH, method = RequestMethod.GET)
public void getData(@PathVariable Long id, HttpServletResponse response) {
    try {
        VideoFileManager fileManager = VideoFileManager.get();
        Video video = repository.findOne(id);
        if (fileManager.hasVideoData(video)) {
            response.setContentType("video/mp4");
            fileManager.copyVideoData(video, response.getOutputStream());
            response.setStatus(200);
            response.flushBuffer();
        } else {
            response.setStatus(404);
        }
    } catch (IOException e) {
        response.setStatus(404);
    }
}

From source file:org.fenixedu.academic.ui.struts.action.student.candidacy.FirstTimeEnrolmentDocuments.java

public ActionForward showSummaryFile(ActionMapping mapping, ActionForm actionForm, HttpServletRequest request,
        HttpServletResponse response) {
    CandidacySummaryFile file = ((StudentCandidacy) getDomainObject(request, "candidacyID")).getSummaryFile();

    response.reset();/*w w w.  j  av a  2s.c o  m*/
    try {
        response.getOutputStream().write(file.getContent());
        response.setContentLength(file.getContent().length);
        response.setContentType("application/pdf");
        response.flushBuffer();
    } catch (IOException e) {
        logger.error(e.getMessage(), e);
    }

    return null;
}