Example usage for javax.servlet ServletOutputStream flush

List of usage examples for javax.servlet ServletOutputStream flush

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Introduction

In this page you can find the example usage for javax.servlet ServletOutputStream flush.

Prototype

public void flush() throws IOException

Source Link

Document

Flushes this output stream and forces any buffered output bytes to be written out.

Usage

From source file:org.mxhero.engine.plugin.attachmentlink.fileserver.servlet.FileService.java

private void doAction(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
    ContentService service = null;//w w  w.  j  ava 2 s.c o  m
    InputStream in = null;
    Long idToSearch = null;
    String id = req.getParameter("id");
    String type = req.getParameter("type");
    String email = req.getParameter("email");
    MDC.put("message", id);
    try {
        if (StringUtils.isEmpty(id) || StringUtils.isEmpty(type)) {
            log.debug("Error. No params in URL present. Forwarding to error URL page");
            req.getRequestDispatcher("/errorParams.jsp").forward(req, resp);
        } else {
            ApplicationContext context = WebApplicationContextUtils
                    .getWebApplicationContext(getServletContext());
            StandardPBEStringEncryptor encryptor = (StandardPBEStringEncryptor) context.getBean("encryptor");
            String decrypt = encryptor.decrypt(id);
            idToSearch = Long.valueOf(decrypt);
            log.debug("Trying download to id " + idToSearch);
            service = context.getBean(ContentService.class);
            ContentDTO content = service.getContent(idToSearch, email);

            if (content.hasPublicUrl()) {
                service.successContent(idToSearch);
                resp.sendRedirect(content.getPublicUrl());
            } else {
                ServletOutputStream outputStream = resp.getOutputStream();
                resp.setContentLength(content.getLength());
                resp.setContentType(content.getContentType(type));
                if (!content.hasToBeOpen(type)) {
                    resp.setHeader("Content-Type", "application/octet-stream");
                    resp.addHeader("Content-Disposition",
                            "attachment; filename=\"" + content.getFileName() + "\"");
                } else {
                    resp.addHeader("Content-Disposition", "filename=\"" + content.getFileName() + "\"");
                }
                resp.addHeader("Cache-Control", "no-cache");

                in = content.getInputStream();
                int BUFF_SIZE = 2048;
                byte[] buffer = new byte[BUFF_SIZE];
                int byteCount = 0;
                while ((in != null) && (byteCount = in.read(buffer)) != -1) {
                    outputStream.write(buffer, 0, byteCount);
                }
                outputStream.flush();
                log.debug("Download completed successfuly");
                service.successContent(idToSearch);
            }
        }

    } catch (NotAllowedToSeeContentException e) {
        log.debug("User not more allowed to download content. Forwarding to not allowed page");
        req.getRequestDispatcher("/notAllowed.jsp").forward(req, resp);
    } catch (EmptyResultDataAccessException e) {
        log.debug("Content not more available. Forwarding to not available page");
        req.getRequestDispatcher("/contentNotAvailable.jsp").forward(req, resp);
    } catch (Exception e) {
        try {
            service.failDownload(idToSearch);
        } catch (Exception e2) {
        }
        log.error("Exception: " + e.getClass().getName());
        log.error("Message Exception: " + e.getMessage());
        log.debug("Error General. Forwarding to page error general");
        req.getRequestDispatcher("/error.jsp").forward(req, resp);
    } finally {
        if (in != null) {
            in.close();
        }
        MDC.put("message", id);
    }
}

From source file:org.openmrs.module.DeIdentifiedPatientDataExportModule.api.impl.DeIdentifiedExportServiceImpl.java

public void exportJson(HttpServletResponse response, String ids, Integer pid) {
    response.setContentType("application/octet-stream");
    response.setHeader("Content-Disposition", "attachment;filename=patientExportSummary.json");
    List<PersonAttributeType> pat = getSavedPersonAttributeList(pid);
    JSONObject obj = new JSONObject();
    JSONObject patientExportSummary = new JSONObject();
    JSONArray patients = new JSONArray();
    JSONObject patient = new JSONObject();
    List<Integer> idsList = multipleIds(ids);
    PatientService ps = Context.getPatientService();
    for (int j = 0; j < idsList.size(); j++) {
        Patient pt = ps.getPatient(idsList.get(j));
        Map patientDemographicData = new HashMap();
        for (int i = 0; i < pat.size(); i++) {
            PersonAttribute pa = pt.getAttribute(pat.get(i));
            if (pa != null)
                patientDemographicData.put(pat.get(i).getName(), pa.getValue());
        }/* ww  w. ja va  2s  .  c  o  m*/
        patientDemographicData.put("dob", pt.getBirthdate().toString());
        pt = setRandomPatientNames(pt);
        patientDemographicData.put("name", pt.getGivenName().toString() + " " + pt.getMiddleName().toString()
                + " " + pt.getFamilyName().toString());

        List<Obs> obs1 = new ArrayList<Obs>();
        Context.clearSession();
        ObsService obsService = Context.getObsService();
        List<Obs> ob = getOriginalObsList(pt, obsService);
        obs1 = getEncountersOfPatient(pt, ob, pid); //New obs list - updated
        List<ConceptSource> cs = getConceptMapping(obs1);
        for (int i = 0; i < obs1.size(); i++) {
            Map encounters = new HashMap();
            JSONArray en = new JSONArray();
            JSONObject enObj = new JSONObject();
            en.add(enObj);
            encounters.put("observations", en);
            JSONObject conceptObj = new JSONObject();
            JSONObject valueObj = new JSONObject();
            JSONObject vObj = new JSONObject();
            en.add(vObj);
            conceptObj.put("concept", enObj);
            valueObj.put("value", vObj);
            for (int k = 0; k < cs.size(); k++) {
                if (obs1.get(i).getValueCoded() != null) {
                    vObj.put("valueCoded", obs1.get(i).getValueCoded().toString());
                } else if (obs1.get(i).getValueBoolean() != null) {
                    vObj.put("valueCoded", obs1.get(i).getValueBoolean().toString());
                }
                enObj.put("conceptSourceId", cs.get(k).getHl7Code().toString());
                enObj.put("conceptSource", cs.get(k).getName().toString());
            }
            enObj.put("conceptID", obs1.get(i).getConcept().toString());
            encounters.put("encounterDate",
                    obs1.get(i).getEncounter().getEncounterDatetime().toLocaleString().toString());
            encounters.put("encounterLocation", obs1.get(i).getLocation().getAddress1().toString());
            patients.add(encounters);
        }
        patients.add(patientDemographicData);
    }
    patientExportSummary.put("patients", patients);
    obj.put("patientExportSummary", patientExportSummary);
    try {

        FileWriter file = new FileWriter("c:\\test1.json");
        file.write(obj.toJSONString());
        file.flush();
        file.close();
        File f = new File("c:\\test1.json");
        FileInputStream fileIn = new FileInputStream(f);
        ServletOutputStream out = response.getOutputStream();
        byte[] outputByte = new byte[4096];
        //copy binary contect to output stream
        while (fileIn.read(outputByte, 0, 4096) != -1) {
            out.write(outputByte, 0, 4096);
        }
        fileIn.close();
        out.flush();
        out.close();

    } catch (IOException e) {

        e.printStackTrace();
    }
}

From source file:com.jd.survey.web.settings.SurveyDefinitionController.java

/**
 * Returns the survey logo image binary  
 * @param departmentId/*from   w w  w  .j a  v  a2s .  c o m*/
 * @param uiModel
 * @param httpServletRequest
 * @return
 */
@Secured({ "ROLE_ADMIN", "ROLE_SURVEY_ADMIN" })
@RequestMapping(value = "/logo/{id}", produces = "text/html")
public void getSurveyLogo(@PathVariable("id") Long surveyDefinitionId, Model uiModel, Principal principal,
        HttpServletRequest httpServletRequest, HttpServletResponse response) {
    try {
        uiModel.asMap().clear();
        User user = userService.user_findByLogin(principal.getName());
        //Check if the user is authorized
        if (!securityService.userIsAuthorizedToManageSurvey(surveyDefinitionId, user)) {
            log.warn("Unauthorized access to url path " + httpServletRequest.getPathInfo()
                    + " attempted by user login:" + principal.getName() + "from IP:"
                    + httpServletRequest.getLocalAddr());
            throw (new RuntimeException("Unauthorized access to logo"));
        }
        SurveyDefinition surveyDefinition = surveySettingsService.surveyDefinition_findById(surveyDefinitionId);
        //response.setContentType("image/png");
        ServletOutputStream servletOutputStream = response.getOutputStream();
        servletOutputStream.write(surveyDefinition.getLogo());
        servletOutputStream.flush();
    } catch (Exception e) {
        log.error(e.getMessage(), e);
        throw (new RuntimeException(e));
    }
}

From source file:com.spring.tutorial.controllers.DefaultController.java

@RequestMapping(value = "/files/{id}", method = RequestMethod.GET)
public String getFile(@PathVariable("id") String id, ModelMap map, HttpServletRequest request,
        HttpServletResponse response) throws IOException, Exception {

    String _id = request.getSession().getAttribute("id").toString();
    MongoData data = new MongoData();
    GridFS collection = new GridFS(data.getDB(), _id + "_files");

    BasicDBObject query = new BasicDBObject();
    query.put("_id", new ObjectId(id));
    GridFSDBFile file = collection.findOne(query);

    DBCollection metaFileCollection = data.getDB().getCollection(_id + "_files_meta");
    BasicDBObject metaQuery = new BasicDBObject();
    metaQuery.put("file-id", new ObjectId(id));
    DBObject metaFileDoc = metaFileCollection.findOne(metaQuery);
    MongoFile metaFile = new MongoFile(metaFileDoc);

    ServletOutputStream out = response.getOutputStream();
    String mimeType = metaFile.getType();
    response.setContentType(mimeType);/*w  ww  . j  a  va 2 s  .c om*/
    response.setContentLength((int) file.getLength());
    String headerKey = "Content-Disposition";

    File f = File.createTempFile(file.getFilename(),
            metaFile.getType().substring(metaFile.getType().indexOf("/") + 1));
    String headerValue = String.format("attachment; filename=\"%s\"", file.getFilename());
    response.setHeader(headerKey, headerValue);
    file.writeTo(f);

    FileInputStream inputStream = new FileInputStream(f);
    byte[] buffer = new byte[4096];
    int bytesRead = -1;

    while (inputStream.read(buffer, 0, 4096) != -1) {
        out.write(buffer, 0, 4096);
    }
    inputStream.close();
    out.flush();
    out.close();

    return "mydrive/temp";
}

From source file:com.jd.survey.web.settings.SurveyDefinitionController.java

/**
 * Exports the survey definition as a JSON file
 * @param surveyDefinitionId//from   w  ww .j a va2s . co m
 * @param response
 */
@Secured({ "ROLE_ADMIN", "ROLE_SURVEY_ADMIN" })
@RequestMapping(value = "/{id}", params = "export", produces = "text/html")
public void exportToJson(@PathVariable("id") Long surveyDefinitionId, Principal principal,
        HttpServletRequest httpServletRequest, HttpServletResponse response) {
    try {
        String login = principal.getName();
        User user = userService.user_findByLogin(login);
        //Check if the user is authorized
        if (!securityService.userIsAuthorizedToManageSurvey(surveyDefinitionId, user)) {
            log.warn("Unauthorized access to url path " + httpServletRequest.getPathInfo()
                    + " attempted by user login:" + principal.getName() + "from IP:"
                    + httpServletRequest.getLocalAddr());
            response.sendRedirect("../../accessDenied");

        }

        SurveyDefinition surveyDefinition = surveySettingsService.surveyDefinition_findById(surveyDefinitionId);
        //set the exported survey definition status to Inactive
        surveyDefinition.setStatus(SurveyDefinitionStatus.I);

        String json = jsonHelperService.serializeSurveyDefinition(surveyDefinition);
        //response.setContentType("text/html; charset=utf-8");
        response.setContentType("application/octet-stream");
        // 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");
        response.setHeader("Content-Disposition", "inline;filename=surveyDef" + surveyDefinitionId + ".jsn");
        ServletOutputStream servletOutputStream = response.getOutputStream();
        servletOutputStream.write(json.getBytes("UTF-8"));
        servletOutputStream.flush();
        //Returning the original survey's status to Published.
        surveyDefinition.setStatus(SurveyDefinitionStatus.P);
    } catch (Exception e) {
        log.error(e.getMessage(), e);
        throw (new RuntimeException(e));
    }
}

From source file:org.oscarehr.fax.admin.ManageFaxes.java

public ActionForward viewFax(ActionMapping mapping, ActionForm form, HttpServletRequest request,
        HttpServletResponse response) {/*from w  ww  .j  a  va2 s  .c o  m*/

    if (!securityInfoManager.hasPrivilege(LoggedInInfo.getLoggedInInfoFromSession(request), "_edoc", "r",
            null)) {
        throw new SecurityException("missing required security object (_edoc)");
    }

    try {
        String doc_no = request.getParameter("jobId");
        String pageNum = request.getParameter("curPage");
        if (pageNum == null) {
            pageNum = "0";
        }
        Integer pn = Integer.parseInt(pageNum);
        log.debug("Document No :" + doc_no);
        LogAction.addLog((String) request.getSession().getAttribute("user"), LogConst.READ,
                LogConst.CON_DOCUMENT, doc_no, request.getRemoteAddr());

        FaxJobDao faxJobDao = SpringUtils.getBean(FaxJobDao.class);
        FaxJob faxJob = faxJobDao.find(Integer.parseInt(doc_no));

        int index;
        String filename;
        if ((index = faxJob.getFile_name().lastIndexOf("/")) > -1) {
            filename = faxJob.getFile_name().substring(index + 1);
        } else {
            filename = faxJob.getFile_name();
        }

        String name = filename + "_" + pn + ".png";
        log.debug("name " + name);

        File outfile = null;

        outfile = hasCacheVersion2(faxJob, pn);
        if (outfile != null) {
            log.debug("got doc from local cache   ");
        } else {
            outfile = createCacheVersion2(faxJob, pn);
            if (outfile != null) {
                log.debug("create new doc  ");
            }
        }
        response.setContentType("image/png");
        ServletOutputStream outs = response.getOutputStream();
        response.setHeader("Content-Disposition", "attachment;filename=" + name);

        BufferedInputStream bfis = null;
        try {
            if (outfile != null) {
                bfis = new BufferedInputStream(new FileInputStream(outfile));
                int data;
                while ((data = bfis.read()) != -1) {
                    outs.write(data);
                    // outs.flush();
                }
            } else {
                log.info("Unable to retrieve content for " + faxJob
                        + ". This may indicate previous upload or save errors...");
            }
        } finally {
            if (bfis != null) {
                bfis.close();
            }
        }

        outs.flush();
        outs.close();
    } catch (java.net.SocketException se) {
        MiscUtils.getLogger().error("Error", se);
    } catch (Exception e) {
        MiscUtils.getLogger().error("Error", e);
    }
    return null;

}

From source file:org.itracker.web.actions.report.DisplayReportAction.java

/**
 *
 *///w w w. ja  v a  2 s .  c o m
public static void outputReport(List<Issue> reportDataArray, Project project, Report report, Locale userLocale,
        String reportOutput, HttpServletResponse response) throws ReportException {

    try {
        // hack, we have to find a more structured way to support
        // various types of queries
        final JRBeanCollectionDataSource beanCollectionDataSource = new JRBeanCollectionDataSource(
                reportDataArray);

        final Map<String, Object> parameters = new HashMap<String, Object>();
        String reportTitle = report.getName();
        if (project != null) {
            reportTitle += " - " + project.getName();
            if (report.getNameKey() != null) {
                reportTitle = ITrackerResources.getString(report.getNameKey(), project.getName());
            }
        } else if (report.getNameKey() != null) {
            reportTitle = ITrackerResources.getString(report.getNameKey());
        }
        parameters.put("ReportTitle", reportTitle);
        parameters.put("BaseDir", new File("."));
        parameters.put("REPORT_LOCALE", userLocale);
        parameters.put("REPORT_RESOURCE_BUNDLE", ITrackerResourceBundle.getBundle(userLocale));

        final JasperPrint jasperPrint = generateReport(report, parameters, beanCollectionDataSource);

        final ServletOutputStream out = response.getOutputStream();
        final JRExporter x;
        if (ReportUtilities.REPORT_OUTPUT_PDF.equals(reportOutput)) {

            response.setHeader("Content-Type", "application/pdf");
            response.setHeader("Content-Disposition", "attachment; filename=\"" + report.getName()
                    + new SimpleDateFormat("-yyyy-MM-dd").format(new Date()) + ".pdf\"");
            x = new JRPdfExporter();

        } else if (ReportUtilities.REPORT_OUTPUT_XLS.equals(reportOutput)) {
            response.setHeader("Content-Type", "application/xls");
            response.setHeader("Content-Disposition", "attachment; filename=\"" + report.getName()
                    + new SimpleDateFormat("-yyyy-MM-dd").format(new Date()) + ".xls\"");
            x = new JRXlsExporter();

        } else if (ReportUtilities.REPORT_OUTPUT_CSV.equals(reportOutput)) {

            response.setHeader("Content-Type", "text/csv");
            response.setHeader("Content-Disposition", "attachment; filename=\"" + report.getName()
                    + new SimpleDateFormat("-yyyy-MM-dd").format(new Date()) + ".csv\"");
            x = new JRCsvExporter();

        } else if (ReportUtilities.REPORT_OUTPUT_HTML.equals(reportOutput)) {
            response.setHeader("Content-Type", "text/html");
            response.setHeader("Content-Disposition", "attachment; filename=\"" + report.getName()
                    + new SimpleDateFormat("-yyyy-MM-dd").format(new Date()) + ".html\"");
            x = new JRHtmlExporter();

        } else {
            log.error("Invalid report output format: " + reportOutput);
            throw new ReportException("Invalid report type.", "itracker.web.error.invalidreportoutput");
        }
        x.setParameter(JRExporterParameter.JASPER_PRINT, jasperPrint);
        x.setParameter(JRExporterParameter.OUTPUT_STREAM, out);

        x.exportReport();

        out.flush();
        out.close();
    } catch (JRException e) {
        throw new ReportException(e);
    } catch (IOException e) {
        throw new ReportException(e);
    }

}

From source file:net.sourceforge.fenixedu.presentationTier.Action.publico.candidacies.erasmus.ErasmusIndividualCandidacyProcessPublicDA.java

public ActionForward retrieveLearningAgreement(ActionMapping mapping, ActionForm form,
        HttpServletRequest request, HttpServletResponse response) throws Exception {
    MobilityIndividualApplicationProcess process = (MobilityIndividualApplicationProcess) getProcess(request);

    final LearningAgreementDocument document = new LearningAgreementDocument(process);
    byte[] data = ReportsUtils.exportMultipleToPdfAsByteArray(document);

    response.setContentLength(data.length);
    response.setContentType("application/pdf");
    response.addHeader("Content-Disposition", "attachment; filename=" + document.getReportFileName() + ".pdf");

    final ServletOutputStream writer = response.getOutputStream();
    writer.write(data);/*from   w w w.ja  va  2s. c o m*/
    writer.flush();
    writer.close();

    response.flushBuffer();
    return mapping.findForward("");
}

From source file:org.red5.stream.http.servlet.TransportSegmentFeeder.java

/**
 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse
 *      response)/*www  .  j a  v  a2 s  .  c o  m*/
 */
protected void doPost(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    log.debug("Segment feed requested");
    // get red5 context and segmenter
    if (service == null) {
        ApplicationContext appCtx = (ApplicationContext) getServletContext()
                .getAttribute(WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE);
        service = (SegmenterService) appCtx.getBean("segmenter.service");
    }
    // get the requested stream / segment
    String servletPath = request.getServletPath();
    String streamName = servletPath.split("\\.")[0];
    log.debug("Stream name: {}", streamName);
    if (service.isAvailable(streamName)) {
        response.setContentType("video/MP2T");
        // data segment
        Segment segment = null;
        // setup buffers and output stream
        byte[] buf = new byte[188];
        ByteBuffer buffer = ByteBuffer.allocate(188);
        ServletOutputStream sos = response.getOutputStream();
        // loop segments
        while ((segment = service.getSegment(streamName)) != null) {
            do {
                buffer = segment.read(buffer);
                // log.trace("Limit - position: {}", (buffer.limit() - buffer.position()));
                if ((buffer.limit() - buffer.position()) == 188) {
                    buffer.get(buf);
                    // write down the output stream
                    sos.write(buf);
                } else {
                    log.info("Segment result has indicated a problem");
                    // verifies the currently requested stream segment
                    // number against the currently active segment
                    if (service.getSegment(streamName) == null) {
                        log.debug("Requested segment is no longer available");
                        break;
                    }
                }
                buffer.clear();
            } while (segment.hasMoreData());
            log.trace("Segment {} had no more data", segment.getIndex());
            // flush
            sos.flush();
            // segment had no more data
            segment.cleanupThreadLocal();
        }
        buffer.clear();
        buffer = null;
    } else {
        // let requester know that stream segment is not available
        response.sendError(404, "Requested segmented stream not found");
    }
}

From source file:org.kuali.kra.coi.disclosure.CoiDisclosureAction.java

/**
 * /*w w w  .  j  a v  a 2s .c  om*/
 * This method is for use with a JSON/AJAX call and should not be used as a post method
 * 
 */
public ActionForward getDisclosureEventTypeInfo(ActionMapping mapping, ActionForm form,
        HttpServletRequest request, HttpServletResponse response) throws Exception {

    String eventType = request.getParameter("eventType");
    Map<String, Object> fieldValues = new HashMap<String, Object>();
    fieldValues.put("eventTypeCode", eventType);

    List<CoiDisclosureEventType> disclosureEventTypes = (List<CoiDisclosureEventType>) getBusinessObjectService()
            .findMatching(CoiDisclosureEventType.class, fieldValues);
    StringWriter writer = new StringWriter();
    if (!CollectionUtils.isEmpty(disclosureEventTypes)) {
        CoiDisclosureEventType disclosureEventType = disclosureEventTypes.get(0);
        CoiDisclosureEventTypeAjaxBean disclosureEventTypeAjaxBean = new CoiDisclosureEventTypeAjaxBean();
        disclosureEventTypeAjaxBean.setDisclosureEventType(disclosureEventType);

        //Special code to handle select box
        if (disclosureEventType.isUseSelectBox1()) {
            try {
                String valuesFinder = disclosureEventType.getSelectBox1ValuesFinder();
                if (StringUtils.isNotBlank(valuesFinder)) {
                    Class valuesFinderClass = Class.forName(valuesFinder);
                    KeyValuesFinder keyValuesFinder = (KeyValuesFinder) valuesFinderClass.newInstance();
                    List<KeyValue> keyValues = keyValuesFinder.getKeyValues();
                    if (!CollectionUtils.isEmpty(keyValues)) {
                        disclosureEventTypeAjaxBean.setKeyValues(keyValues);
                    }
                }
            } catch (Exception e) {
                //Failed to load select box 
            }
        }

        // disclosure ID and label are always required, so put in a default
        if (StringUtils.isEmpty(disclosureEventType.getProjectIdLabel())) {
            disclosureEventType.setProjectIdLabel(CoreApiServiceLocator.getKualiConfigurationService()
                    .getPropertyValueAsString(DEFAULT_EVENT_ID_STRING));
        }
        if (StringUtils.isEmpty(disclosureEventType.getProjectTitleLabel())) {
            disclosureEventType.setProjectTitleLabel(CoreApiServiceLocator.getKualiConfigurationService()
                    .getPropertyValueAsString(DEFAULT_EVENT_TITLE_STRING));
        }
        ObjectMapper mapper = new ObjectMapper();
        mapper.writeValue(writer, disclosureEventTypeAjaxBean);

        response.setContentType("application/json");
        ServletOutputStream out = response.getOutputStream();

        try {
            out.write(writer.getBuffer().toString().getBytes());
            out.flush();
            out.close();
        } catch (Exception e) {
            e.printStackTrace(new PrintWriter(out));
        }

    }
    return null;
}