Example usage for javax.servlet ServletOutputStream write

List of usage examples for javax.servlet ServletOutputStream write

  1. HOME
  2. Java
  3. javax
  4. javax.servlet.*
  5. ServletOutputStream
  6. write

Introduction

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

Prototype

public abstract void write(int b) throws IOException;

Source Link

Document

Writes the specified byte to this output stream.

Usage

From source file:eu.freme.broker.tools.internationalization.EInternationalizationFilter.java

public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain)
        throws IOException, ServletException {

    if (!(req instanceof HttpServletRequest) || !(res instanceof HttpServletResponse)) {
        chain.doFilter(req, res);//from   w  ww.  j  av a  2  s . co  m
        return;
    }

    HttpServletRequest httpRequest = (HttpServletRequest) req;
    HttpServletResponse httpResponse = (HttpServletResponse) res;

    if (httpRequest.getMethod().equals("OPTIONS")) {
        chain.doFilter(req, res);
        return;
    }

    String uri = httpRequest.getRequestURI();
    for (Pattern pattern : endpointBlacklistRegex) {
        if (pattern.matcher(uri).matches()) {
            chain.doFilter(req, res);
            return;
        }
    }

    String informat = getInformat(httpRequest);
    String outformat = getOutformat(httpRequest);

    if (outformat != null && (informat == null || !outformat.equals(informat))) {
        Exception exception = new BadRequestException("Can only convert to outformat \"" + outformat
                + "\" when informat is also \"" + outformat + "\"");
        exceptionHandlerService.writeExceptionToResponse(httpRequest, httpResponse, exception);
        return;
    }

    if (outformat != null && !outputFormats.contains(outformat)) {
        Exception exception = new BadRequestException("\"" + outformat + "\" is not a valid output format");
        exceptionHandlerService.writeExceptionToResponse(httpRequest, httpResponse, exception);
        return;
    }

    if (informat == null) {
        chain.doFilter(req, res);
        return;
    }

    boolean roundtripping = false;
    if (outformat != null) {
        roundtripping = true;
        logger.debug("convert from " + informat + " to " + outformat);
    } else {
        logger.debug("convert input from " + informat + " to nif");
    }

    // do conversion of informat to nif
    // create BodySwappingServletRequest

    String inputQueryString = req.getParameter("input");
    ByteArrayOutputStream baos = new ByteArrayOutputStream();

    try (InputStream requestInputStream = inputQueryString == null ? /*
                                                                     * read
                                                                     * data
                                                                     * from
                                                                     * request
                                                                     * body
                                                                     */req.getInputStream()
            : /*
              * read data from query string input
              * parameter
              */new ReaderInputStream(new StringReader(inputQueryString), "UTF-8")) {
        // copy request content to buffer
        IOUtils.copy(requestInputStream, baos);
    }

    // create request wrapper that converts the body of the request from the
    // original format to turtle
    Reader nif;

    byte[] baosData = baos.toByteArray();
    if (baosData.length == 0) {
        Exception exception = new BadRequestException("No input data found in request.");
        exceptionHandlerService.writeExceptionToResponse(httpRequest, httpResponse, exception);
        return;
    }

    ByteArrayInputStream bais = new ByteArrayInputStream(baosData);
    try {
        nif = eInternationalizationApi.convertToTurtle(bais, informat.toLowerCase());
    } catch (ConversionException e) {
        logger.error("Error", e);
        throw new InternalServerErrorException("Conversion from \"" + informat + "\" to NIF failed");
    }

    BodySwappingServletRequest bssr = new BodySwappingServletRequest((HttpServletRequest) req, nif,
            roundtripping);

    if (!roundtripping) {
        chain.doFilter(bssr, res);
        return;
    }

    ConversionHttpServletResponseWrapper dummyResponse;

    try {
        dummyResponse = new ConversionHttpServletResponseWrapper(httpResponse, eInternationalizationApi,
                new ByteArrayInputStream(baosData), informat, outformat);

        chain.doFilter(bssr, dummyResponse);

        ServletOutputStream sos = httpResponse.getOutputStream();

        byte[] data = dummyResponse.writeBackToClient();
        httpResponse.setContentLength(data.length);
        sos.write(data);
        sos.flush();
        sos.close();

    } catch (ConversionException e) {
        e.printStackTrace();
        // exceptionHandlerService.writeExceptionToResponse((HttpServletResponse)res,new
        // InternalServerErrorException());
    }
}

From source file:com.jd.survey.web.reports.ReportController.java

/**
 * Exports survey data to a comma delimited values file
 * @param surveyDefinitionId/*from w w w .  ja  v a  2 s .  c o  m*/
 * @param principal
 * @param response
 */
@Secured({ "ROLE_ADMIN", "ROLE_SURVEY_ADMIN" })
@RequestMapping(value = "/{id}", params = "csv", produces = "text/html")
public void surveyCSVExport(@PathVariable("id") Long surveyDefinitionId, Principal principal,
        HttpServletRequest httpServletRequest, HttpServletResponse response) {
    try {

        User user = userService.user_findByLogin(principal.getName());
        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");
            //throw new AccessDeniedException("Unauthorized access attempt");
        }

        String columnName;
        SurveyDefinition surveyDefinition = surveySettingsService.surveyDefinition_findById(surveyDefinitionId);
        List<Map<String, Object>> surveys = reportDAO.getSurveyData(surveyDefinitionId);

        StringBuilder stringBuilder = new StringBuilder();

        stringBuilder.append(
                "\"id\",\"Survey Name\",\"User Login\",\"Submission Date\",\"Creation Date\",\"Last Update Date\",");
        for (SurveyDefinitionPage page : surveyDefinition.getPages()) {
            for (Question question : page.getQuestions()) {
                if (question.getType().getIsMatrix()) {
                    for (QuestionRowLabel questionRowLabel : question.getRowLabels()) {
                        for (QuestionColumnLabel questionColumnLabel : question.getColumnLabels()) {
                            stringBuilder.append("\" p" + page.getOrder() + "q" + question.getOrder() + "r"
                                    + questionRowLabel.getOrder() + "c" + questionColumnLabel.getOrder()
                                    + "\",");
                        }
                    }
                    continue;
                }

                if (question.getType().getIsMultipleValue()) {
                    for (QuestionOption questionOption : question.getOptions()) {
                        stringBuilder.append("\" p" + page.getOrder() + "q" + question.getOrder() + "o"
                                + questionOption.getOrder() + "\",");

                    }
                    continue;
                }
                stringBuilder.append("\"p" + page.getOrder() + "q" + question.getOrder() + "\",");
            }
        }

        stringBuilder.deleteCharAt(stringBuilder.length() - 1); //delete the last comma
        stringBuilder.append("\n");

        for (Map<String, Object> record : surveys) {
            stringBuilder.append(record.get("survey_id") == null ? ""
                    : "\"" + record.get("survey_id").toString().replace("\"", "\"\"") + "\",");
            stringBuilder.append(record.get("type_name") == null ? ""
                    : "\"" + record.get("type_name").toString().replace("\"", "\"\"") + "\",");
            stringBuilder.append(record.get("login") == null ? ""
                    : "\"" + record.get("login").toString().replace("\"", "\"\"") + "\",");
            stringBuilder.append(record.get("submission_date") == null ? ""
                    : "\"" + record.get("creation_date").toString().replace("\"", "\"\"") + "\",");
            stringBuilder.append(record.get("creation_date") == null ? ""
                    : "\"" + record.get("last_update_date").toString().replace("\"", "\"\"") + "\",");
            stringBuilder.append(record.get("last_update_date") == null ? ""
                    : "\"" + record.get("last_update_date").toString().replace("\"", "\"\"") + "\",");

            for (SurveyDefinitionPage page : surveyDefinition.getPages()) {
                for (Question question : page.getQuestions()) {
                    if (question.getType().getIsMatrix()) {
                        for (QuestionRowLabel questionRowLabel : question.getRowLabels()) {
                            for (QuestionColumnLabel questionColumnLabel : question.getColumnLabels()) {
                                columnName = "p" + page.getOrder() + "q" + question.getOrder() + "r"
                                        + questionRowLabel.getOrder() + "c" + questionColumnLabel.getOrder();
                                stringBuilder.append(record.get(columnName) == null ? ","
                                        : "\"" + record.get(columnName).toString().replace("\"", "\"\"")
                                                + "\",");
                            }
                        }
                        continue;
                    }
                    if (question.getType().getIsMultipleValue()) {
                        for (QuestionOption questionOption : question.getOptions()) {
                            columnName = "p" + page.getOrder() + "q" + question.getOrder() + "o"
                                    + questionOption.getOrder();
                            stringBuilder.append(record.get(columnName) == null ? ","
                                    : "\"" + record.get(columnName).toString().replace("\"", "\"\"") + "\",");
                        }
                        continue;
                    }
                    columnName = "p" + page.getOrder() + "q" + question.getOrder();
                    stringBuilder.append(record.get(columnName) == null ? ","
                            : "\"" + record.get(columnName).toString().replace("\"", "\"\"") + "\",");

                }
            }
            stringBuilder.deleteCharAt(stringBuilder.length() - 1); //delete the last comma
            stringBuilder.append("\n");
        }

        //Zip file manipulations Code
        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        ZipEntry zipentry;
        ZipOutputStream zipfile = new ZipOutputStream(bos);
        zipentry = new ZipEntry("survey" + surveyDefinition.getId() + ".csv");
        zipfile.putNextEntry(zipentry);
        zipfile.write(stringBuilder.toString().getBytes("UTF-8"));
        zipfile.close();

        //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=survey" + surveyDefinition.getId() + ".zip");
        ServletOutputStream servletOutputStream = response.getOutputStream();
        //servletOutputStream.write(stringBuilder.toString().getBytes("UTF-8"));
        servletOutputStream.write(bos.toByteArray());
        servletOutputStream.flush();

    } catch (Exception e) {
        log.error(e.getMessage(), e);
        throw new RuntimeException(e);
    }
}

From source file:com.tasktop.c2c.server.internal.wiki.server.WikiServiceController.java

@Section(value = "Attachments")
@Title("Retrieve Image")
@Documentation("Retrieve an Image from a Page")
@RequestMapping(value = "{pageId}/attachment/{name:.*}", method = RequestMethod.GET)
public void getImage(@PathVariable(value = "pageId") Integer pageId,
        @PathVariable(value = "name") String imageName, HttpServletRequest request,
        HttpServletResponse response) throws IOException {
    String etag = request.getHeader("If-None-Match");
    if (etag != null && etag.length() > 1 && etag.charAt(0) == '"' && etag.charAt(etag.length() - 1) == '"') {
        etag = etag.substring(1, etag.length() - 1);
    }/*  w w w .ja v a 2 s  .  c  om*/
    Attachment attachment;
    try {
        attachment = service.retrieveAttachmentByNameWithETag(pageId, imageName, etag);
    } catch (EntityNotFoundException e) {
        response.sendError(HttpServletResponse.SC_NOT_FOUND);
        return;
    }
    if (attachment.getContent() == null) {
        // ETag match
        response.sendError(HttpServletResponse.SC_NOT_MODIFIED);
        return;
    }
    String modified = formatRFC2822(attachment.getModificationDate());
    if (modified.equals(request.getHeader("If-Modified-Since"))) {
        response.sendError(HttpServletResponse.SC_NOT_MODIFIED);
        return;
    }
    response.setStatus(HttpServletResponse.SC_OK);
    response.setContentLength(attachment.getSize());
    response.setContentType(attachment.getMimeType());
    response.setHeader("ETag", "\"" + attachment.getEtag() + "\"");
    response.setHeader("Modified", modified);

    ServletOutputStream outputStream = response.getOutputStream();
    try {
        outputStream.write(attachment.getContent());
    } finally {
        outputStream.close();
    }
}

From source file:org.fenixedu.academic.ui.struts.action.internationalRelatOffice.candidacy.erasmus.ErasmusIndividualCandidacyProcessDA.java

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

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

    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);
    writer.flush();//  w w  w  . j a va 2  s  .  co m
    writer.close();

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

From source file:net.sourceforge.fenixedu.presentationTier.Action.internationalRelatOffice.candidacy.erasmus.ErasmusIndividualCandidacyProcessDA.java

public ActionForward retrieveLearningAgreement(ActionMapping mapping, ActionForm form,
        HttpServletRequest request, HttpServletResponse response) throws Exception {
    MobilityIndividualApplicationProcess process = 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);
    writer.flush();//ww w  . java 2 s .  c  om
    writer.close();

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

From source file:com.concursive.connect.web.modules.documents.beans.FileDownload.java

/**
 * Description of the Method//  w  ww . j a  v  a  2s .  c o  m
 *
 * @param context Description of the Parameter
 * @param text    Description of the Parameter
 * @throws Exception Description of the Exception
 */
public void sendTextAsFile(ActionContext context, String text) throws Exception {
    context.getResponse().setContentType("application/octet-stream");
    context.getResponse().setHeader("Content-Disposition", "attachment;filename=" + displayName + ";");
    context.getResponse().setContentLength((int) text.length());

    ServletOutputStream outputStream = context.getResponse().getOutputStream();
    StringReader strReader = new StringReader(text);
    int data;
    while ((data = strReader.read()) != -1) {
        outputStream.write(data);
    }
    strReader.close();
    outputStream.close();
}

From source file:org.ejbca.extra.ra.ScepRAServlet.java

/**
 * Sends back a number of bytes// www.j a v  a  2 s  .c o m
 *
 * @param bytes DER encoded certificate to be returned
 * @param out output stream to send to
 * @param contentType mime type to send back bytes as
 * @param fileName to call the file in a Content-disposition, can be null to leave out this header
 *
 * @throws Exception on error
 */
private void sendBinaryBytes(byte[] bytes, HttpServletResponse out, String contentType, String filename)
        throws Exception {
    if ((bytes == null) || (bytes.length == 0)) {
        log.error("0 length can not be sent to client!");
        return;
    }
    if (filename != null) {
        // We must remove cache headers for IE
        removeCacheHeaders(out);
        out.setHeader("Content-disposition", "filename=\"" + filename + "\"");
    }
    // Set content-type to general file
    out.setContentType(contentType);
    out.setContentLength(bytes.length);
    // Write the certificate
    ServletOutputStream os = out.getOutputStream();
    os.write(bytes);
    out.flushBuffer();
    log.debug("Sent " + bytes.length + " bytes to client");
}

From source file:org.extensiblecatalog.ncip.v2.responder.implprof1.NCIPServlet.java

/**
 * Create a valid version 2 NCIPMessage response indicating a "Temporary Processing Failure", without
 * relying on any facilities of the Toolkit. This method is to be used when handling exceptions that
 * indicate that Toolkit services such as
 * {@link ServiceHelper#generateProblems(org.extensiblecatalog.ncip.v2.service.ProblemType, String, String, String)} ()}
 * may fail.//from  w  w  w.  ja  v  a  2  s.c  o  m
 * @param response the HttpServletResponse object to use
 * @param detail the text message to include in the ProblemDetail element
 * @throws ServletException if there is an IOException writing to the response object's output stream
 */
protected void returnProblem(HttpServletResponse response, String detail) throws ServletException {
    String problemMsg = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
            // TODO: The version, namespace, etc. ought to come from ServiceContext
            + "<ns1:NCIPMessage ns1:version=\"http://www.niso.org/ncip/v2_0/imp1/xsd/ncip_v2_0.xsd\""
            + " xmlns:ns1=\"http://www.niso.org/2008/ncip\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\""
            + " xsi:schemaLocation=\"http://www.niso.org/2008/ncip ncip_v2_0.xsd\">\n" + "  <ns1:Problem>\n"
            + "    <ns1:ProblemType ns1:Scheme=\"http://www.niso.org/ncip/v1_0/schemes/processingerrortype/generalprocessingerror.scm\">Temporary Processing Failure</ns1:ProblemType>\n"
            + "    <ns1:ProblemDetail>" + StringEscapeUtils.escapeXml(detail) + "</ns1:ProblemDetail>\n"
            + "  </ns1:Problem>\n" + "</ns1:NCIPMessage>";

    byte[] problemMsgBytes = problemMsg.getBytes();

    response.setContentLength(problemMsgBytes.length);

    try {

        ServletOutputStream outputStream = response.getOutputStream();
        outputStream.write(problemMsgBytes);
        outputStream.flush();

    } catch (IOException e) {

        throw new ServletException("Exception writing Problem response.", e);

    }

}

From source file:ai.h2o.servicebuilder.CompilePojoServlet.java

public void doPost(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    File tmp = null;/*from   w  w  w.  ja v a  2s . co  m*/
    try {
        //create temp directory
        tmp = createTempDirectory("compilePojo");
        logger.info("tmp dir {}", tmp);

        // get input files
        List<FileItem> items = new ServletFileUpload(new DiskFileItemFactory()).parseRequest(request);
        List<String> pojofiles = new ArrayList<String>();
        String jarfile = null;
        for (FileItem i : items) {
            String field = i.getFieldName();
            String filename = i.getName();
            if (filename != null && filename.length() > 0) {
                if (field.equals("pojo")) {
                    pojofiles.add(filename);
                }
                if (field.equals("jar")) {
                    jarfile = filename;
                }
                FileUtils.copyInputStreamToFile(i.getInputStream(), new File(tmp, filename));
            }
        }
        if (pojofiles.isEmpty() || jarfile == null)
            throw new Exception("need pojofile(s) and jarfile");

        //  create output directory
        File out = new File(tmp.getPath(), "out");
        boolean mkDirResult = out.mkdir();
        if (!mkDirResult)
            throw new Exception("Can't create output directory (out)");

        if (servletPath == null)
            throw new Exception("servletPath is null");

        copyExtraFile(servletPath, "extra" + File.separator, tmp, "H2OPredictor.java", "H2OPredictor.java");
        FileUtils.copyDirectoryToDirectory(
                new File(servletPath, "extra" + File.separator + "WEB-INF" + File.separator + "lib"), tmp);
        copyExtraFile(servletPath, "extra" + File.separator, new File(out, "META-INF"), "MANIFEST.txt",
                "MANIFEST.txt");

        // Compile the pojo(s)
        for (String pojofile : pojofiles) {
            runCmd(tmp,
                    Arrays.asList("javac", "-target", JAVA_TARGET_VERSION, "-source", JAVA_TARGET_VERSION,
                            "-J-Xmx" + MEMORY_FOR_JAVA_PROCESSES, "-cp", jarfile + ":lib/*", "-d", "out",
                            pojofile, "H2OPredictor.java"),
                    "Compilation of pojo failed: " + pojofile);
        }

        // create jar result file
        runCmd(out, Arrays.asList("jar", "xf", tmp + File.separator + jarfile),
                "jar extraction of h2o-genmodel failed");

        runCmd(out,
                Arrays.asList("jar", "xf", tmp + File.separator + "lib" + File.separator + "gson-2.6.2.jar"),
                "jar extraction of gson failed");

        runCmd(out, Arrays.asList("jar", "cfm", tmp + File.separator + "result.jar",
                "META-INF" + File.separator + "MANIFEST.txt", "."), "jar creation failed");

        byte[] resjar = IOUtils.toByteArray(new FileInputStream(tmp + File.separator + "result.jar"));
        if (resjar == null)
            throw new Exception("Can't create jar of compiler output");

        logger.info("jar created, size {}", resjar.length);

        // send jar back
        ServletOutputStream sout = response.getOutputStream();
        response.setContentType("application/octet-stream");
        String outputFilename = pojofiles.get(0).replace(".java", "");
        response.setHeader("Content-disposition", "attachment; filename=" + outputFilename + ".jar");
        response.setContentLength(resjar.length);
        sout.write(resjar);
        sout.close();
        response.setStatus(HttpServletResponse.SC_OK);
    } catch (Exception e) {
        logger.error("post failed", e);
        // send the error message back
        String message = e.getMessage();
        if (message == null)
            message = "no message";
        logger.error(message);
        response.getWriter().write(message);
        response.getWriter().write(Arrays.toString(e.getStackTrace()));
        response.sendError(HttpServletResponse.SC_BAD_REQUEST, e.getMessage());
    } finally {
        // if the temp directory is still there we delete it
        try {
            if (tmp != null && tmp.exists())
                FileUtils.deleteDirectory(tmp);
        } catch (IOException e) {
            logger.error("Can't delete tmp directory");
        }
    }
}

From source file:org.gbif.portal.web.controller.taxonomy.NameIdMapperController.java

/**
 * @see org.springframework.web.servlet.mvc.AbstractFormController#handleRequestInternal(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)
 *///from w  w  w . j  av a2s .c o  m
@Override
protected ModelAndView handleRequestInternal(HttpServletRequest request, HttpServletResponse response)
        throws Exception {
    if (isFormSubmission(request) && request.getParameter("export") != null) {

        ServletOutputStream sOut = response.getOutputStream();
        response.setHeader("Content-Disposition", "attachment; name-id-pairs.txt");

        //get all the supplied names from the form
        int index = 1;

        String suppliedName = request.getParameter("supplied-name-" + index);
        while (suppliedName != null) {
            String systemId = request.getParameter("systemId-" + index);
            sOut.write(suppliedName.getBytes());
            sOut.write("\t".getBytes());
            if (systemId != null)
                sOut.write(systemId.getBytes());
            sOut.write("\n".getBytes());
            index++;
            suppliedName = request.getParameter("supplied-name-" + index);
        }
        return null;
    }
    return super.handleRequestInternal(request, response);
}