Example usage for javax.servlet ServletOutputStream write

List of usage examples for javax.servlet ServletOutputStream write

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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:it.openprj.jValidator.spring.ExtraCheckCustomCodeValidator.java

public ModelAndView handleRequest(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {

    String code = request.getParameter("value");
    String name = request.getParameter("name");
    String addReq = request.getParameter("addReq");

    //TODO: take the result message from "locale"
    String result = null;//from  www  . j  a  v a 2s  .c  o  m
    ObjectMapper mapper = new ObjectMapper();
    ServletOutputStream out = null;
    response.setContentType("application/json");
    out = response.getOutputStream();
    if (StringUtils.isEmpty(code) || StringUtils.isEmpty(name)) {
        result = I18n.getMessage("error.extracheck.invaliddata");
    } else {
        name = name.trim();
        if (addReq.equalsIgnoreCase("true")) {
            ReadList list = checksTypeDao.findCustomCodeByName(name);
            if (list != null && CollectionUtils.isNotEmpty(list.getResults())) {
                result = I18n.getMessage("error.extracheck.name.alreadyexist");
                out.write(mapper.writeValueAsBytes(result));
                out.flush();
                out.close();
                return null;
            }
        }
        try {
            File sourceDir = new File(System.getProperty("java.io.tmpdir"), "jValidator/src");
            sourceDir.mkdirs();
            String classNamePack = name.replace('.', File.separatorChar);
            String srcFilePath = sourceDir + "" + File.separatorChar + classNamePack + ".java";
            File sourceFile = new File(srcFilePath);
            if (sourceFile.exists()) {
                sourceFile.delete();
            }
            FileUtils.writeStringToFile(new File(srcFilePath), code);
            DynamicClassLoader dynacode = DynamicClassLoader.getInstance();
            dynacode.addSourceDir(sourceDir);
            CustomCodeValidator customCodeValidator = (CustomCodeValidator) dynacode
                    .newProxyInstance(CustomCodeValidator.class, name);
            boolean isValid = false;
            if (customCodeValidator != null) {
                Class clazz = dynacode.getLoadedClass(name);
                if (clazz != null) {
                    Class[] interfaces = clazz.getInterfaces();
                    if (ArrayUtils.isNotEmpty(interfaces)) {
                        for (Class clz : interfaces) {
                            if ((clz.getName().equalsIgnoreCase(
                                    "it.openprj.jValidator.utils.validation.SingleValidation"))) {
                                isValid = true;
                            }
                        }
                    }
                }
            }
            if (isValid) {
                result = "Success";
            } else {
                result = I18n.getMessage("error.extracheck.wrongimpl");
            }
        } catch (Exception e) {
            result = "Failed. Reason:" + e.getMessage();
        }
    }
    out.write(mapper.writeValueAsBytes(result));
    out.flush();
    out.close();
    return null;
}

From source file:org.wso2.carbon.logging.view.ui.LogViewerClient.java

public void downloadArchivedLogFiles(String logFile, HttpServletResponse response, String tenantDomain,
        String serverKey) throws RemoteException, LogViewerException {
    String msg = "Error occurred while getting logger data. Backend service may be " + "unavailable";

    InputStream fileToDownload = null;
    try {//  w  w w  .j a  v a2s  .  c  o m
        logFile = logFile.replace(".gz", "");
        ServletOutputStream outputStream = response.getOutputStream();
        response.setContentType("application/txt");
        response.setHeader("Content-Disposition", "attachment;filename=" + logFile.replaceAll("\\s", "_"));
        DataHandler data = stub.downloadArchivedLogFiles(logFile, tenantDomain, serverKey);
        fileToDownload = data.getInputStream();
        int c;
        while ((c = fileToDownload.read()) != -1) {
            outputStream.write(c);
        }
        outputStream.flush();
        outputStream.flush();
    } catch (RemoteException e) {
        log.error(msg, e);
        throw e;
    } catch (LogViewerException e) {
        log.error(msg, e);
        throw e;
    } catch (IOException e) {
        String errorWhileDownloadingMsg = "Error while downloading file.";
        log.error(errorWhileDownloadingMsg, e);
        throw new LogViewerException(errorWhileDownloadingMsg, e);
    } finally {
        try {
            if (fileToDownload != null) {
                fileToDownload.close();
            }
        } catch (IOException e) {
            log.error("Couldn't close the InputStream " + e.getMessage(), e);
        }
    }
}

From source file:au.org.ala.layers.web.UserDataService.java

private void setImageBlank(HttpServletResponse response) {
    if (blankImageBytes == null && blankImageObject != null) {
        synchronized (blankImageObject) {
            if (blankImageBytes == null) {
                try {
                    RandomAccessFile raf = new RandomAccessFile(
                            UserDataService.class.getResource("/blank.png").getFile(), "r");
                    blankImageBytes = new byte[(int) raf.length()];
                    raf.read(blankImageBytes);
                    raf.close();/*  www.j  a v a  2  s .  c  o m*/
                } catch (IOException e) {
                    logger.error("error reading default blank tile", e);
                }
            }
        }
    }
    if (blankImageObject != null) {
        response.setContentType("image/png");
        try {
            ServletOutputStream outStream = response.getOutputStream();
            outStream.write(blankImageBytes);
            outStream.flush();
            outStream.close();
        } catch (IOException e) {
            logger.error("error outputting blank tile", e);
        }
    }
}

From source file:it.eng.spagobi.mapcatalogue.service.DetailMapModule.java

/**
 * sends an error message to the client/*from  w ww  . j  ava2  s .c  om*/
 * @param out The servlet output stream
 */
private void sendError(ServletOutputStream out) {
    try {
        out.write("<html>".getBytes());
        out.write("<body>".getBytes());
        out.write("<br/><br/><center><h2><span style=\"color:red;\">Unable to produce map</span></h2></center>"
                .getBytes());
        out.write("</body>".getBytes());
        out.write("</html>".getBytes());
    } catch (Exception e) {
        TracerSingleton.log(SpagoBIConstants.NAME_MODULE, TracerSingleton.MAJOR,
                "GeoAction :: sendError : " + "Unable to write into output stream ", e);
    }
}

From source file:com.jd.survey.web.survey.PrivateSurveyController.java

/**
 * Returns the survey logo image binary  
 * @param departmentId/*ww w  .java2s .c  o  m*/
 * @param uiModel
 * @param httpServletRequest
 * @return
 */
@Secured({ "ROLE_ADMIN", "ROLE_SURVEY_ADMIN", "ROLE_SURVEY_PARTICIPANT" })
@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.userIsAuthorizedToCreateSurvey(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"));
        } else {
            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.sample.JavaHTTPResource.java

public void execute(HttpHost host, HttpUriRequest req, HttpServletResponse resultResponse)
        throws IOException, IllegalStateException, SAXException {
    HttpResponse RSSResponse = client.execute(host, req);
    ServletOutputStream os = resultResponse.getOutputStream();
    if (RSSResponse.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {
        resultResponse.addHeader("Content-Type", "application/json");
        //String json = IOUtils.toString(RSSResponse.getEntity().getContent());
        InputStream in = RSSResponse.getEntity().getContent();
        StringBuilder sb = new StringBuilder();
        BufferedReader br = new BufferedReader(new InputStreamReader(in));
        String read;//from   www .  j ava 2  s.c om

        while ((read = br.readLine()) != null) {
            //System.out.println(read);
            sb.append(read);
        }

        br.close();
        os.write(sb.toString().getBytes(Charset.forName("UTF-8")));

    } else {
        resultResponse.setStatus(RSSResponse.getStatusLine().getStatusCode());
        RSSResponse.getEntity().getContent().close();
        os.write(RSSResponse.getStatusLine().getReasonPhrase().getBytes());
    }
    os.flush();
    os.close();
}

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

public void doPost(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    Long startTime = System.currentTimeMillis();
    File tmpDir = null;//from   w ww  . j  a  v a  2 s  .c om
    try {
        //create temp directory
        tmpDir = createTempDirectory("makeWar");
        logger.debug("tmpDir " + tmpDir);

        //  create output directories
        File webInfDir = new File(tmpDir.getPath(), "WEB-INF");
        if (!webInfDir.mkdir())
            throw new Exception("Can't create output directory (WEB-INF)");
        File outDir = new File(webInfDir.getPath(), "classes");
        if (!outDir.mkdir())
            throw new Exception("Can't create output directory (WEB-INF/classes)");
        File libDir = new File(webInfDir.getPath(), "lib");
        if (!libDir.mkdir())
            throw new Exception("Can't create output directory (WEB-INF/lib)");

        // get input files
        List<FileItem> items = new ServletFileUpload(new DiskFileItemFactory()).parseRequest(request);
        String pojofile = null;
        String jarfile = null;
        String mojofile = null;
        String pythonfile = null;
        String predictorClassName = null;
        String pythonenvfile = null;
        ArrayList<String> pojos = new ArrayList<String>();
        ArrayList<String> rawfiles = new ArrayList<String>();
        for (FileItem i : items) {
            String field = i.getFieldName();
            String filename = i.getName();
            if (filename != null && filename.length() > 0) {
                if (field.equals("pojo")) { // pojo file name, use this or a mojo file
                    pojofile = filename;
                    pojos.add(pojofile);
                    predictorClassName = filename.replace(".java", "");
                    FileUtils.copyInputStreamToFile(i.getInputStream(), new File(tmpDir, filename));
                    logger.info("added pojo model {}", filename);
                }
                if (field.equals("jar")) {
                    jarfile = "WEB-INF" + File.separator + "lib" + File.separator + filename;
                    FileUtils.copyInputStreamToFile(i.getInputStream(), new File(libDir, filename));
                }
                if (field.equals("python")) {
                    pythonfile = "WEB-INF" + File.separator + "python.py";
                    FileUtils.copyInputStreamToFile(i.getInputStream(), new File(webInfDir, "python.py"));
                }
                if (field.equals("pythonextra")) { // optional extra files for python
                    pythonfile = "WEB-INF" + File.separator + "lib" + File.separator + filename;
                    FileUtils.copyInputStreamToFile(i.getInputStream(), new File(libDir, filename));
                }
                if (field.equals("mojo")) { // a raw model zip file, a mojo file (optional)
                    mojofile = filename;
                    rawfiles.add(mojofile);
                    predictorClassName = filename.replace(".zip", "");
                    FileUtils.copyInputStreamToFile(i.getInputStream(), new File(tmpDir, filename));
                    logger.info("added mojo model {}", filename);
                }
                if (field.equals("envfile")) { // optional conda environment file
                    pythonenvfile = filename;
                    FileUtils.copyInputStreamToFile(i.getInputStream(), new File(tmpDir, filename));
                    logger.debug("using conda environment file {}", pythonenvfile);
                }
            }
        }
        logger.debug("jar {}  pojo {}  mojo {}  python {}  envfile {}", jarfile, pojofile, mojofile, pythonfile,
                pythonenvfile);
        if ((pojofile == null || jarfile == null) && (mojofile == null || jarfile == null))
            throw new Exception("need either pojo and genmodel jar, or raw file and genmodel jar ");

        if (pojofile != null) {
            // Compile the pojo
            runCmd(tmpDir,
                    Arrays.asList("javac", "-target", JAVA_TARGET_VERSION, "-source", JAVA_TARGET_VERSION,
                            "-J-Xmx" + MEMORY_FOR_JAVA_PROCESSES, "-cp", jarfile, "-d", outDir.getPath(),
                            pojofile),
                    "Compilation of pojo failed");
            logger.info("compiled pojo {}", pojofile);
        }

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

        FileUtils.copyDirectoryToDirectory(new File(servletPath, "extra"), tmpDir);
        String extraPath = "extra" + File.separator;
        String webInfPath = extraPath + File.separator + "WEB-INF" + File.separator;
        String srcPath = extraPath + "src" + File.separator;
        copyExtraFile(servletPath, extraPath, tmpDir, "pyindex.html", "index.html");
        copyExtraFile(servletPath, extraPath, tmpDir, "jquery.js", "jquery.js");
        copyExtraFile(servletPath, extraPath, tmpDir, "predict.js", "predict.js");
        copyExtraFile(servletPath, extraPath, tmpDir, "custom.css", "custom.css");
        copyExtraFile(servletPath, webInfPath, webInfDir, "web-pythonpredict.xml", "web.xml");
        FileUtils.copyDirectoryToDirectory(new File(servletPath, webInfPath + "lib"), webInfDir);
        FileUtils.copyDirectoryToDirectory(new File(servletPath, extraPath + "bootstrap"), tmpDir);
        FileUtils.copyDirectoryToDirectory(new File(servletPath, extraPath + "fonts"), tmpDir);

        // change the class name in the predictor template file to the predictor we have
        String modelCode = null;
        if (!pojos.isEmpty()) {
            FileUtils.writeLines(new File(tmpDir, "modelnames.txt"), pojos);
            modelCode = "null";
        } else if (!rawfiles.isEmpty()) {
            FileUtils.writeLines(new File(tmpDir, "modelnames.txt"), rawfiles);
            modelCode = "MojoModel.load(fileName)";
        }
        InstantiateJavaTemplateFile(tmpDir, modelCode, predictorClassName, "null",
                pythonenvfile == null ? "" : pythonenvfile, srcPath + "ServletUtil-TEMPLATE.java",
                "ServletUtil.java");

        copyExtraFile(servletPath, srcPath, tmpDir, "PredictPythonServlet.java", "PredictPythonServlet.java");
        copyExtraFile(servletPath, srcPath, tmpDir, "InfoServlet.java", "InfoServlet.java");
        copyExtraFile(servletPath, srcPath, tmpDir, "StatsServlet.java", "StatsServlet.java");
        copyExtraFile(servletPath, srcPath, tmpDir, "PingServlet.java", "PingServlet.java");
        copyExtraFile(servletPath, srcPath, tmpDir, "Transform.java", "Transform.java");
        copyExtraFile(servletPath, srcPath, tmpDir, "Logging.java", "Logging.java");

        // compile extra
        runCmd(tmpDir,
                Arrays.asList("javac", "-target", JAVA_TARGET_VERSION, "-source", JAVA_TARGET_VERSION,
                        "-J-Xmx" + MEMORY_FOR_JAVA_PROCESSES, "-cp",
                        "WEB-INF/lib/*:WEB-INF/classes:extra/WEB-INF/lib/*", "-d", outDir.getPath(),
                        "InfoServlet.java", "StatsServlet.java", "PredictPythonServlet.java",
                        "ServletUtil.java", "PingServlet.java", "Transform.java", "Logging.java"),
                "Compilation of servlet failed");

        // create the war jar file
        Collection<File> filesc = FileUtils.listFilesAndDirs(webInfDir, TrueFileFilter.INSTANCE,
                TrueFileFilter.INSTANCE);
        filesc.add(new File(tmpDir, "index.html"));
        filesc.add(new File(tmpDir, "jquery.js"));
        filesc.add(new File(tmpDir, "predict.js"));
        filesc.add(new File(tmpDir, "custom.css"));
        filesc.add(new File(tmpDir, "modelnames.txt"));
        for (String m : pojos) {
            filesc.add(new File(tmpDir, m));
        }
        for (String m : rawfiles) {
            filesc.add(new File(tmpDir, m));
        }
        Collection<File> dirc = FileUtils.listFilesAndDirs(new File(tmpDir, "bootstrap"),
                TrueFileFilter.INSTANCE, TrueFileFilter.INSTANCE);
        filesc.addAll(dirc);
        dirc = FileUtils.listFilesAndDirs(new File(tmpDir, "fonts"), TrueFileFilter.INSTANCE,
                TrueFileFilter.INSTANCE);
        filesc.addAll(dirc);

        File[] files = filesc.toArray(new File[] {});
        if (files.length == 0)
            throw new Exception("Can't list compiler output files (out)");

        byte[] resjar = createJarArchiveByteArray(files, tmpDir.getPath() + File.separator);
        if (resjar == null)
            throw new Exception("Can't create war of compiler output");
        logger.info("war created from {} files, size {}", files.length, resjar.length);

        // send jar back
        ServletOutputStream sout = response.getOutputStream();
        response.setContentType("application/octet-stream");
        String outputFilename = predictorClassName.length() > 0 ? predictorClassName : "h2o-predictor";
        response.setHeader("Content-disposition", "attachment; filename=" + outputFilename + ".war");
        response.setContentLength(resjar.length);
        sout.write(resjar);
        sout.close();
        response.setStatus(HttpServletResponse.SC_OK);

        Long elapsedMs = System.currentTimeMillis() - startTime;
        logger.info("Done python war creation in {}", elapsedMs);
    } catch (Exception e) {
        logger.error("doPost failed", e);
        // send the error message back
        String message = e.getMessage();
        if (message == null)
            message = "no message";
        logger.error(message);
        response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
        response.getWriter().write(message);
        response.getWriter().write(Arrays.toString(e.getStackTrace()));
        response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, e.getMessage());
    } finally {
        // if the temp directory is still there we delete it
        if (tmpDir != null && tmpDir.exists()) {
            try {
                FileUtils.deleteDirectory(tmpDir);
            } catch (IOException e) {
                logger.error("Can't delete tmp directory");
            }
        }
    }

}

From source file:org.wso2.carbon.identity.provider.openid.handlers.OpenIDHandler.java

/**
 * Send a direct response to the RP./* w ww  . j  a va2s.  c  o m*/
 *
 * @param httpResp HttpServletResponse
 * @param response Response message
 * @return
 * @throws IOException
 */
private void directResponse(HttpServletResponse httpResp, String response) throws IOException {
    ServletOutputStream stream = null;
    try {
        stream = httpResp.getOutputStream();
        stream.write(response.getBytes());
    } finally {
        if (stream != null) {
            stream.close();
        }
    }
}

From source file:ispyb.client.common.shipping.UploadShipmentAction.java

/**
 * DownloadFile/*from www  .  j a  va  2  s.co m*/
 * 
 * @param mapping
 * @param actForm
 * @param request
 * @param response
 * @return
 */
public ActionForward DownloadFile(ActionMapping mapping, ActionForm actForm, HttpServletRequest request,
        HttpServletResponse response) {

    ActionMessages errors = new ActionMessages();
    String fileType = request.getParameter(Constants.TEMPLATE_FILE_TYPE);

    if (fileType == null)
        fileType = this.mFileType;
    try {
        String targetUpload = new String("");
        String attachmentFilename = new String("");
        if (fileType.equals(Constants.TEMPLATE_FILE_TYPE_TEMPLATE)) {
            targetUpload = Constants.TEMPLATE_RELATIVE_PATH;
            targetUpload = request.getRealPath(targetUpload);
            attachmentFilename = Constants.TEMPLATE_XLS_FILENAME;
        }
        if (fileType.equals(Constants.TEMPLATE_FILE_TYPE_POPULATED_TEMPLATE)) {
            targetUpload = PopulateTemplate(request, true, false, false, null, null, false, 0, false, 0);
            attachmentFilename = PopulateTemplate(request, false, true, false, null, null, false, 0, false, 0);
        }
        if (fileType.equals(Constants.TEMPLATE_FILE_TYPE_POPULATED_TEMPLATE_ADVANCED)) {
            targetUpload = PopulateTemplate(request, true, false, true, null, null, false, 0, false, 0);
            attachmentFilename = PopulateTemplate(request, false, true, true, null, null, false, 0, false, 0);
        }
        if (fileType.equals(Constants.TEMPLATE_FILE_TYPE_EXPORT_SHIPPING)) {
            targetUpload = PopulateTemplate(request, true, false, false, null, null, false, 0, false, 0);
            attachmentFilename = PopulateTemplate(request, false, true, false, null, null, false, 0, false, 0);
        }
        if (fileType.equals(Constants.TEMPLATE_FILE_TYPE_POPULATED_TEMPLATE_FROM_SHIPMENT)) {
            Integer _shippingId = Integer.decode(request.getParameter(Constants.SHIPPING_ID));
            int shippingId = (_shippingId != null) ? _shippingId.intValue() : 0;
            targetUpload = PopulateTemplate(request, true, false, false, null, null, false, 0, true,
                    shippingId);
            attachmentFilename = PopulateTemplate(request, false, true, false, null, null, false, 0, true,
                    shippingId);
        }

        try {

            byte[] imageBytes = FileUtil.readBytes(targetUpload);
            response.setContentLength(imageBytes.length);
            ServletOutputStream out = response.getOutputStream();
            response.setHeader("Pragma", "public");
            response.setHeader("Cache-Control", "max-age=0");
            response.setContentType("application/vnd.ms-excel");
            response.setHeader("Content-Disposition", "attachment; filename=" + attachmentFilename);

            out.write(imageBytes);
            out.flush();
            out.close();

        } catch (Exception e) {
            e.printStackTrace();
        }
    } catch (Exception e) {
        errors.add(ActionMessages.GLOBAL_MESSAGE, new ActionMessage("errors.detail", e.toString()));
        LOG.error(e.toString());
        saveErrors(request, errors);
        return mapping.findForward("error");
    }

    return null;
}

From source file:org.wso2.carbon.humantask.ui.clients.HumanTaskPackageManagementServiceClient.java

/**
 * Download package archive.//from   w  w w .j a  va  2s  . c  o m
 *
 * @param humanTaskPackageName : The package name.
 * @param response             :
 * @throws PackageManagementException :
 * @throws java.io.IOException        :
 */
public void downloadHumanTaskPackage(String humanTaskPackageName, HttpServletResponse response)
        throws PackageManagementException, IOException {
    try {
        ServletOutputStream out = response.getOutputStream();

        HumanTaskPackageDownloadData downloadData = stub.downloadHumanTaskPackage(humanTaskPackageName);
        if (downloadData != null) {
            DataHandler handler = downloadData.getPackageFileData();
            response.setHeader("Content-Disposition", "fileName=" + downloadData.getPackageName());
            response.setContentType(handler.getContentType());
            InputStream in = handler.getDataSource().getInputStream();
            int nextChar;
            while ((nextChar = in.read()) != -1) {
                out.write((char) nextChar);
            }
            out.flush();
            in.close();
        } else {
            out.write("The requested package archive was not found on the server".getBytes());
        }
    } catch (RemoteException e) {
        log.error(e);
        throw e;
    } catch (IOException e) {
        log.error(e);
        throw e;
    }
}