List of usage examples for javax.servlet ServletOutputStream write
public void write(byte b[], int off, int len) throws IOException
len bytes from the specified byte array starting at offset off to this output stream. From source file:edu.umn.cs.spatialHadoop.visualization.HadoopvizServer.java
/** * This method will handle each time a file need to be fetched from HDFS. * //from www. j a v a2 s.c o m * @param request * @param response */ private void handleHDFSFetch(HttpServletRequest request, HttpServletResponse response) { try { FileSystem fs = outputPath.getFileSystem(commonParams); String path = request.getRequestURI().replace("/hdfs", ""); Path filePath = new Path(path); LOG.info("Fetching from " + path); FSDataInputStream resource; resource = fs.open(filePath); if (resource == null) { reportError(response, "Cannot load resource '" + filePath + "'", null); return; } byte[] buffer = new byte[1024 * 1024]; ServletOutputStream outResponse = response.getOutputStream(); int size; while ((size = resource.read(buffer)) != -1) { outResponse.write(buffer, 0, size); } resource.close(); outResponse.close(); response.setStatus(HttpServletResponse.SC_OK); if (filePath.toString().endsWith("png")) { response.setContentType("image/png"); } } catch (Exception e) { System.out.println("error happened"); e.printStackTrace(); response.setContentType("text/plain;charset=utf-8"); response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR); } }
From source file:com.pdfhow.diff.UploadServlet.java
/** * Handles the HTTP <code>GET</code> method. * * @param request//w w w .j a v a 2s. co m * servlet request * @param response * servlet response * @throws ServletException * if a servlet-specific error occurs * @throws IOException * if an I/O error occurs */ @Override protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { if (request.getParameter("getfile") != null && !request.getParameter("getfile").isEmpty()) { File file = new File( request.getServletContext().getRealPath("/") + "imgs/" + request.getParameter("getfile")); if (file.exists()) { int bytes = 0; ServletOutputStream op = response.getOutputStream(); response.setContentType(getMimeType(file)); response.setContentLength((int) file.length()); response.setHeader("Content-Disposition", "inline; filename=\"" + file.getName() + "\""); byte[] bbuf = new byte[1024]; DataInputStream in = new DataInputStream(new FileInputStream(file)); while ((in != null) && ((bytes = in.read(bbuf)) != -1)) { op.write(bbuf, 0, bytes); } in.close(); op.flush(); op.close(); } } else if (request.getParameter("delfile") != null && !request.getParameter("delfile").isEmpty()) { File file = new File( request.getServletContext().getRealPath("/") + "imgs/" + request.getParameter("delfile")); if (file.exists()) { file.delete(); // TODO:check and report success } } else if (request.getParameter("getthumb") != null && !request.getParameter("getthumb").isEmpty()) { File file = new File( request.getServletContext().getRealPath("/") + "imgs/" + request.getParameter("getthumb")); if (file.exists()) { System.out.println(file.getAbsolutePath()); String mimetype = getMimeType(file); if (mimetype.endsWith("png") || mimetype.endsWith("jpeg") || mimetype.endsWith("jpg") || mimetype.endsWith("gif")) { BufferedImage im = ImageIO.read(file); if (im != null) { BufferedImage thumb = Scalr.resize(im, 75); ByteArrayOutputStream os = new ByteArrayOutputStream(); if (mimetype.endsWith("png")) { ImageIO.write(thumb, "PNG", os); response.setContentType("image/png"); } else if (mimetype.endsWith("jpeg")) { ImageIO.write(thumb, "jpg", os); response.setContentType("image/jpeg"); } else if (mimetype.endsWith("jpg")) { ImageIO.write(thumb, "jpg", os); response.setContentType("image/jpeg"); } else { ImageIO.write(thumb, "GIF", os); response.setContentType("image/gif"); } ServletOutputStream srvos = response.getOutputStream(); response.setContentLength(os.size()); response.setHeader("Content-Disposition", "inline; filename=\"" + file.getName() + "\""); os.writeTo(srvos); srvos.flush(); srvos.close(); } } } // TODO: check and report success } else { PrintWriter writer = response.getWriter(); writer.write("call POST with multipart form data"); } }
From source file:org.efs.openreports.services.servlet.ReportServiceServlet.java
protected void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { try {/*w w w .jav a2 s. c om*/ ServletReportServiceInput reportInput = buildReportServiceInput(request); reportInput.setParameterMap(request.getParameterMap()); ReportEngineOutput reportOutput = reportService.generateReport(reportInput); if (reportOutput instanceof QueryEngineOutput) { QueryEngineOutput queryReport = (QueryEngineOutput) reportOutput; request.getSession().setAttribute("properties", queryReport.getProperties()); request.getSession().setAttribute("results", queryReport.getResults()); request.getSession().setAttribute("reportName", StringUtils.deleteWhitespace(reportInput.getReportName())); response.sendRedirect("report-viewer/query-report.jsp"); //getServletContext().getRequestDispatcher("/report-viewer/query-report.jsp").forward(request, response); return; } ServletOutputStream out = response.getOutputStream(); if (reportOutput.getContent() != null) { if (reportInput.getExportType() != ReportEngine.EXPORT_HTML) { response.setContentType(reportOutput.getContentType()); response.setContentLength(reportOutput.getContent().length); response.setHeader("Content-disposition", "inline; filename=" + StringUtils.deleteWhitespace(reportInput.getReportName()) + reportOutput.getContentExtension()); } out.write(reportOutput.getContent(), 0, reportOutput.getContent().length); } else { out.write(reportOutput.getContentMessage().getBytes()); } out.flush(); out.close(); } catch (Exception e) { response.getOutputStream().write(e.toString().getBytes()); } }
From source file:org.freeeed.ep.web.controller.FileDownloadController.java
@Override public ModelAndView execute() { String result = (String) valueStack.get("file"); String resultFile = workDir + File.separator + result; File toDownload = new File(resultFile); try {// w ww . j a va 2 s. c o m int length = 0; ServletOutputStream outStream = response.getOutputStream(); String mimetype = "application/octet-stream"; response.setContentType(mimetype); response.setContentLength((int) toDownload.length()); String fileName = toDownload.getName(); // sets HTTP header response.setHeader("Content-Disposition", "attachment; filename=\"" + fileName + "\""); byte[] byteBuffer = new byte[1024]; DataInputStream in = new DataInputStream(new FileInputStream(toDownload)); // reads the file's bytes and writes them to the response stream while ((in != null) && ((length = in.read(byteBuffer)) != -1)) { outStream.write(byteBuffer, 0, length); } in.close(); outStream.close(); } catch (Exception e) { log.error("Problem sending cotent", e); valueStack.put("error", true); } return new ModelAndView(WebConstants.DOWNLOAD_RESULT); }
From source file:org.gbif.portal.web.controller.download.DownloadController.java
/** * Download if file exists, otherwise redirect to link expired view. * /*ww w . j a v a2 s . c om*/ * @param response * @param file * @return * @throws FileNotFoundException * @throws IOException */ private ModelAndView downloadIfFileExists(HttpServletRequest request, HttpServletResponse response, File file) throws FileNotFoundException, IOException { try { if (file.exists()) { FileInputStream fInput = new FileInputStream(file); String contentTypeToUse = ServletRequestUtils.getStringParameter(request, "contentType", contentType); response.setContentType(contentTypeToUse); if (setContentDisposition) { response.setHeader("Content-Disposition", "attachment; " + file.getName()); } ServletOutputStream sOut = response.getOutputStream(); response.setContentLength((int) file.length()); byte[] buf = new byte[1024]; int len; while ((len = fInput.read(buf)) > 0) { sOut.write(buf, 0, len); } sOut.flush(); } else { return new ModelAndView(expiredView); } } catch (FileNotFoundException e) { logger.error(e.getMessage(), e); return new ModelAndView(expiredView); } return null; }
From source file:com.portfolio.data.attachment.XSLService.java
void RetrieveAnswer(HttpURLConnection connection, HttpServletResponse response, String referer) throws MalformedURLException, IOException { /// Receive answer InputStream in;/*from w w w. j a va2 s. c o m*/ try { in = connection.getInputStream(); } catch (Exception e) { System.out.println(e.toString()); in = connection.getErrorStream(); } String ref = null; if (referer != null) { int first = referer.indexOf('/', 7); int last = referer.lastIndexOf('/'); ref = referer.substring(first, last); } response.setContentType(connection.getContentType()); response.setStatus(connection.getResponseCode()); response.setContentLength(connection.getContentLength()); /// Transfer headers Map<String, List<String>> headers = connection.getHeaderFields(); int size = headers.size(); for (int i = 1; i < size; ++i) { String key = connection.getHeaderFieldKey(i); String value = connection.getHeaderField(i); // response.setHeader(key, value); response.addHeader(key, value); } /// Deal with correct path with set cookie List<String> setValues = headers.get("Set-Cookie"); if (setValues != null) { String setVal = setValues.get(0); int pathPlace = setVal.indexOf("Path="); if (pathPlace > 0) { setVal = setVal.substring(0, pathPlace + 5); // Some assumption, may break setVal = setVal + ref; response.setHeader("Set-Cookie", setVal); } } /// Write back data DataInputStream stream = new DataInputStream(in); byte[] buffer = new byte[1024]; // int size; ServletOutputStream out = null; try { out = response.getOutputStream(); while ((size = stream.read(buffer, 0, buffer.length)) != -1) out.write(buffer, 0, size); } catch (Exception e) { System.out.println(e.toString()); System.out.println("Writing messed up!"); } finally { in.close(); out.flush(); // close() should flush already, but Tomcat 5.5 doesn't out.close(); } }
From source file:fr.insalyon.creatis.vip.core.server.rpc.GetFileServiceImpl.java
@Override protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { try {//from w w w . j a va 2 s. c o m User user = CoreDAOFactory.getDAOFactory().getUserDAO() .getUserBySession(req.getParameter(CoreConstants.COOKIES_SESSION)); String filepath = req.getParameter("filepath"); if (filepath != null && !filepath.isEmpty()) { File file = new File(Server.getInstance().getWorkflowsPath() + filepath); boolean isDir = false; if (file.isDirectory()) { String zipName = file.getAbsolutePath() + ".zip"; FolderZipper.zipFolder(file.getAbsolutePath(), zipName); filepath = zipName; file = new File(zipName); isDir = true; } logger.info("(" + user.getEmail() + ") Downloading file '" + filepath + "'."); int length = 0; ServletOutputStream op = resp.getOutputStream(); ServletContext context = getServletConfig().getServletContext(); String mimetype = context.getMimeType(file.getName()); resp.setContentType((mimetype != null) ? mimetype : "application/octet-stream"); resp.setContentLength((int) file.length()); resp.setHeader("Content-Disposition", "attachment; filename=\"" + file.getName() + "\""); byte[] bbuf = new byte[4096]; DataInputStream in = new DataInputStream(new FileInputStream(file)); while ((in != null) && ((length = in.read(bbuf)) != -1)) { op.write(bbuf, 0, length); } in.close(); op.flush(); op.close(); if (isDir) { FileUtils.deleteQuietly(file); } } } catch (DAOException ex) { throw new ServletException(ex); } }
From source file:org.ff4j.web.AdministrationConsoleServlet.java
/** * Build Http response when invoking export features. * /*from w w w. j a v a2 s. c om*/ * @param res * http response * @throws IOException * error when building response */ private void buildResponseForExportFeature(HttpServletResponse res) throws IOException { InputStream in = new FeatureXmlParser().exportFeatures(getFf4j().getStore().readAll()); ServletOutputStream sos = null; try { sos = res.getOutputStream(); res.setContentType("text/xml"); res.setHeader("Content-Disposition", "attachment; filename=\"ff4j.xml\""); // res.setContentLength() byte[] bbuf = new byte[BUFFER_SIZE]; int length = 0; while ((in != null) && (length != -1)) { length = in.read(bbuf); sos.write(bbuf, 0, length); } } finally { if (in != null) { in.close(); } if (sos != null) { sos.flush(); sos.close(); } } }
From source file:com.viewer.controller.ViewerController.java
@RequestMapping(value = "/GetFile") @ResponseBody/*w w w . ja va 2s . com*/ private void GetFile(@RequestParam String path, Boolean getPdf, Boolean useHtmlBasedEngine, Boolean supportPageRotation, HttpServletResponse response) throws Exception { File file = new File(path); String displayName = path; String nameWithoutExtension = removeExtention(path); Stream fileStream; File newFile = new File(nameWithoutExtension + ".pdf"); displayName = newFile.getPath(); PdfFileOptions options = new PdfFileOptions(); options.setGuid(path); FileContainer pdfFileResponse = _htmlHandler.getPdfFile(options); response.setContentType("application/octet-stream"); response.setHeader("Content-Disposition", "attachment; filename=\"" + displayName + "\""); InputStream fileIn = pdfFileResponse.getStream(); ServletOutputStream out = response.getOutputStream(); byte[] outputByte = new byte[4096]; while (fileIn.read(outputByte, 0, 4096) != -1) { out.write(outputByte, 0, 4096); } fileIn.close(); out.flush(); out.close(); }
From source file:org.vasanti.controller.DropZoneFileUpload.java
@Override protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { if (request.getParameter("getfile") != null && !request.getParameter("getfile").isEmpty()) { File file = new File(ImagefileUploadPath, request.getParameter("getfile")); if (file.exists()) { int bytes = 0; ServletOutputStream op = response.getOutputStream(); response.setContentType(getMimeType(file)); response.setContentLength((int) file.length()); response.setHeader("Content-Disposition", "inline; filename=\"" + file.getName() + "\""); byte[] bbuf = new byte[1024]; DataInputStream in = new DataInputStream(new FileInputStream(file)); while ((in != null) && ((bytes = in.read(bbuf)) != -1)) { op.write(bbuf, 0, bytes); }/* w ww. j a v a2s .c om*/ in.close(); op.flush(); op.close(); } } // else if (request.getParameter("delfile") != null && !request.getParameter("delfile").isEmpty()) { // File file = new File(request.getServletContext().getRealPath("/") + "imgs/" + request.getParameter("delfile")); // if (file.exists()) { // file.delete(); // TODO:check and report success // } // } else if (request.getParameter("getthumb") != null && !request.getParameter("getthumb").isEmpty()) { File file = new File(ImagefileUploadPath, request.getParameter("getthumb")); if (file.exists()) { String mimetype = getMimeType(file); if (mimetype.endsWith("png") || mimetype.endsWith("jpeg") || mimetype.endsWith("jpg") || mimetype.endsWith("gif")) { BufferedImage im = ImageIO.read(file); if (im != null) { BufferedImage thumb = Scalr.resize(im, 75); ByteArrayOutputStream os = new ByteArrayOutputStream(); if (mimetype.endsWith("png")) { ImageIO.write(thumb, "PNG", os); response.setContentType("image/png"); } else if (mimetype.endsWith("jpeg")) { ImageIO.write(thumb, "jpg", os); response.setContentType("image/jpeg"); } else if (mimetype.endsWith("jpg")) { ImageIO.write(thumb, "jpg", os); response.setContentType("image/jpeg"); } else { ImageIO.write(thumb, "GIF", os); response.setContentType("image/gif"); } ServletOutputStream srvos = response.getOutputStream(); response.setContentLength(os.size()); response.setHeader("Content-Disposition", "inline; filename=\"" + file.getName() + "\""); os.writeTo(srvos); srvos.flush(); srvos.close(); } } } // TODO: check and report success } else { PrintWriter writer = response.getWriter(); writer.write("call POST with multipart form data"); } }