Example usage for javax.servlet ServletOutputStream 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:org.opencastproject.manager.system.workflow.WorkflowManager.java

/**
 * Handle workflow's files./* w  w  w. jav  a2  s.c  om*/
 *
 * @param request
 * @param response
 * @throws ServletException
 * @throws IOException
 */
public void handleWorkflowFiles(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {

    String fileName = stringValidator((String) request.getParameter("workflow_file"));
    String empty = "";

    if (empty.equals(fileName) || fileName == null)
        throw new ServletException("Invalid or non-existent file parameter in SendXml servlet.");

    String xmlDir = PluginManagerConstants.WORKFLOWS_PATH;

    if (empty.equals(xmlDir) || xmlDir == null)
        throw new ServletException("Invalid or non-existent xmlDir context-param.");

    ServletOutputStream stream = null;
    BufferedInputStream buf = null;

    try {
        stream = response.getOutputStream();
        File xml = new File(xmlDir + fileName);

        response.setContentType("text/xml");
        response.addHeader("Content-Disposition", "attachment; filename=" + fileName);
        response.setContentLength((int) xml.length());

        FileInputStream input = new FileInputStream(xml);

        buf = new BufferedInputStream(input);

        int readBytes = 0;

        //read from the file; write to the ServletOutputStream
        while ((readBytes = buf.read()) != -1) {
            stream.write(readBytes);
        }

    } catch (IOException ioe) {
        throw new ServletException(ioe.getMessage());
    } finally {

        if (stream != null)
            stream.close();

        if (buf != null)
            buf.close();
    }
}

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From source file:UrlServlet.java

public void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {

    //get the 'file' parameter
    String fileName = (String) request.getParameter("file");
    if (fileName == null || fileName.equals(""))
        throw new ServletException("Invalid or non-existent file parameter in UrlServlet servlet.");

    if (fileName.indexOf(".pdf") == -1)
        fileName = fileName + ".pdf";

    URL pdfDir = null;/*from w ww . j  a  v  a 2  s .c  om*/
    URLConnection urlConn = null;
    ServletOutputStream stream = null;
    BufferedInputStream buf = null;
    try {

        pdfDir = new URL(getServletContext().getInitParameter("remote-pdf-dir") + fileName);

    } catch (MalformedURLException mue) {

        throw new ServletException(mue.getMessage());
    }
    try {

        stream = response.getOutputStream();

        //set response headers
        response.setContentType("application/pdf");
        response.addHeader("Content-Disposition", "attachment; filename=" + fileName);

        urlConn = pdfDir.openConnection();
        response.setContentLength((int) urlConn.getContentLength());

        buf = new BufferedInputStream(urlConn.getInputStream());
        int readBytes = 0;

        //read from the file; write to the ServletOutputStream
        while ((readBytes = buf.read()) != -1)
            stream.write(readBytes);
    } catch (IOException ioe) {
        throw new ServletException(ioe.getMessage());
    } finally {
        if (stream != null)
            stream.close();
        if (buf != null)
            buf.close();
    }
}

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From source file:org.red5.server.net.rtmpt.RTMPTServlet.java

/**
 * Return raw data to the client.//w  w  w .j  a  v  a2s . co m
 * 
 * @param conn
 *            RTMP connection
 * @param buffer
 *            Raw data as byte buffer
 * @param resp
 *            Servlet response
 * @throws IOException
 *             I/O exception
 */
protected void returnMessage(RTMPTConnection conn, IoBuffer buffer, HttpServletResponse resp)
        throws IOException {
    log.trace("returnMessage {}", buffer);
    if (conn != null) {
        resp.setStatus(HttpServletResponse.SC_OK);
    } else {
        resp.setStatus(HttpServletResponse.SC_BAD_REQUEST);
    }
    resp.setHeader("Connection", "Keep-Alive");
    resp.setHeader("Cache-Control", "no-cache");
    resp.setContentType(CONTENT_TYPE);
    int contentLength = buffer.limit() + 1;
    resp.setContentLength(contentLength);
    ServletOutputStream output = resp.getOutputStream();
    if (conn != null) {
        byte pollingDelay = conn.getPollingDelay();
        log.debug("Sending {} bytes; polling delay: {}", buffer.limit(), pollingDelay);
        output.write(pollingDelay);
    } else {
        output.write((byte) 0);
    }
    ServletUtils.copy(buffer.asInputStream(), output);
    if (conn != null) {
        conn.updateWrittenBytes(contentLength);
    }
    buffer.free();
    buffer = null;
}

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From source file:org.wso2.carbon.service.mgt.ui.ServiceAdminClient.java

public void downloadServiceArchive(String serviceGroupName, String serviceType, HttpServletResponse response)
        throws AxisFault {
    try {//  ww w . j  a  va2 s  . c  om
        ServletOutputStream out = response.getOutputStream();
        ServiceDownloadData downloadData = stub.downloadServiceArchive(serviceGroupName);
        if (downloadData != null) {
            DataHandler handler = downloadData.getServiceFileData();
            response.setHeader("Content-Disposition", "fileName=" + downloadData.getFileName());
            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 service archive was not found on the server".getBytes());
        }
    } catch (RemoteException e) {
        handleException("error.downloading.service", e);
    } catch (IOException e) {
        handleException("error.downloading.service", e);
    }
}

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

@Override
public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException {

    long respTotalStartTime = System.currentTimeMillis();
    String serviceName = "Unknown";

    try {/*from  w w w . j  a  v  a 2  s.  com*/

        response.setContentType("application/xml; charset=\"utf-8\"");

        // Note: Statements that might throw exceptions are wrapped in individual try/catch blocks, allowing us
        // to provide very specific error messages.

        ServletInputStream inputStream = null;
        try {

            inputStream = request.getInputStream();

        } catch (IOException e) {

            returnException(response, "Exception getting ServletInputStream from the HttpServletRequest.", e);

        }

        ServiceContext serviceContext = null;
        try {

            serviceContext = serviceValidator.getInitialServiceContext();

        } catch (ToolkitException e) {

            returnException(response, "Exception creating initial service context.", e);

        }

        NCIPInitiationData initiationData = null;

        try {

            initiationData = translator.createInitiationData(serviceContext, inputStream);

        } catch (ServiceException e) {

            returnException(response,
                    "Exception creating the NCIPInitiationData object from the servlet's input stream.", e);

        } catch (ValidationException e) {

            returnValidationProblem(response, e);

        }

        long initPerfSvcStartTime = System.currentTimeMillis();

        NCIPResponseData responseData = messageHandler.performService(initiationData, serviceContext);

        long initPerfSvcEndTime = System.currentTimeMillis();

        serviceName = ServiceHelper.getServiceName(initiationData);

        statisticsBean.record(initPerfSvcStartTime, initPerfSvcEndTime,
                StatisticsBean.RESPONDER_PERFORM_SERVICE_LABELS, serviceName);

        InputStream responseMsgInputStream = null;
        try {

            responseMsgInputStream = translator.createResponseMessageStream(serviceContext, responseData);

        } catch (ServiceException e) {

            returnException(response, "Exception creating the InputStream from the NCIPResponseData object.",
                    e);

        } catch (ValidationException e) {

            returnException(response, "Exception creating the InputStream from the NCIPResponseData object.",
                    e);

        }

        int bytesAvailable = 0;
        if (responseMsgInputStream != null) {

            try {

                bytesAvailable = responseMsgInputStream.available();

            } catch (IOException e) {

                returnException(response,
                        "Exception getting the count of available bytes from the response message's InputStream.",
                        e);

            }

        }

        int bytesRead = 0;
        if (bytesAvailable != 0) {

            byte[] responseMsgBytes = new byte[bytesAvailable];

            try {

                bytesRead = responseMsgInputStream.read(responseMsgBytes, 0, bytesAvailable);

            } catch (IOException e) {

                returnException(response, "Exception reading bytes from the response message's InputStream.",
                        e);

            }

            if (bytesRead != bytesAvailable) {

                returnProblem(response, "Bytes read from the response message's InputStream (" + bytesRead
                        + ") are not the same as the number available (" + bytesAvailable + ").");

            } else {

                response.setContentLength(responseMsgBytes.length);

                // TODO: What about a try/finally that closes the output stream - is that needed?

                ServletOutputStream outputStream = null;
                try {

                    outputStream = response.getOutputStream();

                } catch (IOException e) {

                    returnException(response, "Exception getting the HttpServletResponse's OutputStream.", e);

                }

                try {

                    outputStream.write(responseMsgBytes);

                } catch (IOException e) {

                    returnException(response,
                            "Exception writing the NCIP response message to the HttpServletResponse's OutputStream.",
                            e);

                }

                try {

                    outputStream.flush();

                } catch (IOException e) {

                    returnException(response, "Exception flushing the HttpServletResponse's OutputStream.", e);

                }

            }

        }

    } catch (Exception e) {

        returnException(response, "Uncaught exception.", e);

    }

    long respTotalEndTime = System.currentTimeMillis();

    statisticsBean.record(respTotalStartTime, respTotalEndTime, StatisticsBean.RESPONDER_TOTAL_LABELS,
            serviceName);

}

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From source file:com.baidu.upload.controller.ImageController.java

@RequestMapping("downloadImg")
public void downloadImg(Integer id, HttpServletRequest request, HttpServletResponse response) {
    Image image = imageService.get(id);
    String imgname = image.getName();
    ServletOutputStream out = null;
    try {//from  ww w  .  j a  va  2 s.  c o m
        response.reset();
        String userAgent = request.getHeader("User-Agent");
        byte[] bytes = userAgent.contains("MSIE") ? imgname.getBytes() : imgname.getBytes("UTF-8");
        // fileName.getBytes("UTF-8")?safari?
        String fileName = new String(bytes, "ISO-8859-1");
        System.out.println(fileName);
        // ?
        response.setContentType("multipart/form-data");
        response.setHeader("Content-Disposition", "attachment;fileName=" + URLEncoder.encode(imgname, "UTF-8"));
        //?blob
        byte[] contents = image.getImgblob();
        out = response.getOutputStream();
        //?
        out.write(contents);
        out.flush();
    } catch (IOException e) {
        e.printStackTrace();
    }
}

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From source file:com.ewcms.content.vote.web.ResultServlet.java

@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
    ServletOutputStream out = null;
    StringBuffer output = new StringBuffer();
    try {//w  ww . j  av a 2 s  .  co  m
        String id = req.getParameter("id");

        if (!id.equals("") && StringUtils.isNumeric(id)) {
            Long questionnaireId = new Long(id);

            ServletContext application = getServletContext();
            WebApplicationContext wac = WebApplicationContextUtils.getWebApplicationContext(application);
            QuestionnaireService questionnaireService = (QuestionnaireService) wac
                    .getBean("questionnaireService");

            String ipAddr = req.getRemoteAddr();

            output = questionnaireService.getQuestionnaireResultClientToHtml(questionnaireId,
                    getServletContext().getContextPath(), ipAddr);
        }
        out = resp.getOutputStream();
        resp.setCharacterEncoding("UTF-8");
        resp.setContentType("text/html; charset=UTF-8");
        out.write(output.toString().getBytes("UTF-8"));
        out.flush();
    } finally {
        if (out != null) {
            out.close();
            out = null;
        }
    }
}

---

From source file:org.mycore.common.content.util.MCRServletContentHelper.java

/**
 * Consumes the content and writes it to the ServletOutputStream.
 *
 * @param content  The source resource//  ww  w .  j a  v a  2s.com
 * @param out   The outputBufferSize stream to write to
 * @param range     Range the client wanted to retrieve
 */
private static void copy(final MCRContent content, final ServletOutputStream out, final Range range,
        // TODO: beautify this
        final int inputBufferSize, final int outputBufferSize) throws IOException {
    if (content.isReusable()) {
        try (ReadableByteChannel readableByteChannel = content.getReadableByteChannel()) {
            if (readableByteChannel instanceof SeekableByteChannel) {
                endCurrentTransaction();
                SeekableByteChannel seekableByteChannel = (SeekableByteChannel) readableByteChannel;
                seekableByteChannel.position(range.start);
                long bytesToCopy = range.end - range.start + 1;
                while (bytesToCopy > 0) {
                    ByteBuffer byteBuffer;
                    if (bytesToCopy > (long) MCRServletContentHelper.DEFAULT_BUFFER_SIZE) {
                        byteBuffer = ByteBuffer.allocate(MCRServletContentHelper.DEFAULT_BUFFER_SIZE);
                    } else {
                        byteBuffer = ByteBuffer.allocate((int) bytesToCopy);
                    }

                    int bytesRead = seekableByteChannel.read(byteBuffer);
                    bytesToCopy -= bytesRead;
                    out.write(byteBuffer.array());
                }
                return;
            }
        }
    }

    try (final InputStream resourceInputStream = content.getInputStream();
            final InputStream in = isInputStreamBuffered(resourceInputStream, content) ? resourceInputStream
                    : new BufferedInputStream(resourceInputStream, inputBufferSize)) {
        endCurrentTransaction();
        final IOException exception = copyRange(in, out, 0, range.start, range.end, outputBufferSize);
        if (exception != null) {
            throw exception;
        }
    }
}

---

From source file:com.seer.datacruncher.spring.ChecksTypeReadController.java

@SuppressWarnings("unchecked")
public ModelAndView handleRequest(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {

    ObjectMapper mapper = new ObjectMapper();
    ServletOutputStream out = null;
    response.setContentType("application/json");
    out = response.getOutputStream();//w  w w  .  j ava2 s .  co  m
    String idSchemaField = request.getParameter("idSchemaField");
    ReadList readList = checksTypeDao.read(-1, -1);
    List<ChecksTypeEntity> checkTypeEntites = (List<ChecksTypeEntity>) readList.getResults();
    if (StringUtils.isNotEmpty(idSchemaField)) {
        String leftPane = request.getParameter("leftPane");
        ReadList assignedReadList = checksTypeDao.readCheckTypeBySchemaFieldId(Long.parseLong(idSchemaField));
        List<ChecksTypeEntity> assignedCheckTypeEntites = (List<ChecksTypeEntity>) assignedReadList
                .getResults();
        if ("true".equalsIgnoreCase(leftPane)) {
            if (CollectionUtils.isNotEmpty(assignedCheckTypeEntites)) {
                checkTypeEntites.removeAll(assignedCheckTypeEntites);
            }
        } else {
            readList.setResults(assignedCheckTypeEntites);
        }
    }
    out.write(mapper.writeValueAsBytes(readList));
    out.flush();
    out.close();
    return null;
}

---

From source file:com.mbv.web.rest.controller.DeliveryController.java

@RequestMapping(value = "/printPick", method = RequestMethod.GET)
public String printPick(HttpServletRequest request, HttpServletResponse response) throws MbvException {
    Long degId = Long.parseLong(request.getParameter("degId"));
    List<Long> degIds = new ArrayList<Long>();
    degIds.add(degId);//ww w.  j  av a2  s  .c  o  m

    List<GoodBean> goodList = deliveryService.queryGoodByParams(degId);

    String jasperPath = request.getSession().getServletContext().getRealPath("/reports/pick.jrxml");

    Map<String, Object> parameters = new HashMap<String, Object>();
    parameters.put("SUBREPORT_DIR", jasperPath);
    List<DeliveryDataSource> list = new ArrayList<DeliveryDataSource>();
    List<PickBean> goods = new ArrayList<PickBean>();
    int i = 0;
    for (GoodBean goodBean : goodList) {
        i++;
        PickBean good = new PickBean();
        good.setId(i);
        good.setCode(goodBean.getProdNum());
        good.setName(goodBean.getBrandName() + " " + goodBean.getProductName() + " " + goodBean.getColorName()
                + " " + goodBean.getSizeName());
        good.setNum(goodBean.getQty());
        goods.add(good);
    }

    DeliveryDataSource deliverySource = new DeliveryDataSource();
    deliverySource.setOrdercode(degId + "");
    deliverySource.setTable_datas(new JRBeanCollectionDataSource(goods));
    list.add(deliverySource);

    try {
        JRDataSource dataSource = new JRBeanCollectionDataSource(list);
        JasperReport jasperReport = JasperCompileManager.compileReport(jasperPath);
        JasperPrint jasperPrint = JasperFillManager.fillReport(jasperReport, parameters, dataSource);
        request.getSession().setAttribute(ImageServlet.DEFAULT_JASPER_PRINT_SESSION_ATTRIBUTE, jasperPrint);

        byte[] bytes = JasperExportManager.exportReportToPdf(jasperPrint);

        response.setContentType("application/pdf");
        response.setContentLength(bytes.length);

        ServletOutputStream out = response.getOutputStream();
        out.write(bytes);
        out.flush();
        //end 

        //?
        deliveryService.updatePickPrintCount(degIds);

    } catch (IOException ioe) {
        System.err.println(ioe.getMessage());
        return null;
    } catch (JRException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
        return null;
    }

    return null;
}

---

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