Example usage for javax.servlet.http HttpServletResponse setContentLength

List of usage examples for javax.servlet.http HttpServletResponse setContentLength

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Introduction

In this page you can find the example usage for javax.servlet.http HttpServletResponse setContentLength.

Prototype

public void setContentLength(int len);

Source Link

Document

Sets the length of the content body in the response In HTTP servlets, this method sets the HTTP Content-Length header.

Usage

From source file:it.eng.spagobi.kpi.service.KpiExporterAction.java

/**
 * This action is called by the user who wants to export the result of a Kpi in PDF
 * /*from  w  w w .j a va 2s  . c om*/
 */

public void service(SourceBean serviceRequest, SourceBean serviceResponse) throws Exception {

    File tmpFile = null;
    logger.debug("IN");
    HttpServletRequest httpRequest = getHttpRequest();
    HttpSession session = httpRequest.getSession();

    this.freezeHttpResponse();

    try {
        // get KPI result
        List<KpiResourceBlock> listKpiBlocks = (List<KpiResourceBlock>) session.getAttribute("KPI_BLOCK");

        //List<KpiResourceBlock> listKpiBlocks=executeKpi(objectId);

        // recover BiObject Name
        Object idObject = serviceRequest.getAttribute(SpagoBIConstants.OBJECT_ID);
        if (idObject == null) {
            logger.error("Document id not found");
            return;
        }

        Integer id = Integer.valueOf(idObject.toString());
        BIObject document = DAOFactory.getBIObjectDAO().loadBIObjectById(id);
        String docName = document.getName();

        //Recover user Id
        HashedMap parameters = new HashedMap();
        String userId = null;
        Object userIdO = serviceRequest.getAttribute("user_id");
        if (userIdO != null)
            userId = userIdO.toString();

        it.eng.spagobi.engines.exporters.KpiExporter exporter = new KpiExporter();
        tmpFile = exporter.getKpiReportPDF(listKpiBlocks, document, userId);

        String outputType = "PDF";

        String mimeType = "application/pdf";

        logger.debug("Report exported succesfully");

        HttpServletResponse response = getHttpResponse();
        response.setContentType(mimeType);
        response.setHeader("Content-Disposition", "filename=\"report." + outputType + "\";");
        response.setContentLength((int) tmpFile.length());

        BufferedInputStream in = new BufferedInputStream(new FileInputStream(tmpFile));
        int b = -1;
        while ((b = in.read()) != -1) {
            response.getOutputStream().write(b);
        }
        response.getOutputStream().flush();
        in.close();
        logger.debug("OUT");

    } catch (Throwable e) {
        logger.error("An exception has occured", e);
        throw new Exception(e);
    } finally {

        tmpFile.delete();

    }
}

From source file:de.hybris.platform.b2bdocumentsfilter.B2BDocumentsSecureMediaFilter.java

private void sendData(final HttpServletResponse httpResponse, final InputStream mediaStream, final int length)
        throws IOException {
    httpResponse.setContentLength(length);

    try {//from w ww  . j av  a 2 s  . co  m
        final OutputStream out = httpResponse.getOutputStream();
        IOUtils.copyLarge(mediaStream, out);
    } finally {
        if (mediaStream != null) {
            mediaStream.close();
        }
        if (mediaStream != null) {
            mediaStream.close();
        }
    }
}

From source file:it.eng.spagobi.kpi.service.KpiXmlExporterAction.java

/**
 * This action is called by the user who wants to export the result of a Kpi in XML
 * /*from  w  w  w .  java2  s .  c o m*/
 */

public void service(SourceBean serviceRequest, SourceBean serviceResponse) throws Exception {

    File tmpFile = null;
    logger.debug("IN");
    HttpServletRequest httpRequest = getHttpRequest();
    HttpSession session = httpRequest.getSession();

    this.freezeHttpResponse();

    try {
        // get KPI result
        List<KpiResourceBlock> listKpiBlocks = (List<KpiResourceBlock>) session.getAttribute("KPI_BLOCK");
        String title = (String) session.getAttribute("TITLE");
        String subtitle = (String) session.getAttribute("SUBTITLE");
        if (title == null)
            title = "";
        if (subtitle == null)
            subtitle = "";

        // recover BiObject Name
        Object idObject = serviceRequest.getAttribute(SpagoBIConstants.OBJECT_ID);
        if (idObject == null) {
            logger.error("Document id not found");
            return;
        }

        Integer id = Integer.valueOf(idObject.toString());
        BIObject document = DAOFactory.getBIObjectDAO().loadBIObjectById(id);
        String docName = document.getName();

        //Recover user Id
        HashedMap parameters = new HashedMap();
        String userId = null;
        Object userIdO = serviceRequest.getAttribute("user_id");
        if (userIdO != null)
            userId = userIdO.toString();

        it.eng.spagobi.engines.exporters.KpiExporter exporter = new KpiExporter();
        tmpFile = exporter.getKpiExportXML(listKpiBlocks, document, userId);

        String outputType = "XML";

        String mimeType = "text/xml";

        logger.debug("Report exported succesfully");

        HttpServletResponse response = getHttpResponse();
        response.setContentType(mimeType);
        response.setHeader("Content-Disposition", "filename=\"report." + outputType + "\";");
        response.setContentLength((int) tmpFile.length());

        BufferedInputStream in = new BufferedInputStream(new FileInputStream(tmpFile));
        int b = -1;
        while ((b = in.read()) != -1) {
            response.getOutputStream().write(b);
        }
        response.getOutputStream().flush();
        in.close();
        logger.debug("OUT");

    } catch (Throwable e) {
        logger.error("An exception has occured", e);
        throw new Exception(e);
    } finally {

        tmpFile.delete();

    }
}

From source file:cc.kune.core.server.manager.file.EntityLogoDownloadManager.java

/**
 * Reply./* ww w .  ja va2  s  . co  m*/
 *
 * @param resp
 *          the resp
 * @param logo
 *          the logo
 * @param mime
 *          the mime
 * @throws IOException
 *           Signals that an I/O exception has occurred.
 */
private void reply(final HttpServletResponse resp, final byte[] logo, final String mime) throws IOException {
    resp.setContentLength(logo.length);
    resp.setContentType(mime);
    CacheUtils.setCache1Day(resp);
    resp.getOutputStream().write(logo);
}

From source file:com.enonic.cms.server.service.portal.mvc.controller.PortalRenderResponseServer.java

private void writeContent(HttpServletResponse httpResponse, byte[] content) throws IOException {
    httpResponse.setContentLength(content.length);

    OutputStream out = httpResponse.getOutputStream();
    out.write(content);/*from www.jav  a2  s  .  c o  m*/
}

From source file:org.darwinathome.server.controller.WebstartController.java

@RequestMapping("/{jarFile}.jar")
public void jarFile(@PathVariable String jarFile, HttpServletResponse response) {
    log.info("Request for " + jarFile);
    String realFileName = servletContext.getRealPath(jarFile + ".jar");
    File realFile = new File(realFileName);
    response.setContentType("application/java-archive");
    response.setContentLength((int) realFile.length());
    try {/*ww  w.  j  a v a 2 s .c o  m*/
        InputStream in = new FileInputStream(realFileName);
        OutputStream out = response.getOutputStream();
        try {
            byte[] buffer = new byte[8192];
            int read;
            while ((read = in.read(buffer)) > 0) {
                out.write(buffer, 0, read);
            }
        } finally {
            in.close();
        }
    } catch (SocketException e) {
        log.info("While writing jar: " + e.toString());
    } catch (EOFException e) {
        log.info("Broken pipe while requesting " + jarFile);
    } catch (IOException e) {
        log.warn("Problem requesting " + jarFile, e);
    }
}

From source file:com.trailmagic.image.ui.ImageManifestationController.java

@RequestMapping("/mf/by-id/{imageId}")
public ModelAndView imageById(HttpServletResponse res, @PathVariable("imageId") Long imageId) throws Exception {
    Map<String, Object> model = new HashMap<String, Object>();

    HeavyImageManifestation mf = imageManifestationRepository.getHeavyById(imageId);

    java.io.InputStream dataStream = mf.getData().getBinaryStream();
    res.setContentLength((int) mf.getData().length());

    log.debug("Passing manifestation data stream to view (type: " + dataStream.getClass() + ")");
    model.put(InputStreamView.STREAM_KEY, dataStream);
    model.put(InputStreamView.CONTENT_TYPE_KEY, mf.getFormat());
    if (mf.getName() != null) {
        model.put(InputStreamView.CONTENT_DISPOSITION_KEY, "inline; filename=" + mf.getName() + ";");
    }// ww w. j a va2 s  . co m
    return new ModelAndView(new InputStreamView(), model);
}

From source file:ar.com.fdvs.dj.output.MemoryReportWriter.java

public void writeTo(final HttpServletResponse _response) throws IOException, JRException {
    LOGGER.info("entering MemoryReportWriter.writeTo()");
    final ByteArrayOutputStream stream = new ByteArrayOutputStream();
    exporter.setParameter(JRExporterParameter.OUTPUT_STREAM, stream);
    exporter.exportReport();/*w  w w .j a  v  a 2 s.c  om*/
    _response.setContentLength(stream.size());
    copyStreams(new ByteArrayInputStream(stream.toByteArray()), _response.getOutputStream());
}

From source file:com.sshdemo.common.report.manage.web.ParameterSetAction.java

private void buildChart() {
    PrintWriter pw = null;/*from  w  w w.  j  a v  a 2s.co  m*/
    InputStream in = null;
    try {
        ChartReport chart = reportFac.findChartReportById(reportId);

        HttpServletResponse response = ServletActionContext.getResponse();
        pw = response.getWriter();

        response.reset();// 
        response.setContentLength(0);
        byte[] bytes = chartFactory.export(chart, paraMap);
        response.setContentLength(bytes.length);
        response.setHeader("Content-Type", "image/png");
        in = new ByteArrayInputStream(bytes);
        int len = 0;
        while ((len = in.read()) > -1) {
            pw.write(len);
        }
        pw.flush();
    } catch (Exception e) {
        // log.error(e.toString());
    } finally {
        if (pw != null) {
            try {
                pw.close();
                pw = null;
            } catch (Exception e) {
            }
        }
        if (in != null) {
            try {
                in.close();
                in = null;
            } catch (Exception e) {
            }
        }
    }
}

From source file:org.openmrs.module.clinicalsummary.web.controller.evaluator.EvaluatePatientController.java

/**
 * Attach the file to the servlet response body
 *
 * @param response the response//w w  w.j  a v a 2 s.  co  m
 * @param file     the file
 * @throws Exception
 */
private void attachAndPurgeFile(final HttpServletResponse response, final File file) throws Exception {
    response.setHeader("Content-Disposition", "attachment; filename=" + file.getName());
    response.setContentType(MimeConstants.MIME_PDF);
    response.setContentLength((int) file.length());

    FileCopyUtils.copy(new FileInputStream(file), response.getOutputStream());

    if (!file.delete()) {
        log.info("Deleting temporary file failed!");
    }
}