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:com.sshdemo.common.report.manage.web.RepositoryAction.java

public void download() {
    PrintWriter pw = null;/*from   w  w w  .jav a  2 s . c o m*/
    InputStream in = null;
    try {
        if (getRepositoryId() != null) {
            Repository repository = reportFac.findRepositoryById(getRepositoryId());
            String type = repository.getType();
            byte[] bytes = repository.getEntity();

            HttpServletResponse response = ServletActionContext.getResponse();
            response.setContentLength(bytes.length);

            if (type.toLowerCase().equals("pdf")) {
                response.setContentType("application/pdf");
            } else if (type.toLowerCase().equals("png")) {
                response.setContentType("image/png");
            }

            pw = response.getWriter();
            in = new ByteArrayInputStream(bytes);
            int len = 0;
            while ((len = in.read()) > -1) {
                pw.write(len);
            }
            pw.flush();
        }
    } catch (IOException e) {
        e.printStackTrace();
    } 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:com.nominanuda.springmvc.HttpEntityView.java

public void render(Map<String, ?> model, HttpServletRequest request, HttpServletResponse response)
        throws Exception {
    response.setContentType(getContentType());
    InputStream is = entity.getContent();
    byte[] b = io.readAndClose(is);
    response.setContentLength(b.length);
    response.getOutputStream().write(b);
}

From source file:org.efs.openreports.actions.ReportViewerAction.java

public String execute() {
    JasperPrint jasperPrint = (JasperPrint) ActionContext.getContext().getSession().get(ORStatics.JASPERPRINT);

    report = (Report) ActionContext.getContext().getSession().get(ORStatics.REPORT);

    if (jasperPrint != null && jasperPrint.getPages() != null) {
        pageCount = jasperPrint.getPages().size();
    }// w  ww  . j  a va 2s .c om

    if (!"image".equals(submitType))
        return SUCCESS;

    byte[] imageData = null;

    if (jasperPrint != null) {
        try {
            BufferedImage image = (BufferedImage) JasperPrintManager.printPageToImage(jasperPrint,
                    pageIndex - 1, zoom);
            imageData = new SunPNGEncoderAdapter().encode(image);
        } catch (Exception e) {
            addActionError(e.getMessage());
            log.error(e.toString());
        }
    }

    if (imageData != null) {

        HttpServletResponse response = ServletActionContext.getResponse();

        try {
            response.setContentLength(imageData.length);
            ServletOutputStream ouputStream = response.getOutputStream();
            ouputStream.write(imageData, 0, imageData.length);
            ouputStream.flush();
            ouputStream.close();
        } catch (IOException ioe) {
            log.warn(ioe.toString());
        }
    }

    return NONE;
}

From source file:com.asual.summer.sample.web.TechnologyController.java

@RequestMapping("/image/{value}")
public void image(@PathVariable("value") String value, HttpServletResponse response) throws IOException {
    Image image = Technology.findImage(value);
    if (image != null) {
        response.setContentLength(image.getBytes().length);
        response.setContentType(image.getContentType());
        response.getOutputStream().write(image.getBytes());
    } else {//w w w . j  a v  a  2s .co m
        response.setStatus(HttpServletResponse.SC_NOT_FOUND);
    }
    response.getOutputStream().flush();
    response.getOutputStream().close();
}

From source file:org.ktunaxa.referral.server.mvc.InMemoryCmisDocumentView.java

@Override
protected void renderMergedOutputModel(Map<String, Object> model, HttpServletRequest request,
        HttpServletResponse response) throws Exception {
    Document doc = cmisService.getById((String) model.get(DOCUMENT_ID));
    response.setContentType(doc.getContentStreamMimeType());
    response.setContentLength((int) doc.getContentStreamLength());
    if (SAVE.equals((String) model.get(TYPE))) {
        response.setHeader("Content-Disposition", "attachment; filename=\"" + doc.getName() + "\"");
    }/*from  w  w  w.  j  a  va2  s . c o m*/
    IOUtils.copy(doc.getContentStream().getStream(), response.getOutputStream());
}

From source file:edu.wisc.web.filter.ShallowEtagHeaderFilter.java

private void copyBodyToResponse(byte[] body, HttpServletResponse response) throws IOException {
    response.setContentLength(body.length);
    if (body.length > 0) {
        FileCopyUtils.copy(body, response.getOutputStream());
    }/*from  w w w  . ja va 2  s.  c  o m*/
}

From source file:com.geemvc.view.DefaultStreamViewHandler.java

@Override
public void handle(Result result, RequestContext requestCtx) throws ServletException, IOException {
    HttpServletResponse response = (HttpServletResponse) requestCtx.getResponse();

    if (result.length() > 0) {
        response.setContentLength((int) result.length());
    }/*w  w w  . java  2s . c  om*/

    if (result.filename() != null) {
        if (result.attachment()) {
            response.setHeader("Content-disposition", "attachment; filename=" + result.filename());
        } else {
            response.setHeader("Content-disposition", "filename=" + result.filename());
        }
    }

    if (result.contentType() != null) {
        response.setContentType(result.contentType());
    }

    if (result.rangeSupport()) {
        // TODO: range-support
    }

    if (result.result() != null) {
        RequestHandler requestHandler = requestCtx.requestHandler();
        Method handlerMethod = requestHandler.handlerMethod();

        if (configuration.isJaxRsEnabled()) {
            MessageBodyWriter mbw = injector.getInstance(Providers.class).getMessageBodyWriter(
                    handlerMethod.getReturnType(), handlerMethod.getGenericReturnType(),
                    handlerMethod.getAnnotations(), MediaType.valueOf(response.getContentType()));

            if (mbw != null
                    && mbw.isWriteable(handlerMethod.getReturnType(), handlerMethod.getGenericReturnType(),
                            handlerMethod.getAnnotations(), MediaType.valueOf(response.getContentType()))) {
                MultivaluedMap<String, Object> httpResponseHeaders = injector.getInstance(MultivaluedMap.class);

                mbw.writeTo(result.result(), handlerMethod.getReturnType(),
                        handlerMethod.getGenericReturnType(), handlerMethod.getAnnotations(),
                        MediaType.valueOf(response.getContentType()), httpResponseHeaders,
                        response.getOutputStream());
            } else {
                response.sendError(HttpServletResponse.SC_UNSUPPORTED_MEDIA_TYPE);
            }
        } else {
            log.info(
                    "Unable to convert the result object of type '{}' to the media type '{}' as the JAX-RS runtime has been disabled.",
                    () -> result.result().getClass().getName(), () -> response.getContentType());
            response.sendError(HttpServletResponse.SC_UNSUPPORTED_MEDIA_TYPE);
        }

        return;
    }

    if (result.stream() != null) {
        IOUtils.copy(result.stream(), response.getOutputStream());
    } else if (result.reader() != null) {
        IOUtils.copy(result.reader(), response.getOutputStream(), result.characterEncoding());
    } else if (result.output() != null) {
        response.getOutputStream().write(result.output().getBytes());
    } else {
        throw new IllegalStateException(
                "You must provide either a stream, a reader or a string output when using Results.stream(). ");
    }
}

From source file:com.novartis.pcs.ontology.rest.servlet.SubtermsServlet.java

@Override
protected void doPut(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
    resp.setStatus(HttpServletResponse.SC_METHOD_NOT_ALLOWED);
    resp.setContentLength(0);
}

From source file:ee.ria.xroad.proxy.testsuite.testcases.ServerProxyConnectionAborted2.java

@Override
public AbstractHandler getServerProxyHandler() {
    return new AbstractHandler() {
        @Override//from   www  .  j  a  v  a2  s. c  o  m
        public void handle(String target, Request baseRequest, HttpServletRequest request,
                HttpServletResponse response) throws IOException {
            // Read all of the request.
            IOUtils.readLines(request.getInputStream());

            response.setContentType("text/xml");
            response.setContentLength(1000);
            response.getOutputStream().close();
            response.flushBuffer();
            baseRequest.setHandled(true);
        }
    };
}

From source file:eu.planets_project.pp.plato.util.Downloader.java

/**
 * Starts a client side download. All information provided by parameters.
 *
 * @param file data file contains/*from   w  w w .j a  v  a2  s.c o  m*/
 * @param fileName name of the file (e.g. report.pdf)
 * @param contentType mime type of the content to be downloaded
 */
public void download(byte[] file, String fileName, String contentType) {
    FacesContext facesContext = FacesContext.getCurrentInstance();
    ExternalContext context = facesContext.getExternalContext();

    HttpServletResponse response = (HttpServletResponse) context.getResponse();
    response.setHeader("Content-Disposition", "attachment;filename=\"" + fileName + "\"");
    response.setContentLength((int) file.length);
    response.setContentType(contentType);

    try {
        ByteArrayInputStream in = new ByteArrayInputStream(file);
        OutputStream out = response.getOutputStream();

        // Copy the contents of the file to the output stream
        byte[] buf = new byte[1024];
        int count;
        while ((count = in.read(buf)) >= 0) {
            out.write(buf, 0, count);
        }
        in.close();
        out.flush();
        out.close();
        facesContext.responseComplete();
    } catch (IOException ex) {
        log.error("Error in downloadFile: " + ex.getMessage());
        FacesMessages.instance().add(FacesMessage.SEVERITY_ERROR, "Download couldn't be executed");
        ex.printStackTrace();
    }
}