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.jugpadova.controllers.BinController.java

/**
 * This methods comes after refactoring of existing two methods: jugLogo and pictureSpeaker
 * Flushes the response//from  w w  w. ja  v a2 s  .  c  om
 * @param image image in byte[]
 * @param fileName name of file Content-Disposition header parameter
 * @param noFileName name of file in images folder in case of rendering alternate image
 * @param res
 * @throws IOException
 */
private void flushResponse(byte[] image, String fileName, String noFileName, HttpServletResponse res)
        throws IOException {
    if (image != null && image.length > 0) {
        String contentType = MimeUtil.getMimeType(image);
        if (contentType == null) {
            contentType = "image/jpeg";
        }
        String fileExtension = MimeUtil.getMinorComponent(contentType);
        res.setContentType(contentType);
        res.setContentLength(image.length);
        res.setHeader("Content-Disposition", "filename=" + fileName + "." + fileExtension);
        OutputStream out = new BufferedOutputStream(res.getOutputStream());
        out.write(image);
        out.flush();
        out.close();
    } else {
        // no logo image
        InputStream in = new BufferedInputStream(
                this.getClass().getClassLoader().getResourceAsStream("images/" + noFileName + ".jpg"));
        res.setContentType("image/jpeg");
        res.setHeader("Content-Disposition", "filename=" + noFileName + ".jpg");
        OutputStream out = new BufferedOutputStream(res.getOutputStream());
        int b = 0;
        while ((b = in.read()) != -1) {
            out.write(b);
        }
        in.close();
        out.flush();
        out.close();
    }
}

From source file:alfio.controller.api.admin.ResourceController.java

@RequestMapping(value = "/resource-organization/{organizationId}/{name:.*}", method = RequestMethod.GET)
public void outputContent(@PathVariable("organizationId") int organizationId, @PathVariable("name") String name,
        Principal principal, HttpServletResponse response) throws IOException {
    checkAccess(organizationId, principal);
    UploadedResource metadata = uploadedResourceManager.get(organizationId, name);
    try (OutputStream os = response.getOutputStream()) {
        response.setContentType(metadata.getContentType());
        response.setContentLength(metadata.getContentSize());
        uploadedResourceManager.outputResource(organizationId, name, os);
    }/*from w w  w .  ja  v  a2s.  c  o  m*/
}

From source file:com.ikon.servlet.FlagIconServlet.java

/**
 * //from w w w.ja va 2s  . c  o m
 */
public void doGet(HttpServletRequest request, HttpServletResponse response)
        throws IOException, ServletException {
    String lgId = request.getPathInfo();
    OutputStream os = null;

    try {
        if (lgId.length() > 1) {
            Language language = LanguageDAO.findByPk(lgId.substring(1)); // The first character / must be removed

            if (language != null) {
                byte[] img = SecureStore.b64Decode(new String(language.getImageContent()));
                response.setContentType(language.getImageMime());
                response.setContentLength(img.length);
                os = response.getOutputStream();
                os.write(img);
                os.flush();
            }
        }
    } catch (DatabaseException e) {
        log.error(e.getMessage(), e);
    } finally {
        IOUtils.closeQuietly(os);
    }
}

From source file:org.kuali.mobility.people.controllers.PeopleController.java

@RequestMapping(value = "/image/{hash}", method = RequestMethod.GET)
public void getImage(@PathVariable("hash") String imageKeyHash, Model uiModel, HttpServletRequest request,
        HttpServletResponse response) throws Exception {
    byte[] byteArray = (byte[]) request.getSession().getAttribute("People.Image.Email." + imageKeyHash);
    if (byteArray != null) {
        ByteArrayOutputStream baos = new ByteArrayOutputStream(byteArray.length);
        baos.write(byteArray);//from   www .j  a v  a2  s  .com
        if (baos != null) {
            ServletOutputStream sos = null;
            try {
                response.setContentLength(baos.size());
                sos = response.getOutputStream();
                baos.writeTo(sos);
                sos.flush();
            } catch (Exception e) {
                LOG.error("error creating image file", e);
            } finally {
                try {
                    baos.close();
                    sos.close();
                } catch (Exception e1) {
                    LOG.error("error closing output stream", e1);
                }
            }
        }
    }
}

From source file:eionet.webq.web.controller.FileDownloadController.java

/**
 * Writes specified content to http response.
 *
 * @param response http response//from  w  ww .j a v  a 2 s.co  m
 * @param data     content to be written to response
 */
private void writeToResponse(HttpServletResponse response, byte[] data) {
    ServletOutputStream output = null;
    try {
        response.setContentLength(data.length);
        boolean noCache = true;

        if (response.getContentType() != null && response.getContentType().startsWith("image")) {
            noCache = false;
        }
        if (noCache) {
            response.addHeader("Cache-control", "no-cache");
        }

        output = response.getOutputStream();
        IOUtils.write(data, output);
        output.flush();
    } catch (IOException e) {
        throw new RuntimeException("Unable to write response", e);
    } finally {
        IOUtils.closeQuietly(output);
    }
}

From source file:mx.gob.cfe.documentos.web.SobreController.java

private void generaReporte(String tipo, List<Sobre> diezmos, HttpServletResponse response)
        throws JRException, IOException {
    log.debug("Generando reporte {}", tipo);
    byte[] archivo = null;
    switch (tipo) {
    case "PDF":
        archivo = generaPdf(diezmos);/*from  w  w w .  j av  a  2  s  .c om*/
        response.setContentType("application/pdf");
        response.addHeader("Content-Disposition", "attachment; filename=diezmos.pdf");
        break;

    }
    if (archivo != null) {
        response.setContentLength(archivo.length);
        try (BufferedOutputStream bos = new BufferedOutputStream(response.getOutputStream())) {
            bos.write(archivo);
            bos.flush();
        }
    }

}

From source file:control.HelperServlets.GenerarPdfServlet.java

/**
 * /*from  ww  w  .ja va 2s  .co  m*/
 * Envia el archivo pdf a la vista para que sea descargado.
 * 
 * @param ruta
 * @param nombreArchivo
 * @param request
 * @param response
 * @throws FileNotFoundException
 * @throws IOException 
 */
public void enviarPDF(String ruta, String nombreArchivo, HttpServletRequest request,
        HttpServletResponse response) throws FileNotFoundException, IOException {

    //Obtenemos el archivo
    File pdfFile = new File(ruta);

    //Enviamos el pdf a la vista para que sea descargado.
    response.setContentType("application/pdf");
    response.addHeader("Content-Disposition", "attachment; filename=" + nombreArchivo);
    response.setContentLength((int) pdfFile.length());

    FileInputStream fileInputStream = new FileInputStream(pdfFile);
    OutputStream responseOutputStream = response.getOutputStream();
    int bytes;
    while ((bytes = fileInputStream.read()) != -1) {
        responseOutputStream.write(bytes);
    }
}

From source file:mx.gob.cfe.documentos.web.OficioController.java

private void generaReporte(String tipo, List<Documento> documentos, HttpServletResponse response)
        throws JRException, IOException {
    log.debug("Generando reporte {}", tipo);
    byte[] archivo = null;
    switch (tipo) {
    case "PDF":
        archivo = generaPdf(documentos);
        response.setContentType("application/pdf");
        response.addHeader("Content-Disposition", "attachment; filename=oficio.pdf");
        break;//from ww  w.  ja va 2s. c  o  m

    }
    if (archivo != null) {
        response.setContentLength(archivo.length);
        try (BufferedOutputStream bos = new BufferedOutputStream(response.getOutputStream())) {
            bos.write(archivo);
            bos.flush();
        }
    }

}

From source file:mx.gob.cfe.documentos.web.MemoController.java

private void generaReporte(String tipo, List<Documento> documentos, HttpServletResponse response)
        throws JRException, IOException {
    log.debug("Generando reporte {}", tipo);
    byte[] archivo = null;
    switch (tipo) {
    case "PDF":
        archivo = generaPdf(documentos);
        response.setContentType("application/pdf");
        response.addHeader("Content-Disposition", "attachment; filename=memo.pdf");
        break;//from  w w w  .  jav  a2s .  c o m

    }
    if (archivo != null) {
        response.setContentLength(archivo.length);
        try (BufferedOutputStream bos = new BufferedOutputStream(response.getOutputStream())) {
            bos.write(archivo);
            bos.flush();
        }
    }

}

From source file:com.ephesoft.gxt.foldermanager.server.UploadDownloadFilesServlet.java

private void downloadFile(HttpServletRequest req, HttpServletResponse response,
        String currentFileDownloadPath) {
    DataInputStream in = null;/*w w  w .ja v  a  2  s .  c o  m*/
    ServletOutputStream outStream = null;
    try {
        outStream = response.getOutputStream();
        File file = new File(currentFileDownloadPath);
        int length = 0;
        String mimetype = "application/octet-stream";
        response.setContentType(mimetype);
        response.setContentLength((int) file.length());
        String fileName = file.getName();
        response.setHeader("Content-Disposition", "attachment; filename=\"" + fileName + "\"");
        byte[] byteBuffer = new byte[1024];
        in = new DataInputStream(new FileInputStream(file));
        while ((in != null) && ((length = in.read(byteBuffer)) != -1)) {
            outStream.write(byteBuffer, 0, length);
        }
    } catch (IOException e) {
    } finally {
        if (in != null) {
            try {
                in.close();
            } catch (IOException e) {
            }
        }
        if (outStream != null) {
            try {
                outStream.flush();
            } catch (IOException e) {
            }
            try {
                outStream.close();
            } catch (IOException e) {
            }

        }
    }
}