Example usage for javax.servlet.http HttpServletResponse setContentLengthLong

Introduction

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

Prototype

public void setContentLengthLong(long 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:org.eclipse.vorto.repository.web.ModelGenerationController.java

@ApiOperation(value = "Generate code for a specified platform")
@RequestMapping(value = "/{namespace}/{name}/{version:.+}/{serviceKey}", method = RequestMethod.GET)
public void generate(@ApiParam(value = "Namespace", required = true) final @PathVariable String namespace,
        @ApiParam(value = "Name", required = true) final @PathVariable String name,
        @ApiParam(value = "Version", required = true) final @PathVariable String version,
        @ApiParam(value = "Service Key - Platform", required = true) @PathVariable String serviceKey,
        @ApiParam(value = "Response", required = true) final HttpServletResponse response) {
    Objects.requireNonNull(namespace, "namespace must not be null");
    Objects.requireNonNull(name, "name must not be null");
    Objects.requireNonNull(version, "version must not be null");

    GeneratedOutput generatedOutput = generatorService.generate(new ModelId(name, namespace, version),
            serviceKey);//from w  ww. ja  v  a2 s.c o  m
    response.setHeader(CONTENT_DISPOSITION, ATTACHMENT_FILENAME + generatedOutput.getFileName());
    response.setContentLengthLong(generatedOutput.getSize());
    response.setContentType(APPLICATION_OCTET_STREAM);
    try {
        IOUtils.copy(new ByteArrayInputStream(generatedOutput.getContent()), response.getOutputStream());
        response.flushBuffer();
    } catch (IOException e) {
        throw new RuntimeException("Error copying file.", e);
    }
}

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From source file:eu.creatingfuture.propeller.webLoader.servlets.WebRequestServlet.java

@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
    resp.addHeader("Access-Control-Allow-Origin", "*");
    String getUrl = req.getParameter("get");
    if (getUrl == null) {
        resp.sendError(400);//  w w w  .j a  v  a2s .  com
        return;
    }
    logger.info(getUrl);
    URL url;
    HttpURLConnection connection = null;
    try {
        url = new URL(getUrl);
        connection = (HttpURLConnection) url.openConnection();
        connection.setRequestMethod("GET");
        connection.setUseCaches(false);

        resp.setContentType(connection.getContentType());
        resp.setContentLengthLong(connection.getContentLengthLong());
        logger.log(Level.INFO, "Content length: {0} response code: {1} content type: {2}", new Object[] {
                connection.getContentLengthLong(), connection.getResponseCode(), connection.getContentType() });
        resp.setStatus(connection.getResponseCode());
        IOUtils.copy(connection.getInputStream(), resp.getOutputStream());
    } catch (IOException ioe) {
        resp.sendError(500, ioe.getMessage());
    } finally {
        if (connection != null) {
            connection.disconnect();
        }
    }
}

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From source file:org.springframework.web.servlet.resource.ResourceHttpRequestHandler.java

/**
 * Set headers on the given servlet response.
 * Called for GET requests as well as HEAD requests.
 * @param response current servlet response
 * @param resource the identified resource (never {@code null})
 * @param mediaType the resource's media type (never {@code null})
 * @throws IOException in case of errors while setting the headers
 */// w  ww  . jav  a 2s . c  o m
protected void setHeaders(HttpServletResponse response, Resource resource, @Nullable MediaType mediaType)
        throws IOException {

    long length = resource.contentLength();
    if (length > Integer.MAX_VALUE) {
        response.setContentLengthLong(length);
    } else {
        response.setContentLength((int) length);
    }

    if (mediaType != null) {
        response.setContentType(mediaType.toString());
    }
    if (resource instanceof HttpResource) {
        HttpHeaders resourceHeaders = ((HttpResource) resource).getResponseHeaders();
        for (Map.Entry<String, List<String>> entry : resourceHeaders.entrySet()) {
            String headerName = entry.getKey();
            boolean first = true;
            for (String headerValue : entry.getValue()) {
                if (first) {
                    response.setHeader(headerName, headerValue);
                } else {
                    response.addHeader(headerName, headerValue);
                }
                first = false;
            }
        }
    }
    response.setHeader(HttpHeaders.ACCEPT_RANGES, "bytes");
}

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From source file:com.formkiq.core.api.FeedsController.java

/**
 * Gets a Feed and transfers XML to JSON.
 * @param request {@link HttpServletRequest}
 * @param response {@link HttpServletResponse}
 * @throws IOException IOException//from  www.j  a  v a  2 s .  c  om
 * @throws InvalidFeedUrlException InvalidFeedUrlException
 */
@RequestMapping(value = API_FEEDS_GET)
public void get(final HttpServletRequest request, final HttpServletResponse response)
        throws IOException, InvalidFeedUrlException {

    getApiVersion(request);

    Map<String, String[]> map = request.getParameterMap();

    String url = getParameter(map, "url", true).trim();

    ResponseEntity<String> entity = this.feedService.get(url);

    String body = entity.getBody();

    if (this.feedService.isXMLContentType(entity.getHeaders())) {

        body = this.feedService.toJSONFromXML(body);

    } else if (!this.feedService.isJSONContentType(entity.getHeaders())) {

        List<String> contentTypes = entity.getHeaders().get("content-type");
        String ct = !contentTypes.isEmpty() ? contentTypes.get(0) : "unknown content type";
        throw new InvalidFeedUrlException("Invalid content-type " + ct + " for " + url);
    }

    response.setContentType("application/json");
    response.setContentLengthLong(body.length());
    IOUtils.write(body, response.getOutputStream(), Strings.CHARSET_UTF8);
}

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From source file:com.formkiq.core.service.workflow.WorkflowServiceImpl.java

@Override
public ModelAndView actions(final HttpServletRequest request, final HttpServletResponse response)
        throws IOException {

    WebFlow flow = FlowManager.get(request);

    Map<String, String[]> parameterMap = request.getParameterMap();

    if (parameterMap.containsKey("_eventId_print")) {
        return getModelAndView(flow, DEFAULT_PDF_VIEW);
    }//ww w .  ja v a2 s  .c o  m

    byte[] bytes = generatePDF(request, flow);

    response.setContentType("application/pdf");
    response.setContentLengthLong(bytes.length);
    IOUtils.write(bytes, response.getOutputStream());
    response.getOutputStream().flush();

    return null;
}

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From source file:org.cirdles.webServices.ambapo.AmbapoServlet.java

/**
 * Handles the HTTP <code>POST</code> method.
 *
 * @param request servlet request/*w  w  w  .j  a va  2 s .  co  m*/
 * @param response servlet response
 * @throws ServletException if a servlet-specific error occurs
 * @throws IOException if an I/O error occurs
 */
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    response.setContentType("text/csv");
    response.setHeader("Content-Disposition", "attachment; filename=converted-file.csv");

    String conversionType = ServletRequestUtils.getStringParameter(request, "conversionType", "LatLongtoUTM");
    Part filePart = request.getPart("ambapoFile");

    String fileName = Paths.get(filePart.getSubmittedFileName()).getFileName().toString();
    InputStream fileStream = filePart.getInputStream();
    File myFile = new File(fileName);

    AmbapoFileHandlerService handler = new AmbapoFileHandlerService();
    String fileExt = FilenameUtils.getExtension(fileName);

    try {
        File convertedFile = null;
        if (fileExt.equals("csv")) {
            convertedFile = handler.convertFile(fileName, fileStream, conversionType).toFile();
            response.setContentLengthLong(convertedFile.length());
            IOUtils.copy(new FileInputStream(convertedFile), response.getOutputStream());
        }

        else {
        }

    } catch (Exception e) {
        System.err.println(e);
    }

}

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From source file:foam.nanos.servlet.ImageServlet.java

@Override
protected void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
    // get path//  ww w .  ja v a2 s.  c  o m
    String cwd = System.getProperty("user.dir");
    String[] paths = getServletConfig().getInitParameter("paths").split(":");
    String reqPath = req.getRequestURI().replaceFirst("/?images/?", "/");

    // enumerate each file path
    for (int i = 0; i < paths.length; i++) {
        File src = new File(cwd + "/" + paths[i] + reqPath);
        if (src.isFile() && src.canRead()
                && src.getCanonicalPath().startsWith(new File(paths[i]).getCanonicalPath())) {
            String ext = EXTS.get(FilenameUtils.getExtension(src.getName()));
            try (BufferedInputStream is = new BufferedInputStream(new FileInputStream(src))) {
                resp.setContentType(!SafetyUtil.isEmpty(ext) ? ext : DEFAULT_EXT);
                resp.setHeader("Content-Disposition",
                        "filename=\"" + StringEscapeUtils.escapeHtml4(src.getName()) + "\"");
                resp.setContentLengthLong(src.length());

                IOUtils.copy(is, resp.getOutputStream());
                return;
            }
        }
    }

    resp.sendError(resp.SC_NOT_FOUND);
}

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From source file:sg.ncl.DataController.java

private ResponseExtractor<Void> getResponseExtractor(final HttpServletResponse httpResponse) {
    return response -> {
        String content = response.getHeaders().get("Content-Disposition").get(0);
        httpResponse.setContentType("application/octet-stream");
        httpResponse.setContentLengthLong(Long.parseLong(response.getHeaders().get("Content-Length").get(0)));
        httpResponse.setHeader("Content-Disposition", content);
        IOUtils.copy(response.getBody(), httpResponse.getOutputStream());
        httpResponse.flushBuffer();//from   w  w w  .  ja v  a2  s  . c o m
        return null;
    };
}

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From source file:com.nms.mediastore.servlet.VideoServlet.java

/**
 * Handles the HTTP <code>GET</code> method.
 *
 * @param request servlet request//from  w w w  . j  a  va 2s .c om
 * @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 {
    String uuid = request.getParameter("id");
    if (Validator.isNotNull(uuid)) {
        VideoLink link;
        FileEntry videoFile = null;
        try {
            if (uuid.equals(DEFAULT_ID)) {
                Video video = videoService.getDefault();
                videoFile = video.getVideoFile();
            } else {
                link = linkService.findByUUID(uuid);
                videoFile = link.getVideo().getVideoFile();
            }
        } catch (Exception e) {
            LOG.log(Level.WARNING, "Video link not found or expirated uuid = {0} and ERROR: {1}",
                    new Object[] { uuid, e.toString() });
        }

        if (videoFile != null && Validator.isNotNull(videoFile.getUri())) {
            File in = new File(AppConfig.getFileStorePath() + videoFile.getUri());
            if (in.exists()) {
                response.setContentType(videoFile.getContentType());
                response.setContentLengthLong(videoFile.getSize());
                response.setHeader("Content-Disposition",
                        "attachment;filename=\"" + videoFile.getName() + "\"");
                try (OutputStream out = response.getOutputStream()) {
                    FileUtils.copyFile(in, out);
                }
            } else {
                LOG.log(Level.WARNING, "Video file not found = {0}",
                        new Object[] { AppConfig.getFileStorePath() + videoFile.getUri() });
            }
        } else {
            LOG.log(Level.WARNING, "Video file not found = {0}", new Object[] { uuid });
        }
    }
}

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From source file:de.codecentric.boot.admin.zuul.filters.post.SendResponseFilter.java

private void addResponseHeaders() {
    RequestContext context = RequestContext.getCurrentContext();
    HttpServletResponse servletResponse = context.getResponse();
    List<Pair<String, String>> zuulResponseHeaders = context.getZuulResponseHeaders();
    @SuppressWarnings("unchecked")
    List<String> rd = (List<String>) RequestContext.getCurrentContext().get("routingDebug");
    if (rd != null) {
        StringBuilder debugHeader = new StringBuilder();
        for (String it : rd) {
            debugHeader.append("[[[" + it + "]]]");
        }/*from   www .jav a 2s . c o  m*/
        if (INCLUDE_DEBUG_HEADER.get()) {
            servletResponse.addHeader("X-Zuul-Debug-Header", debugHeader.toString());
        }
    }
    if (zuulResponseHeaders != null) {
        for (Pair<String, String> it : zuulResponseHeaders) {
            servletResponse.addHeader(it.first(), it.second());
        }
    }
    RequestContext ctx = RequestContext.getCurrentContext();
    Long contentLength = ctx.getOriginContentLength();
    // Only inserts Content-Length if origin provides it and origin response is not
    // gzipped
    if (SET_CONTENT_LENGTH.get()) {
        if (contentLength != null && !ctx.getResponseGZipped()) {
            servletResponse.setContentLengthLong(contentLength);
        }
    }
}

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