Example usage for javax.servlet.http HttpServletResponse addHeader

Introduction

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

Prototype

public void addHeader(String name, String value);

Source Link

Document

Adds a response header with the given name and value.

Usage

From source file:cz.zcu.kiv.eegdatabase.webservices.rest.datafile.DataFileServiceController.java

/**
 * Creates new DataFile under specified experiment.
 * In response is hidden url for file download.
 *
 * @param experimentId experiment identifier
 * @param description  data file description
 * @param file         data file multipart
 * @throws RestServiceException error while creating record
 *//*from  w  w  w.ja  v a2  s. co  m*/
@RequestMapping(method = RequestMethod.POST)
@ResponseStatus(HttpStatus.CREATED)
public void create(HttpServletRequest request, HttpServletResponse response,
        @RequestParam("experimentId") int experimentId, @RequestParam("description") String description,
        @RequestParam("file") MultipartFile file) throws RestServiceException {
    try {
        int pk = dataFileService.create(experimentId, description, file);
        response.addHeader("Location", buildLocation(request, pk));
        log.debug("File upload detected: " + file.getName());
    } catch (IOException e) {
        log.error("File upload failed: " + file.getName());
        throw new RestServiceException(e);
    }
}

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From source file:com.rest4j.impl.ApiResponseImpl.java

@Override
public void outputBody(HttpServletResponse response) throws IOException {
    if (statusMessage == null)
        response.setStatus(status);/*from   w w  w  .  j  a v  a  2  s.c  o m*/
    else
        response.setStatus(status, statusMessage);
    headers.outputHeaders(response);
    if (this.response == null)
        return;
    response.addHeader("Content-type", this.response.getContentType());
    if (addEtag) {
        String etag = this.response.getETag();
        if (etag != null)
            response.addHeader("ETag", etag);
    }

    OutputStream outputStream;
    byte[] resourceBytes = ((JSONResource) this.response).getJSONObject().toString().getBytes();
    int contentLength = resourceBytes.length;
    if (compress) {
        response.addHeader("Content-encoding", "gzip");
        ByteArrayOutputStream outputByteStream = new ByteArrayOutputStream();
        GZIPOutputStream gzipOutputStream = new GZIPOutputStream(outputByteStream);
        gzipOutputStream.write(resourceBytes);
        gzipOutputStream.finish(); //     ??!
        contentLength = outputByteStream.toByteArray().length;
        gzipOutputStream.close();
        outputByteStream.close();

        outputStream = new GZIPOutputStream(response.getOutputStream());
    } else {
        outputStream = response.getOutputStream();
    }
    response.addHeader("Content-Length", String.valueOf(contentLength));

    if (this.response instanceof JSONResource) {
        ((JSONResource) this.response).setPrettify(prettify);
    }
    if (callbackFunctionName == null) {
        this.response.write(outputStream);
    } else {
        this.response.writeJSONP(outputStream, callbackFunctionName);
    }
    outputStream.close();
}

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From source file:cn.shengyuan.yun.admin.system.controller.CommonController.java

@RequestMapping(value = "/captchaImage", method = RequestMethod.GET)
public String captchaImage(HttpServletRequest request, HttpServletResponse response) throws Exception {

    response.setDateHeader("Expires", 0);
    // Set standard HTTP/1.1 no-cache headers.
    response.setHeader("Cache-Control", "no-store, no-cache, must-revalidate");
    // Set IE extended HTTP/1.1 no-cache headers (use addHeader).
    response.addHeader("Cache-Control", "post-check=0, pre-check=0");
    // Set standard HTTP/1.0 no-cache header.
    response.setHeader("Pragma", "no-cache");
    // return a jpeg
    response.setContentType("image/jpeg");
    // create the text for the image
    String capText = captchaProducer.createText();
    // store the text in the session
    request.getSession().setAttribute(Constants.KAPTCHA_SESSION_KEY, capText);
    // create the image with the text
    BufferedImage bi = captchaProducer.createImage(capText);
    ServletOutputStream out = response.getOutputStream();
    // write the data out
    ImageIO.write(bi, "jpg", out);
    try {//from  w w  w  .j  a  v a 2s  .co  m
        out.flush();
    } finally {
        out.close();
    }
    return null;

}

---

From source file:com.gsr.myschool.server.reporting.excel.ExcelController.java

@RequestMapping(method = RequestMethod.GET, value = "/excel", produces = "application/vnd.ms-excel")
@ResponseStatus(HttpStatus.OK)//from   w  w w.java2s. c om
public void generateExcel(@RequestParam String fileName, HttpServletRequest request,
        HttpServletResponse response) {
    try {
        final int buffersize = 1024;
        final byte[] buffer = new byte[buffersize];

        response.addHeader("Content-Disposition", "attachment; filename=recherche.xls");

        File file = new File(
                request.getSession().getServletContext().getRealPath("/") + TMP_FOLDER_PATH + fileName);
        InputStream inputStream = new FileInputStream(file);
        BufferedOutputStream outputStream = new BufferedOutputStream(response.getOutputStream());

        int available = 0;
        while ((available = inputStream.read(buffer)) >= 0) {
            outputStream.write(buffer, 0, available);
        }

        inputStream.close();

        outputStream.flush();
        outputStream.close();

        file.delete();
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
}

---

From source file:com.gsr.myschool.server.reporting.excel.ExcelController.java

@RequestMapping(method = RequestMethod.GET, value = "/dossierconvoques", produces = "application/vnd.ms-excel")
@ResponseStatus(HttpStatus.OK)/*w  w  w.jav a 2 s . c  om*/
public void generateDossierConvoquesExcel(@RequestParam String fileName, HttpServletRequest request,
        HttpServletResponse response) {
    try {
        final int buffersize = 1024;
        final byte[] buffer = new byte[buffersize];

        response.addHeader("Content-Disposition", "attachment; filename=dossierconvoques.xls");

        File file = new File(
                request.getSession().getServletContext().getRealPath("/") + TMP_FOLDER_PATH + fileName);
        InputStream inputStream = new FileInputStream(file);
        BufferedOutputStream outputStream = new BufferedOutputStream(response.getOutputStream());

        int available = 0;
        while ((available = inputStream.read(buffer)) >= 0) {
            outputStream.write(buffer, 0, available);
        }

        inputStream.close();

        outputStream.flush();
        outputStream.close();

        file.delete();
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
}

---

From source file:de.tu_dortmund.ub.hb_ng.middleware.MiddlewareHbNgEndpoint.java

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

    response.setHeader("Access-Control-Allow-Methods",
            this.config.getProperty(HBNGStatics.CORS_ACCESS_CONTROL_ALLOW_METHODS_IDENTIFIER));
    response.addHeader("Access-Control-Allow-Headers",
            this.config.getProperty(HBNGStatics.CORS_ACCESS_CONTROL_ALLOW_HEADERS_IDENTIFIER));
    response.setHeader("Access-Control-Allow-Origin",
            this.config.getProperty(HBNGStatics.CORS_ACCESS_CONTROL_ALLOW_ORIGIN_IDENTIFIER));
    response.setHeader("Accept", this.config.getProperty(HBNGStatics.CORS_ACCEPT_IDENTIFIER));

    response.getWriter().println();/*from  w  w  w  .j  a va  2  s  . c o m*/
}

---

From source file:edu.cornell.mannlib.vitro.webapp.filters.CachingResponseFilter.java

/**
 * Technically, if the request is not GET or HEAD, we should return 412
 * PreconditionFailed. However, we usually treat GET and POST as equivalent.
 *///  www  . jav a2 s.c  o  m
private void produceCacheHitResponse(HttpServletResponse resp, String etag) throws IOException {
    log.debug("Produce cache hit response: etag='" + etag + "'");
    resp.addHeader("ETag", etag);
    resp.addHeader("Vary", "Accept-Language");
    resp.sendError(HttpServletResponse.SC_NOT_MODIFIED, "Not Modified");
}

---

From source file:org.jasig.portlet.notice.controller.rest.JPANotificationRESTController.java

/**
 * Create a notification./*from w ww.j a va2s .  c o  m*/
 *
 * @param req the Http request
 * @param response the Http response
 * @param entry The Entry
 * @return The persisted entry
 */
@RequestMapping(method = RequestMethod.POST)
@ResponseStatus(HttpStatus.CREATED)
@ResponseBody
public EntryDTO createNotification(HttpServletRequest req, HttpServletResponse response,
        @RequestBody EntryDTO entry) {
    EntryDTO persisted = restService.createNotification(entry);

    String url = getSingleNotificationRESTUrl(req, persisted.getId());
    response.addHeader("Location", url);

    return persisted;
}

---

From source file:com.joliciel.jochre.search.web.JochreSearchServlet.java

@Override
protected void doGet(HttpServletRequest req, HttpServletResponse response)
        throws ServletException, IOException {
    try {//  w  w w  .j  a  v  a2 s. co m
        response.addHeader("Access-Control-Allow-Origin", "*");
        response.setCharacterEncoding("UTF-8");

        JochreSearchProperties props = JochreSearchProperties.getInstance(this.getServletContext());

        String command = req.getParameter("command");
        if (command == null) {
            command = "search";
        }

        if (command.equals("purge")) {
            JochreSearchProperties.purgeInstance();
            searcher = null;
            return;
        }

        Map<String, String> argMap = new HashMap<String, String>();
        @SuppressWarnings("rawtypes")
        Enumeration params = req.getParameterNames();
        while (params.hasMoreElements()) {
            String paramName = (String) params.nextElement();
            String value = req.getParameter(paramName);
            argMap.put(paramName, value);
        }

        SearchServiceLocator searchServiceLocator = SearchServiceLocator.getInstance();
        SearchService searchService = searchServiceLocator.getSearchService();

        double minWeight = 0;
        int titleSnippetCount = 1;
        int snippetCount = 3;
        int snippetSize = 80;
        boolean includeText = false;
        boolean includeGraphics = false;
        String snippetJson = null;
        Set<Integer> docIds = null;

        Set<String> handledArgs = new HashSet<String>();
        for (Entry<String, String> argEntry : argMap.entrySet()) {
            String argName = argEntry.getKey();
            String argValue = argEntry.getValue();
            argValue = URLDecoder.decode(argValue, "UTF-8");
            LOG.debug(argName + ": " + argValue);

            boolean handled = true;
            if (argName.equals("minWeight")) {
                minWeight = Double.parseDouble(argValue);
            } else if (argName.equals("titleSnippetCount")) {
                titleSnippetCount = Integer.parseInt(argValue);
            } else if (argName.equals("snippetCount")) {
                snippetCount = Integer.parseInt(argValue);
            } else if (argName.equals("snippetSize")) {
                snippetSize = Integer.parseInt(argValue);
            } else if (argName.equals("includeText")) {
                includeText = argValue.equalsIgnoreCase("true");
            } else if (argName.equals("includeGraphics")) {
                includeGraphics = argValue.equalsIgnoreCase("true");
            } else if (argName.equals("snippet")) {
                snippetJson = argValue;
            } else if (argName.equalsIgnoreCase("docIds")) {
                if (argValue.length() > 0) {
                    String[] idArray = argValue.split(",");
                    docIds = new HashSet<Integer>();
                    for (String id : idArray)
                        docIds.add(Integer.parseInt(id));
                }
            } else {
                handled = false;
            }
            if (handled) {
                handledArgs.add(argName);
            }
        }
        for (String argName : handledArgs)
            argMap.remove(argName);

        if (searcher == null) {
            String indexDirPath = props.getIndexDirPath();
            File indexDir = new File(indexDirPath);
            LOG.info("Index dir: " + indexDir.getAbsolutePath());
            searcher = searchService.getJochreIndexSearcher(indexDir);
        }

        if (command.equals("search")) {
            response.setContentType("text/plain;charset=UTF-8");
            PrintWriter out = response.getWriter();
            JochreQuery query = searchService.getJochreQuery(argMap);
            searcher.search(query, out);
            out.flush();
        } else if (command.equals("highlight") || command.equals("snippets")) {
            response.setContentType("text/plain;charset=UTF-8");
            PrintWriter out = response.getWriter();
            JochreQuery query = searchService.getJochreQuery(argMap);
            if (docIds == null)
                throw new RuntimeException("Command " + command + " requires docIds");

            HighlightServiceLocator highlightServiceLocator = HighlightServiceLocator
                    .getInstance(searchServiceLocator);
            HighlightService highlightService = highlightServiceLocator.getHighlightService();
            Highlighter highlighter = highlightService.getHighlighter(query, searcher.getIndexSearcher());
            HighlightManager highlightManager = highlightService
                    .getHighlightManager(searcher.getIndexSearcher());
            highlightManager.setDecimalPlaces(query.getDecimalPlaces());
            highlightManager.setMinWeight(minWeight);
            highlightManager.setIncludeText(includeText);
            highlightManager.setIncludeGraphics(includeGraphics);
            highlightManager.setTitleSnippetCount(titleSnippetCount);
            highlightManager.setSnippetCount(snippetCount);
            highlightManager.setSnippetSize(snippetSize);

            Set<String> fields = new HashSet<String>();
            fields.add("text");

            if (command.equals("highlight"))
                highlightManager.highlight(highlighter, docIds, fields, out);
            else
                highlightManager.findSnippets(highlighter, docIds, fields, out);
            out.flush();
        } else if (command.equals("imageSnippet")) {
            String mimeType = "image/png";
            response.setContentType(mimeType);
            if (snippetJson == null)
                throw new RuntimeException("Command " + command + " requires a snippet");
            Snippet snippet = new Snippet(snippetJson);

            if (LOG.isDebugEnabled()) {
                Document doc = searcher.getIndexSearcher().doc(snippet.getDocId());
                LOG.debug("Snippet in " + doc.get("id") + ", path: " + doc.get("path"));
            }

            HighlightServiceLocator highlightServiceLocator = HighlightServiceLocator
                    .getInstance(searchServiceLocator);
            HighlightService highlightService = highlightServiceLocator.getHighlightService();
            HighlightManager highlightManager = highlightService
                    .getHighlightManager(searcher.getIndexSearcher());
            ImageSnippet imageSnippet = highlightManager.getImageSnippet(snippet);
            OutputStream os = response.getOutputStream();
            ImageOutputStream ios = ImageIO.createImageOutputStream(os);
            BufferedImage image = imageSnippet.getImage();
            ImageReader imageReader = ImageIO.getImageReadersByMIMEType(mimeType).next();
            ImageWriter imageWriter = ImageIO.getImageWriter(imageReader);
            imageWriter.setOutput(ios);
            imageWriter.write(image);
            ios.flush();
        } else {
            throw new RuntimeException("Unknown command: " + command);
        }
    } catch (RuntimeException e) {
        LogUtils.logError(LOG, e);
        throw e;
    }
}

---

From source file:com.stormpath.spring.config.StormpathAuthenticationEntryPoint.java

@Override
public void commence(HttpServletRequest request, HttpServletResponse response,
        AuthenticationException authException) throws IOException, ServletException {
    log.debug("Pre-authenticated entry point called. Rejecting access");
    response.setStatus(HttpServletResponse.SC_UNAUTHORIZED);
    String bearerRealm = String.format("Bearer realm=\"%s\"", applicationName);
    response.addHeader("WWW-Authenticate", bearerRealm);
    if (isJsonPreferred(request, response)) {
        response.setContentType(MediaType.APPLICATION_JSON_VALUE);
        om.writeValue(response.getOutputStream(),
                new Error(ErrorConstants.ERR_ACCESS_DENIED, authException.getMessage()));
    } else {//from  w  ww  .  j  av  a2s.c om
        sendRedirect(request, response);
    }
}

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