Example usage for org.springframework.web.context.request WebRequest checkNotModified

List of usage examples for org.springframework.web.context.request WebRequest checkNotModified

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Introduction

In this page you can find the example usage for org.springframework.web.context.request WebRequest checkNotModified.

Prototype

boolean checkNotModified(String etag);

Source Link

Document

Check whether the requested resource has been modified given the supplied ETag (entity tag), as determined by the application.

Usage

From source file:ru.org.linux.topic.TopicController.java

private static boolean checkLastModified(WebRequest webRequest, Topic message) {
    try {/*  w  w w. j  a  v  a 2  s .com*/
        return webRequest.checkNotModified(message.getLastModified().getTime());
    } catch (IllegalArgumentException ignored) {
        return false;
    }
}

From source file:org.ng200.openolympus.controller.TranslationController.java

@RequestMapping(value = "/translation")
public Map<String, String> strings(WebRequest webRequest, @RequestParam("lang") String lang) {
    if (webRequest.checkNotModified(this.messageSource.getLastModified())) {
        return null;
    }//from  w  w  w. ja v  a  2  s . c  om
    final HashMap<String, String> map = new HashMap<>();
    for (final Entry<Object, Object> e : this.messageSource.getKeys(new Locale(lang)).entrySet()) {
        map.put(e.getKey().toString(), e.getValue().toString());
    }
    return map;
}

From source file:org.craftercms.core.controller.rest.ContentStoreRestController.java

private boolean checkNotModified(long lastModifiedTimestamp, WebRequest request, HttpServletResponse response) {
    response.setHeader(CACHE_CONTROL_HEADER_NAME, MUST_REVALIDATE_HEADER_VALUE);

    return request.checkNotModified(lastModifiedTimestamp);
}

From source file:github.priyatam.springrest.resource.PolicyResource.java

@RequestMapping(method = RequestMethod.GET, value = "/policy/{policyNum}")
@ResponseBody//w ww  .j  a v  a2s.com
public ResponseEntity<Policy> get(@PathVariable String policyNum, WebRequest request) {
    logger.debug("Retrieving Policy :" + policyNum);

    if (request.checkNotModified(resourceHelper.lastModified(policyNum))) {
        // shortcut exit - no further processing necessary
        return null;
    }

    // Load Policy
    Policy policy = persistenceHelper.loadPolicy(policyNum);
    if (policy == null) {
        logger.warn("No Policy found");
        return new ResponseEntity<Policy>(null, new HttpHeaders(), HttpStatus.NOT_FOUND);
    }

    // Convert to Restful Resource, update ETag and HATEOAS references
    responseBuilder.toPolicy(policy);

    return new ResponseEntity<Policy>(policy, HttpStatus.OK);
}

From source file:com.goldengekko.meetr.web.EndpointsController.java

@RestReturn(value = JEndpoints.class, code = { @RestCode(code = 200, description = "OK", message = "OK") })
@RequestMapping(method = RequestMethod.GET)
@ResponseBody/*w w  w .j a  va2s. c  o m*/
public JEndpoints getEndpoints(WebRequest webRequest) throws ParseException {
    Date updatedDate = FORMATTER.parse(updatedYYYYMMddHHmmss);
    final JEndpoints body = new JEndpoints(apiUrl, signinUrl, oauthUrl, updatedDate.getTime());

    final long lastModified = body.getUpdatedDate();
    if (webRequest.checkNotModified(lastModified)) {
        // shortcut exit - no further processing necessary
        return null;
    }

    return body;
}

From source file:com.orangeandbronze.jblubble.sample.PersonController.java

@RequestMapping(method = RequestMethod.GET, value = "/{id}/photo")
public void servePhoto(@PathVariable("id") String id, WebRequest webRequest, HttpServletResponse response)
        throws BlobstoreException, IOException {
    Person person = getPersonById(id);//w  w  w . j  a  va  2  s. co m
    if (person != null) {
        BlobKey photoId = person.getPhotoId();
        if (photoId != null) {
            BlobInfo blobInfo = blobstoreService.getBlobInfo(photoId);
            if (webRequest.checkNotModified(blobInfo.getDateCreated().getTime())) {
                return;
            }
            response.setContentType(blobInfo.getContentType());
            // In Servlet API 3.1, use #setContentLengthLong(long)
            response.setContentLength((int) blobInfo.getSize());
            response.setDateHeader("Last-Modified", blobInfo.getDateCreated().getTime());
            // response.addHeader("Cache-Control", "must-revalidate, max-age=3600");
            blobstoreService.serveBlob(photoId, response.getOutputStream());
            return;
        }
    }
    throw new IllegalArgumentException();
}

From source file:bjerne.gallery.controller.GalleryController.java

/**
 * Method used to return the binary of a gallery file (
 * {@link GalleryFile#getActualFile()} ). This method handles 304 redirects
 * (if file has not changed) and range headers if requested by browser. The
 * range parts is particularly important for videos. The correct response
 * status is set depending on the circumstances.
 * <p>//from  w  w  w.j a  v  a 2s. c o m
 * NOTE: the range logic should NOT be considered a complete implementation
 * - it's a bare minimum for making requests for byte ranges work.
 * 
 * @param request
 *            Request
 * @param galleryFile
 *            Gallery file
 * @return The binary of the gallery file, or a 304 redirect, or a part of
 *         the file.
 * @throws IOException
 *             If there is an issue accessing the binary file.
 */
private ResponseEntity<InputStreamResource> returnResource(WebRequest request, GalleryFile galleryFile)
        throws IOException {
    LOG.debug("Entering returnResource()");
    if (request.checkNotModified(galleryFile.getActualFile().lastModified())) {
        return null;
    }
    File file = galleryFile.getActualFile();
    String contentType = galleryFile.getContentType();
    String rangeHeader = request.getHeader(HttpHeaders.RANGE);
    long[] ranges = getRangesFromHeader(rangeHeader);
    long startPosition = ranges[0];
    long fileTotalSize = file.length();
    long endPosition = ranges[1] != 0 ? ranges[1] : fileTotalSize - 1;
    long contentLength = endPosition - startPosition + 1;
    LOG.debug("contentLength: {}, file length: {}", contentLength, fileTotalSize);

    LOG.debug("Returning resource {} as inputstream. Start position: {}", file.getCanonicalPath(),
            startPosition);
    InputStream boundedInputStream = new BoundedInputStream(new FileInputStream(file), endPosition + 1);

    InputStream is = new BufferedInputStream(boundedInputStream, 65536);
    InputStreamResource inputStreamResource = new InputStreamResource(is);
    HttpHeaders responseHeaders = new HttpHeaders();
    responseHeaders.setContentLength(contentLength);
    responseHeaders.setContentType(MediaType.valueOf(contentType));
    responseHeaders.add(HttpHeaders.ACCEPT_RANGES, "bytes");
    if (StringUtils.isNotBlank(rangeHeader)) {
        is.skip(startPosition);
        String contentRangeResponseHeader = "bytes " + startPosition + "-" + endPosition + "/" + fileTotalSize;
        responseHeaders.add(HttpHeaders.CONTENT_RANGE, contentRangeResponseHeader);
        LOG.debug("{} was not null but {}. Adding header {} to response: {}", HttpHeaders.RANGE, rangeHeader,
                HttpHeaders.CONTENT_RANGE, contentRangeResponseHeader);
    }
    HttpStatus status = (startPosition == 0 && contentLength == fileTotalSize) ? HttpStatus.OK
            : HttpStatus.PARTIAL_CONTENT;
    LOG.debug("Returning {}. Status: {}, content-type: {}, {}: {}, contentLength: {}", file, status,
            contentType, HttpHeaders.CONTENT_RANGE, responseHeaders.get(HttpHeaders.CONTENT_RANGE),
            contentLength);
    return new ResponseEntity<InputStreamResource>(inputStreamResource, responseHeaders, status);
}

From source file:org.focusns.web.modules.profile.ProjectUserWidget.java

@RequestMapping("/user-avatar/download")
public ResponseEntity<byte[]> doAvatar(@RequestParam Long userId, @RequestParam(required = false) Boolean temp,
        @RequestParam(required = false) Integer width, @RequestParam(required = false) Integer height,
        WebRequest webRequest) throws IOException {
    ////  w  ww  .  j  a  va  2  s  .  c  o  m
    boolean notModified = false;
    InputStream inputStream = null;
    //
    ProjectUser projectUser = projectUserService.getProjectUser(userId);
    Object[] avatarCoordinates = CoordinateHelper.getAvatarCoordinates(projectUser);
    if (temp != null && temp.booleanValue()) {
        long lastModified = storageService.checkTempResource(avatarCoordinates);
        if (lastModified > 0 && webRequest.checkNotModified(lastModified)) {
            notModified = true;
        } else {
            inputStream = storageService.loadTempResource(avatarCoordinates);
        }
    } else if (width == null || height == null) {
        long lastModified = storageService.checkResource(avatarCoordinates);
        if (lastModified > 0 && webRequest.checkNotModified(lastModified)) {
            notModified = true;
        } else {
            inputStream = storageService.loadResource(avatarCoordinates);
        }
    } else {
        Object size = width + "x" + height;
        long lastModified = storageService.checkSizedResource(size, avatarCoordinates);
        if (lastModified > 0 && webRequest.checkNotModified(lastModified)) {
            notModified = true;
        } else {
            inputStream = storageService.loadSizedResource(size, avatarCoordinates);
        }
    }
    //
    if (notModified) {
        return new ResponseEntity<byte[]>(HttpStatus.NOT_MODIFIED);
    }
    //
    return WebUtils.getResponseEntity(FileCopyUtils.copyToByteArray(inputStream), MediaType.IMAGE_PNG);
}

From source file:com.vmware.appfactory.application.controller.AppApiController.java

/**
 * Get a single application, in our own JSON format.
 *
 * @param id Application ID./*from   w  ww  .  j av  a2  s  .c om*/
 * @return
 */
@ResponseBody
@RequestMapping(value = "/apps/{id}", method = RequestMethod.GET)
@Nullable
public Application getApplication(@PathVariable Long id, @Nonnull WebRequest webRequest)
        throws AfNotFoundException {
    // Finding lastUpdated on this table is slower than fetching the record by PK.
    Application app = _daoFactory.getApplicationDao().find(id);
    if (app == null) {
        throw new AfNotFoundException("Invalid app Id " + id);
    }
    long lastModified = app.getModified();
    if (0 != lastModified && webRequest.checkNotModified(lastModified)) {
        // shortcut exit - no further processing necessary
        return null;
    }

    return app;
}

From source file:org.fao.geonet.api.groups.GroupsApi.java

/**
 * Writes the group logo image to the response. If no image is found it
 * writes a 1x1 transparent PNG. If the request contain cache related
 * headers it checks if the resource has changed and return a 304 Not
 * Modified response if not changed.//ww  w  . j  a  v  a 2s. com
 *
 * @param groupId    the group identifier.
 * @param webRequest the web request.
 * @param request    the native HTTP Request.
 * @param response   the servlet response.
 * @throws ResourceNotFoundException if no group exists with groupId.
 */
@ApiOperation(value = "Get the group logo image.", nickname = "get", notes = API_GET_LOGO_NOTE)
@RequestMapping(value = "/{groupId}/logo", method = RequestMethod.GET)
public void getGroupLogo(
        @ApiParam(value = "Group identifier", required = true) @PathVariable(value = "groupId") final Integer groupId,
        @ApiIgnore final WebRequest webRequest, HttpServletRequest request, HttpServletResponse response)
        throws ResourceNotFoundException {

    Locale locale = languageUtils.parseAcceptLanguage(request.getLocales());

    ApplicationContext context = ApplicationContextHolder.get();
    ServiceContext serviceContext = ApiUtils.createServiceContext(request, locale.getISO3Country());
    if (context == null) {
        throw new RuntimeException("ServiceContext not available");
    }

    GroupRepository groupRepository = context.getBean(GroupRepository.class);

    Group group = groupRepository.findOne(groupId);
    if (group == null) {
        throw new ResourceNotFoundException(
                messages.getMessage("api.groups.group_not_found", new Object[] { groupId }, locale));
    }
    try {
        final Path logosDir = Resources.locateLogosDir(serviceContext);
        final Path harvesterLogosDir = Resources.locateHarvesterLogosDir(serviceContext);
        final String logoUUID = group.getLogo();
        Path imagePath = null;
        FileTime lastModifiedTime = null;
        if (StringUtils.isNotBlank(logoUUID) && !logoUUID.startsWith("http://")
                && !logoUUID.startsWith("https//")) {
            imagePath = Resources.findImagePath(logoUUID, logosDir);
            if (imagePath == null) {
                imagePath = Resources.findImagePath(logoUUID, harvesterLogosDir);
            }
            if (imagePath != null) {
                lastModifiedTime = Files.getLastModifiedTime(imagePath);
                if (webRequest.checkNotModified(lastModifiedTime.toMillis())) {
                    // webRequest.checkNotModified sets the right HTTP headers
                    response.setDateHeader("Expires", System.currentTimeMillis() + SIX_HOURS * 1000L);

                    return;
                }
                response.setContentType(AttachmentsApi.getFileContentType(imagePath));
                response.setContentLength((int) Files.size(imagePath));
                response.addHeader("Cache-Control", "max-age=" + SIX_HOURS + ", public");
                response.setDateHeader("Expires", System.currentTimeMillis() + SIX_HOURS * 1000L);
                FileUtils.copyFile(imagePath.toFile(), response.getOutputStream());
            }
        }

        if (imagePath == null) {
            // no logo image found. Return a transparent 1x1 png
            lastModifiedTime = FileTime.fromMillis(0);
            if (webRequest.checkNotModified(lastModifiedTime.toMillis())) {
                return;
            }
            response.setContentType("image/png");
            response.setContentLength(TRANSPARENT_1_X_1_PNG.length);
            response.addHeader("Cache-Control", "max-age=" + SIX_HOURS + ", public");
            response.getOutputStream().write(TRANSPARENT_1_X_1_PNG);
        }

    } catch (IOException e) {
        Log.error(LOGGER,
                String.format("There was an error accessing the logo of the group with id '%d'", groupId));
        throw new RuntimeException(e);
    }
}