Example usage for org.springframework.ui Model hashCode

Introduction

In this page you can find the example usage for org.springframework.ui Model hashCode.

Prototype

@HotSpotIntrinsicCandidate
public native int hashCode();

Source Link

Document

Returns a hash code value for the object.

Usage

From source file:org.jasig.portlet.newsreader.mvc.portlet.reader.NewsController.java

@RenderMapping(params = "action=fullStory")
public ModelAndView fullStory(@RequestParam Long activeFeed, @RequestParam int itemIndex,
        @RequestParam int page, RenderRequest request, RenderResponse response, Model model) throws Exception {
    log.trace("fullStory (NewsController)");

    //Security check that the feed belongs to the user
    String setName = request.getPreferences().getValue("newsSetName", "default");
    NewsSet set = setCreationService.getNewsSet(setName, request);
    List<NewsConfiguration> feeds = new ArrayList<NewsConfiguration>();
    feeds.addAll(set.getNewsConfigurations());
    Collections.sort(feeds);/*from w  w w.  j  a  v  a  2  s .c o  m*/
    JSONArray jsonFeeds = new JSONArray();
    List<String> knownFeeds = new ArrayList<String>();
    for (NewsConfiguration feed : feeds) {
        if (feed.isDisplayed()) {
            JSONObject jsonFeed = new JSONObject();
            jsonFeed.put("id", feed.getId());
            jsonFeed.put("name", feed.getNewsDefinition().getName());
            jsonFeeds.add(jsonFeed);
            knownFeeds.add(String.valueOf(feed.getId()));
        }
    }
    log.debug("Known feeds: " + knownFeeds.toString());
    model.addAttribute("feeds", jsonFeeds);
    if (!knownFeeds.contains(activeFeed.toString())) {
        activeFeed = null;
        model.addAttribute("message", "Not allowed.");
        log.debug("Not allowd.");
    }
    model.addAttribute("activeFeed", activeFeed);

    NewsConfiguration feedConfig = newsStore.getNewsConfiguration(activeFeed);
    log.debug("On render Active feed is " + feedConfig.getId());

    try {
        // get an instance of the adapter for this feed
        INewsAdapter adapter = (INewsAdapter) applicationContext
                .getBean(feedConfig.getNewsDefinition().getClassName());
        // retrieve the feed from this adaptor
        NewsFeed sharedFeed = adapter.getSyndFeed(feedConfig, page);
        if (sharedFeed != null) {
            NewsFeedItem item = sharedFeed.getEntries().get(itemIndex);
            model.addAttribute("storyTitle", item.getTitle());

            FullStory fullStory = item.getFullStory();
            model.addAttribute("fullStory", fullStory.getFullStoryText());
        } else {
            log.warn("Failed to get feed from adapter.");
            model.addAttribute("message",
                    "The news \"" + feedConfig.getNewsDefinition().getName() + "\" is currently unavailable.");
        }

        PortletPreferences prefs = request.getPreferences();
        model.addAttribute("feedView", prefs.getValue("feedView", "select"));

    } catch (NoSuchBeanDefinitionException ex) {
        log.error("News class instance could not be found: " + ex.getMessage());
        model.addAttribute("message",
                "The news \"" + feedConfig.getNewsDefinition().getName() + "\" is currently unavailable.");
    } catch (NewsException ex) {
        log.warn(ex);
        model.addAttribute("message",
                "The news \"" + feedConfig.getNewsDefinition().getName() + "\" is currently unavailable.");
    } catch (Exception ex) {
        log.error(ex);
        model.addAttribute("message",
                "The news \"" + feedConfig.getNewsDefinition().getName() + "\" is currently unavailable.");
    }

    String etag = String.valueOf(model.hashCode());
    String requestEtag = request.getETag();

    // if the request ETag matches the hash for this response, send back
    // an empty response indicating that cached content should be used
    if (request.getETag() != null && etag.equals(requestEtag)) {
        response.getCacheControl().setExpirationTime(1);
        response.getCacheControl().setUseCachedContent(true);
        // returning null appears to cause the response to be committed
        // before returning to the portal, so just use an empty view
        return new ModelAndView("empty", Collections.<String, String>emptyMap());
    }

    // create new content with new validation tag
    response.getCacheControl().setETag(etag);
    response.getCacheControl().setExpirationTime(1);

    String viewName = viewResolver.getFullStoryView(request);
    return new ModelAndView(viewName, model.asMap());
}

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