private IEnumerable <SyndicationItem> GetFromCacheOrFactory(SyndicationItemFactory syndicationFactory, SyndicationFeedPageType currentPage, IEnumerable <Category> parsedCategories)
{
var cacheTime = currentPage.CacheFeedforSeconds;
string categoryQuery = string.Empty;
foreach (var category in parsedCategories)
{
categoryQuery += category.Name;
}
var cacheKey = string.Format("SyndicationFeedPageType_{0}_{1}", currentPage.ContentLink.ToString(), categoryQuery);
var cachedItems = CacheManager.Get(cacheKey) as IEnumerable <SyndicationItem>;
if (cachedItems == null)
{
cachedItems = syndicationFactory.GetSyndicationItems();
if (cacheTime > 0)
{
var cachePolicy = new CacheEvictionPolicy(new[] { DataFactoryCache.PageCommonCacheKey(currentPage.ContentLink) }
, new TimeSpan(0, 0, cacheTime),
CacheTimeoutType.Absolute);
CacheManager.Insert(cacheKey, syndicationFactory.GetSyndicationItems(), cachePolicy);
}
}
return(cachedItems);
}
public ActionResult Index(SyndicationFeedPageType currentPage, string categories)
{
var parsedCategories = ParseCategories(categories);
var feedContext = new SyndicationFeedContext(currentPage, parsedCategories.ToList());
var siteUrl = SiteDefinition.Current.SiteUrl.ToString().TrimEnd('/');
var currentUri = new Uri(siteUrl + UrlResolver.Current.GetUrl(currentPage.ContentLink));
var syndicationFactory = new SyndicationItemFactory(ContentLoader, FeedContentResolver, FeedFilterer, ItemDescriptionProvider, ItemModifier, feedContext);
var items = GetFromCacheOrFactory(syndicationFactory, currentPage, parsedCategories);
var feed = new SyndicationFeed
{
Items = items,
Id = siteUrl + UrlResolver.Current.GetUrl(ContentReference.StartPage),
Title = new TextSyndicationContent(currentPage.PageName),
Description = new TextSyndicationContent(currentPage.Description),
Language = currentPage.LanguageBranch,
Generator = "http://nuget.episerver.com/en/OtherPages/Package/?packageId=Chief2moro.SyndicationFeeds"
};
feed.Links.Add(new SyndicationLink()
{
Uri = currentUri, RelationshipType = "self"
});
if (currentPage.Category != null)
{
var categoryRepository = ServiceLocator.Current.GetInstance <CategoryRepository>();
foreach (var category in currentPage.Category)
{
feed.Categories.Add(new SyndicationCategory(categoryRepository.Get(category).Description));
}
}
if (feed.Items.Any())
{
feed.LastUpdatedTime = feed.Items.Max(m => m.LastUpdatedTime);
}
if (currentPage.FeedFormat == FeedFormat.Atom)
{
return(new AtomActionResult(feed));
}
return(new RssActionResult(feed));
}
public ActionResult Index(SyndicationFeedPageType currentPage)
{
var syndicationFactory = new SyndicationItemFactory(ContentLoader, FeedContentResolver, currentPage);
var feed = new SyndicationFeed
{
Items = syndicationFactory.GetSyndicationItems(),
Id = currentPage.ContentGuid.ToString(),
Title = new TextSyndicationContent(currentPage.PageName),
Description = new TextSyndicationContent(currentPage.Description),
};
if (feed.Items.Any())
{
feed.LastUpdatedTime = feed.Items.Max(m => m.LastUpdatedTime);
}
if (currentPage.FeedFormat == FeedFormat.Atom)
{
return(new AtomActionResult(feed));
}
return(new RssActionResult(feed));
}
