private int ReadSource(Source source,bool? IsForTest)
{
var count = 0;
var client = new WebClient();
try
{
using (var stream = client.OpenRead(source.StreamUrl))
{
try
{
#region RssFeed
RssFeed feed = new RssFeed();
feed.Load(stream);
foreach (var i in feed.Channel.Items)
{
try
{
if (ReadFeedItem(i, source,IsForTest))
count++;
Thread.Sleep(500);
}
catch (Exception e)
{
var failed = new FailedUrl();
failed.Url = i.Link.ToString();
failed.Exception = e.Message;
this.Data.FailedUrls.Add(failed);
this.Data.SaveChanges();
continue;
}
}
#endregion RssFeed
}
catch (FormatException f)
{
#region AtomFeed
AtomFeed afeed = new AtomFeed();
using (var astream = client.OpenRead(source.StreamUrl))
{
afeed.Load(astream);
foreach (var i in afeed.Entries)
{
try
{
if (ReadFeedItem(i, source,IsForTest))
count++;
Thread.Sleep(500);
}
catch (Exception e)
{
var failed = new FailedUrl();
failed.Url = i.Links.FirstOrDefault().ToString();
failed.Exception = e.Message;
this.Data.FailedUrls.Add(failed);
this.Data.SaveChanges();
continue;
}
}
}
#endregion AtomFeed
}
Source s = this.Data.Sources.FirstOrDefault(d => d.Id == source.Id);
s.LastUpdated = DateTime.Now;
this.Data.Sources.Update(s);
this.Data.SaveChanges();
}
//try
//{
// if (count > 0)
// CacheManager.Clear(CacheRegions.News);
//}
//catch (Exception e)
//{
// //TODO handle exc
//}
}
catch (Exception e)
{
//TODO handle exc
}
Console.WriteLine(source.Name);
return count;
}
private void UpdateOldItem(string url, Source source, NewsItem oldItem)
{
if (!oldItem.Categories.Any(c => c.Id == source.CategoryId))
{
oldItem.Categories.Add(this.Data.Categories.All().FirstOrDefault(s => s.Id == source.CategoryId));
this.Data.SaveChanges();
}
//Parse the article
var forUpdateArticle = this.Data.NewsItems.All().FirstOrDefault(s => s.Id == oldItem.Id);
if (forUpdateArticle == null && string.IsNullOrEmpty(forUpdateArticle.Content))
{
forUpdateArticle = ParseArticle(url, source.SourceWebsite.Name);
this.Data.NewsItems.Update(forUpdateArticle);
this.Data.SaveChanges();
}
}
private bool ReadFeedItem(AtomEntry i, Source source,bool? IsForTest)
{
//Check if there is another article with the same title
var url = i.Links.FirstOrDefault(l => l.ContentType == "text/html");
NewsItem oldItem = this.Data.NewsItems.FirstOrDefault(s => s.Title.Trim().ToLower() == i.Title.Content.Trim().ToLower());
if (oldItem != null && new DateTime(oldItem.DatePublished).Date == i.UpdatedOn.Date)
{
UpdateOldItem(url.Uri.ToString(), source, oldItem);
return false;
}
//Parse the article
var article = ParseArticle(url.Uri.ToString(), source.SourceWebsite.Name);
if (article == null)
{
throw new Exception(string.Format("Connot Parse Article url : {0}", url));
}
if (string.IsNullOrEmpty(article.Href))
article.Href = url.Uri.ToString();
//Check if there is already an article
var oldArticle = this.Data.NewsItems.All().FirstOrDefault(s => s.Href == article.Href);
//If its new one
if (oldArticle == null)
{
article.Media = source.SourceWebsite.Name;
if (string.IsNullOrEmpty(article.Header))
{
article.Header = Regex.Replace(i.Title.Content, @"<img\s[^>]*>(?:\s*?</img>)?", "", RegexOptions.IgnoreCase);
}
article.Title = article.Header;
article.MainPic = article.MainPic;
article.DatePublished = (i.UpdatedOn == DateTime.MinValue ? DateTime.Now : i.UpdatedOn).Ticks;
article.Categories.Add(this.Data.Categories.All().FirstOrDefault(s => s.Id == source.CategoryId));
article.UsedForClassication = false;
article.IsForTest = IsForTest.HasValue ? IsForTest.Value : false;
this.Data.NewsItems.Add(article);
this.Data.SaveChanges();
return true;
}
//if we already have it
else
{
if (!oldArticle.Categories.Any(c => c.Id == source.CategoryId))
{
oldArticle.Categories.Add(this.Data.Categories.All().FirstOrDefault(s => s.Id == source.CategoryId));
this.Data.NewsItems.Update(article);
this.Data.SaveChanges();
}
}
return false;
}
private bool ReadFeedItem(RssItem i, Source source,bool? IsForTest)
{
//Check if there is another article with the same title
NewsItem oldItem = Data.NewsItems.All().FirstOrDefault(n => n.Title.Trim().ToLower() == i.Title.Trim().ToLower());
if (oldItem != null && new DateTime(oldItem.DatePublished).Date == i.PublicationDate.Date)
{
UpdateOldItem(i.Link.ToString(), source, oldItem);
return false;
}
//Parse the article
var article = ParseArticle(i.Link.ToString(), source.SourceWebsite.Name);
if (article == null || string.IsNullOrEmpty(article.Content))
{
throw new Exception(string.Format("Connot Parse Article url : {0}", i.Link.ToString()));
}
if (string.IsNullOrEmpty(article.Href))
article.Href = i.Link.ToString();
//Check if there is already an article
var oldArticle = this.Data.NewsItems.All().FirstOrDefault(s => s.Href == article.Href);
//If its new one
if (oldArticle == null)
{
article.Media = source.SourceWebsite.Name;
if (string.IsNullOrEmpty(article.Header))
{
article.Header = Regex.Replace(i.Title, @"<img\s[^>]*>(?:\s*?</img>)?", "", RegexOptions.IgnoreCase);
}
//newsitem.RealId = article.PartitionKey;
article.Title = article.Header;
article.CleanContent = BaseHelper.ScrubHtml(article.Content);
article.DatePublished = (i.PublicationDate == DateTime.MinValue ? DateTime.Now : i.PublicationDate).Ticks;
article.Categories.Add(this.Data.Categories.All().FirstOrDefault(s => s.Id == source.CategoryId));
article.UsedForClassication = false;
article.IsForTest = IsForTest.HasValue ? IsForTest.Value : false;
this.Data.NewsItems.Add(article);
this.Data.SaveChanges();
return true;
}
//if we already have it
else
{
if (!oldArticle.Categories.Any(c => c.Id == source.CategoryId))
{
oldArticle.Categories.Add(this.Data.Categories.All().FirstOrDefault(s => s.Id == source.CategoryId));
this.Data.NewsItems.Update(article);
this.Data.SaveChanges();
}
}
return false;
}
