Exemple #1
0
        public void AddFeed(Feed addfeed)
        {
            using (RssEntities addcontext = new RssEntities())
            {

                try
                {
                    addcontext.Feeds.AddObject(addfeed);
                    addcontext.SaveChanges();
                }
                catch (Exception e)
                {
                    string msg = e.Message;
                    string reason = "AddFeed Feeds.AddObject Exception";
                    throw new FaultException<DBRequestFault>
                        (new DBRequestFault(msg), reason);
                }
                try
                {
                    List<News> feedNews = LoadNewsFromFeed(addfeed);
                    foreach (News item in feedNews)
                    {
                        addcontext.News.AddObject(item);
                    }
                    addcontext.SaveChanges();
                }
                catch (Exception e)
                {
                    string msg = e.Message;
                    string reason = "AddFeed News.AddObjectt Exception";
                    throw new FaultException<DBRequestFault>
                        (new DBRequestFault(msg), reason);
                }
            }
        }
Exemple #2
0
        private void UpdateFeed(Feed feed)
        {
            try
            {

                using (XmlReader reader = XmlReader.Create(feed.URL))
                {
                    XmlDocument xmlDoc = new XmlDocument();
                    xmlDoc.Load(reader);
                    //compare the item.LastbuildDate
                    int result = DateTime.Compare(feed.LastTimeUpdate, GetLastBuildDate(xmlDoc));
                    if (result < 0 || feed.News.Count == 0)
                    {
                        using (RssEntities localContext = new RssEntities())
                        {
                            Feed delFeed = localContext.Feeds.First(f => f.ID == feed.ID);
                            localContext.Feeds.DeleteObject(delFeed);
                            localContext.SaveChanges();

                            using (RssEntities addContext = new RssEntities())
                            {
                                Feed addfeed = new Feed
                                {
                                    ID = feed.ID,
                                    Name = feed.Name,
                                    URL = feed.URL
                                };
                                addContext.Feeds.AddObject(addfeed);
                                addContext.SaveChanges();
                                List<News> feedNews = LoadNewsFromFeed(addfeed);
                                foreach (News item in feedNews)
                                {
                                    addContext.News.AddObject(item);
                                }
                                addContext.SaveChanges();
                            }

                        }
                    }
                }
            }
            catch (FileNotFoundException fnfEx)
            {
                string msg = fnfEx.Message;
                string reason = "UpdateFeed FileNotFoundException";
                throw new FaultException<DBRequestFault>
                    (new DBRequestFault(msg), reason);
            }
            catch (Exception ex)
            {
                string msg = ex.Message;
                string reason = "UpdateFeed Exception";
                throw new FaultException<DBRequestFault>
                    (new DBRequestFault(msg), reason);
            }
        }
Exemple #3
0
 public RssService()
 {
     context = new RssEntities();
 }