C# Feed类代码示例

        public static void UpdateFeedTile(Feed feed)
        {
            // タイルが存在しない場合は何もしない
            if (!SecondaryTile.Exists(feed.Id))
            {
                return;
            }

            // フィード内に記事が無い場合は何もしない
            if (!feed.FeedItems.Any())
            {
                return;
            }

            // 大きなテキスト1つと折り返し3行表示されるテキストを持つテンプレートを取得
            var template = TileUpdateManager.GetTemplateContent(
                TileTemplateType.TileSquareText02);
            // textタグに表示内容を設定
            var texts = template.GetElementsByTagName("text");
            texts[0].InnerText = feed.Title;
            texts[1].InnerText = feed.FeedItems.First().Title;

            // タイルを更新するオブジェクトを取得
            var updater = TileUpdateManager.CreateTileUpdaterForSecondaryTile(feed.Id);
            // 有効期間5分の通知を設定
            updater.Update(new TileNotification(template)
            {
                ExpirationTime = DateTimeOffset.Now.AddMinutes(5)
            });
        }

    public GDataResultAggregator(string playlistURL)
    {
      YouTubeRequestSettings settings = new YouTubeRequestSettings(APPNAME, CLIENTID, DEVELKEY);
      YouTubeRequest request = new YouTubeRequest(settings);

      _videoFeed = request.Get<Video>(new Uri(playlistURL));
    }

    protected void btnUpdate_Click(object sender, EventArgs e)
    {
        FeedRepository rfeed = new FeedRepository();
        Utility Util = new Utility();
        Feed feed = new Feed();

        feed.Author = Author.Value;
        feed.Title = title.Value;
        feed.Summary = Summary.Value;
        feed.Description = Description.Value;
        feed.Link = Link.Value;
        feed.CategoryID = Int16.Parse(CategoryName.SelectedValue);
        feed.FeedID = Int32.Parse(FeedID.Value);
        feed.isValid = Int16.Parse(FeedState.SelectedValue);
        feed.DisplayIn = "";
        for (int i = 0; i < CheckBoxDisplayIn.Items.Count; i++)
        {
            if (CheckBoxDisplayIn.Items[i].Selected)
            {
                if (feed.DisplayIn.Length > 0)
                    feed.DisplayIn += ",";
                feed.DisplayIn += CheckBoxDisplayIn.Items[i].Value;
            }
        }
        if (feed.DisplayIn.Length == 0)
            feed.DisplayIn = "-1";
        rfeed.Update(feed);

        feed = null;
        Util = null;
        rfeed = null;
    }

        public void Obter_Quando_UrlValidaLocal_Deve_RetornarFeed()
        {
            var feed = new Feed();

            var result = feed.Obter(@"C:\Users\LaurenceM\Trabalho\teste\MinutoSeguros\MinutoSeguros.UI\" + Parametro.UrlFeedLocal);
            Assert.IsNotNull(result);
        }

        public IEnumerable<Activity> Get(Feed feed, Paging paging)
        {
            SortedSet<Activity> activities = new SortedSet<Activity>(Activity.Comparer);

            foreach (var streamId in feed.Streams)
            {
                var streamIdQuery = Convert.ToBase64String(streamId);

                var prepared = session
                        .Prepare(LoadActivityStreamQueryTemplate)
                        .Bind(streamIdQuery, paging.Timestamp)
                        .SetAutoPage(false)
                        .SetPageSize(paging.Take);

                var rowSet = session.Execute(prepared);
                foreach (var row in rowSet.GetRows())
                {
                    using (var stream = new MemoryStream(row.GetValue<byte[]>("data")))
                    {
                        var storedActivity = (Activity)serializer.Deserialize(stream);
                        activities.Add(storedActivity);
                    }
                }
            }
            return activities.Take(paging.Take);
        }

        private void saveBtn_Click(object sender, EventArgs e)
        {
            feed = new Feed(this.feedTitle.Text, this.feedDesc.Text, this.feedUrl.Text);
            //feed = new Feed();
            feed.mTitle = this.feedTitle.Text;

            // Save feed to xml
            //feed.Save();

            // Add the feed to the correct channel
            foreach (Channel c in channels)
            {
                if (c.mTitle == selected.Text)
                {
                    c._Add(feed);
                }
            }

            // Add feed to current channel
            selected.Nodes.Add(feed.mTitle);

            // !!!!! use user-defined number of articles to display/refresh at a time. 10 is arbitrary number !!!!!
            feed.refresh(10);

            this.Close();
        }

 public void ReadArticles()
 {
     var feedXml = "<?xml version=\"1.0\" encoding=\"utf-8\"?>" +
         "<feed xmlns=\"http://www.w3.org/2005/Atom\">" +
         "  <title>Example Feed</title>" +
         "  <link href=\"http://example.org/\"/>" +
         "  <updated>2003-12-13T18:30:02Z</updated>" +
         "  <author>" +
         "    <name>John Doe</name>" +
         "  </author>" +
         "  <id>urn:uuid:60a76c80-d399-11d9-b93C-0003939e0af6</id>" +
         "  <entry>" +
         "    <title>Atom-Powered Robots Run Amok</title>" +
         "    <link href=\"http://example.org/2003/12/13/atom03\"/>" +
         "    <id>urn:uuid:1225c695-cfb8-4ebb-aaaa-80da344efa6a</id>" +
         "    <published>2003-12-13T18:30:02Z</published>" +
         "    <updated>2004-01-13T18:30:02Z</updated>" +
         "    <summary>Some text.</summary>" +
         "  </entry>" +
         "</feed>";
     var feed = new Feed();
     _target.Read(feed, XDocument.Parse(feedXml));
     Assert.That(feed.GetHeadChunk(null).Articles.Count, Is.EqualTo(1));
     var art = feed.GetHeadChunk(null).Articles.First();
     Assert.That(art.Title, Is.EqualTo("Atom-Powered Robots Run Amok"));
     Assert.That(art.Link, Is.EqualTo(new Uri("http://example.org/2003/12/13/atom03")));
     Assert.That(art.PublishDate, Is.EqualTo(new DateTime(2003, 12, 13, 18, 30, 2)));
     Assert.That(art.Summary, Is.EqualTo("Some text."));
     Assert.That(art.UniqueId, Is.EqualTo("urn:uuid:1225c695-cfb8-4ebb-aaaa-80da344efa6a"));
 }

        public void DoWork(IRequest request)
        {
            NorthwindConfig config = new NorthwindConfig();
            config.CurrencyCode = "EUR";
            config.CrmUser = "Sdata";
            config.Path = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "Northwind");

            string fileName = Path.Combine(config.Path, "Northwind.mdb");
            FileInfo fileInfo = new FileInfo(fileName);
            string link = _requestContext.ContractLink + "-";

            DatasetFeedEntry entry = new DatasetFeedEntry();
            entry.Id = link;
            entry.Title = fileInfo.Name;

            entry.Published = fileInfo.CreationTime;
            entry.Updated = fileInfo.LastAccessTime;
            entry.Link = link;

            Feed<DatasetFeedEntry> feed = new Feed<DatasetFeedEntry>();
            feed.Id = "Available Datasets";
            feed.Title = "Available Datasets";
            feed.Entries.Add(entry);
            request.Response.Feed = feed;
        }

        /// <summary>
        /// FanIn
        /// </summary>
        public IEnumerable<Activity> Load(Feed feed)
        {
            var snapshot = new Dictionary<byte[], Queue<Activity>>(activityStreamStore.Count);
            foreach (var item in activityStreamStore)
            {
                snapshot.Add(item.Key, new Queue<Activity>(item.Value));
            }

            SortedSet<Activity> buffer = new SortedSet<Activity>(Activity.Comparer);
            var streams = feed.FeedStreams.ToList();
            var streamsCount = streams.Count;

            //  Init
            for (int streamIndexInsideSubsciption = 0; streamIndexInsideSubsciption < streamsCount; streamIndexInsideSubsciption++)
            {
                var streamId = streams[streamIndexInsideSubsciption];
                var activity = snapshot[streamId].Dequeue();
                buffer.Add(activity);
            }

            while (buffer.Count > 0)
            {
                Activity nextActivity = buffer.FirstOrDefault();
                buffer.Remove(nextActivity);
                var streamQueue = snapshot[nextActivity.StreamId];
                if (streamQueue.Count > 0)
                {
                    var candidate = snapshot[nextActivity.StreamId].Dequeue();
                    buffer.Add(candidate);
                }
                yield return nextActivity;
            }
        }

 public UserFeed(Feed feed)
 {
     Name = feed.Name;
     Href = feed.Href;
     BaseUrl = feed.BaseUrl;
     Category = feed.Category;
 }

        public static async Task<bool> CreateTileIfNotExist(Feed feed)
        {
            // 既にタイルが存在する場合は何もしない
            if (SecondaryTile.Exists(feed.Id))
            {
                return false;
            }

            // セカンダリタイルを作成
            var tile = new SecondaryTile(
                // タイルのId
                feed.Id,
                // タイルの短い名前
                feed.Title,
                // タイルの表示名
                feed.Title,
                // タイルからアプリケーションを起動したときに渡される引数
                feed.Id,
                // タイルの名前の表示方法を指定
                TileOptions.ShowNameOnLogo,
                // タイルのロゴを指定
                new Uri("ms-appx:///Assets/Logo.png"));
            // ユーザーにタイルの作成をリクエスト
            return await tile.RequestCreateAsync();
        }

        public void TestAddAccessPoints()
        {
            var capabilityList = CapabilityListTest.CreateTestCapabilityList();
            var feed1 = new Feed {Name = "Test", CapabilityLists = {capabilityList}};
            var feed2 = new Feed {Name = "Test", CapabilityLists = {capabilityList}};
            using (var applyFlag1 = new TemporaryFlagFile("0install-unit-tests"))
            using (var applyFlag2 = new TemporaryFlagFile("0install-unit-tests"))
            {
                var accessPoints1 = new AccessPoint[] {new MockAccessPoint {ID = "id1", Capability = "my_ext1", ApplyFlagPath = applyFlag1}};
                var accessPoints2 = new AccessPoint[] {new MockAccessPoint {ID = "id2", Capability = "my_ext2", ApplyFlagPath = applyFlag2}};

                Assert.AreEqual(0, _integrationManager.AppList.Entries.Count);
                var appEntry1 = _integrationManager.AddApp(new FeedTarget(FeedTest.Test1Uri, feed1));
                _integrationManager.AddAccessPoints(appEntry1, feed1, accessPoints1);
                Assert.AreEqual(1, _integrationManager.AppList.Entries.Count, "Should implicitly create missing AppEntries");
                Assert.IsTrue(applyFlag1.Set, "Should apply AccessPoint");
                applyFlag1.Set = false;

                Assert.DoesNotThrow(() => _integrationManager.AddAccessPoints(appEntry1, feed1, accessPoints1), "Duplicate access points should be silently reapplied");
                Assert.IsTrue(applyFlag1.Set, "Duplicate access points should be silently reapplied");

                _integrationManager.AddAccessPoints(appEntry1, feed1, accessPoints2);
                applyFlag2.Set = false;

                var appEntry2 = _integrationManager.AddApp(new FeedTarget(FeedTest.Test2Uri, feed2));
                Assert.Throws<ConflictException>(() => _integrationManager.AddAccessPoints(appEntry2, feed2, accessPoints2), "Should prevent access point conflicts");
                Assert.IsFalse(applyFlag2.Set, "Should prevent access point conflicts");
            }
        }

        // 每日清除过期feed
        public virtual void ClearFeeds()
        {
            DateTime lastClearTime = config.Instance.Site.LastFeedClearTime;
            if (cvt.IsDayEqual( lastClearTime, DateTime.Now )) return;

            Feed feed = new Feed();
            EntityInfo ei = Entity.GetInfo( feed );
            String table = ei.TableName;

            // TODO 支持其他数据库类型，
            // 清除所有30天前的feed
            int dayCount = config.Instance.Site.FeedKeepDay;
            String sql = "";
            DatabaseType dbtype = ei.DbType;
            if (dbtype == DatabaseType.SqlServer)
                sql = "delete from " + table + " where datediff(day, created, getdate())>" + dayCount;
            else if (dbtype == DatabaseType.Access)
                sql = "delete from " + table + " where datediff('d', created, now())>" + dayCount;
            else if( dbtype == DatabaseType.MySql)
                sql = "delete from " + table + " where datediff(created, now())>" + dayCount;
            else
                throw new NotImplementedException( "not implemented database function : datediff" );

            db.RunSql<Feed>( sql );

            config.Instance.Site.Update( "LastFeedClearTime", DateTime.Now );
        }

		public static void AddFeed(Feed post)
		{
			string action = string.Empty;
			if (post is FeedNews)
			{
				action = NewsResource.UserActivity_AddNewsFeed;
			}
			else if (post is FeedPoll)
			{
				action = NewsResource.UserActivity_AddPollFeed;
			}
			if (!string.IsNullOrEmpty(action))
			{
				UserActivity ua = ApplyCustomeActivityParams(
					post,
					ComposeActivityByFeed(post),
					action,
					new Guid(post.Creator),
					UserActivityConstants.ContentActionType,
					UserActivityConstants.NormalContent
				);
			    ua.HtmlPreview = post.Text;
				PublishInternal(ua);
			}
		}

        public override bool VisibleFor(Feed feed, object data, Guid userId)
        {
            if (!WebItemSecurity.IsAvailableForUser(ProductID.ToString(), userId)) return false;

            var file = (FileEntry)data;

            bool targetCond;
            if (feed.Target != null)
            {
                if (!string.IsNullOrEmpty(file.SharedToMeBy) && file.SharedToMeBy == userId.ToString()) return false;

                var owner = new Guid((string)feed.Target);
                var groupUsers = CoreContext.UserManager.GetUsersByGroup(owner).Select(x => x.ID).ToList();
                if (!groupUsers.Any())
                {
                    groupUsers.Add(owner);
                }
                targetCond = groupUsers.Contains(userId);
            }
            else
            {
                targetCond = true;
            }

            return targetCond &&
                   new FileSecurity(new DaoFactory()).CanRead(file, userId);
        }