external notifications are now based on Events.

NzbDrone.Core/ExternalNotification/Twitter.cs

@@ -0,0 +1,35 @@
+using System.Linq;
+using NLog;
+using NzbDrone.Core.Configuration;
+using NzbDrone.Core.Providers;
+using NzbDrone.Core.Tv;
+
+namespace NzbDrone.Core.ExternalNotification
+{
+    public class Twitter : ExternalNotificationBase
+    {
+        private readonly TwitterProvider _twitterProvider;
+
+        public Twitter(IExternalNotificationRepository repository, TwitterProvider twitterProvider, Logger logger)
+            : base(repository, logger)
+        {
+            _twitterProvider = twitterProvider;
+        }
+
+        public override string Name
+        {
+            get { return "Twitter"; }
+        }
+
+        protected override void OnGrab(string message)
+        {
+            _twitterProvider.SendTweet("Download Started: " + message);
+        }
+
+        protected override void OnDownload(string message, Series series)
+        {
+            _twitterProvider.SendTweet("Download Completed: " + message);
+        }
+
+    }
+}